Caused by: java.lang.IllegalArgumentException: No Spring Session store is configured: set the 'spring.session.store-type' property
at org.springframework.boot.autoconfigure.session.SessionAutoConfiguration$SessionRepositoryValidator.checkSessionRepository(SessionAutoConfiguration.java:105) ~[spring-boot-autoconfigure-1.5.6.RELEASE.jar:1.5.6.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_111]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_111]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_111]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_111]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:366) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:311) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:134) ~[spring-beans-4.3.10.RELEASE.jar:4.3.10.RELEASE]
... 23 common frames omitted
大概的意思是：
發現session store type使用來存放session的存儲方式，目前Spring boot中只支持Redis方式。 由於本應用暫無需將session放入redis的需求，故這裏就可以將session store type設置爲none.
這裏我們將此配置信息放入application.properites之中：
# default-store in spring session. it will be set in redis only outside.
spring.session.store-type=none
再次啓動，成功。
如果使用redis存儲session:
application.properties配置：spring.session.store-type=redis