Tomcat7+Redis存储Session

迷南。 2022-06-05 00:59 158阅读 0赞

PS：截止到2015-05-12前是不支持Tomcat8的，详情见官网：[https://github.com/jcoleman/tomcat-redis-session-manager][https_github.com_jcoleman_tomcat-redis-session-manager]

前提：你已经部署了Redis，尚未学会的，可以移步这里：[http://blog.csdn.net/caiwenfeng\_for\_23/article/details/45511007][http_blog.csdn.net_caiwenfeng_for_23_article_details_45511007]

我的案例下载：[http://download.csdn.net/detail/caiwenfeng\_for\_23/8689847][http_download.csdn.net_detail_caiwenfeng_for_23_8689847]

其实很简单，就几个步骤：   
1.配置Tomcat的conf目录下的context.xml文件：

1> 单点Reids配置

<Valve className="com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve" />        
        <Manager className="com.orangefunction.tomcat.redissessions.RedisSessionManager" host="localhost" port="6379" database="0" maxInactiveInterval="60"/>
     
      
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2> Sentinel集群配置：

<Valve className="com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve" />        
        <Manager className="com.orangefunction.tomcat.redissessions.RedisSessionManager" maxInactiveInterval="60" sentinelMaster="mymaster" sentinels="127.0.0.1:26379,127.0.0.1:26380,127.0.0.1:26381,127.0.0.1:26382" />
     
      
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2.添加jar

![这里写图片描述][20150512105559734]

3.测试

1>   
存储Session：

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            System.out.println("hello");
               //取得Session对象
            HttpSession session=request.getSession(); 
            //设置Session属性
            for(int i=0;i<100000;i++){
                session.setAttribute("name"+i, "Magci_"+i); 
            }
        }
     
      
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2>重启Tomcat：假如Session保存在tomcat下，重启后Session不存在；如果保存在Redis下，Tomcat重启对Session无影响

3>取出Session：

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            System.out.println("hello");
               //取得Session对象
            HttpSession session=request.getSession(); 
            //取出Session属性
            for(int i=0;i<100000;i++){
                System.out.println(session.getAttribute("name"+i));
            }
        }
     
      
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注意事项：从Tomcat6开始默认开启了Session持久化设置，测试时可以关闭本地Session持久化，其实也很简单，在Tomcat的conf目录下的context.xml文件中，取消注释下面那段配置即可：

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详见这篇博客：[Session持久化的实例分析][Session]

可以尝试运行上面的demo案例！

[https_github.com_jcoleman_tomcat-redis-session-manager]: https://github.com/jcoleman/tomcat-redis-session-manager
[http_blog.csdn.net_caiwenfeng_for_23_article_details_45511007]: http://blog.csdn.net/caiwenfeng_for_23/article/details/45511007
[http_download.csdn.net_detail_caiwenfeng_for_23_8689847]: http://download.csdn.net/detail/caiwenfeng_for_23/8689847
[20150512105559734]: /images/20220605/39184e906efa4435bc592d1399d1e51a.png
[Session]: http://xiaolongfeixiang.iteye.com/blog/560800