Apache+Tomcat +mod_proxy集群负载均衡及session

  序言:

在玩Apache+Tomcat +mod_jk集群负载均衡及session的时候发现,还有一种方式可以实现,就是网上各位大牛们说的mod_proxy反向代理。

实在弄的我的知识细胞洋洋。实践后打个报告,给自己。。

环境说明:

操作系统:win7   64位

Javajdk: 1.7 
Apache:httpd-2.2.25-win32-x86-no_ssl.msi    (本地安装路径:D:\Program Files (x86)\Apache2.2\)
Tomcat: 7.0.42  ( http://tomcat.apache.org/download-70.cgi ),如果在同一台机器上模拟,下载zip版本. 实例中展示了2个节点
mod_jk: mod_jk1.2.30_x64:  ( http://tomcat.apache.org/download-connectors.cgi )

 安装步骤:

1.安装jdk
2.安装Apache2.2,使用默认设置,并且安装路径中不要空格.
3.解压tomcat

配置步骤

修改Apache配置:

关于修改涉及到的文件httpd.conf

(1)

如图:

Apache+Tomcat +mod_proxy集群负载均衡及session

LoadModule proxy_module modules/mod_proxy.so

LoadModule negotiation_module modules/mod_negotiation.so
LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
LoadModule proxy_http_module modules/mod_proxy_http.so

此段代码前面的注释放开。

2.同时将下图中得这段代码同时放开注释。

Apache+Tomcat +mod_proxy集群负载均衡及session

# Virtual hosts
Include conf/extra/httpd-vhosts.conf

(3)文件末尾加入代码

ProxyRequests Off
<proxy balancer://cluster>
BalancerMember ajp://127.0.0.1: loadfactor=1 route=tomcat1
BalancerMember ajp://127.0.0.1: loadfactor=1 route=tomcat2
</proxy>
9988 与 9999, route=tomcat1  对应tomcat   server.xml的
<Connector port="" protocol="AJP/1.3" redirectPort="8443" />
<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat1">
含义:告诉apache服务器,使用mod_proxy反向代理。 (4).在conf/extra/httpd-vhosts.conf中添加代码
<VirtualHost *:80>   // 对应httpd.conf  服务器端口号
ServerAdmin wg@qq.com //对应httpd.conf ServerAdmin
ServerName 127.0.0.1
ServerAlias localhost
ProxyPass / balancer://cluster/ stickysession=jsessionid nofailover=On //proxypass 指定的是分发器。以及session复制
ProxyPassReverse / balancer://cluster/
ErrorLog "logs/proxyTest-error.log" //日志信息
CustomLog "logs/lbtest-access.log" common
</VirtualHost>

实例测试

首先启动apache 服务器, 测试服务器是否正常启动。再次启动tomcat,测试是否正常启动。如遇错误可查看错误日志解决。

1.在web.xml文件中增加

<distributable/>

2.编写测试jsp代码 
Apache+Tomcat +mod_proxy集群负载均衡及session
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ page import="java.text.SimpleDateFormat"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Tomcat集群测试</title>
</head> <body>
服务器信息: <%
String dtm = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").format(new Date());
System.out.println("["+request.getLocalAddr()+":"+ request.getLocalPort()+"]" + dtm);
out.println("<br>["+request.getLocalAddr()+":" +request.getLocalPort()+"]" + dtm+"<br>");
%> session分发:
<%
session.setAttribute("name","dennisit");
System.out.println("[session分发] session id:"+session.getId());
out.println("<br>[session分发] session id: " + session.getId()+"<br>");
%>
</body>
</html>
Apache+Tomcat +mod_proxy集群负载均衡及session

实列效果

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" alt="" />

(2)  访问 http://localhost/tomcat_apche/  刷新3次效果看到session  id  相同

并且访问到不同tomcat服务器.表明。实现负载均衡及session 共享。

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" 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" alt="" />

完事!!!

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