通过Web Services上传和下载文件
2008-09-09 12:03
375 查看
随着Internet技术的发展和跨平台需求的日益增加,Web Services的应用越来越广,我们不但需要通过Web Services传递字符串信息,而且需要传递二进制文件信息。下面,我们就分别介绍如何通过Web Services从服务器下载文件到客户端和从客户端通过Web Services上载文件到服务器。
一:通过Web Services显示和下载文件
我们这里建立的Web Services的名称为GetBinaryFile,提供两个公共方法:分别是GetImage()和GetImageType(),前者返回二进制文 件字节数组,后者返回文件类型,其中,GetImage()方法有一个参数,用来在客户端选择要显示或下载的文件名字。这里我们所显示和下载的文件可以不 在虚拟目录下,采用这个方法的好处是:可以根据权限对文件进行显示和下载控制,从下面的方法我们可以看出,实际的文件位置并没有在虚拟目录下,因此可以更 好地对文件进行权限控制,这在对安全性有比较高的情况下特别有用。这个功能在以前的ASP程序中可以用Stream对象实现。为了方便读者进行测试,这里 列出了全部的源代码,并在源代码里进行介绍和注释。
首先,建立GetBinaryFile.asmx文件:
我们可以在VS.NET里新建一个C#的aspxWebCS工程,然后“添加新项”,选择“Web服务”,并设定文件名为:GetBinaryFile.asmx,在“查看代码”中输入以下代码,即:GetBinaryFile.asmx.cs:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Collections;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.ComponentModel;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Data;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Diagnostics;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.Services;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.IO;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
namespace xml.sz.luohuedu.net.aspxWebCS
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// GetBinaryFile 的摘要说明。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// Web Services名称:GetBinaryFile
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 功能:返回服务器上的一个文件对象的二进制字节数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
[WebService(Namespace="http://xml.sz.luohuedu.net/", Description="在Web Services里利用.NET框架进行传递二进制文件。")]
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public class GetBinaryFile : System.Web.Services.WebService
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
Component Designer generated code#region Component Designer generated code
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//Web 服务设计器所必需的
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private IContainer components = null;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 清理所有正在使用的资源。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected override void Dispose( bool disposing )
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![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
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if(disposing && components != null)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
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components.Dispose();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
base.Dispose(disposing);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
#endregion
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public class Images: System.Web.Services.WebService
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// Web 服务提供的方法,返回给定文件的字节数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
[WebMethod(Description="Web 服务提供的方法,返回给定文件的字节数组")]
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public byte[] GetImage(string requestFileName)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////得到服务器端的一个图片
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
///如果你自己测试,注意修改下面的实际物理路径 /转意符
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(requestFileName == null || requestFileName == "")
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return getBinaryFile("D://Picture.GIF");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
else
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return getBinaryFile("D://" + requestFileName);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// getBinaryFile:返回所给文件路径的字节数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// <param name="filename"></param>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// <returns></returns>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public byte[] getBinaryFile(string filename)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(File.Exists(filename))
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
try
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////打开现有文件以进行读取。
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FileStream s = File.OpenRead(filename);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return ConvertStreamToByteBuffer(s);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
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catch(Exception e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return new byte[0];
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
else
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return new byte[0];
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// ConvertStreamToByteBuffer:把给定的文件流转换为二进制字节数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// <param name="theStream"></param>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// <returns></returns>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public byte[] ConvertStreamToByteBuffer(System.IO.Stream theStream)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//在未知流大小的情况下,将流转为二进制字节数组的方法。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//每次从theStream中读取一个字结,然后放入内存流中,然后
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//再通过内存流中的ToArray()方法将其转换为二进制数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
int b1;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
System.IO.MemoryStream tempStream = new System.IO.MemoryStream();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
while((b1=theStream.ReadByte())!=-1)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
tempStream.WriteByte(((byte)b1));
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return tempStream.ToArray();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
[WebMethod(Description="Web 服务提供的方法,返回给定文件类型。")]
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public string GetImageType()
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////这里只是测试,您可以根据实际的文件类型进行动态输出
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return "image/gif";
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif)
}
一旦我们创建了上面的asmx文件,进行编译后,我们就可以编写客户端的代码来进行调用这个Web Services了。
我们先“添加Web引用”,输入:http://localhost/aspxWebCS/GetBinaryFile.asmx。下面,我们编写 显示文件的中间文件:GetBinaryFileShow.aspx,这里,我们只需要在后代码里编写代码即可, GetBinaryFileShow.aspx.cs文件内容如下:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Collections;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.ComponentModel;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Data;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Drawing;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.SessionState;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI.WebControls;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI.HtmlControls;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.Services;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
namespace aspxWebCS
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// GetBinaryFileShow 的摘要说明。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public class GetBinaryFileShow : System.Web.UI.Page
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private void Page_Load(object sender, System.EventArgs e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// 在此处放置用户代码以初始化页面
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////定义并初始化文件对象;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
xml.sz.luohuedu.net.aspxWebCS.GetBinaryFile.Images oImage;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
oImage = new xml.sz.luohuedu.net.aspxWebCS.GetBinaryFile.Images();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////得到二进制文件字节数组;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
byte[] image = oImage.GetImage("");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////转换为支持存储区为内存的流
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
System.IO.MemoryStream memStream = new System.IO.MemoryStream(image);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////定义并实例化Bitmap对象
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Bitmap bm = new Bitmap(memStream);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////根据不同的条件进行输出或者下载;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Clear();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////如果请求字符串指定下载,就下载该文件;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
///否则,就显示在浏览器中。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(Request.QueryString["Download"]=="1")
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Buffer = true;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.ContentType = "application/octet-stream";
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////这里下载输出的文件名字 ok.jpg 为例子,你实际中可以根据情况动态决定。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.AddHeader("Content-Disposition","attachment;filename=ok.jpg");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
else
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.ContentType = oImage.GetImageType();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.BinaryWrite(image);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.End();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
Web Form Designer generated code override#region Web Form Designer generated code override
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected void OnInit(EventArgs e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// CODEGEN:该调用是 ASP.NET Web 窗体设计器所必需的。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// InitializeComponent();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
base.OnInit(e);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 此方法的内容。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private void InitializeComponent()
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
this.Load += new System.EventHandler(this.Page_Load);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
#endregion
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif)
}
最后,我们就编写最终的浏览页面:GetBinaryFile.aspx,这个文件很简单,只需要aspx文件即可,内容如下:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<%@ Page language="c#" Codebehind="GetBinaryFile.aspx.cs" AutoEventWireup="false" Inherits="GetBinaryFile.GetBinaryFile" %>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<HTML>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<HEAD>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<title>通过Web Services显示和下载文件 </title>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="CODE_LANGUAGE" Content="C#">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="vs_defaultClientScript" content="JavaScript">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</HEAD>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<body MS_POSITIONING="GridLayout">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<form id="GetBinaryFile" method="post" runat="server">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<FONT face="宋体">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<asp:HyperLink id="HyperLink1" NavigateUrl="GetBinaryFileShow.aspx?Download=1" runat="server">下载文件</asp:HyperLink>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<br>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<!--下面是直接显示文件-->
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<asp:Image id="Image1" ImageUrl="GetBinaryFileShow.aspx" runat="server"></asp:Image>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</FONT>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</form>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</body>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</HTML>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
二:通过Web Services上载文件
向服务器上载文件可能有许多种方法,在利用Web Services上载文件的方法中,下面的这个方法应该是最简单的了。我们仍象前面的例子那样,首先建立Upload.asmx文件,其Upload.asmx.cs内容如下,里面已经做了注释:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Collections;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.ComponentModel;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Data;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Diagnostics;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.Services;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.IO;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
namespace xml.sz.luohuedu.net.aspxWebCS
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// Upload 的摘要说明。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
[WebService(Namespace="http://xml.sz.luohuedu.net/", Description="在Web Services里利用.NET框架进上载文件。")]
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public class Upload : System.Web.Services.WebService
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public Upload()
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//CODEGEN:该调用是 ASP.NET Web 服务设计器所必需的
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
InitializeComponent();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
Component Designer generated code#region Component Designer generated code
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//Web 服务设计器所必需的
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private IContainer components = null;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 此方法的内容。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private void InitializeComponent()
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 清理所有正在使用的资源。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected override void Dispose( bool disposing )
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(disposing && components != null)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
components.Dispose();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
base.Dispose(disposing);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
#endregion
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
[WebMethod(Description="Web 服务提供的方法,返回是否文件上载成功与否。")]
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public string UploadFile(byte[] fs,string FileName)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
try
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//定义并实例化一个内存流,以存放提交上来的字节数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
MemoryStream m = new MemoryStream(fs);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//定义实际文件对象,保存上载的文件。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
FileStream f = new FileStream(Server.MapPath(".") + "/" + FileName, FileMode.Create);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//把内内存里的数据写入物理文件
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
m.WriteTo(f);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
m.Close();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
f.Close();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
f = null;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
m = null;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return "文件已经上传成功。";
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
catch(Exception ex)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return ex.Message;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif)
}要上载文件,必须提供一个表单,来供用户进行文件的选择,下面我们就建立这样一个页面Upload.aspx,用来提供文件上载:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<%@ Page language="c#" Codebehind="Upload.aspx.cs" AutoEventWireup="false" Inherits="aspxWebCS.Upload" %>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<HTML>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<HEAD>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<title>通过Web Services上载文件 </title>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.0">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="vs_defaultClientScript" content="JavaScript">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</HEAD>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<body MS_POSITIONING="GridLayout">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<form id="Form1" method="post" runat="server" enctype="multipart/form-data">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<INPUT id="MyFile" type="file" runat="server" NAME="MyFile">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<br>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<br>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<asp:Button id="Button1" runat="server" Text="上载文件"></asp:Button>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</form>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</body>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</HTML>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
我们要进行处理的是在后代码里面,下面详细的介绍,Upload.aspx.cs:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Collections;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.ComponentModel;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Data;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Drawing;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.SessionState;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI.WebControls;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI.HtmlControls;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.Services;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.IO;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
namespace aspxWebCS
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// Upload 的摘要说明。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 利用该方法通过Web Services上载文件
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public class Upload : System.Web.UI.Page
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected System.Web.UI.HtmlControls.HtmlInputFile MyFile;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected System.Web.UI.WebControls.Button Button1;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private void Page_Load(object sender, System.EventArgs e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// 在此处放置用户代码以初始化页面
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
Web Form Designer generated code override#region Web Form Designer generated code override
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected void OnInit(EventArgs e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// // CODEGEN:该调用是 ASP.NET Web 窗体设计器所必需的。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// InitializeComponent();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
base.OnInit(e);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 此方法的内容。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private void InitializeComponent()
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
this.Button1.Click += new System.EventHandler(this.Button1_Click);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
this.Load += new System.EventHandler(this.Page_Load);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
#endregion
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private void Button1_Click(object sender, System.EventArgs e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////首先得到上载文件信息和文件流
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(MyFile.PostedFile != null)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
System.Web.HttpFileCollection oFiles;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
oFiles = System.Web.HttpContext.Current.Request.Files;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(oFiles.Count < 1)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Write ("请选择文件。");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.End();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
string FilePath = oFiles[0].FileName;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(FilePath == "" || FilePath == null)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Write ("请选择一个文件。");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.End();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
string FileName = FilePath.Substring(FilePath.LastIndexOf("/")+1);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
try
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////处理上载的文件流信息。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//所有流的Read or Write 函数只能接受字节数组
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
byte[] b = new byte[oFiles[0].ContentLength];
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
System.IO.Stream fs;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
xml.sz.luohuedu.net.aspxWebCS.Upload o;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
o = new xml.sz.luohuedu.net.aspxWebCS.Upload();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
fs = (System.IO.Stream)oFiles[0].InputStream;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
fs.Read(b, 0, oFiles[0].ContentLength);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////调用Web Services的UploadFile方法进行上载文件。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Write(o.UploadFile(b, FileName));
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
fs.Close();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
catch(Exception ex)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Write(ex.Message);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
else
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Write("请选择文件");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif)
} 最后,需要注意的是:在保存文件时,您应该确保指定文件的完整路径(例如,"C:/MyFiles/Picture.jpg"),并确保为 ASP.NET 使用的帐户提供要存储文件的目录的写权限。上载大文件时,可使用 元素的 maxRequestLength 属性来增加文件大小的最大允许值,例如:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<configuration>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<system.web>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<httpRuntime maxRequestLength="1048576" executionTimeout="3600" />
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</system.web>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</configuration>
其中:maxRequestLength:指示 ASP.NET 支持的HTTP方式上载的最大字节数。该限制可用于防止因用户将大量文件传递到该服务器而导致的拒绝服务攻击。指定的大小以 KB 为单位。默认值为 4096 KB (4 MB)。executionTimeout:指示在被 ASP.NET 自动关闭前,允许执行请求的最大秒数。在当文件超出指定的大小时,如果浏览器中会产生 DNS 错误或者出现服务不可得到的情况,也请修改以上的配置,把配置数加大。
另外,上载大文件时,还可能会收到以下错误信息:
aspnet_wp.exe (PID: 1520) 被回收,因为内存消耗超过了 460 MB(可用 RAM 的百分之 60)。
如果遇到此错误信息,请增加应用程序的 Web.config 文件的 元素中 memoryLimit 属性的值。例如:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<configuration>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<system.web>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<processModel memoryLimit="80"/>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</system.web>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</configuration>
我在自己的机器上测试,可以上传50M以上的文件。以上代码在Windows XP + .NET 1.0 + VS.NET2002下测试通过。
PS:由于是转的,没怎么测试过,简单的看了一下,如果出现类型错误的把,就把空间命名去掉,在调用服务的时候使用new实例化调用吧
一:通过Web Services显示和下载文件
我们这里建立的Web Services的名称为GetBinaryFile,提供两个公共方法:分别是GetImage()和GetImageType(),前者返回二进制文 件字节数组,后者返回文件类型,其中,GetImage()方法有一个参数,用来在客户端选择要显示或下载的文件名字。这里我们所显示和下载的文件可以不 在虚拟目录下,采用这个方法的好处是:可以根据权限对文件进行显示和下载控制,从下面的方法我们可以看出,实际的文件位置并没有在虚拟目录下,因此可以更 好地对文件进行权限控制,这在对安全性有比较高的情况下特别有用。这个功能在以前的ASP程序中可以用Stream对象实现。为了方便读者进行测试,这里 列出了全部的源代码,并在源代码里进行介绍和注释。
首先,建立GetBinaryFile.asmx文件:
我们可以在VS.NET里新建一个C#的aspxWebCS工程,然后“添加新项”,选择“Web服务”,并设定文件名为:GetBinaryFile.asmx,在“查看代码”中输入以下代码,即:GetBinaryFile.asmx.cs:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Collections;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.ComponentModel;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Data;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Diagnostics;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.Services;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.IO;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
namespace xml.sz.luohuedu.net.aspxWebCS
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// GetBinaryFile 的摘要说明。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// Web Services名称:GetBinaryFile
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 功能:返回服务器上的一个文件对象的二进制字节数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
[WebService(Namespace="http://xml.sz.luohuedu.net/", Description="在Web Services里利用.NET框架进行传递二进制文件。")]
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public class GetBinaryFile : System.Web.Services.WebService
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
Component Designer generated code#region Component Designer generated code
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//Web 服务设计器所必需的
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private IContainer components = null;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 清理所有正在使用的资源。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected override void Dispose( bool disposing )
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(disposing && components != null)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
components.Dispose();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
base.Dispose(disposing);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
#endregion
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public class Images: System.Web.Services.WebService
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// Web 服务提供的方法,返回给定文件的字节数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
[WebMethod(Description="Web 服务提供的方法,返回给定文件的字节数组")]
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public byte[] GetImage(string requestFileName)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////得到服务器端的一个图片
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
///如果你自己测试,注意修改下面的实际物理路径 /转意符
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(requestFileName == null || requestFileName == "")
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return getBinaryFile("D://Picture.GIF");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
else
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return getBinaryFile("D://" + requestFileName);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// getBinaryFile:返回所给文件路径的字节数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// <param name="filename"></param>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// <returns></returns>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public byte[] getBinaryFile(string filename)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(File.Exists(filename))
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
try
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////打开现有文件以进行读取。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
FileStream s = File.OpenRead(filename);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return ConvertStreamToByteBuffer(s);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
catch(Exception e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return new byte[0];
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
else
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return new byte[0];
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// ConvertStreamToByteBuffer:把给定的文件流转换为二进制字节数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// <param name="theStream"></param>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// <returns></returns>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public byte[] ConvertStreamToByteBuffer(System.IO.Stream theStream)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//在未知流大小的情况下,将流转为二进制字节数组的方法。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//每次从theStream中读取一个字结,然后放入内存流中,然后
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//再通过内存流中的ToArray()方法将其转换为二进制数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
int b1;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
System.IO.MemoryStream tempStream = new System.IO.MemoryStream();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
while((b1=theStream.ReadByte())!=-1)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
tempStream.WriteByte(((byte)b1));
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return tempStream.ToArray();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
[WebMethod(Description="Web 服务提供的方法,返回给定文件类型。")]
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public string GetImageType()
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////这里只是测试,您可以根据实际的文件类型进行动态输出
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return "image/gif";
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif)
}
一旦我们创建了上面的asmx文件,进行编译后,我们就可以编写客户端的代码来进行调用这个Web Services了。
我们先“添加Web引用”,输入:http://localhost/aspxWebCS/GetBinaryFile.asmx。下面,我们编写 显示文件的中间文件:GetBinaryFileShow.aspx,这里,我们只需要在后代码里编写代码即可, GetBinaryFileShow.aspx.cs文件内容如下:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Collections;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.ComponentModel;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Data;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Drawing;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.SessionState;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI.WebControls;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI.HtmlControls;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.Services;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
namespace aspxWebCS
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// GetBinaryFileShow 的摘要说明。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public class GetBinaryFileShow : System.Web.UI.Page
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private void Page_Load(object sender, System.EventArgs e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// 在此处放置用户代码以初始化页面
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////定义并初始化文件对象;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
xml.sz.luohuedu.net.aspxWebCS.GetBinaryFile.Images oImage;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
oImage = new xml.sz.luohuedu.net.aspxWebCS.GetBinaryFile.Images();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////得到二进制文件字节数组;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
byte[] image = oImage.GetImage("");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////转换为支持存储区为内存的流
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
System.IO.MemoryStream memStream = new System.IO.MemoryStream(image);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////定义并实例化Bitmap对象
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Bitmap bm = new Bitmap(memStream);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////根据不同的条件进行输出或者下载;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Clear();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////如果请求字符串指定下载,就下载该文件;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
///否则,就显示在浏览器中。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(Request.QueryString["Download"]=="1")
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Buffer = true;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.ContentType = "application/octet-stream";
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////这里下载输出的文件名字 ok.jpg 为例子,你实际中可以根据情况动态决定。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.AddHeader("Content-Disposition","attachment;filename=ok.jpg");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
else
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.ContentType = oImage.GetImageType();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.BinaryWrite(image);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.End();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
Web Form Designer generated code override#region Web Form Designer generated code override
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected void OnInit(EventArgs e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// CODEGEN:该调用是 ASP.NET Web 窗体设计器所必需的。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// InitializeComponent();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
base.OnInit(e);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 此方法的内容。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private void InitializeComponent()
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
this.Load += new System.EventHandler(this.Page_Load);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
#endregion
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif)
}
最后,我们就编写最终的浏览页面:GetBinaryFile.aspx,这个文件很简单,只需要aspx文件即可,内容如下:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<%@ Page language="c#" Codebehind="GetBinaryFile.aspx.cs" AutoEventWireup="false" Inherits="GetBinaryFile.GetBinaryFile" %>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<HTML>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<HEAD>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<title>通过Web Services显示和下载文件 </title>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="CODE_LANGUAGE" Content="C#">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="vs_defaultClientScript" content="JavaScript">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</HEAD>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<body MS_POSITIONING="GridLayout">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<form id="GetBinaryFile" method="post" runat="server">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<FONT face="宋体">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<asp:HyperLink id="HyperLink1" NavigateUrl="GetBinaryFileShow.aspx?Download=1" runat="server">下载文件</asp:HyperLink>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<br>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<!--下面是直接显示文件-->
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<asp:Image id="Image1" ImageUrl="GetBinaryFileShow.aspx" runat="server"></asp:Image>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</FONT>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</form>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</body>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</HTML>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
二:通过Web Services上载文件
向服务器上载文件可能有许多种方法,在利用Web Services上载文件的方法中,下面的这个方法应该是最简单的了。我们仍象前面的例子那样,首先建立Upload.asmx文件,其Upload.asmx.cs内容如下,里面已经做了注释:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Collections;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.ComponentModel;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Data;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Diagnostics;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.Services;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.IO;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
namespace xml.sz.luohuedu.net.aspxWebCS
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// Upload 的摘要说明。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
[WebService(Namespace="http://xml.sz.luohuedu.net/", Description="在Web Services里利用.NET框架进上载文件。")]
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public class Upload : System.Web.Services.WebService
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public Upload()
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//CODEGEN:该调用是 ASP.NET Web 服务设计器所必需的
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
InitializeComponent();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
Component Designer generated code#region Component Designer generated code
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//Web 服务设计器所必需的
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private IContainer components = null;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 此方法的内容。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private void InitializeComponent()
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 清理所有正在使用的资源。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected override void Dispose( bool disposing )
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(disposing && components != null)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
components.Dispose();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
base.Dispose(disposing);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
#endregion
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
[WebMethod(Description="Web 服务提供的方法,返回是否文件上载成功与否。")]
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public string UploadFile(byte[] fs,string FileName)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
try
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//定义并实例化一个内存流,以存放提交上来的字节数组。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
MemoryStream m = new MemoryStream(fs);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//定义实际文件对象,保存上载的文件。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
FileStream f = new FileStream(Server.MapPath(".") + "/" + FileName, FileMode.Create);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//把内内存里的数据写入物理文件
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
m.WriteTo(f);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
m.Close();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
f.Close();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
f = null;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
m = null;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return "文件已经上传成功。";
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
catch(Exception ex)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
return ex.Message;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif)
}要上载文件,必须提供一个表单,来供用户进行文件的选择,下面我们就建立这样一个页面Upload.aspx,用来提供文件上载:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<%@ Page language="c#" Codebehind="Upload.aspx.cs" AutoEventWireup="false" Inherits="aspxWebCS.Upload" %>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<HTML>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<HEAD>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<title>通过Web Services上载文件 </title>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="GENERATOR" content="Microsoft Visual Studio .NET 7.0">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="CODE_LANGUAGE" content="Visual Basic 7.0">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="vs_defaultClientScript" content="JavaScript">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</HEAD>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<body MS_POSITIONING="GridLayout">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<form id="Form1" method="post" runat="server" enctype="multipart/form-data">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<INPUT id="MyFile" type="file" runat="server" NAME="MyFile">
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<br>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<br>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<asp:Button id="Button1" runat="server" Text="上载文件"></asp:Button>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</form>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</body>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</HTML>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
我们要进行处理的是在后代码里面,下面详细的介绍,Upload.aspx.cs:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Collections;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.ComponentModel;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Data;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Drawing;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.SessionState;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI.WebControls;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.UI.HtmlControls;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.Web.Services;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
using System.IO;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
namespace aspxWebCS
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// Upload 的摘要说明。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 利用该方法通过Web Services上载文件
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
public class Upload : System.Web.UI.Page
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected System.Web.UI.HtmlControls.HtmlInputFile MyFile;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
protected System.Web.UI.WebControls.Button Button1;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
private void Page_Load(object sender, System.EventArgs e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// 在此处放置用户代码以初始化页面
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
Web Form Designer generated code override#region Web Form Designer generated code override
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protected void OnInit(EventArgs e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
// // CODEGEN:该调用是 ASP.NET Web 窗体设计器所必需的。
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// InitializeComponent();
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base.OnInit(e);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**//// <summary>
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/// 设计器支持所需的方法 - 不要使用代码编辑器修改
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
/// 此方法的内容。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
/// </summary>
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private void InitializeComponent()
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
this.Button1.Click += new System.EventHandler(this.Button1_Click);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
this.Load += new System.EventHandler(this.Page_Load);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
#endregion
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private void Button1_Click(object sender, System.EventArgs e)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////首先得到上载文件信息和文件流
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(MyFile.PostedFile != null)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
System.Web.HttpFileCollection oFiles;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
oFiles = System.Web.HttpContext.Current.Request.Files;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(oFiles.Count < 1)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
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Response.Write ("请选择文件。");
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Response.End();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
string FilePath = oFiles[0].FileName;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
if(FilePath == "" || FilePath == null)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Write ("请选择一个文件。");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.End();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
string FileName = FilePath.Substring(FilePath.LastIndexOf("/")+1);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
try
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////处理上载的文件流信息。
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
//所有流的Read or Write 函数只能接受字节数组
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
byte[] b = new byte[oFiles[0].ContentLength];
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
System.IO.Stream fs;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
xml.sz.luohuedu.net.aspxWebCS.Upload o;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
o = new xml.sz.luohuedu.net.aspxWebCS.Upload();
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
fs = (System.IO.Stream)oFiles[0].InputStream;
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
fs.Read(b, 0, oFiles[0].ContentLength);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
/**////调用Web Services的UploadFile方法进行上载文件。
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Response.Write(o.UploadFile(b, FileName));
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fs.Close();
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}
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catch(Exception ex)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Write(ex.Message);
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
else
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif)
...{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
Response.Write("请选择文件");
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif)
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif)
} 最后,需要注意的是:在保存文件时,您应该确保指定文件的完整路径(例如,"C:/MyFiles/Picture.jpg"),并确保为 ASP.NET 使用的帐户提供要存储文件的目录的写权限。上载大文件时,可使用 元素的 maxRequestLength 属性来增加文件大小的最大允许值,例如:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<configuration>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<system.web>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<httpRuntime maxRequestLength="1048576" executionTimeout="3600" />
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</system.web>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</configuration>
其中:maxRequestLength:指示 ASP.NET 支持的HTTP方式上载的最大字节数。该限制可用于防止因用户将大量文件传递到该服务器而导致的拒绝服务攻击。指定的大小以 KB 为单位。默认值为 4096 KB (4 MB)。executionTimeout:指示在被 ASP.NET 自动关闭前,允许执行请求的最大秒数。在当文件超出指定的大小时,如果浏览器中会产生 DNS 错误或者出现服务不可得到的情况,也请修改以上的配置,把配置数加大。
另外,上载大文件时,还可能会收到以下错误信息:
aspnet_wp.exe (PID: 1520) 被回收,因为内存消耗超过了 460 MB(可用 RAM 的百分之 60)。
如果遇到此错误信息,请增加应用程序的 Web.config 文件的 元素中 memoryLimit 属性的值。例如:
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<configuration>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<system.web>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
<processModel memoryLimit="80"/>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</system.web>
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif)
</configuration>
我在自己的机器上测试,可以上传50M以上的文件。以上代码在Windows XP + .NET 1.0 + VS.NET2002下测试通过。
PS:由于是转的,没怎么测试过,简单的看了一下,如果出现类型错误的把,就把空间命名去掉,在调用服务的时候使用new实例化调用吧
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