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Are there any ways to check whether a key exists with RedisTemplate?
or in other words, are there any equivalent of Redis exists command in RedisTemplate API?
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To check for a key existence, use HEXISTS for a specific field which returns 0 if the specified member does not exist. You could also use the HGET command. It returns a nil answer if the specified member does not exist.
If key does not exist, a new key holding a hash is created. If field already exists in the hash, it is overwritten.
The EXISTS command in Redis allows us to determine if a specified key exists in the database. The command will take the provided keys and check how many exist within the selected database. For example, the previous command returns (integer) 1 since only one key exists in the database.
Yes, you can use public Boolean hasKey(K key).
You can just search exists in redisTemplate javadoc
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