I am trying to create in a Servlet a Shocket client.
The client makes a request, I must itself connect to a machine, to a concrete port, to pass a String to him and to gather the String that she gives me like answer.
I always obtain an error:
       Software caused connection abort: recv failed
It is had to create a thread by Socket obligatorily?
This my code:
      DataOutputStream os = null;
      DataInputStream is = null;
      try{
         if(clientSocket == null) {
            clientSocket = new Socket(host, port);
         }
         is = new DataInputStream(clientSocket.getInputStream());
         os = new DataOutputStream(clientSocket.getOutputStream());
         os.writeBytes(cadena);
         String response = is.readLine();
      }

      catch(Exception e) {
           System.out.println("ERROR: "+e.getMessage()+"--> "+e);
      }