/** @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String action = request.getParameter("action"); JSONArray result = new JSONArray(); switch (action) { case "getComments": result = getComments(request.getParameter("itemNumber")); break; case "addComment": addComment(request.getParameter("itemNumber"), request.getParameter("comment")); break; } response.setContentType("text/html; charset=UTF-8"); response.setCharacterEncoding("UTF-8"); response.getOutputStream().print(result.serialize()); return; }