//定義exceptionhandler解決未被controller層接收的Exception
@ExceptionHandler(Exception.class)
@ResponseStatus(HttpStatus.OK)
public?Object?handlerException(HttpServletRequest?request,Exception?ex){
????CommonReturnType?type?=new?CommonReturnType();
????type.setStatus("fail");
????type.setData(ex);
????return?type;
}

@RequestMapping(value?=?"/get",method?=?RequestMethod.GET)
@ResponseBody
public?CommonReturnType?getUser(@RequestParam(name="id")?int?id)throws?BusinessException{
????UserModel?userModel?=?userService.getUserById(id);
????if?(userModel==null){
????????throw?new?BusinessException(EmBusinessError.USER_NOT_EXIST);
????}
????UserVO?userVO?=?UserTrans.transferFromModel(userModel);

????//返回通用對象
????return?CommonReturnType.create(userVO);
}