Maven Aggregation Engineering Tomcat plugin started without starting Protocolhandler ["http-bio-8081"]

Starting Protocolhandler ["http-bio-8081"] cannot be displayed, there are generally three reasons:

(1) The database is not connected;

(2) The registration center is not connected (I use zookeeper);

(3) MyBatis reverse engineering automatic generation of mapper errors, such as multiple generation.

The above reasons in the absence of log4j log case, will not error, that is, show all normal starting Protocolhandler ["http-bio-8081"] This sentence does not show.

The reason I went wrong was that the registry was not connected at the time, and the server was started and the web side started. If you start the Web side first, the Web side starts to error.

Maven Aggregation Engineering Tomcat plugin started without starting Protocolhandler ["http-bio-8081"]