遇到的问题：

Redis health check failed 
org.springframework.data.redis.connection.PoolException: Could not get a resource from the pool; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1:6379
    at org.springframework.data.redis.connection.lettuce.LettucePoolingConnectionProvider.getConnection(LettucePoolingConnectionProvider.java:109)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getNativeConnection(LettuceConnectionFactory.java:1197)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getConnection(LettuceConnectionFactory.java:1178)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getSharedReactiveConnection(LettuceConnectionFactory.java:952)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getReactiveConnection(LettuceConnectionFactory.java:429)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getReactiveConnection(LettuceConnectionFactory.java:94)
    at reactor.core.publisher.MonoSupplier.call(MonoSupplier.java:85)
    at reactor.core.publisher.FluxSubscribeOnCallable$CallableSubscribeOnSubscription.run(FluxSubscribeOnCallable.java:225)
    at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:68)
    at reactor.core.scheduler.SchedulerTask.call(SchedulerTask.java:28)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:750)
Caused by: io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1:6379
    at io.lettuce.core.RedisConn

我启动redis 无论是否设置密码都能启动成功
我检查一下配置文件和redis.config文件发现都没有任何问题

启动redis服务后，输入密码能连接成功，不输入密码也可以连接成功，当我启动程序后就报错误我查阅了许多资料都不行。

解决方案：我遇到的问题只需要重新设置一下密码就可以解决了。

这个命令手敲会出错，我把命令放在下面了 可以根据自己的需要调整密码
redis-cli -h 127.0.0.1 -p 6379 -a 123456

 ping

config set requirepass 123456