public void saveNewUser() { PrintWriter pw = null; try { this.getResponse().setCharacterEncoding("UTF-8"); pw = this.getResponse().getWriter(); String result; User user = new User(); user.setUserName(userName); user = userServices.queryUserByBean(user); if (user != null) { result = "exist"; } else { user = new User(); user.setUserName(userName); user.setPassword(MD5Utils.strToMD5(password)); user.setRealName(realName); user.setCreateTime(DateUtils.getNowTime()); userServices.insertUser(user); result = "success"; } pw.write(result); } catch (Exception e) { e.printStackTrace(); } pw.flush(); pw.close(); }