Re: Servlet and text/plain

["Bruce Jin" <JIN007M@xxxxxxxxxxx>]

 You can add character encoding to fool the browser. For example the
following would force browser to display save screen instead of displaying
the pdf using Acrobat:

   HttpServletResponse.setContentType("application/pdf;charset=UTF-8")

(This was not tested on all browsers.)

Thanks.



----- Original Message -----
From: "Art Smet" <smet@xxxxxxxxxx>
To: "Java Programming on and around the iSeries / AS400"
<java400-l@xxxxxxxxxxxx>
Sent: Wednesday, March 19, 2003 5:53 PM
Subject: Re: Servlet and text/plain


>
>
>
>
> I know the following will force a Save dialog at the browser, I think it
is
> the resp.setContentType( ) that really does the trick.  You can use the
> following code as a basis, and extract what you need to pull off the Save
> dialog for your code.
>
> import java.io.*;
> import java.net.*;
> import java.util.*;
> import javax.servlet.*;
> import javax.servlet.http.*;
> import com.oroinc.text.perl.*;
>
> public class BigDownloadTest extends HttpServlet {
>       public void doGet( HttpServletRequest req, HttpServletResponse
resp )
> throws ServletException, IOException {
>
>             long bytes = Long.parseLong(req.getParameter("bytes"));
>                   File tempFile = File.createTempFile("download", ".zip");
>
>
>             //no filename specified, so lets fashion something as long as
> the bytes they specified.
>             java.io.FileOutputStream fos = new
> java.io.FileOutputStream(tempFile);
>             byte [] array = {'9','8','7','6','5','4','3','2'};
>             long l;
>             for(l = 0; l < bytes-8; l+=8){
>                   fos.write(array);
>             }
>             fos.write(array,0,(int)(bytes-l));
>
>             String type =
> getServletContext().getMimeType(tempFile.getAbsolutePath());
>             if (type != null)
>             {
>                   resp.setContentType(type);
>             }
>
>             resp.setDateHeader("last-modified", tempFile.lastModified());
>             resp.setContentLength(new Long(tempFile.length()).intValue());
>
>             FileInputStream in = new FileInputStream(tempFile);
>             try
>             {
>                   ServletOutputStream out = resp.getOutputStream();
>                   byte[] buf = new byte[4096];
>                   int numRead = in.read(buf);
>                   while (numRead != -1)
>                   {
>                         out.write(buf, 0, numRead);
>                         numRead = in.read(buf);
>                   }
>             } finally {
>                   in.close();
>             }
>       }
> }
>
>
>
>
>
> |---------+------------------------------>
> |         |           "Mark Phippard"    |
> |         |           <MarkP@xxxxxxxxxxxx|
> |         |           com>               |
> |         |           Sent by:           |
> |         |           java400-l-bounces@x|
> |         |           idrange.com        |
> |         |                              |
> |         |                              |
> |         |           03/19/2003 07:30 PM|
> |         |           Please respond to  |
> |         |           Java Programming on|
> |         |           and around the     |
> |         |           iSeries / AS400    |
> |         |                              |
> |---------+------------------------------>
>
>---------------------------------------------------------------------------
----------------------------------|
>   |
|
>   |       To:       Java Programming on and around the iSeries / AS400
<java400-l@xxxxxxxxxxxx>                 |
>   |       cc:
|
>   |       Subject:  Re: Servlet and text/plain
|
>   |
|
>
>---------------------------------------------------------------------------
----------------------------------|
>
>
>
>
>
> Larry,
>
> If you find a way that is 100% I'd love to know.  We cannot find a way
even
> when sending something like a PDF.  We have searched a lot of web forums
to
> know avail.  The best you can do is give the browser some "hints" in the
> headers.  There is one where you give it the filename you want to use, I
> think another where you say it is an attachment, and of course there is
the
> mime type.
>
> In general, we have found that if IE feels it can handle the type, it will
> regardless of what you say.  Netscape/Mozilla will generally do what you
> want.
>
> Good luck.
>
> Mark
>
>
>
>
>       To:   java400-l@xxxxxxxxxxxx
>       cc:
>       bcc:
>       Subject:    Servlet and text/plain
> "Larry" <larryhytail@xxxxxxxxx>
> Sent by: java400-l-bounces@xxxxxxxxxxxx
> 03/19/2003 11:26 AM
> Please respond to Java Programming on and around the iSeries / AS400
> <font size=-1></font>
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>
> Here's what I think should be a simple question, but I could not find the
> answer.
> I have a servlet that generates dynamic content in text/plain format that
> the end user really does not want to display in his/her browser, but
really
> wants to accept it as a download file. If you click on my link to the
> servlet, currently it builds the data and displays it in text in the
> browser.
> Of course the user could right click and do "save file as" to stream it
> directly to a file on his/her hard drive, but that is not elegant. How do
I
> make the servlet automatically bring up the save file dialog?
> Thanks,
> Larry
>
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