在尝试用80端口启动springboot应用时，console报错如下：
Description:
The Tomcat connector configured to listen on port 80 failed to start. The port may already be in use or the connector may be misconfigured.
Action:
Verify the connector's configuration, identify and stop any process that's listening on port 80, or configure this application to listen on another port.经排查，80端口并没有被占用，后来在StackOverflow上得知普通用户无法使用1024以下的端口号
文中也提供了几种解决方法