Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-12-06T14:33:56.476|[system-service,,] [main] [ERROR] o.s.b.SpringApplication - Application run failed
java.lang.IllegalStateException: Failed to execute ApplicationRunner
    at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:785)
    at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:772)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:345)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1343)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1332)
    at com.message.SystemApplication.main(SystemApplication.java:10)
Caused by: org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to XXXXXXXXXX:6379
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$ExceptionTranslatingConnectionProvider.translateException(LettuceConnectionFactory.java:1671)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$ExceptionTranslatingConnectionProvider.getConnection(LettuceConnectionFactory.java:1579)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getNativeConnection(LettuceConnectionFactory.java:1365)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getConnection(LettuceConnectionFactory.java:1348)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getSharedConnection(LettuceConnectionFactory.java:1089)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getConnection(LettuceConnectionFactory.java:421)
    at org.springframework.data.redis.core.RedisConnectionUtils.fetchConnection(RedisConnectionUtils.java:193)
    at org.springframework.data.redis.core.RedisConnectionUtils.doGetConnection(RedisConnectionUtils.java:144)
    at org.springframework.data.redis.core.RedisConnectionUtils.getConnection(RedisConnectionUtils.java:105)
    at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:209)
    at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:189)
    at org.springframework.data.redis.core.RedisTemplate.hasKey(RedisTemplate.java:768)
    at com.message.sys.core.config.ApplicationRunnerImpl.run(ApplicationRunnerImpl.java:33)
    at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:782)
    ... 5 common frames omitted
Caused by: io.lettuce.core.RedisConnectionException: Unable to connect to m1.bu97.net:6379
    at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:78)
    at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:56)
    at io.lettuce.core.AbstractRedisClient.getConnection(AbstractRedisClient.java:330)
    at io.lettuce.core.RedisClient.connect(RedisClient.java:216)
    at org.springframework.data.redis.connection.lettuce.StandaloneConnectionProvider.lambda$getConnection$1(StandaloneConnectionProvider.java:115)
    at java.util.Optional.orElseGet(Optional.java:267)
    at org.springframework.data.redis.connection.lettuce.StandaloneConnectionProvider.getConnection(StandaloneConnectionProvider.java:115)
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$ExceptionTranslatingConnectionProvider.getConnection(LettuceConnectionFactory.java:1577)
    ... 17 common frames omitted
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: xxxxxxxxxx:6379
Caused by: java.net.ConnectException: Connection refused: no further information
    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
    at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
    at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330)
    at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:707)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493)
    at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
    at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
    at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
    at java.lang.Thread.run(Thread.java:748)

1.修改redis配置文件

1.1.找到redis配置文件vi /usr/local/redis/etc/redis.conf

1.2.修改 protected-mode yes 改为：protected-mode no

1.3.注释掉 #bin 127.0.0.1

1.4.修改redis.conf timeout 大于0

1.5.重启redis

2. 防火墙放行redis默认的6379端口

     2.1  修改防火墙,放行6379端口

firewall-cmd --zone=public --add-port=6379/tcp --permanent

 2.2  重启防火墙服务, 使 上述配置生效

firewall-cmd --reload

2.3 查看防火墙开发端口是否生效

firewall-cmd --list-all