信息: Initializing Spring DispatcherServlet 'spring-dispatcher'
2020-05-06 11:19:43.078 [http-nio-8080-exec-4] INFO org.springframework.web.servlet.DispatcherServlet -Initializing Servlet 'spring-dispatcher'
2020-05-06 11:19:45.622 [MLog-Init-Reporter] INFO com.mchange.v2.log.MLog -MLog clients using slf4j logging.
2020-05-06 11:19:45.727 [http-nio-8080-exec-4] INFO com.mchange.v2.c3p0.C3P0Registry -Initializing c3p0-0.9.5.2 [built 08-December-2015 22:06:04 -0800; debug? true; trace: 10]
Logging initialized using 'class org.apache.ibatis.logging.stdout.StdOutImpl' adapter.
2020-05-06 11:19:48.731 [http-nio-8080-exec-4] INFO org.springframework.web.servlet.DispatcherServlet -Completed initialization in 5647 ms
问一下上面这些是什么意思,哪里出错了