我想给用户,链接到我在服务器上的文件,但我不想让他们直接链接 使用asp.net C#
例如:
http://www.DomainName.com/Files/Downloads/setup.zip
转换为
答案 0 :(得分:5)
创建一个页面,例如DownloadMgr.aspx
,它从查询字符串中读取文件名并将其写入响应流。
类似的东西:
protected void Page_Load(object sender, EventArgs e)
{
string[] allowedExtensions = new string[] {".pdf",".zip",".txt", ".png"};
if (!this.Page.IsPostBack)
{
if (Request.QueryString["File"] != null)
{
if (Request.QueryString["File"].Contains("pdf"))
Response.ContentType = "application/pdf"; //varies depending on the file being streamed
Response.AddHeader("Content-Disposition", "attachment; filename=" + Request.QueryString["File"]);
if(allowedFiles.Contains(Path.GetExtension(Request.QueryString["File"])))
Response.WriteFile(Server.MapPath(Request.QueryString["File"]));
}
}
}
现在您的所有链接都可以是:http://youhost.com/DownloadMgr.aspx?File=abc.pdf