Eclipse------启动Server时出现弹窗Server at localhost was unable to start within 45 seconds.

弹窗详细信息：

Server Tomcat v8. Server at localhost was unable to start within  seconds. If the server requires more time, try increasing the timeout in the server editor.

解决方法：

我们找到当前工程的workplace目录，然后按下面的操作：
找到workspace\.metadata\.plugins\org.eclipse.wst.server.core\servers.xml文件。
<servers>
<server auto-publish-setting="" auto-publish-time="" configuration-id="/Servers/Tomcat v7.0 Server at localhost-config" 
deployDir="wtpwebapps" hostname="localhost" id="Tomcat v6.0 Server at localhost" name="Tomcat v7.0 Server at localhost" 
runtime-id="Apache Tomcat v7.0" server-type="org.eclipse.jst.server.tomcat.60" server-type-id="org.eclipse.jst.server.tomcat.70" 
start-timeout="" stop-timeout="" testEnvironment="true" timestamp=""/>
</servers>

把 其中的start-timeout="" 改为  start-timeout="" 或者更长，根据不同同学的工程大小来设置。
最后重启eclipse就可以了。

转载：

https://www.cnblogs.com/huzi007/p/5601195.html