例如：

只在一台服务器上安装一个tomcat4.1，然后这台服务器上有两个程序
需要这样访问：
http://192.168.1.100:8888 //访问程序1
http://192.168.1.100:8889 //访问程序2

实现方法：

在 server.xml 中多加一个 service，即定义两个service，然后修改其端口号即可，即：

<Server port="8005" shutdown="SHUTDOWN" debug="0">
    <Service name="Tomcat-Apache-1">
        <Connector className="org.apache.catalina.connector.warp.WarpConnector"
            port="8888" minProcessors="5" maxProcessors="75"
            enableLookups="true"
            acceptCount="10" debug="0"/>
        <Engine className="org.apache.catalina.connector.warp.WarpEngine"
            name="Apache" defaultHost="localhost" debug="0" appBase="webapps">
            <Logger className="org.apache.catalina.logger.FileLogger"
                prefix="apache_log." suffix=".txt"
                timestamp="true"/>
            <Realm className="org.apache.catalina.realm.MemoryRealm"/>
            <Host name="localhost" debug="0" appBase="webapps" unpackWARs="true">
                <Valve className="org.apache.catalina.valves.AccessLogValve"
                    directory="logs" prefix="localhost_access_log." suffix=".txt"
                    pattern="common"/>
                <Logger className="org.apache.catalina.logger.FileLogger"
                    directory="logs" prefix="localhost_log." suffix=".txt"
                    timestamp="true"/>
                <Context path="" docBase="G:/" debug="0" crosscontext="true" privileged="true">
                </Context>
            </Host>
        </Engine>
    </Service>

    <Service name="Tomcat-Apache-2">
        <Connector className="org.apache.catalina.connector.warp.WarpConnector"
            port="8889" minProcessors="5" maxProcessors="75"
            enableLookups="true"
            acceptCount="10" debug="0"/>
        <Engine className="org.apache.catalina.connector.warp.WarpEngine"
            name="Apache" defaultHost="localhost" debug="0" appBase="webapps">
            <Logger className="org.apache.catalina.logger.FileLogger"
                prefix="apache_log." suffix=".txt"
                timestamp="true"/>
            <Realm className="org.apache.catalina.realm.MemoryRealm"/>
            <Host name="localhost" debug="0" appBase="webapps" unpackWARs="true">
                <Valve className="org.apache.catalina.valves.AccessLogValve"
                    directory="logs" prefix="localhost_access_log." suffix=".txt"
                    pattern="common"/>
                <Logger className="org.apache.catalina.logger.FileLogger"
                    directory="logs" prefix="localhost_log." suffix=".txt"
                    timestamp="true"/>
                <Context path="" docBase="G:/" debug="0" crosscontext="true" privileged="true">
                </Context>
            </Host>
        </Engine>
    </Service>

</Server>