outputStream gives wrong file name

[sameera liyanage]

i am trying to send a jar file to the client.
here is the code for it.but it change the file name and there is no any file type.

public void service(HttpServletRequest req,HttpServletResponse res)throws javax.servlet.ServletException,
	java.io.IOException
	{
		res.setContentType("application/jar");
		OutputStream os = res.getOutputStream();
		
		byte[] bytearray = new byte[1024];
		ServletContext context = getServletContext();
		URL url = context.getResource("/files/test.jar");
		InputStream is = url.openStream();
		int bytesread = 0;
		while( (bytesread = is.read(bytearray) ) != -1 )
		{
		os.write(bytearray, 0, bytesread);
		}
		os.flush();
		is.close();
	}

[Mohamed Inayath]

What error you are getting exactly?

Does the test.jar exist within files folder?

[sameera liyanage]

not actually a error.
it save file named in the name of the servlet class name and without any file types(this file name is copy)

[Ankit Garg]

I don't know of any direct way of doing what you are asking for. Once I needed a similar thing, i.e. I needed a servlet to deliver dynamic excel files. So I mapped the servlet to a path like /excel/*, and then sent request to it with the URL /excel/Accounts.xls and then the servlet used to create the excel and send it to the client and is used to save with the name Accounts.xls...

[Bear Bibeault]

Check out the use of the content-disposition header.