Java連結Redis時出現 “ERR Client sent AUTH, but no password is set” 異常的原因及解決辦法
【錯誤提示】
redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool
at 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 set
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.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)
【問題原因】
Redis伺服器沒有設定密碼，但用戶端向其發送了AUTH（authentication，身分識別驗證）請求。
【解決辦法】 確定Redis啟動時指定是哪個設定檔。
如上圖是 redis.windows.conf 檔案，用文本編輯工具開啟檔案，找到“requirepass”，去掉注釋設定密碼。
編輯完後儲存，重新啟動Redis，再運行程式，OK。
