Qfyilyi

I have a REST API, which need to :
1. Create a few Json files from objects
2. Zip all of them
3. Download to client system - whoever is accessing the URL.

I am able to do step 1 and 2, but on doing step 3, it is downloading to my server, but not to client.
Currently i am trying in my local, Later this code moves to AWS, not sure there also it will download into the server or client local:

Code for step 3:

public void downloadZip(String zipFileName)

{

    File file = new File(zipFileName);

    if(!file.exists()){

        System.out.println("file not found");

    }



    OutputStream out = null;

    try

    {

        out = new FileOutputStream("test_"+zipFileName);

        FileInputStream in = new FileInputStream(file);

        byte buffer = new byte[4096];

        int length;

        while ((length = in.read(buffer)) > 0){

            out.write(buffer, 0, length);

        }

        in.close();

        out.flush();

    }

    catch (IOException e)

    {

        e.printStackTrace();

    }

}

Try this, using content type application/zip.

 if(file.exists()){

        byte arr = FileUtils.readFileToByteArray(file);

        return ResponseEntity.ok().contentLength(arr.length)

                        .header(HttpHeaders.CONTENT_TYPE, "application/zip")

                        .header(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + file.getName())

                        .body(arr);

} else {

        return ResponseEntity.notFound().build();

}