第一步：安装java环境
1、在【我的电脑】上按右键，选择【属性】
2.选择【系统属性】面板上面的【高级】选项，然后选择下面的【环境变量】
3.在底部的【系统变量】列表中，查找变量名为“JAVA_HOME”的系统变量，如果没有，则点击【新建】按钮，在弹出的对话框里，变量名填入“JAVA_HOME”，在变量值里面填入jdk的安装路径（本教程以“C:\Program Files\Java\jdk1.6.0_04”为例）
4、点击【确定】，查找变量名为“Path”的环境变量，然后点击【编辑】按钮，在变量值的最后面加上“ ;C:\Program Files\Java\jdk1.6.0_04\bin”， 记得别忘了最前面的那个分号
5、点击【确定】按钮，查找变量名为“CLASSPATH”的环境变量，如果没有找到该环境变量则点击【新建】按钮，在变量名里填入“CLASSPATH”，在变量值里面填入“ C:\Program Files\Java\jdk1.6.0_04\lib\dt.jar;C:\Program Files\Java\jdk1.6.0_04\lib\tools.jar;.”特别要注意的就是最后那个点,一定要写上
6、依次点击【确定】完成设置，如要查看前面的安装及配置是否成功，可在操作系统的【运行】中输入“cmd”，按回车键进入命令行模式，在命令行模式中输入“java –version”，然后回车，如正确输出java的安装版本信息，则表示java环境已经顺利安装成功。
第二步:安装tomcat
第三步：配置多站点 server.xml：
<!– Note: A “Server” is not itself a “Container”, so you may not
define subcomponents such as “Valves” at this level.
Documentation at /docs/config/server.html
–>
<Server port=”8005″ shutdown=”SHUTDOWN”>
<!–APR library loader. Documentation at /docs/apr.html –>
<Listener className=”org.apache.catalina.core.AprLifecycleListener” SSLEngine=”on” />
<!–Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html –>
<Listener className=”org.apache.catalina.core.JasperListener” />
<!– JMX Support for the Tomcat server. Documentation at /docs/non-existent.html –>
<Listener className=”org.apache.catalina.mbeans.ServerLifecycleListener” />
<Listener className=”org.apache.catalina.mbeans.GlobalResourcesLifecycleListener” />
<!– Global JNDI resources
Documentation at /docs/jndi-resources-howto.html
–>
<GlobalNamingResources>
<!– Editable user database that can also be used by
UserDatabaseRealm to authenticate users
–>
<Resource name=”UserDatabase” auth=”Container”
type=”org.apache.catalina.UserDatabase”
description=”User database that can be updated and saved”
factory=”org.apache.catalina.users.MemoryUserDatabaseFactory”
pathname=”conf/tomcat-users.xml” />
</GlobalNamingResources>
<!– A “Service” is a collection of one or more “Connectors” that share
a single “Container” Note: A “Service” is not itself a “Container”,
so you may not define subcomponents such as “Valves” at this level.
Documentation at /docs/config/service.html
–>
<Service name=”Catalina”>
<!–The connectors can use a shared executor, you can define one or more named thread pools–>
<!–
<Executor name=”tomcatThreadPool” namePrefix=”catalina-exec-”
maxThreads=”150″ minSpareThreads=”4″/>
–>
<!– A “Connector” represents an endpoint by which requests are received
and responses are returned. Documentation at :
Java HTTP Connector: /docs/config/http.html (blocking & non-blocking)
Java AJP Connector: /docs/config/ajp.html
APR (HTTP/AJP) Connector: /docs/apr.html
Define a non-SSL HTTP/1.1 Connector on port 8080
–>
<Connector port=”80″ protocol=”HTTP/1.1″
connectionTimeout=”20000″
redirectPort=”8443″ />
<!– A “Connector” using the shared thread pool–>
<!–
<Connector executor=”tomcatThreadPool”
port=”8080″ protocol=”HTTP/1.1″
connectionTimeout=”20000″
redirectPort=”8443″ />
–>
<!– Define a SSL HTTP/1.1 Connector on port 8443
This connector uses the JSSE configuration, when using APR, the
connector should be using the OpenSSL style configuration
described in the APR documentation –>
<!–
<Connector port=”8443″ protocol=”HTTP/1.1″ SSLEnabled=”true”
maxThreads=”150″ scheme=”https” secure=”true”
clientAuth=”false” sslProtocol=”TLS” />
–>
<!– Define an AJP 1.3 Connector on port 8009 –>
<Connector port=”8009″ protocol=”AJP/1.3″ redirectPort=”8443″ />
<!– An Engine represents the entry point (within Catalina) that processes
every request. The Engine implementation for Tomcat stand alone
analyzes the HTTP headers included with the request, and passes them
on to the appropriate Host (virtual host).
Documentation at /docs/config/engine.html –>
<!– You should set jvmRoute to support load-balancing via AJP ie :
<Engine name=”Standalone” defaultHost=”localhost” jvmRoute=”jvm1″>
–>
<Engine name=”Catalina” defaultHost=”localhost”>
<!–For clustering, please take a look at documentation at:
/docs/cluster-howto.html (simple how to)
/docs/config/cluster.html (reference documentation) –>
<!–
<Cluster className=”org.apache.catalina.ha.tcp.SimpleTcpCluster”/>
–>
<!– The request dumper valve dumps useful debugging information about
the request and response data received and sent by Tomcat.
Documentation at: /docs/config/valve.html –>
<!–
<Valve className=”org.apache.catalina.valves.RequestDumperValve”/>
–>
<!– This Realm uses the UserDatabase configured in the global JNDI
resources under the key “UserDatabase”. Any edits
that are performed against this UserDatabase are immediately
available for use by the Realm. –>
<Realm className=”org.apache.catalina.realm.UserDatabaseRealm”
resourceName=”UserDatabase”/>
<!– Define the default virtual host
Note: XML Schema validation will not work with Xerces 2.2.
–>
<Host name=”localhost” appBase=”webapps”
unpackWARs=”true” autoDeploy=”true”
xmlValidation=”false” xmlNamespaceAware=”false”>
<!– SingleSignOn valve, share authentication between web applications
Documentation at: /docs/config/valve.html –>
<!–
<Valve className=”org.apache.catalina.authenticator.SingleSignOn” />
–>
<!– Access log processes all example.
Documentation at: /docs/config/valve.html –>
<!–
<Valve className=”org.apache.catalina.valves.AccessLogValve” directory=”logs”
prefix=”localhost_access_log.” suffix=”.txt” pattern=”common” resolveHosts=”false”/>
–>
</Host>
<Host appBase=”webapps2″ name=”test01.com”>
<Alias>www.test01.com</Alias>
<Context path=”” docBase=”C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\test01″ debug=”0″ reloadable=”true”></Context>
</Host>
<Host appBase=”webapps3″ name=”test02.com”>
<Alias>www.test02.com</Alias>
<Context path=”” docBase=”C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\test02″ debug=”0″ reloadable=”true”></Context>
</Host>
<Host appBase=”webapps4″ name=”test03.com”>
<Alias>www.test03.com</Alias>
<Context path=”” docBase=”C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\test03″ debug=”0″ reloadable=”true”></Context>
</Host>
<Host appBase=”webapps5″ name=”test04.com”>
<Alias>www.test04.com</Alias>
<Context path=”” docBase=”C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\test04″ debug=”0″ reloadable=”true”></Context>
</Host>
</Engine>
</Service>
</Server>