通过webService下载sharepoint文档库文件

第一、基本原理：

1.通过对象模型得到SPItem.File得到文档库文件

2.通过WebService将item.File.OpenBinary()返回

3.将文件保存到服务器

4.从服务器下载到本地

第二、具体代码：

WebService

[WebMethod]
public byte[]  GetAttachmentFileflow(string webPath,string list,int fileId)
{
try
{
using (SPSite site = new SPSite(webPath))
{
SPWeb web = site.OpenWeb();
SPList lists = web.Lists[list];
SPListItem item = lists.Items.GetItemById(fileId);
return item.File.OpenBinary();
}

}
catch (Exception)
{
return new byte[] { };
}

}

保存到服务器，下载的本地

protected void Page_Load(object sender, EventArgs e)
{
File.Delete(path);
string webPath = "http://18:8099/";
string list = "Shared Documents";
localhost.Service server = new localhost.Service();
byte[] b = server.GetAttachmentFileflow(webPath, list, 1594);//1594为文件ID通过SQL取得
File.WriteAllBytes(path, b);
}

protected void BtnClick(object sender, EventArgs e)
{
FileStream fileStrem = new FileStream(path, FileMode.Open);
long fileSize = fileStrem.Length;
Context.Response.ContentType = "application/octet-stream";//设置报文
Context.Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode("下载.docx", Encoding.UTF8));//下载文件名需要更改
Context.Response.AddHeader("Content-Length", fileSize.ToString());
byte[] fileBuffer = new byte[fileSize];
fileStrem.Read(fileBuffer, 0, (int)fileSize);
Context.Response.BinaryWrite(fileBuffer);
fileStrem.Dispose();//释放资源
Context.Response.End();
}

第三、源码：

环境：vs2005 ,sp2007

注：服务器端对象模型

http://app.yinxiang.com/l/AAwg2HN1vt9HW78Q29c5fzexeu1Z-DbJh3c/