只要以下的端口号不一样就可以起多个tomcat：
端口一：
<Server port="8006" shutdown="SHUTDOWN" debug="0">
端口二：
<!-- Define a non-SSL Coyote HTTP/1.1 Connector on port 8080 -->
<Connector port="8089" ....../>
端口三：
<!-- Define a Coyote/JK2 AJP 1.3 Connector on port 8009 -->
<Connector port="8010"
enableLookups="false" redirectPort="8443" debug="0"
protocol="AJP/1.3" />