eclipse run on server出现了错误信息.求急!!

我创建了一个jspr的网页,其它服务器都弄好了,但到最后run on server时出现了错误信息如下：
Several ports(8005,8080,8009)required by tomcat v5.5 Server@localhost are already in use.the server may already be running in another process,or a system process may be using the port.
请问该怎么解决这个问题啊？