代码如下：
private void dataGrid_ItemCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e)
{
if(e.CommandName=="listen")
{
string ID = dataGrid.DataKeys[e.Item.ItemIndex].ToString();
string sql = "select record from table where id="+ID+"";
SqlDataReader Sdr = Class.ReturnDataReader(sql);
string path = Sdr[0].ToString();
if(!System.IO.File.Exists(path))
{
Response.Write("<script language='javascript'>alert('文件不存在!');</script>");
}
else
{
string url = path.Replace(@"d:\temp\","");
url = url.Replace("\\","/");
url = "http://202.168.194.124/"+url;
Response.Redirect(url);
}
}
if(e.CommandName=="down")
{
string ID = dataGrid.DataKeys[e.Item.ItemIndex].ToString();
string sql = "select record from table where id="+ID+"";
SqlDataReader Sdr = Class.ReturnDataReader(sql);
string path = Sdr[0].ToString();
if(!System.IO.File.Exists(path))
{
Response.Write("<script language='javascript'>alert('文件不存在!');</script>");
}
else
{
System.IO.FileInfo file = new System.IO.FileInfo(path);
Response.Clear();
Response.Charset="GB2312";
Response.ContentEncoding=System.Text.Encoding.UTF8;
Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(file.Name));
Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "audio/x-wav";
Response.WriteFile(file.FullName);
Response.End();
}
}
}
以上代码点 试听（listen）按纽时，报错：HTTP 错误 404 - 找不到文件。但点 下载（down）按纽时，可以正常下载。我估计是代码
string url = path.Replace(@"f:\temp\","");
url = url.Replace("\\","/");
url = "http://202.168.194.124/"+url;
Response.Redirect(url);
代码中url取得的路径问题。其中record字段存放的是音位文件路径（如：d:\temp\music\xinyang.wav）。202.168.194.124是本机外网IP，本机在局域网中的IP为192.168.1.123 。还请各位高手指点，这段代码该怎么写才能读取到音乐文件。（音乐文件是确实存在的）
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