Several ports (8080, 8009) required by Tomcat v7.0 Server at localhost are already in use. The serve
一 异常来源：启动Tomcat服务器报错：
Several ports (8080, 8009) required by Tomcat v7.0 Server at localhost are 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).
二异常分析：
端口 8080, 8009被占用了。可能是在打开Tomcat的情况下关闭了Eclipse，或是Eclipse非正常关闭，导致先前的Tomcat没有被关闭，端口占用。或是其他软件占用了tomcat的端口号。
三 解决方案：
方法1：杀掉占用端口的软件。
打开任务管理器，找到java虚拟机相关的进程javaw.exe，将它结束掉。如果问题没有解决，可按下图操作。
如果没有这个进程，那可能是其他软件占用了端口。
或者：
在开始菜单->运行->cmd->输入 netstat -ano 命令，可以查看哪个进程占用了8080和8009端口，找到占用端口软件的PID，然后在任务管理器找到对应PID的软件，关闭结束该进程即可。如果任务管理器中没有显示PID列，需要设置，查看---》选择列---》勾选“PID（进程标识符）”。
在任务管理器中找的4976对应的进程，结束该进程后重启Eclipse中Tomcat即可
方法2：修改tomcat默认端口号。
修改Tomcat的配置文件。
例如：C:/tomcat5.5.25/conf/server.xml
<Connector port="8080" maxHttpHeaderSize="8192"
maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true" />
Connector 节点，将port="8080"中的端口改为一个没有被占用的端口。
参见：http://www.tuicool.com/articles/jInQFrU
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