集群环境下spring+session+redis，session共享问题

spring+session+redis做session共享的时候，最让人头痛的是jar包冲突的问题:

下面我介绍一种jar包的万能组合：无论是使用redis做数据缓存，还是session共享一下jar包组合都可以用:

<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
<version>1.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>redis.clients</groupId>
<artifactId>jedis</artifactId>
<version>2.8.1</version>
</dependency>

<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-pool2 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-pool2</artifactId>
<version>2.4.2</version>
</dependency>

下面就是配置文件的问题:

spring-redis.xml

<!-- spring集成redis -->
<bean id="config" class="redis.clients.jedis.JedisPoolConfig">
<property name="maxIdle" value="${redis.maxIdle}" />
<property name="maxTotal" value="${redis.maxActive}" />
<property name="maxWaitMillis" value="${redis.maxWait}" />
<property name="testOnBorrow" value="${redis.testOnBorrow}" />
</bean>

<!-- Spring-redis连接池管理工厂 -->
<bean id="connectionFactory"
class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory">
<property name="hostName" value="${redis.host}" />
<property name="port" value="${redis.port}" />
<property name="password" value="${redis.pass}" />
<property name="timeout" value="${redis.timeout}" />
<property name="poolConfig" ref="config" />
</bean>

<bean id="redisUtil" class="com.chinaedu.back.util.RedisUtil">
<property name="jedisConnectionFactory" ref="connectionFactory" />
</bean>

<bean id="redisCacheTransfer" class="com.chinaedu.back.util.RedisCacheTransfer">
<property name="connectionFactory" ref="connectionFactory" />
</bean>

<!-- spring集成session的配置 -->
<bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">
<property name="connectionFactory" ref="connectionFactory" />
</bean>

<!-- 使用spring-session把http session放到redis里 -->
<bean id="redisHttpSessionConfiguration"
class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration">
<property name="maxInactiveIntervalInSeconds" value="600" />
</bean>

web.xml中配置:

<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>

controller中部分的代码:

session.setAttribute("user", JSON.toJSONString(user1));//redis中是以key-value形式保存的，并且key和value都是字符串，所以用fastjson先将对象转成字符串，就可以了

做到这里就OK了