tomcat的安装与配置

tomcat的安装

官网下载

Apache Tomcat官网

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解压两份

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tomcat集群的配置

官网提供的配置

官网配置地址

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我的配置步骤

  <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
                 channelSendOptions="8">

          <Manager className="org.apache.catalina.ha.session.DeltaManager"
                   expireSessionsOnShutdown="false"
                   notifyListenersOnReplication="true"/>

          <Channel className="org.apache.catalina.tribes.group.GroupChannel">
            <Membership className="org.apache.catalina.tribes.membership.McastService"
                        address="228.0.0.4"
                        port="45564"
                        frequency="500"
                        dropTime="3000"/>
            <Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"
                      address="auto"
                      port="4000"
                      autoBind="100"
                      selectorTimeout="5000"
                      maxThreads="6"/>

            <Sender className="org.apache.catalina.tribes.transport.ReplicationTransmitter">
              <Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/>
            </Sender>
            <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/>
            <Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatchInterceptor"/>
          </Channel>

          <Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
                 filter=""/>
          <Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/>

          <Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer"
                    tempDir="/tmp/war-temp/"
                    deployDir="/tmp/war-deploy/"
                    watchDir="/tmp/war-listen/"
                    watchEnabled="false"/>

          <ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>
        </Cluster>

1、将上面的复制到两个tomcat的server.xml配置文件中

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2、改端口

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3、在tomcat1和tomcat2中的webapps\ROOT目录下删除页面然后加上这三个页面

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<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
    <head>
	<title>
	tomcat2
	</title>
	</head>
    <body>
        SessionID:<%=session.getId()%>
		<br>
        SessionValue:<%=session.getAttribute("session")%>
        <br>
		SessionIP:<%=request.getServerName()%>
        <br>
		SessionPort:<%=request.getServerPort()%>
		<br>
        <%
            out.println("this is tomcat 2");
        %>
    </body>
</html>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
    <head>
	<title>
	tomcat2
	</title>
	</head>
    <body>
        <%
			session.setAttribute("session","libo");
		%>
        <%
            out.println("this is set SessionValue success");
        %>
    </body>
</html>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
    <head>
	<title>
	tomcat2
	</title>
	</head>
    <body>
        <%
			session.removeAttribute("session");
		%>
        <%
            out.println("this is remove SessionValue success");
        %>
    </body>
</html>