SpringMVC参数使用切面统一校验

深藏阁楼爱情的钟 2024-02-19 14:33 57阅读 0赞

/**
     * 参数校验统一处理
     */
    @Log4j
    @Aspect
    @Component
    public class ParamValidAspect {
        
    
        /**
         * 校验错误处理
         * @param joinPoint
         * @param bindingResult
         * @return
         * @throws Throwable
         */
         // 切入点表达式，指向要执行校验的方法
        @Around("execution(* com.**.controller.*.*(..)) && args(..,bindingResult)")
        public Object validateParam(ProceedingJoinPoint joinPoint, BindingResult bindingResult) throws Throwable {
        
            Object obj = null;
            if (bindingResult.hasErrors()) {
        
                // 有校验错误
                obj = getErrors(bindingResult);
            } else {
        
                // 没有错误方法继续执行
                obj = joinPoint.proceed();
            }
            return obj;
        }
    
    
        /**
         * 解析校验错误
         * @param bindingResult
         * @return
         */
        public ResponseEntity getErrors(BindingResult bindingResult) {
        
            List<String> errors = new ArrayList<>();
            List<ObjectError> allErrors = bindingResult.getAllErrors();
            allErrors.forEach(x -> {
        
                FieldError fieldError = (FieldError) x;
                String msg = x.getDefaultMessage();
                errors.add(fieldError.getField() + msg);
            });
            // 自己封装返回错误的格式
            Result<Object> responseData = new Result<>(ResultEnum.EXCEPTION,"校验错误", errors);
            ResponseEntity responseEntity = new ResponseEntity<Result>(responseData, HttpStatus.OK);
            return responseEntity;
        }
    
    }