This application has no explicit mapping for /error, so you are seeing this as a fallback.
Wed Dec 14 16:35:25 CST 2016
There was an unexpected error (type=Not Found, status=404).
No message available
spring-boot會自動加載啟動類所在包下及其子包下的所有組件.
所以springboot啟動類所在包的路徑要在最外層,或者根層下
