2-1 Springboot分布式Session处理 存储到Redis

Spring Session

    简化集群中的用户会话管理

    无需绑定容器特定解决方案

支持的存储

    Redis、MongoDB、JDBC、Hazelcast

定制HttpSession

通过定制的HttpServletRequest返回定制的HttpSession

    SessionRepositoryRequestWrapper

    SessionRepositoryFilter

    DelegatingFilterProxy

基于Redis的HttpSession

引入依赖

    spring-session-data-redis

基本配置

    @EnableRedisHttpSession

    提供RedisConnection

    实现AbstractHttpSessionApplicationInitializer

        配置DelegatingFilterProxy

application.properties

    spring.session.store-type=redis

    spring.session.timeout=

        server.servlet.session.timeout=

    spring.session.redis.flush-mode=on-save

    spring.session.redis.namespace=spring:session

Pom

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session-core</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.session</groupId>
            <artifactId>spring-session-data-redis</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>

Controller

    @RequestMapping("/session")
    public String printSession(HttpSession session,String name){
        String str = (String)session.getAttribute("name");
        if(str ==null){
            session.setAttribute("name",name);
            str=name;
        }
        return "name is : "+str;
    }

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