启动Tomcat服务器报错： Several ports (8005, 8080, 8009) required by Tomcat v5.5 Server at localhost are alr

启动Tomcat服务器报错：

Several ports (8005, 8080, 8009) required by Tomcat v5.5 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).

原因：端口8005, 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。

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.

方法2：修改tomcat默认端口号
修改Tomcat的配置文件
找到tomcat安装路径，C:\XX\apache-tomcat-8.5.9\conf文件夹下的server.xml或者打开eclipse工作空间下的Servers/server.xml文件修改端口号。

例如将

 < Server port="8005" shutdown="SHUTDOWN" >  
 改为
 < Server port="8015"</font> shutdown="SHUTDOWN" >

<Connector URIEncoding="UTF-8" connectionTimeout="20000" port="8080" protocol="HTTP/1.1"
redirectPort="8443"/>
改为
<Connector URIEncoding="UTF-8" connectionTimeout="20000" port="8088" protocol="HTTP/1.1"
redirectPort="8443"/>

总之是将配置文件中端口号为8005，8080，8009的端口改为一个没有被占用的端口，重启服务器即可。