mac上配置好了tomcat，访问主页是空白页，改了很多次端口号还是一样，截了一些控制台信息

org.apache.coyote.AbstractProtocol.init Failed to initialize end point associated with ProtocolHandler ["http-nio-10241"]
java.net.BindException: Address already in use

org.apache.catalina.core.StandardService.initInternal Failed to initialize connector [Connector[HTTP/1.1-10241]]
org.apache.catalina.LifecycleException: Failed to initialize component [Connector[HTTP/1.1-10241]]

org.apache.coyote.AbstractProtocol.init Failed to initialize end point associated with ProtocolHandler ["ajp-nio-8009"]
java.net.BindException: Address already in use

[main] org.apache.catalina.core.StandardService.initInternal Failed to initialize connector [Connector[AJP/1.3-8009]]
org.apache.catalina.LifecycleException: Failed to initialize component [Connector[AJP/1.3-8009]]

[localhost-startStop-1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start:
org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/docs]]

[localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Error deploying web application directory /usr/local/apache-tomcat-8.5.9/webapps/docs
java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/docs]]

localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Error deploying web application directory /usr/local/apache-tomcat-8.5.9/webapps/host-manager
java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/host-manager]]

已解决，我重新下了个jdk就好了，原本的java会一直占用tomcat的端口，谢谢各位了。

是不是起了多个tomcat

java.net.BindException: Address already in use
地址使用了，tomcat当前实例换一个ip地址，或者换一个端口。