一、问题
Several ports (8005, 8080, 8009) required by Tomcat v7.0 Server at localhost (2) 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).
这个问题是Tomcat的端口被占用，极大可能是你在上一个Tomcat服务器没关闭的时候又运行了一个。所以需要关闭一下Tomcat服务器，然后再启动。
二、解决
找到你的Tomcat服务器，然后双击下图图标，关闭tomcat。然后再去Eclipse重启
启动成功！