求助各位大神

[昔别一展鲲鹏意]

2017-08-19 19:42:48.494 INFO 10072 --- [ main] biljc.controller.App : Starting App on xujun-bachlor with PID 10072 (D:\workspace\SpringBoot\spring-boot\target\classes started by 浮点in D:\workspace\SpringBoot\spring-boot)
2017-08-19 19:42:48.497 INFO 10072 --- [ main] biljc.controller.App : No active profile set, falling back to default profiles: default
2017-08-19 19:42:48.625 INFO 10072 --- [ main] s.c.a.AnnotationConfigApplicationContext : Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@80169cf: startup date [Sat Aug 19 19:42:48 GMT+08:00 2017]; root of context hierarchy
2017-08-19 19:42:49.503 INFO 10072 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2017-08-19 19:42:49.516 INFO 10072 --- [ main] biljc.controller.App : Started App in 1.252 seconds (JVM running for 1.603)
2017-08-19 19:42:49.517 INFO 10072 --- [ Thread-2] s.c.a.AnnotationConfigApplicationContext : Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@80169cf: startup date [Sat Aug 19 19:42:48 GMT+08:00 2017]; root of context hierarchy
2017-08-19 19:42:49.518 INFO 10072 --- [ Thread-2] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown

我搭建了简单的maven项目之后，用springboot启动时出了问题，启动不了内置的tomcat，启动后总是自动停止，这是怎么回事啊