10点睛Spring MVC4.1-全局异常处理

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>

访问http://localhost:8080/testSpringMVC/advice
页面显示不好意思,参数错了

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10点睛Spring MVC4.1-全局异常处理

10.1 全局异常处理

10.2 演示

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