Tomcat服务器8080端口占用报错

报错信息如下：

Oct ,  :: PM org.apache.coyote.AbstractProtocol init
SEVERE: Failed to initialize end point associated with ProtocolHandler ["http-bio-8080"]
java.net.BindException: Address already in use <null>:
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:)
    at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:)
    at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:)
    at org.apache.coyote.http11.AbstractHttp11JsseProtocol.init(AbstractHttp11JsseProtocol.java:)
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.core.StandardService.initInternal(StandardService.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:)
    at java.lang.reflect.Method.invoke(Method.java:)
    at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:)
Caused by: java.net.BindException: Address already in use
    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:)
    at java.net.ServerSocket.bind(ServerSocket.java:)
    at java.net.ServerSocket.<init>(ServerSocket.java:)
    at java.net.ServerSocket.<init>(ServerSocket.java:)
    at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:)
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:)
    ...  more

Oct ,  :: PM org.apache.catalina.core.StandardService initInternal
SEVERE: Failed to initialize connector [Connector[HTTP/1.1-]]
org.apache.catalina.LifecycleException: Failed to initialize component [Connector[HTTP/1.1-]]
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.core.StandardService.initInternal(StandardService.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:)
    at java.lang.reflect.Method.invoke(Method.java:)
    at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:)
Caused by: org.apache.catalina.LifecycleException: Protocol handler initialization failed
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    ...  more
Caused by: java.net.BindException: Address already in use <null>:
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:)
    at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:)
    at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:)
    at org.apache.coyote.http11.AbstractHttp11JsseProtocol.init(AbstractHttp11JsseProtocol.java:)
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:)
    ...  more
Caused by: java.net.BindException: Address already in use
    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:)
    at java.net.ServerSocket.bind(ServerSocket.java:)
    at java.net.ServerSocket.<init>(ServerSocket.java:)
    at java.net.ServerSocket.<init>(ServerSocket.java:)
    at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:)
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:)
    ...  more

Oct ,  :: PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Oct ,  :: PM org.apache.coyote.AbstractProtocol init
SEVERE: Failed to initialize end point associated with ProtocolHandler ["ajp-bio-8009"]
java.net.BindException: Address already in use <null>:
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:)
    at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:)
    at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:)
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.core.StandardService.initInternal(StandardService.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:)
    at java.lang.reflect.Method.invoke(Method.java:)
    at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:)
Caused by: java.net.BindException: Address already in use
    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:)
    at java.net.ServerSocket.bind(ServerSocket.java:)
    at java.net.ServerSocket.<init>(ServerSocket.java:)
    at java.net.ServerSocket.<init>(ServerSocket.java:)
    at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:)
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:)
    ...  more

Oct ,  :: PM org.apache.catalina.core.StandardService initInternal
SEVERE: Failed to initialize connector [Connector[AJP/1.3-]]
org.apache.catalina.LifecycleException: Failed to initialize component [Connector[AJP/1.3-]]
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.core.StandardService.initInternal(StandardService.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:)
    at java.lang.reflect.Method.invoke(Method.java:)
    at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:)
Caused by: org.apache.catalina.LifecycleException: Protocol handler initialization failed
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:)
    at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:)
    ...  more
Caused by: java.net.BindException: Address already in use <null>:
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:)
    at org.apache.tomcat.util.net.AbstractEndpoint.init(AbstractEndpoint.java:)
    at org.apache.coyote.AbstractProtocol.init(AbstractProtocol.java:)
    at org.apache.catalina.connector.Connector.initInternal(Connector.java:)
    ...  more
Caused by: java.net.BindException: Address already in use
    at java.net.PlainSocketImpl.socketBind(Native Method)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:)
    at java.net.ServerSocket.bind(ServerSocket.java:)
    at java.net.ServerSocket.<init>(ServerSocket.java:)
    at java.net.ServerSocket.<init>(ServerSocket.java:)
    at org.apache.tomcat.util.net.DefaultServerSocketFactory.createSocket(DefaultServerSocketFactory.java:)
    at org.apache.tomcat.util.net.JIoEndpoint.bind(JIoEndpoint.java:)
    ...  more

原因：

有其他的程序占用8080端口，或有之前的运行的tomcat程序未停止。

解决方案：

1. 通过下述命令查询8080端口所被占用的程序。

netstat -nao
lsof -i:

以上两条其中一条均可。若为java则继续进行下述操作。

2. 通过下述命令查询之前运行的tomcat。

ps -awwef | grep tomcat

3. 若2中出现多条tomcat信息。利用kill命令将其中止。

kill - [PID]