springmvc之默認錯誤頁面跳轉

在做一個項目的時候，為了界面美觀及用戶體驗，我們往往會設計自己的錯誤跳轉頁面，而不是直接展示給用戶一堆錯誤碼，為此我們需要配置自己的錯誤跳轉頁面。

1、項目結構

　　

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>
  <!-- 設置dispatchservlet的匹配模式，通過把dispatchservlet映射到/，默認servlet會處理所有的請求，包括靜態資源 -->
  <servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <!-- 字符集過濾器 -->
  <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>
  
  <!--錯誤跳轉頁面-->
  <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：其實只是在原有的springmvc配置的基礎上增加<error-page>標簽項即可。

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">

    <!-- 通過mvc:resources設置靜態資源，這樣servlet就會處理這些靜態資源，而不通過控制器 -->
    <!-- 設置不過濾內容，比如:css,jquery,img 等資源文件 -->
    <mvc:resources location="/*.html" mapping="/**.html" />
    <mvc:resources location="/css/*" mapping="/css/**" />
    <mvc:resources location="/js/*" mapping="/js/**" />
    <mvc:resources location="/images/*" mapping="/images/**" />

    <!-- 添加注解驅動 -->
    <mvc:annotation-driven />
    <!-- 默認掃描的包路徑 -->
    <context:component-scan base-package="com.*" />

    <!-- mvc:view-controller可以在不需要Controller處理request的情況，轉向到設置的View -->
    <!-- 像下面這樣設置，如果請求為/，則不通過controller，而直接解析為/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>

    <!--  日志自定義注解攔截器 -->
    <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測試")
    @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：該方法跳轉頁面為success1.jsp，從項目結構中可以看出，我們的項目中是沒有這個頁面的

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">未能找到您訪問的資源。</h3>
</body>
</html>

7、運行結果

　　訪問鏈接

　　

　　訪問結果