您的位置：首页 > 编程语言 > ASP

asp.net编程中实现导入xls表格操作的实现代码

2011-03-07 11:04 507 查看

在开发应用中xls文件导入到数据库教程是常用的，下面我们来看这款程序：

using system;

using system.configuration;

using system.data;

using system.web;

using system.web.security;

using system.web.ui;

using system.web.ui.htmlcontrols;

using system.web.ui.webcontrols;

using system.web.ui.webcontrols.webparts;

using system.io; public partial class _default : system.web.ui.page

{

protected void page_load(object sender, eventargs e)

{ } /// <summary>

/// 上传excel文件

/// </summary>

/// <param name="inputfile">IT泡泡堂(www.3ppt.com)</param>

/// <returns></returns>

private string uploadxls(system.web.ui.htmlcontrols.htmlinputfile inputfile)

{

string orifilename = string.empty;

string uploadfilepath = string.empty;

string modifyfilename = string.empty;

string fileext = "" ;//文件扩展名

int filesize = 0;//文件大小

try

{

if(inputfile.value != string.empty)

{

//得到文件的大小

filesize = inputfile.postedfile.contentlength;

if(filesize == 0 )

{

throw new exception("导入的excel文件大小为0，请检查是否正确！");

}

//得到扩展名

fileext = inputfile.value.substring(inputfile.value.lastindexof(".")+1);

if(fileext.tolower() != "xls")

{ throw new exception("你选择的文件格式不正确，只能导入excel文件！");

}

//路径

uploadfilepath = server.mappath("~/");

//新文件名

modifyfilename = system.guid.newguid().tostring();

modifyfilename += "."+inputfile.value.substring(inputfile.value.lastindexof(".")+1);

//判断是否有该目录

system.io.directoryinfo dir = new
system.io.directoryinfo(uploadfilepath);
if (!dir.exists)

{

dir.create();

}

orifilename = uploadfilepath+modifyfilename;

//如果存在,删除文件

if(file.exists(orifilename))

{

file.delete(orifilename);

}

// 上传文件

inputfile.postedfile.saveas(orifilename);

}

else

{

throw new exception("请选择要导入的excel文件!"); }

}

catch(exception ex)

{

throw ex;

}

return orifilename;

} protected void btnimport_click(object sender, system.eventargs e)

{ try

{

string strfilename = this.uploadxls(this.comfile);

string strconn = "provider=microsoft.jet.oledb.4.0;data
source=" + strfilename + ";extended properties='excel
8.0;hdr=no;imex=1'";

oledbconnection conn = new oledbconnection(strconn);

oledbdataadapter mycommand = new oledbdataadapter("select * from [sheet1$]", strconn);

dataset mydataset = new dataset();

mycommand.fill(mydataset);

string str = "";

}

catch (exception ex)

{

throw ex;

}

finally

{

deletefile(strfilename);

}

} /// <summary>

/// 删除文件

/// </summary>

/// <param name="filename">待删除的文件名</param>

private void deletefile(string filename)

{

if (filename != string.empty && file.exists(filename))

{

file.delete(filename);

}

}

}

前台代码

<%@ page language="c#" default.asp教程x.cs" inherits="_default" %>

<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en"
"<a
href="http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd</a>">

<html xmlns="<a href="http://www.w3.org/1999/xhtml">http://www.w3.org/1999/xhtml</a>">

<head runat="server">

<title>无标题页</title>

</head>

<body>

<form id="form1" runat="server">

请选择要导入的文件：<input id="fileexcel" style="width: 300px" type="file" size="42" name="filephoto" runat="server" />

<asp:button id="btnimport" text="导入" css教程class="button" runat="server" onclick="btnimport_click"></asp:button><br />

<asp:label id="lblmessage" runat="server" font-bold="true" forecolor="red"></asp:label>

</form>

</body>

</html>

内容来自用户分享和网络整理，不保证内容的准确性，如有侵权内容，可联系管理员处理

标签：

相关文章推荐

新的分享

章节导航