在网上会经常看到点击某个下载文件时,会弹出“下载”提示框,提示框里包括:打开、保存、取消的选项,那么如何利用asp.net语言实现这个功能呢?下面把代码贡献如下:
asp.net下载文件 ///
/// 下载文件
///
/// 文件路径(绝对路径)
public static void DownloadData(string path)
{
if (File.Exists(path))
{
FileInfo DownloadFile = new FileInfo(path);
System.Web.HttpContext.Current.Response.Clear();
System.Web.HttpContext.Current.Response.ClearHeaders();
System.Web.HttpContext.Current.Response.Buffer = false;
System.Web.HttpContext.Current.Response.ContentType = "application/octet-stream";
System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(DownloadFile.FullName, System.Text.Encoding.UTF8));
System.Web.HttpContext.Current.Response.AppendHeader("Content-Length", DownloadFile.Length.ToString());
System.Web.HttpContext.Current.Response.WriteFile(DownloadFile.FullName);
System.Web.HttpContext.Current.Response.Flush();
System.Web.HttpContext.Current.Response.End();
}
else
{
throw new Exception("提示:下载失败,找不到该文件");
}
}
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