Solve the problem that port 8080 is occupied

Press win + R, then enter cmd, press Enter to enter the command window

Enter [ netstat -ano ] to view all used port numbers

Enter [ netstat -ano | findstr 8080 ] to see who is using 8080

Note the last few numbers it's pid

Enter [ taskkill -pid number (pid) -f ] and press Enter

This is done

If an error is reported that the occupation cannot be released,

Then just use the Run command window as administrator and that's it.