response.setContentType ("application/pdf");
response.setHeader ("Content-Disposition", "attachment; filename=\"syntax.pdf\"");
ServletOutputStream op = response.getOutputStream ();
while ((in != null) && ((length = in.read(buf)) != -1)) 
{
  // the data has already been read into buf
  System.out.println("Bytes read in: " +        Integer.toString(length));
  op.write(buf,0,length);
}
_________________________

<%@ page contentType="application/download" %>

SO that the page will always be saved to the users harddrive. But I have a problem. When I have a link to my download page the first browser window pops up and says "Run from location.." or "Save file as...".

But if I say Save it the name displayed is some random characters with a .JSP extension. If I save "Run from current location" it then has another save box pop up where I can then save the file and the correct filename is displayed.

Has anyone seen this before and does anyone have a suggestion as to how to fix it?

Part p= getTheAppropriatePartSomeHow();

response.setContentType(p.getContentType());
response.setHeader("Content-Disposition", "filename=\"" + p.getFileName() + "\";");

response.setContentLength(p.getSize());


InputStream is = p.getInputStream();
OutputStream oout = response.getOutputStream();
byte[] b = new byte[4 * 1024];
int len = 0;

       while ((len = is.read(b)) != -1) {
             oout.write(b, 0, len);
        }
        is.close();
        out.flush();
        oout.close();

• If I leave the code as
  
  response.setHeader("Content-Disposition", "filename=\"" + p.getFileName() + "\";");
  then:
  If the file can be shown in the browser, then it is shown:
  e.g. x.jpg c.bmp a.eml note.txt
  
  but not worked for a .doc file and a .mp3 file I couldn't understand why???(Content-Type: APPLICATION/OCTET-STREAM).
  One more thing: it did it well for c.bmp, whose content-type was also APPLICATION/OCTET-STREAM
  
  
• If I have the code as
  response.setHeader("Content-Disposition", "attachment; filename=\"" + p.getFileName() + "\";");
  then: <it forces for a download>
  e.g.
  for a x.jpg file
  BR>it opens a "File Download" Dialog Box, with options "Open file" or "Save to disk"
  
  

  if you choose: "Save To Disk" option then it shows the "Save As" dialog with the CORRECT filename, and by pressing OK, it saves the file, but HOURGLASS never goes away(The problem defined before in the thread) to prevent this I tried to follow the answers given here (like just giving the filename in the Content-Disposition, result is explained above.)
  but if you choose: "Open File From Current Location" then it does nothing, and just the HOURGLASS never goes away

  
  
  
• If I have the code as
  
  response.setHeader("Content-Disposition", "attachment; filename=\"" + p.getFileName() + "\";");
  
  NOTE: The difference is that "Content- Disposition" is written WITH A SPACE in between and not like " Content-Disposition", I saw that in
  
  http://www.jguru.com/faq/view.jsp?EID=252010
  Re: In my servlet I am trying to let the user download… (By seema bhatnagar)
  
  

  Then: If the file can be shown in the browser, then it is shown:
  e.g. x.jpg c.bmp a.eml note.txt
  
  but for c.bmp, whose content-type was also APPLICATION/OCTET-STREAM, and for some other files, it opens a "File Download" Dialog Box, with options "Open file" or "Save to disk"
  
  

  if you choose: in both "Save To Disk" and "Open File" options it SHOWS THE FILENAME IN A FALSE way… (Showing the .jsp file's name to be saved) and saves in this format…
  
  So the only problem with the last case is that IT CAN`T get the correct filenames to where to save the parts.

  
  
  
  ***So since you're reading this sentence, then you probably read all the cases that I tried to explain… If you have any suggestions about how to solve the problems for any case, please share with me, thanks***

In brief;

• download popup for all types of files is better for me
  
• in case that it is easier to construct the other way(I mean -files seen in the browser and download when needed- behaviour like "inline"), then it is acceptable also...
  
  navigator.appVersion returns 4.0 (compatible; MSIE 5.0; Windows NT; DigExt)
  
  and yes I tried the case you suggested, it doesn't work at all... It always opens a download popup, asking whether to "Save" or "Open the document" , and in each case: It responds with the .jsp file's name, so it tries to open/save the content as like a text file...

protected void doGet(HttpServletRequest req, HttpServletResponse resp) {
    String fileToFind = req.getParameter("file");
    
    if(fileToFind == null)      return;
    
    File fname = new File(fileToFind);
    System.out.println("Save As: "+fname.getName() );
    if(!fname.exists())    			return;
    
    FileInputStream istr = null;
    OutputStream ostr = null;
    resp.setContentType("application/binary");
    resp.setHeader("Content-Disposition", "attachment; filename=\"" + fname.getName() + "\";");
    try {  
      istr = new FileInputStream(fname);
      ostr = resp.getOutputStream();
      int curByte=-1;
      
 			while( (curByte=istr.read()) !=-1)
				ostr.write(curByte);
      
      ostr.flush();
    } catch(Exception ex){
      ex.printStackTrace(System.out);
    } finally{
      try {
      	if(istr!=null)  istr.close();
      	if(ostr!=null)  ostr.close();
      } catch(Exception ex){
      	System.out.println("Major Error Releasing Streams: "+ex.toString());
      }
    }  
    try {
    	resp.flushBuffer();
    } catch(Exception ex){
    	System.out.println("Error flushing the Response: "+ex.toString());
  	}
  }

This code uses a FileInputStream. But it's easy to adapt to any stream really. I just used a FileInputStream for demonstration purposes. The actual servlet will be getting the InputStream from an FTP class. Anyone know any problems with this code?

try {
  resp.flushBuffer();
} catch(Exception ex){
  System.out.println("Error flushing the Response: "+ex.toString());
}

Error flushing the Response: java.io.IOException: Response has been close

the logic behind the code is right.. the problem is with IE, and with the way they handle the

response.setHeader("Content-Disposition", "attachment;filename=\"" + fname + "\";");

<html>
<body>
<FORM name="csv_form" action="http://localhost:8000/csvpingserver/mycsvfile.csv"
method= "post">
       <INPUT type= "hidden" value='a 70k chars looooong string'
       name= "csv_data">
       <INPUT id=btn_Download type=submit value=Download>
</form>
</body>
</html>

    public void service(HttpServletRequest req, HttpServletResponse res)
            throws ServletException, IOException

    {

        // Set Content Type

        res.setContentType("application/ms-excel");


        // Init Locals

        String	method	= req.getMethod();

        OutputStream os = res.getOutputStream();

        OutputStreamWriter osw	= new OutputStreamWriter(os, "UTF8");

        PrintWriter out	= new PrintWriter(osw);


        // Validate Method

        if(method.compareToIgnoreCase("POST") != 0)

        {

            out.println("Error:");

            out.close();

            return;

        }


            try
            {

                // Get CSV Data

                String strCsvData = req.getParameter("csv_data");


                // Return CSV Data

                if(strCsvData != null)
                {

                  char [] chCsvData = strCsvData.toCharArray();

                    res.setHeader("Content-Disposition",
                                   "attachment;filename=test.csv");

                    res.setIntHeader("Content-length", chCsvData.length);

                    out.write(chCsvData);

                    out.flush();

                }

                else

                    out.println("Error:  No CSV Data found!");

                out.close();

           }


           catch (Exception e)

           {

                System.err.println("Caught Exception: " + e.getMessage());

                out.println("Error:  Invalid Data sent to Servlet!");

                out.close();

           }

        finally
        {

            if(out != null)
                out.close();

            if(osw != null)
                osw.close();

        }

    }

resp.setContentType("application/csv");
		resp.addHeader("Content-Disposition", "filename=Confirm.csv;");
		PrintWriter out = resp.getWriter();
		BufferedWriter wr = new BufferedWriter(out);
		
		//Create confirmation report formatter and pass in validated vehicles
		ConfirmationReportFormatter crf = new ConfirmationReportFormatter();
		
		String report = crf.generateReport(uploadData);
		
		wr.write(report);
		wr.flush();