，，，，open-sourcefreecluster。！
：DownloadApache 》http://httpd.apache.org/download.cgi#apache22as shown in the figure below：
version2.4.9，HoweverBecause，version！
:Downloadmod_jk（Apachemodule，JVAV platformWEB server）
DownloadAddress:
http://archive.apache.org/dist/tomcat/tomcat-connectors/jk/binaries/win32/jk-1.2.31/
mod_jk-1.2.31-httpd-2.2.3.so，IfhttpserverApache2.0.Xversion，mod_jk-1.2.31-httpd-2.0.52.so，apacheversion，jk！OK？
：InstallationDownloadfile：
InstallationApache，InstallationConfiguration、ManagementEmail，，Then，configuration file。，80port(iis)。Installationpath，。default。Installationsuccess，system，Startapache，If，DescriptionserviceStart（IfserviceStart，DescriptionInstallationConfigurationerror，）。Ifdefault，port80，，：http://localhost/ ， " It works “。。as shown in the figure below：
as shown in the figure below:
：Configuration
InstallationApachehttpd.conffile，:
Add:
conffilemod_jk.conffile
Configuration:
modulesfile，Downloadmod_jk-1.2.31-httpd-2.2.3.sofile；xxx.so；as shown in the figure below:
conffileworkers.propertiesfile，Configuration：
:Tomcat，Tomcatproblem，portport，，，HoweverhostConfigurationIPAddress，！
ConfigurationTomcatserver.xmlfile，port，Server,Connector,Connector AJP,port，Downloadserver.xmlfile。
Configuration:
：Configurationload balancing，Configurationsessionreplication，serversession
Configuration：，，webTesting：
web，web.xmlfileAdd，distributableservlet/JSP，distributedWeb！
ok，jspTesting，Testing，Testing：
- <%@ page contentType="text/html; charset=GBK" %>
- <%@ page import="java.util.*" %>
- <html><head><title>Cluster App Test</title></head>
- <body>
- Server Info:
- <%
- out.println(request.getLocalAddr() + " : " + request.getLocalPort()+"<br>");%>
- <%
- out.println("<br> ID " + session.getId()+"<br>");
- // If Session Settings
- String dataName = request.getParameter("dataName");
- if (dataName != null && dataName.length() > 0) {
- String dataValue = request.getParameter("dataValue");
- session.setAttribute(dataName, dataValue);
- }
- out.println("<b>Session </b><br>");
- System.out.println("============================");
- Enumeration e = session.getAttributeNames();
- while (e.hasMoreElements()) {
- String name = (String)e.nextElement();
- String value = session.getAttribute(name).toString();
- out.println( name + " = " + value+"<br>");
- System.out.println( name + " = " + value);
- }
- %>
- <form action="test2.jsp" method="POST">
- :<input type=text size=20 name="dataName">
- <br>
- :<input type=text size=20 name="dataValue">
- <br>
- <input type=submit>
- </form>
- </body>
- </html>
webTomcat1,Tomcat2，classfile，ThenStarttomcat1,Tomcat2，Start，FinallyStartApache
：http://127.0.0.1/test/test2.jsp：，，Tomcat1,Tomcat2
sessionID，Tomcat，
dataTomcat：
，clustersessionreplicationsuccess，tomcatsession，clusterConfiguration，，，。
Additionally:Server Info : null IPAddress?，problem，，！
，，，！….
fileDownloadAddress：
，configuration file,Apache,jk，Download！
BlogAddress：http://1936625305.blog.51cto.com/6410597/1406268