SpringMVC实现Session共享

「爱情、让人受尽委屈。」 2023-06-07 10:44 22阅读 0赞

# SpringMVC实现Session共享 #

## 1.`pom.xml`添加项目依赖 ##

注意这个两个项目的版本号不对会触发各种彩蛋，调了好久才调出个没问题的。

<dependency>
        <groupId>redis.clients</groupId>
        <artifactId>jedis</artifactId>
        <version>2.6.2</version>
    </dependency>
    <dependency>
        <groupId>org.springframework.session</groupId>
        <artifactId>spring-session-data-redis</artifactId>
        <version>1.3.5.RELEASE</version>
    </dependency>

## 2.`web.xml`添加拦截器 ##

<filter>
        <filter-name>springSessionRepositoryFilter</filter-name>
        <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
    </filter>
    <filter-mapping>
        <filter-name>springSessionRepositoryFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-session-redis.xml</param-value>
    </context-param>

## 3.添加`spring-session-redis.xml`配置文件 ##

<?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" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    
        <context:property-placeholder location="classpath:conf/redis.properties"/>
        <context:annotation-config />
    
        <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
            <property name="hostName" value="${redis.host}"/>
            <property name="port" value="${redis.port}"/>
            <property name="password" value="${redis.password}"/>
        </bean>
    
        <bean id="redisTemplate" class="org.springframework.data.redis.core.StringRedisTemplate">
            <property name="connectionFactory" ref="jedisConnectionFactory" />
        </bean>
    
        <bean id="redisHttpSessionConfiguration" class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration"/>
    
    </beans>

还有`conf/redis.properties`

redis.host=localhost
    redis.port=6379
    redis.password=123456

演示代码:[ https://github.com/zhanjixun/spring-session-redis-demo ][https_github.com_zhanjixun_spring-session-redis-demo]

## 4.测试 ##

项目中添加了jetty插件，这里启动两个jetty用于模拟分布式部署，一个jetty以8081端口启动，另一个以8082端口启动。先打开[http://localhost:8081/home][http_localhost_8081_home] 和 [http://localhost:8082/home][http_localhost_8081_home] ，都被重定向login页面了，先在8081登录跳回home页面，打开http://localhost:8082/home 能够正常显示用户信息，测试通过。

[https_github.com_zhanjixun_spring-session-redis-demo]: https://github.com/zhanjixun/spring-session-redis-demo
[http_localhost_8081_home]: http://localhost:8081/home