利用XMLHTTP下载文件

来源：互联网发布：淘宝助理菜鸟统一模板编辑：程序博客网时间：2024/05/27 09:46

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>");}elseResponse.Write (_xmlhttp.statusText);Response.End();}

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