tomcat启动时报异常java.lang.Exception: Socket bind failed

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异常如下：
严重: Error starting endpoint
java.lang.Exception: Socket bind failed: [730048] ?????????×???(Э?é????????)????í??
at org.apache.tomcat.util.net.AprEndpoint.init(AprEndpoint.java:646)
at org.apache.tomcat.util.net.AprEndpoint.start(AprEndpoint.java:753)
at org.apache.coyote.http11.Http11AprProtocol.start(Http11AprProtocol.java:137)
at org.apache.catalina.connector.Connector.start(Connector.java:1080)
at org.apache.catalina.core.StandardService.start(StandardService.java:531)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:593)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
2012-8-3 11:36:13 org.apache.catalina.startup.Catalina start
严重: Catalina.start:
LifecycleException:  service.getName(): "Catalina";  Protocol handler start failed: java.lang.Exception: Socket bind failed: [730048] ?????????×???(Э?é????????)????í??
at org.apache.catalina.connector.Connector.start(Connector.java:1087)
at org.apache.catalina.core.StandardService.start(StandardService.java:531)
at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:593)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
2012-8-3 11:36:13 org.apache.catalina.startup.Catalina start

平时运行的项目挺好的，不过今天一直报异常，启动tomcat就报错。找了半天才找到原因啊。
原因：tomcat端口号被占用。
方法：
开始–运行–cmd 进入命令提示符 输入 netstat –ano|findstr “8080”
可以结束使用端口号的进程，也可以修改tomcat端口。

netstat -a 查看进程及其占用的端口号
kill 根据进程ID杀死占用8080端口的进程

kill之后再用netstat -a 查看一下，如果没有杀掉，
改用kill -9 强制杀