How to get data from redis

The two main ways to get data from Redis are: GET command: Get the value of a single key. MGET command: Get the values ​​of multiple keys at once.

Get data from Redis

Method:

From There are two main methods to obtain data in Redis:

• GET command: is used to obtain the value of a single key.
• MGET command: Used to get the values ​​of multiple keys at one time.

Syntax:

GET key

##MGET key1 key2 ... keyN

Where:

• key is the key to get the value from.
• key1, key2, ... keyN are the multiple keys to get the value from.

Return value:

• GET: Returns the value of a single key, or ## if the key does not exist #nil.
MGET:
• Returns an array containing multiple key values. If a key does not exist, the corresponding element in the array is nil.

Example:

<code class="redis">// 使用 GET 命令获取单个键值
GET name

// 输出：
"John"

// 使用 MGET 命令获取多个键值
MGET name age city

// 输出：
["John", "30", "New York"]</code>

Note: The

key must already exist to get the value.

• The value of a key can be any Redis data type (string, list, set, etc.).
• If the value of a key is a binary-safe string, it will not be decoded when fetched.

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