在.NET中利用XMLHTTP下载文件

来源：作者：出处：巧巧读书 2006-09-04 进入讨论组

关键词：
microsoft
.net
asp

　　利用XMLHTTP下载文件，和以前的方法一样，先添加引用－COM－Microsoft XML 3.0，然后在代码开始处写：

using MSXML2;

下面就是主要的代码：

private void Page_Load(object sender, System.EventArgs e)
{

string Url = "http://dotnet.ASPx.cc/Images/LOGOSite.gif";
string StringFileName = Url.Substring(Url.LastIndexOf("/") + 1);
string StringFilePath = Request.PhysicalApplicationPath;
if(!StringFilePath.EndsWith("/")) StringFilePath += "/";
MSXML2.XMLHTTP _XMLhttp = new MSXML2.XMLHTTPClass();
_XMLhttp.open("GET",Url,false,null,null);
_XMLhttp.send("");
if( _XMLhttp.readyState == 4 )
{
if(System.IO.File.Exists(StringFilePath + StringFileName))
System.IO.File.Delete(StringFilePath + StringFileName);
System.IO.FileStream fs = new System.IO.FileStream(StringFilePath + StringFileName, System.IO.FileMode.CreateNew);
System.IO.BinaryWriter w = new System.IO.BinaryWriter(fs);
w.Write((byte[])_XMLhttp.responseBody);
w.Close();
fs.Close();
Response.Write ("文件已经得到。<br><a href='../../" + Request.ApplicationPath + StringFileName +"' target='_blank'>");
Response.Write ("查看" + StringFileName + "</a>");
}
else
Response.Write (_XMLhttp.statusText);
Response.End();
}查看 http://www.qqread.com/xml-soap/e238381.html