我是靠谱客的博主 昏睡小白菜，这篇文章主要介绍报错JedisDataException: ERR wrong number of arguments for ‘rpop‘ command，现在分享给大家，希望可以做个参考。
报错JedisDataException: ERR wrong number of arguments for ‘rpop’ command
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5//取单条 String str = redisTemplate.opsForList().rightPop(CACHE_KEY); //取多条 List<String> list = redisTemplate.opsForList().rightPop(CACHE_KEY, 5);
Springboot使用Redis使用opsForList().rightPop取单条的时候是正常的，取多条的时候报错如下：
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16redis.clients.jedis.exceptions.JedisDataException: ERR wrong number of arguments for 'rpop' command at redis.clients.jedis.Protocol.processError(Protocol.java:142) ~[jedis-3.8.0.jar:na] at redis.clients.jedis.Protocol.process(Protocol.java:176) ~[jedis-3.8.0.jar:na] at redis.clients.jedis.Protocol.read(Protocol.java:230) ~[jedis-3.8.0.jar:na] at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:352) ~[jedis-3.8.0.jar:na] at redis.clients.jedis.Connection.getBinaryMultiBulkReply(Connection.java:304) ~[jedis-3.8.0.jar:na] at redis.clients.jedis.BinaryJedis.rpop(BinaryJedis.java:1702) ~[jedis-3.8.0.jar:na] at org.springframework.data.redis.connection.jedis.JedisInvoker.lambda$just$5(JedisInvoker.java:130) ~[spring-data-redis-2.7.5.jar:2.7.5] at org.springframework.data.redis.connection.jedis.JedisConnection.lambda$doInvoke$2(JedisConnection.java:181) ~[spring-data-redis-2.7.5.jar:2.7.5] at org.springframework.data.redis.connection.jedis.JedisConnection.doWithJedis(JedisConnection.java:824) ~[spring-data-redis-2.7.5.jar:2.7.5] at org.springframework.data.redis.connection.jedis.JedisConnection.doInvoke(JedisConnection.java:165) ~[spring-data-redis-2.7.5.jar:2.7.5] at org.springframework.data.redis.connection.jedis.JedisConnection.lambda$new$0(JedisConnection.java:74) ~[spring-data-redis-2.7.5.jar:2.7.5] at org.springframework.data.redis.connection.jedis.JedisInvoker$Synchronizer.invoke(JedisInvoker.java:1018) ~[spring-data-redis-2.7.5.jar:2.7.5] at org.springframework.data.redis.connection.jedis.JedisInvoker.just(JedisInvoker.java:130) ~[spring-data-redis-2.7.5.jar:2.7.5] at org.springframework.data.redis.connection.jedis.JedisListCommands.rPop(JedisListCommands.java:284) ~[spring-data-redis-2.7.5.jar:2.7.5]
问题原因是redis版本小于6.2时并不支持该语法，而我本地的redis是3.05版本的。只有redis的版本大于等于6.2时，才支持rightPop(key, count)和leftPop(key, count)，不然就只支持单条取的rightPop(key)和leftPop(key)了。
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