springmvc+springsession实现session共享

pom.xml文件

<?xml version="1.0" encoding="UTF-8"?><web-app version="3.0" xmlns="http://java.sun.com/xml/ns/javaee"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">    <servlet>        <servlet-name>spring</servlet-name>        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>        <init-param>            <param-name>contextConfigLocation</param-name>            <param-value>classpath:spring/spring-mvc.xml,classpath:spring/spring-session.xml</param-value>        </init-param>        <load-on-startup>1</load-on-startup>    </servlet>    <servlet-mapping>        <servlet-name>spring</servlet-name>        <url-pattern>/</url-pattern>    </servlet-mapping>    <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></web-app>

spring-mvc.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: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.xsd        http://www.springframework.org/schema/context        http://www.springframework.org/schema/context/spring-context.xsd        http://www.springframework.org/schema/tx        http://www.springframework.org/schema/tx/spring-tx.xsd          http://www.springframework.org/schema/mvc       http://www.springframework.org/schema/mvc/spring-mvc.xsd">    <!-- 配置扫描的包 -->    <context:component-scan base-package="com.coodean.demo.session.web" />    <!-- 注册HandlerMapper、HandlerAdapter两个映射类 -->    <mvc:annotation-driven />    <!-- 访问静态资源 -->    <mvc:default-servlet-handler />    <!-- 视图解析器 -->    <bean        class="org.springframework.web.servlet.view.InternalResourceViewResolver">        <property name="prefix" value="/WEB-INF/view/"></property>        <property name="suffix" value=".jsp"></property>    </bean></beans>

spring-session.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:context="http://www.springframework.org/schema/context"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">    <context:property-placeholder location="classpath:redis.properties" />      <!-- 对象池配置 -->    <bean id="jedisPoolConfig" class="redis.clients.jedis.JedisPoolConfig">        <property name="maxTotal" value="${spring.redis.pool.maxTotal}" /> <!-- 控制一个pool可分配多少个jedis实例 -->        <property name="maxIdle" value="${spring.redis.pool.maxIdle}" />   <!-- 控制一个pool最多有多少个状态为idle(空闲)的jedis实例 -->        <property name="minIdle" value="${spring.redis.pool.minIdle}" />        <property name="maxWaitMillis" value="${spring.redis.pool.maxWaitMillis}" />  <!-- 表示当borrow一个jedis实例时，最大的等待时间，如果超过等待时间，则直接抛出JedisConnectionException --><!--         <property name="testOnBorrow" value="${redis.pool.testOnBorrow}" /> 在borrow一个jedis实例时，是否提前进行validate操作；如果为true，则得到的jedis实例均是可用的        <property name="testOnReturn" value="${redis.pool.testOnReturn}" />        <property name="testWhileIdle" value="${redis.pool.testWhileIdle}" /> -->    </bean>    <!-- 工厂实现 -->    <bean id="jedisConnectionFactory"        class="org.springframework.data.redis.connection.jedis.JedisConnectionFactory"        destroy-method="destroy">        <property name="hostName" value="${spring.redis.host}" />        <property name="port" value="${spring.redis.port}" />        <property name="password" value="${spring.redis.password}" />        <property name="timeout" value="${spring.redis.timeout}" />        <property name="database" value="${spring.redis.database}" />        <!-- <property name="usePool" value="${redis.usePool}" /> -->        <property name="poolConfig" ref="jedisPoolConfig" />    </bean>    <!-- 模板类 -->    <bean id="redisTemplate" class="org.springframework.data.redis.core.RedisTemplate">        <property name="connectionFactory" ref="jedisConnectionFactory" />    </bean>    <!-- 使用spring-session把http session放到redis里 -->    <bean id="redisHttpSessionConfiguration"        class="org.springframework.session.data.redis.config.annotation.web.http.RedisHttpSessionConfiguration">        <property name="maxInactiveIntervalInSeconds" value="${session.maxInactiveIntervalInSeconds}" />    </bean></beans>

redis.properties

# REDIS (RedisProperties)# Redis数据库索引（默认为0）spring.redis.database=0# Redis服务器地址spring.redis.host=127.0.0.1  # Redis服务器连接端口spring.redis.port=6379# Redis服务器连接密码（默认为空）spring.redis.password=# 连接池最大连接数（使用负值表示没有限制）spring.redis.pool.maxTotal=8# 连接池最大阻塞等待时间（使用负值表示没有限制）spring.redis.pool.maxWaitMillis=-1# 连接池中的最大空闲连接spring.redis.pool.maxIdle=8# 连接池中的最小空闲连接spring.redis.pool.minIdle=0 # 连接超时时间（毫秒）spring.redis.timeout=0# 过期时间100分钟session.maxInactiveIntervalInSeconds=60 

控制器中使用可以和单点一样使用session

package com.coodean.demo.session.web;import javax.servlet.http.HttpSession;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;@Controller@RequestMapping("")public class IndexController {    @RequestMapping("login/{id}")    @ResponseBody    public String login(@PathVariable Long id, HttpSession httpsession){        httpsession.setAttribute("user", id);        return "login";    }    @RequestMapping("check")    @ResponseBody    public String check(HttpSession httpsession){        Long userId = (Long)httpsession.getAttribute("user");        if(userId == null)            return "null";        else return userId.toString();    }}