spring session 加载的时候一些配置问题

启动springboot时候的错误信息：

An attempt was made to call the method org.springframework.boot.autoconfigure.session.RedisSessionConfiguration$SpringBootRedisHttpSessionConfiguration.setCleanupCron(Ljava/lang/String;)V but it does not exist. Its class, org.springframework.boot.autoconfigure.session.RedisSessionConfiguration$SpringBootRedisHttpSessionConfiguration, is available from the following locations: jar:file:/C:/Users/wwty/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.0.5.RELEASE/spring-boot-autoconfigure-2.0.5.RELEASE.jar!/org/springframework/boot/autoconfigure/session/RedisSessionConfiguration$SpringBootRedisHttpSessionConfiguration.class It was loaded from the following location: file:/C:/Users/wwty/.m2/repository/org/springframework/boot/spring-boot-autoconfigure/2.0.5.RELEASE/spring-boot-autoconfigure-2.0.5.RELEASE.jar Action: Correct the classpath of your application so that it contains a single, compatible version of org.springframework.boot.autoconfigure.session.RedisSessionConfiguration$SpringBootRedisHttpSessionConfiguration

这个错误需要在  配置文件中添加：

spring.session.store-type = none

session store type使用来存放session的存储方式，目前Spring boot中只支持Redis方式。 由于本应用暂无需将session放入redis的需求，故这里就可以将session store type设置为none.

额， 莫名其妙、