“在本地主机上启动Tomcat服务器7遇到了一个问题”

Trying configure tomcat in my eclipse but "Port 8080 required by Tomcat v7.0 Server at localhost is 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)". i tried to set up tomcat environment several times but it hitting me with this error any thing i need to do in my eclipse?Trying configure tomcat in my eclipse but "Port