一个tomcat设置多个端口，多个端口对应多个应用

修改tomcat/conf目录里面server.xml文件

例如下面这样新增一个8090端口，设置下appBase目录，这样就可以用一个tomcat监听多个端口，每个端口都可以放应用了。我这样新增下面这个配置以后，tomcat就监听了2个端口（8080，8090）

webapps目录和mywebapps目录的应用都会启动，可以根据不同的端口进行访问里面的应用

<?xml version="1.0" encoding="UTF-8"?>

<Server port="" shutdown="SHUTDOWN">
  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />
  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener" />
  <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />
  <Listener className="org.apache.catalina.core.ThreadLocalLeakPreventionListener" />

  <GlobalNamingResources>

    <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>

  <Service name="Catalina">

    <Connector port="" protocol="HTTP/1.1"
               connectionTimeout=""
               redirectPort="" />

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

    <Engine name="Catalina" defaultHost="localhost">

      <Realm className="org.apache.catalina.realm.LockOutRealm">

        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               resourceName="UserDatabase"/>
      </Realm>

      <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log" suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>
    </Engine>
  </Service>

  <Service name="Catalina2">

    <Connector port="" protocol="HTTP/1.1"
               connectionTimeout=""
               redirectPort="" />

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

    <Engine name="Catalina" defaultHost="localhost">

      <Realm className="org.apache.catalina.realm.LockOutRealm">

        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               resourceName="UserDatabase"/>
      </Realm>

      <Host name="localhost"  appBase="webapps2"
            unpackWARs="true" autoDeploy="true">

        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log" suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>
    </Engine>
  </Service>
</Server>

把项目war包改名为ROOT放进appBase属性指定的路径下启动服务即可。

来自：https://www.cnblogs.com/ClassNotFoundException/p/6489390.html