问题描述：
Mac中MyEclipse启动Tomcat时8080端口被占用错误：
Several ports (8080, 8009) required by Tomcat v7.0 Server at localhost are 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 number(s).
解决办法：
打开终端，输入以下命令
lsof -i :8080
如果你被占用的端口不是8080，请修改命令中的参数。
该命令输出以下内容：
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
java 27132 kaige 41u IPv6 0x9d80e4a27fc1081b 0t0 TCP *:http-alt (LISTEN)
我的Mac上占用8080端口的进程ID是27132，所以我再将这个进程杀死
kill -9 27132
请根据你的进程ID来修改次命令的最后一个参数
然后再次启动MyEclipse中的Tomcat，可以正常启动了！