URLRewrite地址重定向的实现

URLRewrite就是我们通常说的地址重写，用户得到的全部都是经过处理后的URL地址。其优点有：

（1）提高安全性，可以有效的避免一些参数名、ID等完全暴露在用户面前，如果用户随便乱输的话，不符合规则的话直接会返回个404或错误页面，这比直接返回500或一大堆服务器错误信息要好的多。

（2）美化URL，去除了那些比如*.do之类的后缀名、长长的参数串等，可以自己组织精简更能反映访问模块内容的URL。

（3）更有利于搜索引擎的收入，通过对URL的一些优化，可以使搜索引擎更好的识别与收录网站的信息。

         实现过程：

1 参考http://blog.csdn.net/haishu_zheng/article/details/51490299，用第二种方法创建一个名为urlrewrite_demo的Maven工程。

2 文件目录结构如下图所示

3 在pom.xml中添加四个jar包：

spring-webmvc

spring-context-support

urlrewritefilter

freemarker

添加完之后的完整内容为

 

<project xmlns="http://maven.apache.org/POM/4.0.0"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>urlrewrite_demo</groupId>
    <artifactId>urlrewrite_demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>war</packaging>
    <name>urlrewrite_demo</name>
    <description />
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>3.2.9.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>3.2.9.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.tuckey</groupId>
            <artifactId>urlrewritefilter</artifactId>
            <version>4.0.3</version>
        </dependency>
        <dependency>
            <groupId>org.freemarker</groupId>
            <artifactId>freemarker</artifactId>
            <version>2.3.23</version>
        </dependency>
        <dependency>
            <groupId>javax</groupId>
            <artifactId>javaee-api</artifactId>
            <version>7.0</version>
            <scope>provided</scope>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <source>1.7</source>
                    <target>1.7</target>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                    <version>3.1</version>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

4 web.xml中的完整内容为

 

<?xml version="1.0"encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://xmlns.jcp.org/xml/ns/javaee"
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaeehttp://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
    id="WebApp_ID" version="3.1">
    <display-name>urlrewrite_demo</display-name>

    <filter>
        <filter-name>UrlRewriteFilter</filter-name>
        <filter-class>org.tuckey.web.filters.urlrewrite.UrlRewriteFilter</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>UrlRewriteFilter</filter-name>
        <url-pattern>/*</url-pattern>
        <dispatcher>REQUEST</dispatcher>
        <dispatcher>FORWARD</dispatcher>
    </filter-mapping>

    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>/WEB-INF/classes/config/spring/applicationContext-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>/service/*</url-pattern>
    </servlet-mapping>
</web-app>

5 /src/main/reources/config/spring/applicationContext-mvc.xml中的完整内容为

<?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:aop="http://www.springframework.org/schema/aop"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
          http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
          http://www.springframework.org/schema/context
          http://www.springframework.org/schema/context/spring-context-3.2.xsd
          http://www.springframework.org/schema/aop
          http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
          http://www.springframework.org/schema/tx
          http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
          http://www.springframework.org/schema/mvc
           http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd">

    <!-- 有 @Controller注解的表现层控制器组件 -->
    <context:component-scan base-package="com.zheng.controller" />

    <!-- 配置freeMarker模板加载地址 -->
    <bean id="freemarkerConfig" class="org.springframework.web.servlet.view.freemarker.FreeMarkerConfigurer">
        <!-- 视图解析器在/WEB-INF/views/路径下扫描视图文件 -->
        <property name="templateLoaderPath" value="/WEB-INF/views/" />
        <property name="freemarkerSettings" ref="freemarkerConfiguration" />
    </bean>

    <!-- 配置Freemarker属性文件路径 -->
    <bean id="freemarkerConfiguration" class="org.springframework.beans.factory.config.PropertiesFactoryBean">
        <property name="location" value="classpath:config/properties/freemarker.properties"/>
    </bean>

    <!-- 配置freeMarker视图解析器 -->
    <bean id="freemakerViewResolver" class="org.springframework.web.servlet.view.freemarker.FreeMarkerViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.freemarker.FreeMarkerView"/>
        <property name="suffix" value=".ftl" />
        <property name="contentType" value="text/html; charset=UTF-8" />
    </bean>

</beans>

6 /src/main/resources/config/properties/freemarker.properties中的完整内容为

 

tag_syntax=auto_detect
classic_compatible=true
whitespace_stripping=true
template_update_delay=2
default_encoding=UTF-8
output_encoding=UTF-8
url_escaping_charset=UTF-8
locale=zh_CN
date_format=yyyy-MM-dd
time_format=HH:mm:ss
datetime_format=yyyy-MM-dd HH:mm:ss

7 /src/main/Java/com/zheng/controller/TestController.java中的完整代码为

 

package com.zheng.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/login")
public class TestController {
    @RequestMapping("/toLoginIndex")
    public String toLoginIndex(){
        return "/test";
    }
}

8 /src/main/webapp/WEB-INF/views/test.ftl中的完整代码为：

 

<html>
<head>
  <title>Insert title here</title>
</head>
<body>
  Hello, World!
</body>
</html>

9 /src/main/webapp/WEB-INF/urlrewrite.xml中的完整代码为

 

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE urlrewrite PUBLIC "-//tuckey.org//DTD UrlRewrite 4.0//EN"
"http://www.tuckey.org/res/dtds/urlrewrite4.0.dtd">
<urlrewrite decode-using="UTF-8">
    <rule>
        <from>/$</from>
        <to>/service/login/toLogin</to>
    </rule>
</urlrewrite>

注意：这里的<from>和<to>决定了

http://localhost:8080/urlrewrite_demo 映射为

http://localhos:8080/urlrewrite_demo/service/login/toLoginIndex

假如<from>/$</from>改为<from>/abc</from>，则

http://localhost:8080/urlrewrite_demo/abc 映射为

http://localhos:8080/urlrewrite_demo/service/login/toLoginIndex

10 将urlrewrite_demo添加进Tomcat7中并运行

在浏览器中输入http://localhost:8080/urlrewrite_demo

显示结果为

 

在浏览器中输入http://localhost:8080/urlrewrite_demo/service/login/toLoginIndex

显示结果为

11 源码下载地址

CSDN：http://download.csdn.net/detail/haishu_zheng/9540381

Github：https://github.com/zhenghaishu/urlrewrite_demo