Question

I have an upload program which uploads file and saves it to the specified host on which this application is deployed.

I want to save this files to other host.
Can someone guide me what changes I must do to my dispatcher servlet for the same or any other alternate?

Answer 1

I Would advice to open a new connection with the other host within the Servlet and upload the file using the connection.

 int contentChar = null;
 FileInputStream inputStream = new FileInputStream(getfileRootDir()+ "/"+fileId));

 URL oracle = new URL("other server url");
 HttpURLConnection connection = (HttpURLConnection)url.openConnection();
 OutputStream outPutStream = connection.getOutputStrea()
 while ((contentChar = inputStream.read()) != -1) {
      outPutStream.write(contentLine );
 }
 inputStream .close();
 outPutStream.close(); 
 connection.close();

If you want to use BufferredReader/Writer from efficiency perspective, you may want to write as below:

   String contentLine = null;
   BufferedReader reader = new BufferedReader(
                                    new FileReader(getfileRootDir()+ "/"+fileId));

   URL oracle = new URL("other server url");
   HttpURLConnection connection = (HttpURLConnection)url.openConnection();
   OutputStream outPutStream = connection.getOutputStrea()
   Writer streamWriter = new BufferedWriter(new OutputStreamWriter(outPutStream ));
   while ((contentLine = reader.readLine()) != null) {
        streamWriter.write(contentLine );
   }
   reader.close();       
   streamWriter.close();
   outPutStream .close(); 
   connection.close();