@RequestMapping("/deleteUser") public void deleteUser(String id, HttpServletRequest request, HttpServletResponse response) { String result = "{\"msg\":\"success\"}"; String error = "{\"msg\":\"error\"}"; try { PrintWriter pw = response.getWriter(); if (userService.deleteUser(id)) { pw.print(result); } else { pw.print(error); } } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } }