1.首先安装apache，编译完成后，通过IP:端口就行访问，如果返回“it workers”证明Apache启动成功（注意apache的工程路径要正确）
2.下载JK，下载地址为http://mirror.bjtu.edu.cn/apache/tomcat/tomcat-connectors/jk/binaries/win32/jk-1.2.31/，果http服务器是Apache2.0.X版本，则必须选择mod_jk-1.2.31-httpd-2.0.52.so，页面下方有英文的说明，大家可以看下，我这里宣传的mod_jk-1.2.23-apache-2.2.x-linux-x86_64.so，跟自己操作系统版本吻合，然后重命名为mod_jk.so，并且赋值777权限
3.将mod_jk.so拷贝到apache/modules
4.在httpd.conf里增加如下内容
include "/usr/local/apache/conf/mod_jk.conf"
5.在conf路径下新建mod_jk.conf文件，并添加如下内容
#加载mod_jk Module
LoadModule jk_module modules/mod_jk.so
#指定 workers.properties文件路径
JkWorkersFile conf/workers.properties
#指定哪些请求交给tomcat处理,"loadbalancer"为在workers.propertise里指定的负载分配控制器名
JkLogFile logs/mod_jk.log
#JkLogLevel debug
JkMount /*.do loadbalancer
JkMount /*.jsp loadbalancer
6.在conf下新建workers.properties文件，并添加如下内容
worker.list=loadbalancer
#此处与mod_jk.conf中保持一致
worker.worker2.port=8009
#tomcat2中 ajp13 端口号，对应tomcat配置文件server.xml中Connector port="8009",默认8009
worker.worker2.host=127.0.0.1
#worker2的地址，本机loaclhost或者127.0.0.1，远程直接写IP
worker.worker2.type=ajp13
#与worker2中的server.xml的protocol保持一致
worker.worker2.lbfactor=1
#负载的权重值，越高表示负载越大
worker.worker3.port=9009
worker.worker3.host=127.0.0.1
worker.worker3.type=ajp13
worker.worker3.lbfactor=1
worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=worker2,worker3
#指定负载的worker列表，用逗号分隔
worker.loadbalancer..sticky_session=false
#配置session会话是否为粘性
#这样负载均衡器lb就会尽量保持一个session，也就是使用户在一次会话中跟同一个Tomcat进行交互
worker.loadbalancer..sticky_session_force=false
worker.loadbalancer.sticky_session=1
#是否启用session共享
7.下载tomcat并解压，复制2份tomcat，保持成为worker2，worker3
修改2个tomcat的server.xml，保证2个tomcat的端口号不一致，具体配置如下，需要修改黑体加粗标示
worker2如下：
[html]view plaincopy-
<?xmlversion='1.0'encoding='utf-8'?>
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<Serverport="8005"shutdown="SHUTDOWN">
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<ListenerclassName="org.apache.catalina.core.AprLifecycleListener"SSLEngine="on"/>
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<ListenerclassName="org.apache.catalina.core.JasperListener"/>
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<ListenerclassName="org.apache.catalina.mbeans.ServerLifecycleListener"/>
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<ListenerclassName="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
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<GlobalNamingResources>
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<Resourcename="UserDatabase"auth="Container"
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type="org.apache.catalina.UserDatabase"
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description="User database that can be updated and saved"
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factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
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pathname="conf/tomcat-users.xml"/>
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</GlobalNamingResources>
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<Servicename="Catalina">
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<Connectorport="8080"protocol="HTTP/1.1"
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connectionTimeout="20000"
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redirectPort="8443"/>
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<Connectorport="8009"protocol="AJP/1.3"redirectPort="8443"/>
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<!--<Engine name="Catalina" defaultHost="localhost">-->
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<Enginename="Catalina"defaultHost="localhost"jvmRoute="worker2">
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<RealmclassName="org.apache.catalina.realm.UserDatabaseRealm"
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resourceName="UserDatabase"/>
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<Hostname="localhost"appBase="webapps"
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unpackWARs="true"autoDeploy="true"
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xmlValidation="false"xmlNamespaceAware="false">
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</Host>
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</Engine>
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</Service>
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</Server>
worker3如下：
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<?xmlversion='1.0'encoding='utf-8'?>
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<Serverport="8006"shutdown="SHUTDOWN">
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<ListenerclassName="org.apache.catalina.core.AprLifecycleListener"SSLEngine="on"/>
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<ListenerclassName="org.apache.catalina.core.JasperListener"/>
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<ListenerclassName="org.apache.catalina.mbeans.ServerLifecycleListener"/>
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<ListenerclassName="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"/>
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<GlobalNamingResources>
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<Resourcename="UserDatabase"auth="Container"
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type="org.apache.catalina.UserDatabase"
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description="User database that can be updated and saved"
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factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
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pathname="conf/tomcat-users.xml"/>
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</GlobalNamingResources>
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<Servicename="Catalina">
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<Connectorport="8081"protocol="HTTP/1.1"
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connectionTimeout="20000"
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redirectPort="8443"/>
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<Connectorport="9009"protocol="AJP/1.3"redirectPort="8443"/>
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<!--<Engine name="Catalina" defaultHost="localhost">-->
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<Enginename="Catalina"defaultHost="localhost"jvmRoute="worker3">
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<RealmclassName="org.apache.catalina.realm.UserDatabaseRealm"
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resourceName="UserDatabase"/>
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<Hostname="localhost"appBase="webapps"
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unpackWARs="true"autoDeploy="true"
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xmlValidation="false"xmlNamespaceAware="false">
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</Host>
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</Engine>
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</Service>
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</Server>
8.分别在2个tomcat下建立项目test1，并新增andashu.jsp,内容如下：
<%
System.out.println("===========");
%>
9.分别访问2个tomcat，http://IP:8081/test1/andashu.jsp 以及http://10.14.133.204:8080/test1/andashu.jsp，如果2个tomcat的日志catalina.out里 都打印出===========，证明2个tomcat访问都ok
10.分别启动apache worker2，worker3，用不同的浏览器或者不同的机器分别访问http://IP/test1/andashu.jsp，如果如果2个tomcat的日志catalina.out里 都打印出===========，证明负载均衡搭建成功（这里要用不同浏览器或者不同机器访问）
11.试节点故障，随便停掉其中的一台tomcat，继续访问http://IP/test1/andashu.jsp，能正常访问