10点睛Spring MVC4.1-全局异常处理

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10.1 全局异常处理

使用 `@ControllerAdvice` 注解来实现全局异常处理;

使用 `@ControllerAdvice` 的属性缩小处理范围

10.2 演示

演示控制器

package com.wisely.web;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

@Controller

public class AdviceController {

    @RequestMapping("/advice")

    public String getSomething(){

        throw new IllegalArgumentException("不好意思,参数错了");

    }

}

@ControllerAdvice 配置

package com.wisely.web;

import org.springframework.web.bind.annotation.ControllerAdvice;

import org.springframework.web.bind.annotation.ExceptionHandler;

import org.springframework.web.context.request.WebRequest;

import org.springframework.web.servlet.ModelAndView;

@ControllerAdvice

public class ExceptionHandlerAdvice {

    @ExceptionHandler(value=Exception.class)

    public ModelAndView exception(Exception exception,WebRequest request){

        ModelAndView modelAndView = new ModelAndView("error");//error页面

        modelAndView.addObject("errorMessage",exception.getMessage());

        return modelAndView;

    }

}

错误展示页面 webapp/WEB-INF/views/error.jsp

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>

<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>Insert title here</title>

</head>

<body>

${errorMessage}

</body>

</html>