springboot redis为何不断在显示打开关闭连接？

Question

2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:51:57 [http-nio-1920-exec-7] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:52:00 [pool-2-thread-1] DEBUG org.springframework.session.data.redis.RedisSessionExpirationPolicy - Cleaning up sessions expiring at Mon Feb 12 11:52:00 CST 2018
2018-02-12 11:52:00 [pool-2-thread-1] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:52:00 [pool-2-thread-1] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection
2018-02-12 11:52:00 [pool-2-thread-1] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Opening RedisConnection
2018-02-12 11:52:00 [pool-2-thread-1] DEBUG org.springframework.data.redis.core.RedisConnectionUtils - Closing Redis Connection

刚配置好基本框架，但是看日志，发现啥也不干，基本是每5，6秒就打开关闭，会不会对性能有影响？

Answer 1

spring-boot-redis内部为我们封装管理了连接池；性能那块也不用担心。

http://blog.golearns.org/2015...
http://blog.csdn.net/wanghuiq...

Answer 2

这是定期删除过期的数据，类似于垃圾回收，没问题的

Answer 3

我遇到的问题是，ssm架构项目移植到springboot架构后好像效率慢了很多。。