Tomcat启动报错Server Tomcat v8.0 Server at localhost was unable to start within 45 seconds. If the serve

Java Web项目启动调试时，提示此错误，以下图：web Server Tomcat v8.0 Server at localhost was unable to start within 45 seconds. If the server requires more time, try increasing the timeout in the server editor.数据库   这种状况

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