Several ports (8005, 8080, 8009)

Several ports (8005, 8080, 8009) required by Tomcat v9.0 Server at localhost are already in use. The server may already be running in another process, or a system process may be using the port. To start this server you will need to stop the other process or change the port number(s).

一般报这种错误有两种情况，1就是Tomcat端口号被占用，修改端口号的一般都在server.xml文件里，还有一种情况是Tomcat的启动问题，这就需要我们在Tomcat的文件bin中点击执行shutdown.bat这个win可执行文件，注意一定要是win可执行文件，因为那里面有好多可执行文件，有的是win的有的是liunx的

Tomcat端口号被占用，修改端口号的方法，如下图

Tomcat的启动问题 如下图