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刚才通过MyEclipse5.5启动Tomcat，结果错误弹出对话框，大意是配置错误，查了下原因。启动Application Server得用JDK（a full JDK installation），而不是JRE。

JDK Vertural Machine must specify a full JDK installation.
Specifying a JRE will result in an startup exception.

可是我装了的就是JDK6，而不是JRE6。

解决办法：

在MyEclipse - 窗口 - 首选项 - MyEclipse - Application Server - Tomcat - Tomcat5.x - JDK 里添加Tomcat JDK，在右边选 Add...，弹出的对话框里的JRE主目录里定位到安装的JDK的目录（JRE是它的子文件夹），点确定。

至此，问题本来已经彻底解决，不想出了一个意外。

在Servers视图里，选中Tomcat 5.x，Run Server。不幸，控制台抛出大量异常。

2008-8-22 23:52:57 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\java\java6\bin;D:\java\apache-tomcat-5.5.26\bin
2008-8-22 23:52:57 org.apache.coyote.http11.Http11BaseProtocol init
严重: Error initializing endpoint
java.net.BindException: Address already in use: JVM_Bind:8080
    at org.apache.tomcat.util.net.PoolTcpEndpoint.initEndpoint(PoolTcpEndpoint.java:298)
    at org.apache.coyote.http11.Http11BaseProtocol.init(Http11BaseProtocol.java:139)
    at org.apache.catalina.connector.Connector.initialize(Connector.java:1017)
    at org.apache.catalina.core.StandardService.initialize(StandardService.java:578)
    at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:782)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:504)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:524)
    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.load(Bootstrap.java:267)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
2008-8-22 23:52:57 org.apache.catalina.startup.Catalina load
严重: Catalina.start
LifecycleException:  Protocol handler initialization failed: java.net.BindException: Address already in use: JVM_Bind:8080
    at org.apache.catalina.connector.Connector.initialize(Connector.java:1019)
    at org.apache.catalina.core.StandardService.initialize(StandardService.java:578)
    at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:782)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:504)
    at org.apache.catalina.startup.Catalina.load(Catalina.java:524)
    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.load(Bootstrap.java:267)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)
2008-8-22 23:52:57 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 578 ms
2008-8-22 23:52:57 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2008-8-22 23:52:57 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.5.26
2008-8-22 23:52:57 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
2008-8-22 23:52:58 org.apache.catalina.core.ApplicationContext log
信息: org.apache.webapp.balancer.BalancerFilter: init(): ruleChain: [org.apache.webapp.balancer.RuleChain: [org.apache.webapp.balancer.rules.URLStringMatchRule: Target string: News / Redirect URL: http://www.cnn.com], [org.apache.webapp.balancer.rules.RequestParameterRule: Target param name: paramName / Target param value: paramValue / Redirect URL: http://www.yahoo.com], [org.apache.webapp.balancer.rules.AcceptEverythingRule: Redirect URL: http://jakarta.apache.org]]
2008-8-22 23:52:58 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2008-8-22 23:52:58 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2008-8-22 23:52:58 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2008-8-22 23:52:58 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2008-8-22 23:52:58 org.apache.coyote.http11.Http11BaseProtocol 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:298)
    at org.apache.tomcat.util.net.PoolTcpEndpoint.startEndpoint(PoolTcpEndpoint.java:313)
    at org.apache.coyote.http11.Http11BaseProtocol.start(Http11BaseProtocol.java:151)
    at org.apache.coyote.http11.Http11Protocol.start(Http11Protocol.java:76)
    at org.apache.catalina.connector.Connector.start(Connector.java:1090)
    at org.apache.catalina.core.StandardService.start(StandardService.java:457)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
    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:295)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
2008-8-22 23:52:58 org.apache.catalina.startup.Catalina start
严重: Catalina.start:
LifecycleException:  service.getName(): "Catalina";  Protocol handler start failed: java.net.BindException: Address already in use: JVM_Bind:8080
    at org.apache.catalina.connector.Connector.start(Connector.java:1097)
    at org.apache.catalina.core.StandardService.start(StandardService.java:457)
    at org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
    at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
    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:295)
    at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
2008-8-22 23:52:58 org.apache.catalina.startup.Catalina start
信息: Server startup in 1141 ms

第一个异常java.net.BindException: Address already in use: JVM_Bind:8080，猜测应该是端口已经被占用了吧。于是搜了一下，下载一个叫TCPView的小软件。不出所料，Tomcat的默认端口8080果然被占了——那个进程竟然是QQMusic.exe。我晕哦，QQMusic.exe居然占了6个端口。8080端口的状态为LISTENING。今天第一次用QQMusic，竟然就给人添乱！

关掉QQMusic.exe，重启Tomcat，运行成功，没有抛出异常，输出日志为：

2008-8-22 23:59:39 org.apache.catalina.core.AprLifecycleListener lifecycleEvent
信息: The Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: D:\java\java6\bin;D:\java\apache-tomcat-5.5.26\bin
2008-8-22 23:59:39 org.apache.coyote.http11.Http11BaseProtocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2008-8-22 23:59:39 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 562 ms
2008-8-22 23:59:40 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2008-8-22 23:59:40 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/5.5.26
2008-8-22 23:59:40 org.apache.catalina.core.StandardHost start
信息: XML validation disabled
2008-8-22 23:59:40 org.apache.catalina.core.ApplicationContext log
信息: org.apache.webapp.balancer.BalancerFilter: init(): ruleChain: [org.apache.webapp.balancer.RuleChain: [org.apache.webapp.balancer.rules.URLStringMatchRule: Target string: News / Redirect URL: http://www.cnn.com], [org.apache.webapp.balancer.rules.RequestParameterRule: Target param name: paramName / Target param value: paramValue / Redirect URL: http://www.yahoo.com], [org.apache.webapp.balancer.rules.AcceptEverythingRule: Redirect URL: http://jakarta.apache.org]]
2008-8-22 23:59:40 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2008-8-22 23:59:40 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2008-8-22 23:59:40 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2008-8-22 23:59:40 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
2008-8-22 23:59:40 org.apache.coyote.http11.Http11BaseProtocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2008-8-22 23:59:41 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2008-8-22 23:59:41 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/15  config=null
2008-8-22 23:59:41 org.apache.catalina.storeconfig.StoreLoader load
信息: Find registry server-registry.xml at classpath resource
2008-8-22 23:59:41 org.apache.catalina.startup.Catalina start
信息: Server startup in 1906 ms

Tomcat是正常运行了，不过让人郁闷的是，QQMusic.exe进程依然运行，而且占了两个端口，过了几分钟剩一个了，状态是FIN_WAIT1，占用端口为3654，远程地址192.24.57.59.broad.qz.fj.dynamic.163data.com.cn:12146。再过了三四分钟，QQMusic.exe终于全部终止。顺便看了一下，TM.exe也有7个进程。

不过，那条最长的信息里，竟然有CNN，Yahoo以及Jakarta的主页，有点小意外。