同一服務器部署多個tomcat時，存在端口號沖突的問題，所以需要修改tomcat配置文件server.xml，以tomcat7為例。

首先了解下tomcat的幾個主要端口：

<Server port="8005" shutdown="SHUTDOWN">
 
<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="60000" redirectPort="8443" disableUploadTimeout="false" executor="tomcatThreadPool" URIEncoding="UTF-8"/>
 
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />

其中8005為遠程停服務端口，8080為HTTP端口8009為AJP端口，8443為HTTPS端口，APACHE能過AJP協議訪問TOMCAT的8009端口。

部署多個tomcat主要修改三個端口：
1.遠程停服務端口，默認8005，如下改為8006

<Server port="8006" shutdown="SHUTDOWN">

2.HTTP端口，默認8080，如下改為8081

<Connector port="8081" protocol="HTTP/1.1" connectionTimeout="60000" redirectPort="8443" disableUploadTimeout="false" executor="tomcatThreadPool" URIEncoding="UTF-8"/>

3.AJP端口，默認8009，如下改,8010

<Connector port="8010" protocol="AJP/1.3" redirectPort="8443" />