~~~ package com.nobb.controller.advice; import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler; //给所有控制器注册的通知 @ControllerAdvice public class MyExceptionAdvice { //简单理解，出现异常 会执行该方法 @ExceptionHandler(Exception.class) public String test(){ System.out.println("执行异常处理代码"); //跳转到error界面 return "/error"; } } ~~~