利用XMLHTTP下载文件 - 中国WEB开发者网络 (http://www.webasp.net) -- 技术教程 (http://www.webasp.net/article/) --- 利用XMLHTTP下载文件 (http://www.webasp.net/article/15/14265.htm) |
| -- 作者:未知 -- 发布日期: 2004-10-27 |
| 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(); } |
| webasp.net |