Springboot非本地连接虚拟机的Redis失败_springboot lettuceconnectionfactory 判断是否连接失败

出现错误：

org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to 192.168.44.129:6379

	at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$ExceptionTranslatingConnectionProvider.translateException(LettuceConnectionFactory.java:1534)
	at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$ExceptionTranslatingConnectionProvider.getConnection(LettuceConnectionFactory.java:1442)
	at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getNativeConnection(LettuceConnectionFactory.java:1228)
	at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$SharedConnection.getConnection(LettuceConnectionFactory.java:1211)
	at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getSharedConnection(LettuceConnectionFactory.java:975)
	at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory.getConnection(LettuceConnectionFactory.java:360)
	at org.springframework.data.redis.core.RedisConnectionUtils.doGetConnection(RedisConnectionUtils.java:134)
	at org.springframework.data.redis.core.RedisConnectionUtils.getConnection(RedisConnectionUtils.java:97)
	at org.springframework.data.redis.core.RedisConnectionUtils.getConnection(RedisConnectionUtils.java:84)
	Caused by: io.lettuce.core.RedisConnectionException: Unable to connect to 192.168.44.129:6379
	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:242)
	at io.lettuce.core.RedisClient.connect(RedisClient.java:206)
	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:1440)
	... 75 more
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解决问题：

关闭Redis
打开redis-cli, 输入

shutdown
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看到

退出成功

修改配置文件
找到redis的配置文件，一般在/usr/local/redis/目录下，使用vim打开配置文件

sudo vim redis.conf #根据文件名自行输入
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然后输入密码

搜索需要修改的配置，“ / ”为搜索

/protected-mode
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输入i 然后将protected-mode yes 修改为 protected-mode no

同理修改requirepass *******这里“ * ”作为密码

然后注释掉bind

保存配置文件
点击ESC键后输入

：wq!
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关闭虚拟机的防火墙

systemctl stop firewalld.service
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重启Redis
使用指定配置文件启动redis

./bin/redis-server redis.conf
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连接远程redis

redis-cli -h 你的Redis所在主机的ip地址 -p 端口 -a 密码
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