springmvc之默认错误页面跳转

在做一个项目的时候，为了界面美观及用户体验，我们往往会设计自己的错误跳转页面，而不是直接展示给用户一堆错误码，为此我们需要配置自己的错误跳转页面。

1、项目结构

　　

2、web.xml

　　

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >
 
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="http://java.sun.com/xml/ns/javaee"
         xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
         version="3.0">
  <display-name>Archetype Created Web Application</display-name>
 
  <servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <!-- 设置dispatchservlet的匹配模式，通过把dispatchservlet映射到/，默认servlet会处理所有的请求，包括静态资源 -->
  <servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
 
  <!-- 字符集过滤器 -->
  <filter>
  <filter-name>encodingFilter</filter-name>
  <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
  <init-param>
    <param-name>encoding</param-name>
    <param-value>UTF-8</param-value>
  </init-param>
  <init-param>
  <param-name>forceEncoding</param-name>
    <param-value>true</param-value>
  </init-param>
  </filter>
  <filter-mapping>
    <filter-name>encodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
 
  <!--错误跳转页面-->
  <error-page>
    <exception-type>java.lang.Throwable</exception-type>
    <location>/WEB-INF/views/error/404.jsp</location>
  </error-page>
  <error-page>
    <error-code>404</error-code>
    <location>/WEB-INF/views/error/404.jsp</location>
  </error-page>
  <error-page>
    <error-code>500</error-code>
    <location>/WEB-INF/views/error/500.jsp</location>
  </error-page>
</web-app>

注：其实只是在原有的springmvc配置的基础上增加<error-page>标签项即可。

3、dispatcher-servlet.xml

　　

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:p="http://www.springframework.org/schema/p"
       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"
       default-lazy-init="true">
 
    <!-- 通过mvc:resources设置静态资源，这样servlet就会处理这些静态资源，而不通过控制器 -->
    <!-- 设置不过滤内容，比如:css,jquery,img 等资源文件 -->
    <mvc:resources location="/*.html" mapping="/**.html" />
    <mvc:resources location="/css/*" mapping="/css/**" />
    <mvc:resources location="/js/*" mapping="/js/**" />
    <mvc:resources location="/images/*" mapping="/images/**" />
 
    <!-- 添加注解驱动 -->
    <mvc:annotation-driven />
    <!-- 默认扫描的包路径 -->
    <context:component-scan base-package="com.*" />
 
    <!-- mvc:view-controller可以在不需要Controller处理request的情况，转向到设置的View -->
    <!-- 像下面这样设置，如果请求为/，则不通过controller，而直接解析为/index.jsp -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
        <property name="viewClass"
                  value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/views/" />
        <property name="suffix" value=".jsp" />
    </bean>
 
    <!--  日志自定义注解拦截器 -->
    <mvc:interceptors>
        <mvc:interceptor>
            <mvc:mapping path="/**"/>
            <bean class="com.log.SystemLogAspect"></bean>
        </mvc:interceptor>
    </mvc:interceptors>
 
</beans>

4、TestController.java

package com.controller;
 
import com.log.Log;
import com.remote.RemoteDemo;
import net.sf.json.JSONObject;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
 
/**
 * Created by sunjf on 2016/6/26.
 */
@Controller
public class TestController {
 
    @Log(desc = "log测试")
    @RequestMapping(value = "test1")
    public String test1(){
        JSONObject jsonObject = new JSONObject();
        jsonObject.put("username", "sun");
        jsonObject.put("password", "123");
       // String result = RemoteDemo.remoteJsonRequest("http://localhost:8080/test2?username=sun&password=123", 5000, jsonObject);
        //System.out.println(result);
        return "error/success1";
    }
 
}

注：该方法跳转页面为success1.jsp，从项目结构中可以看出，我们的项目中是没有这个页面的

5、index.jsp　

<html>
<body>
<h2>Hello World!</h2>
<form action="test1" method="post" id="form1">
    <input type="submit" name="submit" value="button">
</form>
</body>
</html>

6、404.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>404</title>
</head>
<body>
    <h1 align="center" style="margin-top:100px;font-size: 200px">404</h1>
    <h3 align="center">未能找到您访问的资源。</h3>
</body>
</html>

7、运行结果

　　访问链接

　　

　　访问结果