Jedis连接Redis模式异常DENIED

DENIED Redis is running in protected mode （保护模式）

异常现象

Exception in thread "main" redis.clients.jedis.exceptions.JedisDataException: DENIED Redis is running in protected mode because protected mode is enabled, no bind address was specified, no authentication password is requested to clients. In this mode connections are only accepted from the loopback interface. If you want to connect from external computers to Redis you may adopt one of the following solutions: 1) Just disable protected mode sending the command 'CONFIG SET protected-mode no' from the loopback interface by connecting to Redis from the same host the server is running, however MAKE SURE Redis is not publicly accessible from internet if you do so. Use CONFIG REWRITE to make this change permanent. 2) Alternatively you can just disable the protected mode by editing the Redis configuration file, and setting the protected mode option to 'no', and then restarting the server. 3) If you started the server manually just for testing, restart it with the '--protected-mode no' option. 4) Setup a bind address or an authentication password. NOTE: You only need to do one of the above things in order for the server to start accepting connections from the outside.
	at redis.clients.jedis.Protocol.processError(Protocol.java:127)
	at redis.clients.jedis.Protocol.process(Protocol.java:161)
	at redis.clients.jedis.Protocol.read(Protocol.java:215)
	at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:340)
	at redis.clients.jedis.Connection.getStatusCodeReply(Connection.java:239)
	at redis.clients.jedis.Jedis.set(Jedis.java:121)
	at cn.com.qihang.spring.boot.stater.redis.App.main(App.java:21)

问题分析

报错信息很长，但是主要是说redis开启了protected mode，这也是Redis3.2加入的新特性，开启保护模式的redis只允许本机登录，同样设置在配置文件redis.conf中

解决方法

方式一：直接编辑配置文件redis.conf

修改配置：

可以填密码也可以填no代表关闭，我们这里选择关闭保护模式，wq保存退出后再重启redis-server。

方式二：直接通过命令更改

1.进入redis的src目录下

输入：./redis-cli

将受保护模式选项设置为“no”，为了让服务器开始从外部接受连接

输入：config set protected-mode "no"

二、添加认证，设置密码

后来就查看配置发现redis.conf 该行（#requirepass foobared）也是注释的：

requirepass foobared

requirepass redis123456

再次验证