今天博主尝试用本地的Java代码去连接远程的redis,
使用的组件是 Jedis, 这个项目在github上呼声最高。
Github地址: https://github.com/xetorthio/jedis
组件的pom
redis.clients
jedis
2.8.1
jar
compile
代码如下:
package com.miaozhen.Jedis;
import redis.clients.jedis.Jedis;
public class FirstRedis {
public static void main(String[] args) {
Jedis jedis = new Jedis("10.202.4.22");
String value = jedis.get("string1");
System.out.println(value);
}
}
结果爆出以下错误:
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:117)
at redis.clients.jedis.Protocol.process(Protocol.java:151)
at redis.clients.jedis.Protocol.read(Protocol.java:205)
at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:297)
at redis.clients.jedis.Connection.getBinaryBulkReply(Connection.java:216)
at redis.clients.jedis.Connection.getBulkReply(Connection.java:205)
at redis.clients.jedis.Jedis.get(Jedis.java:101)
at com.miaozhen.Jedis.FirstRedis.main(FirstRedis.java:10)
解决方案已经在上面的错误提示给出了:
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.
解析:在redis-cli 中执行 'CONFIG SET protected-mode no'
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.
解析:修改redis的配置文件 或者 增加
protected-mode no
3) If you started the server manually just for testing, restart it with the '--protected-mode no' option.
解析:启动的时候接参数 '--protected-mode no'
4) Setup a bind address or an authentication password.
解析:设置bind addres 或者验证密码