public JsonResult VerifyUserName(string field, string value) { AjaxResult result = new AjaxResult(); try { userService = new UserService(); if (!userService.VerifyUserInfo(field, value)) { result.ExceptionInfo = "该用户名已经被注册!"; result.ErrorCode = 103; } } catch (Exception ex) { LogService.Log("VerifyUserName", ex.ToString()); result.ExceptionInfo = "出错了!"; result.ErrorCode = 102; } return Json(result); }