一、在pom.xml添加springSession
<!--springSession-->
<dependency>
<groupId>org.springframework.session</groupId>
<artifactId>spring-session-data-redis</artifactId>
<version>1.2.0.RELEASE</version>
</dependency>
二、确保spring是4.3.10.RELEASE版本以上
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.3.10.RELEASE</version> </dependency>
三、applicationContext.xml文件中添加四个bean类
<bean id="redisHttpSessionConfiguration" class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration"> <property name="maxInactiveIntervalInSeconds" value="180"></property> </bean> <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig"> </bean> <bean id="jedisConnectionFactory" class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"> <property name="hostName" value="127.0.0.1"></property> <property name="port" value="6379"></property> <property name="poolConfig" ref="jedisPoolConfig"></property> </bean> <bean id="defaultCookieSerializer" class="org.springframework.session.web.http.DefaultCookieSerializer"> <property name="cookieName" value="springSession"></property> <property name="cookiePath" value="/"></property> <property name="cookieMaxAge" value="3600"/> <property name="useHttpOnlyCookie" value="true"/> <property name="domainName" value=".qs.com"/> </bean>
这样就可以实现session共享，Nginx下的tomcat集群也是这样的
原理就是：通过SpringSession对servlet带的session进行封装，接管session
