使用数据流下载文件
正常web服务器上的文件如.aspx.cs.txt.html等IIS会解释执行
.cs等默认是不能访问的。要实现下载这件文件要用到数据流!
这样不用理会IIS
private void Page_Load(object sender, System.EventArgs e)
{
// retrieve the path of the file to download, and create
// a FileInfo object to read its properties
string path = Server.MapPath(Request.Params["File"]);
System.IO.FileInfo file = new System.IO.FileInfo(path);
![](/Images/OutliningIndicators/InBlock.gif)
// clear the current output content from the buffer
Response.Clear();
// add the header that specifies the default filename for the Download/SaveAs dialog
Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
// add the header that specifies the file size, so that the browser
// can show the download progress
Response.AddHeader("Content-Length", file.Length.ToString());
// specify that the response is a stream that cannot be read by the
// client and must be downloaded
Response.ContentType = "application/octet-stream";
// send the file stream to the client
Response.WriteFile(file.FullName);
// stop the execution of this page
Response.End();
}
.cs等默认是不能访问的。要实现下载这件文件要用到数据流!
这样不用理会IIS
代码如下。DownLoad.aspx.cs
![](/Images/OutliningIndicators/None.gif)
![](/Images/OutliningIndicators/ExpandedBlockStart.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/InBlock.gif)
![](/Images/OutliningIndicators/ExpandedBlockEnd.gif)
![](/Images/OutliningIndicators/None.gif)
posted on 2004-09-17 12:21 HelloSnoopy 阅读(473) 评论(0) 编辑 收藏 举报