download file using OutputStream from Servlets

[ahmed yehia]

I want to download a file from a web app using a Servlet and then save the file with its original name and extension, currently Im using ServletOutStream to write data to the response.

The file was successfully downloaded but it's got the Servlet name from which it came from.

I think that could be normal to not identify the file or its extension cause the Servlet is just writing bytes to the stream.

here is the code I use in Servlet:

  
        ....
        response.setContentType("application/jar");
        ServletContext ctx = getServletContext();
        InputStream is = ctx.getResourceAsStream("/File.jar");
        int read = 0;
        byte[] bytes = new byte[2000];
        ServletOutputStream os = response.getOutputStream();
        while ((read = is.read(bytes)) != -1) {
        os.write(bytes, 0, read);
        

[Bear Bibeault]

Look up the content-disposition response header.

[ahmed yehia]

Thanks Bear Bibeault, it does what I wanted to do.