asp.net 点击“下载”弹出“下载文件”对话框,网页与要下载的文件不在同一服务器上
#region private void FileDownLoad(string filename)
/// <summary>
/// 用户下载文件
/// </summary>
/// <param name="filename">下载文件的路径</param>
private void FileDownLoad(string filename)
{
string destFileName = filename;
destFileName = Server.MapPath("./") + destFileName;
destFileName = Server.UrlDecode(destFileName);
if (File.Exists(destFileName))
{
FileInfo fi = new FileInfo(filename);
Response.Clear();
Response.ClearHeaders();
Response.Buffer = true;
Response.Charset = "GB2312";
//添加头信息,为 "文件下载/另存为 "对话框指定默认文件名
Response.AppendHeader("Content-Disposition", "attachment;filename="
+ HttpUtility.UrlEncode(Path.GetFileName(destFileName),
System.Text.Encoding.UTF8));
Response.AppendHeader("Content-Length", fi.Length.ToString());
Response.ContentType = "text/plain";
Response.Filter.Close();
Response.WriteFile(destFileName);
Response.Flush();
Response.End();
}
else
{
Response.Write("<script language = javascript>alert('下载出错')</script>");
}
}
#endregion
/// <summary>
/// 用户下载文件
/// </summary>
/// <param name="filename">下载文件的路径</param>
private void FileDownLoad(string filename)
{
string destFileName = filename;
destFileName = Server.MapPath("./") + destFileName;
destFileName = Server.UrlDecode(destFileName);
if (File.Exists(destFileName))
{
FileInfo fi = new FileInfo(filename);
Response.Clear();
Response.ClearHeaders();
Response.Buffer = true;
Response.Charset = "GB2312";
//添加头信息,为 "文件下载/另存为 "对话框指定默认文件名
Response.AppendHeader("Content-Disposition", "attachment;filename="
+ HttpUtility.UrlEncode(Path.GetFileName(destFileName),
System.Text.Encoding.UTF8));
Response.AppendHeader("Content-Length", fi.Length.ToString());
Response.ContentType = "text/plain";
Response.Filter.Close();
Response.WriteFile(destFileName);
Response.Flush();
Response.End();
}
else
{
Response.Write("<script language = javascript>alert('下载出错')</script>");
}
}
#endregion