我需要将文件从服务器发送到浏览器(Web客户端) [英] I need send a file from server to browser (web client)

问题描述

但是在下载文件时，程序将继续执行.

But while download file, the program continue execution.

//Create a WebRequest to get the file
            FileWebRequest fileReq = (FileWebRequest)FileWebRequest.Create(this.CaminhoCompleto);

            //Create a response for this request
            FileWebResponse fileResp = (FileWebResponse)fileReq.GetResponse();

            if (fileReq.ContentLength > 0)
                fileResp.ContentLength = fileReq.ContentLength;

            //Get the Stream returned from the response
            stream = fileResp.GetResponseStream();


            // prepare the response to the client. resp is the client Response
            HttpResponse resp = HttpContext.Current.Response;

            

            //ERRO!!!
            teste(stream, resp, fileResp);


            string nomeArq = fileResp.ResponseUri.Segments[(fileResp.ResponseUri.Segments.Length) - 1];

            //Indicate the type of data being sent
            resp.ContentType = "application/octet-stream";

            //Name the file 
            resp.AddHeader("Content-Disposition", "attachment; filename=\"" + nomeArq + "\"");
            resp.AddHeader("Content-Length", fileResp.ContentLength.ToString());

            //await stream.CopyToAsync(resp.OutputStream);

推荐答案

在下面查看我的代码:

Review my code below:

protected void btnDowmLoad_Click(object sender, EventArgs e)
{
    try
    {
        string strURL=txtFileName.Text;
        WebClient req=new WebClient();
        HttpResponse response = HttpContext.Current.Response;
        response.Clear();
        response.ClearContent();
        response.ClearHeaders();
        response.Buffer= true;
        response.AddHeader("Content-Disposition","attachment;filename=\"" + Server.MapPath(strURL) + "\"");
        byte[] data=req.DownloadData(Server.MapPath(strURL));
        response.BinaryWrite(data);
        response.End();
    }
    catch(Exception ex)
    {
     }
}

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