Tomcat7+Redis存儲Session

詳情見官網: https://github.com/jcoleman/tomcat-redis-session-manager

前提:你已經部署了Redis,還沒有學會的,能夠移步這裏:http://blog.csdn.net/caiwenfeng_for_23/article/details/45511007 java

個人案例下載:http://download.csdn.net/detail/caiwenfeng_for_23/8689847 git

其實很簡單,就幾個步驟:
1.配置Tomcat的conf目錄下的context.xml文件: github

1> 單點Reids配置

 

<!-- 
    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"/>

 

2> Sentinel集羣配置: redis

<!-- 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.測試 tomcat

1>
存儲Session: session

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        System.out.println("hello");
           //取得Session對象
        HttpSession session=request.getSession(); 
        //設置Session屬性
        for(int i=0;i<100000;i++){
            session.setAttribute("name"+i, "Magci_"+i); 
        }
    }

2>重啓Tomcat:假如Session保存在tomcat下,重啓後Session不存在;若是保存在Redis下,Tomcat重啓對Session無影響 測試

3>取出Session: this

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        System.out.println("hello");
           //取得Session對象
        HttpSession session=request.getSession(); 
        //取出Session屬性
        for(int i=0;i<100000;i++){
            System.out.println(session.getAttribute("name"+i));
        }
    }

 

注意事項:從Tomcat6開始默認開啓了Session持久化設置,測試時能夠關閉本地Session持久化,其實也很簡單,在Tomcat的conf目錄下的context.xml文件中,取消註釋下面那段配置便可: spa

<!-- Uncomment this to disable session persistence across Tomcat restarts -->
    <!--
    <Manager pathname="" />
    -->

 

能夠嘗試運行上面的demo案例! .net

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