Response JSON数据返回

    /**
     * 以JSON格式输出
     * @param response
     */
    protected void responseOutWithJson(HttpServletResponse response,
            Object responseObject) {
        //将实体对象转换为JSON Object转换
        JSONObject responseJSONObject = JSONObject.fromObject(responseObject);
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json; charset=utf-8");
        PrintWriter out = null;
        try {
            out = response.getWriter();
            out.append(responseJSONObject.toString());
            logger.debug("返回是\n");
            logger.debug(responseJSONObject.toString());
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (out != null) {
                out.close();
            }
        }
    }