Tomcat启动报错Port 8080 required by Tomcat v9.0 Server at localhost is already in use. The server may al

Port 8080 required by Tomcat v9.0 Server at localhost is 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
1.打开cmd命令(电脑按住Win+R键),然后敲netstat -ano|findstr 8080
（可以复制）
2.在资源管理器(Ctrl+alt+delete键)中找到PID码为4592的进程，结束进程