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nginx+tomcat+redis完成session共享

2015-08-28 10:39 591 查看
本文记录nginx+redis+tomcat实现session共享的过程

nginx安装:/article/9080974.html

redis安装:/article/9080972.html

准备两个tomcat,修改相应的端口

名称IP端口tomcat版本JDK
tomcat110.10.49.2380807.0.401.7.0_25
tomcat210.10.49.1580817.0.401.7.0_25
修改nginx.conf加上:
upstream backend {
server 10.10.49.23:8080 max_fails=1 fail_timeout=10s;
server 10.10.49.15:8081 max_fails=1 fail_timeout=10s;
}
修改nginx.conf的location成
location / {
root   html;
index  index.html index.htm;
proxy_pass http://backend; }


启动nginx。

下载tomcat-redis-session-manager相应的jar包,主要有三个:

wget https://github.com/downloads/jcoleman/tomcat-redis-session-manager/tomcat-redis-session-manager-1.2-tomcat-7-java-7.jar
wget http://central.maven.org/maven2/redis/clients/jedis/2.5.2/jedis-2.5.2.jar
wget http://central.maven.org/maven2/org/apache/commons/commons-pool2/2.0/commons-pool2-2.0.jar
下载完成后拷贝到$TOMCAT_HOME/lib中

修改两tomcat的context.xml:

<Context>

<!-- Default set of monitored resources -->
<WatchedResource>WEB-INF/web.xml</WatchedResource>

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

<!-- Uncomment this to enable Comet connection tacking (provides events
on session expiration as well as webapp lifecycle) -->
<!--
<Valve className="org.apache.catalina.valves.CometConnectionManagerValve" />
-->

<Valve className="com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve" />
<Manager className="com.orangefunction.tomcat.redissessions.RedisSessionManager"
host="10.10.49.20"
port="6379"
database="0"
maxInactiveInterval="60" />
</Context>


在tomcat/webapps/test放一个index.jsp

<%@ page language="java" %>
<html>
<head><title>TomcatA</title></head>
<body>

<table align="centre" border="1">
<tr>
<td>Session ID</td>
<td><%= session.getId() %></td>
</tr>
<tr>
<td>Created on</td>
<td><%= session.getCreationTime() %></td>
</tr>
</table>
</body>
</html>
sessionID:<%=session.getId()%>
<br>
SessionIP:<%=request.getServerName()%>
<br>
SessionPort:<%=request.getServerPort()%>
<%
//为了区分,第二个可以是222
out.println("This is Tomcat Server 1111");
%>


启动tomcat,发现有异常:com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve 类找不到

分别打开三个jar包,确实没有这个类,解决可以参考:

/article/10459362.html



通过访问http://10.10.49.20/test/



刷新:



可以看到虽然Server从1111变为2222,但session的创建时间没有变化,这就完成了session共享。
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