mybatis 二级缓存集成 redis的问题

Question

mybatis 集成了二级缓存，正常都是可以使用的，但是把redis 服务停了，
查询就不好使了，报异常

nested exception is org.apache.ibatis.exceptions.PersistenceException: \n### Error querying database.  Cause: org.springframework.data.redis.RedisConnectionFailureException: Cannot get Jedis connection; nested exception is redis.clients.jedis.exceptions.JedisConnectionException: java.net.ConnectException: Connection refused (Connection refused)\n### Cause: org.springframework.data.redis.RedisConnectionFailureException: Cannot get Jedis connection; nested exception is redis.clients.jedis.exceptions.JedisConnectionException: java.net.ConnectException: Connection refused (Connection refused)

个人理解，缓存不好使，正常来说不应该查询数据库么？求大牛给指导一下！

Answer 1

他是先查redis没有再查数据库；除非你自己做了优化