Java链接Redis时出现 “ERR Client sent AUTH, but no password is set”

Java链接Redis时出现 “ERR Client sent AUTH, but no password is set” 异常的原因及解决办法。

【错误提示】

redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the poolat redis.clients.util.Pool.getResource(Pool.java:53)

at redis.clients.jedis.JedisPool.getResource(JedisPool.java:226)

at cn.hncu.RedisPool.getJedis(RedisPool.java:66)

at cn.hncu.RedisJava.main(RedisJava.java:15)

Caused by: redis.clients.jedis.exceptions.JedisDataException: ERR Client sent AUTH, but no password is setat 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.BinaryJedis.auth(BinaryJedis.java:2139)

at redis.clients.jedis.JedisFactory.makeObject(JedisFactory.java:108)

at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:868)

【问题原因】

Redis服务器没有设置密码，但客户端向其发送了AUTH（authentication，身份验证）请求。

【解决办法】

确定Redis启动时指定是哪个配置文件。

如上图是 redis.windows.conf 文件，用文本编辑工具打开文件，找到“requirepass”，去掉注释设置密码。

编辑完后保存，重新启动Redis，再运行程序，OK。