springmvc中异常配置的两种方式，一种使用注解配置，一种使用控制器配置

  <!--配置异常处理器-->
    <bean class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
        <property name="exceptionMappings">
            <props>
                <prop key="java.lang.ArithmeticException">error</prop>
            </props>
        </property>
        <!--设置共享在请求域中的异常信息的属性名-->
        <property name="exceptionAttribute" value="ex"></property>
    </bean>

package com.hh.controller;

import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;

/**
 * @author hh
 * @version 1.0
 * @DATE 2023-09-16 11:33:32
 */
@ControllerAdvice
public class ExceptionController {

    @ExceptionHandler(ArithmeticException.class)
    public String handleException(Throwable ex, Model model){
        model.addAttribute("ex",ex);
        return "error";
    }
}