再问：我想用Response.WriteFile();防盗链播放MP3，为什么每次运行都弹出提示打开或者保存，而不能直接播放

[gasover]

这个问题的我上一个帖子：http://expert.csdn.net/Expert/topic/2365/2365649.xml?temp=.7590601

每次弹出一个文件下载对话框，让我打开，保存，或者取消。
而我在网页上直接打开一个http的mp3地址，都可以直接播放的。

我的代码是这样写的，请师兄指点：

FileInfo file = new System.IO.FileInfo("E:\\Songs\\apengyouzaijia.rm");

Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "application/octet-stream";


Response.WriteFile(file.FullName);

Response.End();

[rgbcn]

不能这样写，
这样写，不管什么类型的文件，
都会以下载的形式出现

[rgbcn]

你用转向语句试试。

[gasover]

转向不就暴露 mp3 地址了吗， 而且我不打算给放歌那个文件夹启动iis服务，让它和internet 分离

[xingzhi]

"Content-disposition",attachment;参数强制文件必须保存，你可以取消它。

[gasover]

问题解决了，谢谢大家的力量：
FileInfo file = new System.IO.FileInfo("E:\\煤炭网程序\\Songs\\apengyouzaijia.rm");

// clear the current output content from the buffer
Response.Clear();
// add the header that specifies
Response.AddHeader("Content-Disposition", "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

string fileName = file.Name.ToLower();
int lastIndex = fileName.LastIndexOf(".");
fileName = fileName.Substring(lastIndex);

// 根据文件后缀指定文件的Mime类型
switch (fileName)
{
case ".rm":
Response.ContentType = "application/vnd.rn-realmedia";
break;
case ".mp3":
Response.ContentType = "audio/mpeg3";
break;
case ".asf":
Response.ContentType = "video/x-ms-asf";
break;
case ".avi":
Response.ContentType = "video/avi";
break;
case ".wav":
Response.ContentType = "audio/wav";
break;
case ".mpg":
Response.ContentType = "video/mpeg";
break;
case "mpeg":
Response.ContentType = "video/mpeg";
break;
default:
Response.ContentType = "application/octet-stream";
break;
}

// send the file stream to the client
Response.WriteFile(file.FullName);
// stop the execution of this page
Response.End();

[eagle_hb]

MP3收集