//1、自定义异常处理类 2、编写异常处理器 3、配置异常处理器
package com.hope.exception;
/**
* 异常处理类
* @author newcityman
* @date 2019/11/28 - 23:10
*/
public class SysExecepiton extends Exception {
private String message;
@Override
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public SysExecepiton(String message) {
this.message = message;
}
}
package com.hope.exception;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* 异常处理器
*
* @author newcityman
* @date 2019/11/28 - 23:21
*/
public class SysExceptionResolver implements HandlerExceptionResolver {
@Override
public ModelAndView resolveException(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, Object o, Exception ex) {
SysExecepiton e = null;
if (ex instanceof SysExecepiton) {
e = (SysExecepiton) ex;
} else {
e = new SysExecepiton("系统维护中.......");
}
ModelAndView mv = new ModelAndView();
mv.addObject("errorMsg", e.getMessage());
mv.setViewName("error");
return mv;
}
}
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!--指定spring扫描的包-->
<context:component-scan base-package="com.hope"></context:component-scan>
<!--视图解析器-->
<bean id="internalResourceViewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/pages/"/>
<property name="suffix" value=".jsp"/>
</bean>
<!-- 配置文件解析器对象,处理文件上传-->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<property name="maxUploadSize" value="10485760"></property>
</bean>
<!-- 指定前端控制器哪些资源不拦截-->
<!--前端控制器，哪些静态资源不拦截-->
<mvc:resources location="/css/" mapping="/css/**"/>
<mvc:resources location="/images/" mapping="/images/**"/>
<mvc:resources location="/js/" mapping="/js/**"/>
<!--配置异常处理器-->
<bean id="sysExceptionResolver" class="com.hope.exception.SysExceptionResolver"></bean>
<!--开启springmvc框架注解的支持,包含开启处理器映射器和处理器适配器-->
<mvc:annotation-driven />
</beans>
<%@ page contentType="text/html;charset=UTF-8" language="java" isELIgnored="false" %>
<html>
<head>
<title>Title</title>
</head>
<body>
${errorMsg}
</body>
</html>