运行Spring项目报错 “Web server failed to start. Port 8080 was already in use.”（二）

【日期】：2020/4/7

【问题】：续上次修改端口后（Idea运行Spring项目报错 “Web server failed to start. Port 8080 was already in use.”（一）），重启后，又发现新的错误

APPLICATION FAILED TO START 　 Description: 　 Web server failed to start. Port 8080 was already in use. 　 Action: 　 Identify and stop the process that's listening on port 8080 or configure this application to listen on another port. 　 Process finished with exit code 0

【原因】：tomcat 9.0服务自动启动

【如何发现】：偶然发现，理性分析

【如何修复】：关闭tomcat服务自动启动就好了.
如何关闭（启动）自动启动的tomcat进程