启动Tomcat 7.0 报 Server Tomcat v7.0 was unable to start within 45 seconds. If the server requires more time, try increasing the timeout in the server editor.

解决 

修改 workspace\.metadata\.plugins\org.eclipse.wst.server.core\servers.xml文件。 
把其中的start-timeout="45" 改为  start-timeout="300" 或者更长，根据工程大小来设置。最后重启eclipse。

tart-timeout：启动超时