一、 需要的環境  ：自行安裝好 Tomcat 8.5  。 以及兩個以上java的 web專案，打包成war包。

二 、把war包放在 webapps 目錄下面 ， 如下（根據自己路徑來放置）

E:\wamp\Tomcat 8.5\webapps

三、開啟配置檔案 

E:\wamp\Tomcat 8.5\conf\server.xml

找到   <Service name="Catalina"> 節點

  <Service name="Catalina">
    <Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    <Connector port="8080" protocol="AJP/1.3" redirectPort="8443" />
    <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" />

		<Context path="" docBase="E:\wamp\Tomcat 8.5\webapps\MbPc0338" reloadable="true" 
		   caseSensitive="false" debug="0"></Context> 			   		   
      </Host>
    </Engine>
  </Service>
  
   <Service name="Catalina">
    <Connector port="9090" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    <Connector port="9090" protocol="AJP/1.3" redirectPort="8443" />
    <Engine name="Catalina" defaultHost="yjq.test2.com">
      <Realm className="org.apache.catalina.realm.LockOutRealm">
        <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
               resourceName="UserDatabase"/>
      </Realm>
      <Host name="yjq.test2.com"  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" />

		<Context path="" docBase="E:\wamp\Tomcat 8.5\webapps\MbPc0796" reloadable="true" 
		   caseSensitive="false" debug="0"></Context> 			   		   
      </Host>
    </Engine>
  </Service> 
 

這是兩個專案的配置。

主要是配置埠 和 專案路徑

埠配置程式碼

    <Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
    <Connector port="8080" protocol="AJP/1.3" redirectPort="8443" />

路徑配置程式碼

		<Context path="" docBase="E:\wamp\Tomcat 8.5\webapps\MbPc0796" reloadable="true" 
		   caseSensitive="false" debug="0"></Context> 
 

以上完成之後。重啟Tomcat。