tomcat要同时开多个端口只要配置conf文件夹下面的server.xml增加Service节点就可以了，如下我多开了个8083端口，同时我把Catalina文件夹多拷贝了一份另存为Catalina2
<Server port="8005" shutdown="SHUTDOWN" debug="0">
<!-- Comment out these entries to disable JMX MBeans support -->
<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"
debug="0"/>
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
debug="0"/>
<!-- Global JNDI resources -->
<GlobalNamingResources>
<!-- Test entry for demonstration purposes -->
<Environment name="simpleValue" type="java.lang.Integer" value="30"/>
<!-- 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">
</Resource>
<ResourceParams name="UserDatabase">
<parameter>
<name>factory</name>
<value>org.apache.catalina.users.MemoryUserDatabaseFactory</value>
</parameter>
<parameter>
<name>pathname</name>
<value>conf/tomcat-users.xml</value>
</parameter>
</ResourceParams>
</GlobalNamingResources>
<!-- Define the Tomcat Stand-Alone Service -->
<Service name="Catalina">
<!-- Define a non-SSL Coyote HTTP/1.1 Connector on the port specified
during installation -->
<Connector
port="8081" maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
debug="0" connectionTimeout="20000"
disableUploadTimeout="true" />
<!-- Define a Coyote/JK2 AJP 1.3 Connector on port 8009 -->
<Connector port="8009"
enableLookups="false" redirectPort="8443" debug="0"
protocol="AJP/1.3" />
<!-- Define the top level container in our container hierarchy -->
<Engine name="Catalina" defaultHost="localhost" debug="0">
<!--
<Valve className="org.apache.catalina.valves.RequestDumperValve"/>
-->
<!-- Global logger unless overridden at lower levels -->
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="catalina_log." suffix=".txt"
timestamp="true"/>
<!-- 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"
debug="0" resourceName="UserDatabase"/>
<!-- Define the default virtual host -->
<Host name="localhost" debug="0" appBase="webapps"
unpackWARs="true" autoDeploy="true">
<Logger className="org.apache.catalina.logger.FileLogger"
directory="logs" prefix="localhost_log." suffix=".txt"
timestamp="true"/>
<!--
<Context path="" docBase="ROOT" debug="0">
-->
</Host>
</Engine>
</Service>
<Service name="Catalina2">
<Connector
port="8083" maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
debug="0" connectionTimeout="20000"
disableUploadTimeout="true" />
<!-- Define a Coyote/JK2 AJP 1.3 Connector on port 8009 -->
<Connector port="8010"
enableLookups="false" redirectPort="8443" debug="0"
protocol="AJP/1.3" />
<!-- Define the top level container in our container hierarchy -->
<Engine name="Catalina2" defaultHost="localhost" debug="0">
<!-- Global logger unless overridden at lower levels -->
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="catalina_log." suffix=".txt"
timestamp="true"/>
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
debug="0" resourceName="UserDatabase"/>
<Host name="localhost" debug="0" appBase="webapps"
unpackWARs="true" autoDeploy="true">
<Logger className="org.apache.catalina.logger.FileLogger"
directory="logs" prefix="localhost_log." suffix=".txt"
timestamp="true"/>
</Host>
</Engine>
</Service>
</Server>