Tomcat为何出现Protocol handler initialization failed问题

最新推荐文章于 2025-06-02 16:13:36 发布

木生火18624

最新推荐文章于 2025-06-02 16:13:36 发布

阅读量1.5w

点赞数

CC 4.0 BY-SA版权

分类专栏：安装部署 JAVA基础

本文链接：https://blog.youkuaiyun.com/penghao_1/article/details/111210585

安装部署同时被 2 个专栏收录

23 篇文章

订阅专栏

JAVA基础

14 篇文章

订阅专栏

这篇博客详细记录了在遇到Tomcat启动时出现'Protocol handler initialization failed'错误的排查过程。通过分析log文件，发现是由于端口被占用导致的问题。在更改端口配置后，发现即使解决了端口冲突，Tomcat仍然无法正常启动。进一步排查发现是配置文件中存在无效路径，删除后Tomcat成功启动。博客最后提供了成功的配置方案。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

通过Tomcat的log文件，查看启动不了的原因。

15-Dec-2020 10:56:13.693 严重 [main] org.apache.catalina.core.StandardService.initInternal Failed to initialize connector [Connector[AJP/1.3-8099]]
org.apache.catalina.LifecycleException: Failed to initialize component [Connector[AJP/1.3-8099]]
   at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:112)
   at org.apache.catalina.core.StandardService.initInternal(StandardService.java:549)
   at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)
   at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:875)
   at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)
   at org.apache.catalina.startup.Catalina.load(Catalina.java:632)
   at org.apache.catalina.startup.Catalina.load(Catalina.java:655)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:498)
   at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:309)
   at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)
Caused by: org.apache.catalina.LifecycleException: Protocol handler initialization failed
   at org.apache.catalina.connector.Connector.initInternal(Connector.java:995)
   at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:107)
   ... 12 more
Caused by: java.net.BindException: Address already in use: bind
   at sun.nio.ch.Net.bind0(Native Method)
   at sun.nio.ch.Net.bind(Net.java:433)
   at sun.nio.ch.Net.bind(Net.java:425)
   at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
   at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
   at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:210)
   at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:1086)
   at org.apache.tomcat.util.net.AbstractJsseEndpoint.init(AbstractJsseEndpoint.java:268)
   at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:581)
   at org.apache.catalina.connector.Connector.initInternal(Connector.java:993)
   ... 13 more

根据提示的信息是端口被占用。导致Tomcat启动失败。

当所有的端口修改完毕后，发现还是启动不了。后面将不存在的文件路径撤销掉然后即可启动成功。

下面附成功的配置

<?xml version="1.0" encoding="UTF-8"?>
<Server port="8005" shutdown="SHUTDOWN">
  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />

  <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" />
  <!-- Prevent memory leaks due to use of particular java/javax APIs-->
  <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="8080" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />

    <!-- Define an AJP 1.3 Connector on port 8009 -->
    <Connector port="8009" 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" />

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

   <Service name="registerAdmin_xsh">

    <Connector port="9011" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
	    <Connector port="8096" protocol="AJP/1.3" redirectPort="8443" />
    <Engine name="registerAdmin_xsh" 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:\test\registerAdmin_xsh" reloadable="true"> 
        </Context>

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

 
   <Service name="registerStu_xsh">

    <Connector port="9012" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
	    <Connector port="8079" protocol="AJP/1.3" redirectPort="8443" />
    <Engine name="registerAdmin_xsh" 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:\test\registerStu_xsh" reloadable="true"> 
        </Context>

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


<Service name="leaveAdmin_xsh">

    <Connector port="9015" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
	    <Connector port="8094" protocol="AJP/1.3" redirectPort="8443" />
    <Engine name="registerAdmin_xsh" 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:\test\leaveAdmin_xsh" reloadable="true"> 
        </Context>

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

<Service name="leaveStu_xsh">

    <Connector port="9016" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
	    <Connector port="8093" protocol="AJP/1.3" redirectPort="8443" />
    <Engine name="leaveStu_xsh" 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:\test\leaveStu_xsh" reloadable="true"> 
        </Context>

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



<Service name="repairAdmin_xsh">

    <Connector port="9017" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
	    <Connector port="8092" protocol="AJP/1.3" redirectPort="8443" />
    <Engine name="repairAdmin_xsh" 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:\test\repairAdmin_xsh" reloadable="true"> 
        </Context>

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



<Service name="repairStu_xsh">

    <Connector port="9018" protocol="HTTP/1.1"
               connectionTimeout="20000"
               redirectPort="8443" />
	    <Connector port="8091" protocol="AJP/1.3" redirectPort="8443" />
    <Engine name="repairStu_xsh" 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:\test\repairStu_xsh" reloadable="true"> 
        </Context>

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