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