eclipse+tomcat 每次tomcat启动都会出现异常

在eclipse中启动tomcat时，异常信息如下
2006-7-20 11:08:54 org.apache.coyote.http11.Http11Protocol start
严重: Error starting endpoint
java.net.BindException: Address already in use: JVM_Bind:8080
at org.apache.tomcat.util.net.PoolTcpEndpoint.initEndpoint(PoolTcpEndpoint.java:302)
at org.apache.tomcat.util.net.PoolTcpEndpoint.startEndpoint(PoolTcpEndpoint.java:319)
at org.apache.coyote.http11.Http11Protocol.start(Http11Protocol.java:217)
at org.apache.coyote.tomcat5.CoyoteConnector.start(CoyoteConnector.java:1436)
at org.apache.catalina.core.StandardService.start(StandardService.java:528)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:2343)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:297)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:398)
2006-7-20 11:08:54 org.apache.catalina.startup.Catalina start
严重: Catalina.start: 
LifecycleException:  Protocol handler start failed: java.net.BindException: Address already in use: JVM_Bind:8080
at org.apache.coyote.tomcat5.CoyoteConnector.start(CoyoteConnector.java:1438)
at org.apache.catalina.core.StandardService.start(StandardService.java:528)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:2343)
at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:297)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:398)