输出PDF文档到ASP.NET页面

protected void Page_Load(object sender, EventArgs e)

{

         try

        {

             //query the pdf path

             string pdfna = this.Request.QueryString["pdf"];

             if (pdfna == null)

                 throw new Exception("This page can not be accessed directly");

             string pdf = "Reports//" + pdfna;

             pdf = Server.MapPath(pdf);

 

             //read all bytes

             if (File.Exists(pdf) == false)

                 throw new Exception("This report is not created");

             FileStream fs = File.Open(pdf, FileMode.Open);

             byte[] buffer = new byte[fs.Length];

             fs.Read(buffer, 0, buffer.Length);

             fs.Close();

 

             //write to response

             Response.ContentType = "application/pdf";

             Response.AddHeader("content-disposition", "filename=" + pdfna);

             Response.AddHeader("content-length", buffer.Length.ToString());

             Response.BinaryWrite(buffer);

         }

         catch (Exception ex)

       {

             Response.Write(ex.Message);

         }

         finally

         {

             Response.Flush();

             Response.Close();

             Response.End();

         }

     }