统一异常处理类GlobalExceptionHandler里增加参数不合法异常处理后不起作用

统一异常处理类GlobalExceptionHandler里增加参数不合法异常处理后不起作用，明确的错误信息还只是显示在控制台，通过postman返回的错误信息还是“系统异常”

package com.example.springbootprj0322.exception;

import com.example.springbootprj0322.common.ApiRestResponse;
import com.example.springbootprj0322.filter.WebLogAspect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.validation.BindingResult;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.ArrayList;
import java.util.List;

/**
 * @ClassName GlobalExceptionHandler
 * @description: 用来统一处理异常，异常分为两类：系统异常和业务异常
 * @author: 自己名字
 * @create: 2023-03-31 15:46
 **/
@ControllerAdvice//@ControllerAdvice注解的作用：用于拦截异常
public class GlobalExceptionHandler {

    private final Logger log = LoggerFactory.getLogger(GlobalExceptionHandler.class);

    /*处理系统异常*/
    @ExceptionHandler(Exception.class)
    @ResponseBody
    public ApiRestResponse handlerException(Exception e){
        log.error("Default Exception:",e);
        return ApiRestResponse.error(ExceptionEnum.SYSTEM_ERROR);
    }

    /*处理业务异常*/
    @ExceptionHandler(MallException.class)
    @ResponseBody
    public ApiRestResponse handlerMallException(MallException e){
        log.error("MallException:",e);
        return ApiRestResponse.error(e.getCode(),e.getMessage());
    }

    @ExceptionHandler(MethodArgumentNotValidException.class)
    @ResponseBody
    public ApiRestResponse handleMethodArgumentNotValidException(MethodArgumentNotValidException e){
        log.error("MethodArgumentNotValidException:",e);
        return handleBindingResult(e.getBindingResult());
    }

    public ApiRestResponse handleBindingResult(BindingResult result){
        //把异常处理为对外暴露的提示
        List<String> list=new ArrayList<>();
        if (result.hasErrors()) {
            List<ObjectError> allErrors=result.getAllErrors();
            for (ObjectError objectError:allErrors) {
                System.out.println("111");
                String message=objectError.getDefaultMessage();
                list.add(message);
            }
        }
        if (list.size()==0) {
            return ApiRestResponse.error(ExceptionEnum.REQUEST_PARAM_ERROR);
        }
        System.out.println("222");
        return ApiRestResponse.error(ExceptionEnum.REQUEST_PARAM_ERROR.getCode(),list.toString());

    }

}