如果英文不错的看,建议直接看官网吧,官网写的挺清楚。下面的内容是转载的一篇文章,自己补充了一些,供大家参考,也欢迎大家一起讨论
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
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
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
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<!-- Jedis save session --> < 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:
<!-- Sentinel 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" />
2.添加jar
3.测试
1>
存储Session:
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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:
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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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<!-- Uncomment this to disable session persistence across Tomcat restarts -->
<!--
<Manager pathname="" />
-->
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可以尝试运行上面的demo案例!
需要注意的是:
web.xml中的配置是有效的,即使是context.xml总配置maxInactiveInterval默认60秒,只要web.xml中的sessionConfig配置30分钟,则session的失效时间还是30分钟。
转自:http://blog.csdn.net/caiwenfeng_for_23/article/details/45666831