nginx完成session共享
首先安装niginx，跟redis
然后准备两个tomcat,修改他们的端口号
修改nginx.conf加上：
[html]
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;
}
下载tomcat-redis-session-manager相应的jar包，主要有三个：
tomcat-redis-session-manager-1.2-tomcat-7-java-7.jar，jedis-2.5.2.jar，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");
- %>
开启niginx服务
通过访问http://端口号/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。