Problem description: start Tomcat and set port 80. Port 80 is occupied and cannot be started.
Solution: for example, if you already have a solution on the same network, type netstat-ano in cmd.exe and you can see that port 80 is occupied by the process, and then stop the process service in the task manager.
Intermediate problem: I have encountered this problem twice. For the first time, a process in http occupies 80, but the task manager displays System, the final discovery is a process of the http protocol occupies (the process of discovery is also known on the Internet search, specific can refer to: http://www.bkjia.com/ OS /201111/111269.html login, the process of explicit stop is not stop, only in cmd.exe to use net stop http to stop, finally solved smoothly. The second time, when I solved the problem through the solution, I found that the subversion version was used to control the port. Before I started Tomcat, I submitted my project, so I find this service and stop it.
Note: If you set the subversion service to manually start and stop it in the service, you need to manually start the service next time before using version control.