title: Getting response from servlet. ExtJs
body: <p>I have a extJs form with fileupload and servlet. After uploading file i want to get response from servlet. </p>
  
  <p>i do this <code>System.out.println("{success:true, error:'error'}");</code>
  But in firebug in POST i dont see anything. This code works in case wiht jsp but not servlet. So how to send parametrs from servlet?</p>