when I use mvn running tomcat ,with the following command:
mvn tomcat:run

I can access the web application after the embedded tomcat finishing start, but can't see any log info.

and , I deploy the war file to a single tomcat ,start and run, the log can be displayed in console.

I add slf4j-api,slf4j-log4j,log4j these dependencies with version 1.6.1.