Redis Basic Usage

Redis Benefits

• Unusually fast: Redis is very fast and can perform approximately 110000 setup operations per second, and 81,000 per second read operations.

• Support for rich data types: Redis support most developers already know data types such as lists, collections, sortable collections, hashes, and so on.

  This makes it easy to solve a variety of problems in your application because we know which issues to work with which data types are better addressed.

• Operations are atomic: All Redis operations are atomic, ensuring that when two customers access the Redis server at the same time, the updated values (the latest value) are obtained.

• Multiutility Tools: Redis is a multifunctional utility that can be used in many such as: cache, Message delivery queue (Redis native support publish/subscribe), in applications such as: Web application sessions, website page hits, etc. any short data;

Download page management tool: Https://redisdesktop.com/download

Redis uses:

1.redis user's password, port description information: redis.windows-service.conf;

2. Open the cmd window in the path where the file is located, or open the administrator mode Redis-server

3. Open CMD window in this window, Run command: redis-cli-h 127.0.0.1-p 6379-a Password Enter.

4. Operation Command:

quit--exit

exists key--whether there is a key to return an integer 1 indicating existence; Returns an integer 0 indicating that it does not exist.

Set key value--sets a key value

Get key--Gets the value corresponding to this key

Del Key--delete this key and return an integer of 1 to indicate the deletion was successful. Returning 0 indicates that the deletion failed.

Keys u*--means to get all keys starting with u

Dbsize--Indicates the number of keys in the current database. 、

Flushdb--Delete all keys in the currently selected database

Flushall--Delete all keys from all databases

Mget key1 Key2 ...-Get the key value in bulk, there is no comma in the middle of key.

Redis Hash:

5.hset

Description: Sets the value of the field field in the hash table key to value

Example: Hset wangifo name WL

Get: Hget wanglianginfo Name

6.hmset Batch Setup

Hgetall wanglianginfo: Get all.

Redis list:

Example: Lpush myusers Alibaba

Lpush myusers Baidu

Lpush myusers Tengxun

Pop-up: Lpop myusers: LIFO, pop-up Tengxun, followed by Baidu, and finally Alibaba

Enquiry: lindex myusers index:index myusers 0;

Multiple queries: Lrange key start stop

Modification: LSet Key index value

Delete: Itrim key start stop explanation, Start-stop keep this area, other deletions.

Redis Basic Usage