怎么实现 itextSharp 生成pdf,让user 选折下载还是直接打开生成好的pdf.

Question

现在项目需要用itextSharp 生成pdf,因为是　server\client 程序，所以要求生成完pdf 后弹出一个对话框，让user 选折下载还是直接打开生成好的pdf.请问怎么实现？
谢谢大家！

Answer 1

Dim filepath As String = Server.MapPath("~/xx.pdf")'放在网站根目录下
If File.Exists(filepath) Then
      Dim filename As String = Path.GetFileName(filepath)
      Response.Clear()
      Response.ContentType = "application/octet-stream"
      Response.AddHeader("Content-Disposition", "attachment; filename=""" & filename & """")
      Response.Flush()
      Response.WriteFile(filepath)
      Response.End()
End If

Answer 2

你自己写浏览器给用户用还是手动发HTTP请求？C/S程序的话是否提示用户是你自己写代码决定的……

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Answer 3

// 1 弹出对话框提示下载文件(不会开新窗口)
// 2 隐藏路径
string fPath = Path.Combine(Server.MapPath("pdf 所在的目录"), "xxx.pdf");
FileStream fFileStream = new FileStream(fPath, FileMode.Open);
long fFileSize = fFileStream.Length;
Context.Response.ContentType = "application/octet-stream";
Context.Response.AddHeader("Content-Disposition", "attachment; filename=\"" + HttpUtility.UrlEncode(Path.GetFileName(fPath), System.Text.Encoding.UTF8) + "\"");
Context.Response.AddHeader("Content-Length", fFileSize.ToString());
byte[] fFileBuffer = new byte[fFileSize];
fFileStream.Read(fFileBuffer, 0, (int)fFileSize);
fFileStream.Close();
Context.Response.BinaryWrite(fFileBuffer);
Context.Response.End();

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