mdbook

Redis is a software project that implements data structure servers. It is open-source, networked, in-memory, and stores keys with optional durability.

• home
• documentation
• commands
• github

注意:

• Redis Cluster only supports database zero
• redis 6.0 以后的新功能 ACL 访问控制列表:
  • A container for Access List Control commands 访问控制列表

docker

docker run -v /root/redis/conf:/usr/local/etc/redis -v /root/redis/data:/data -p 6379:6379 --name redis redis:6.2.6

k8s

redis.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: redis
  labels:
    app: redis
spec:
  replicas: 1
  selector:
    matchLabels:
      app: redis
  template:
    metadata:
      labels:
        app: redis
    spec:
      imagePullSecrets:
        - name: fly-reg
      containers:
        - name: redis
          image: fly.reg.com/redis:6.2.6
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 6379
          volumeMounts:
            - name: redis
              mountPath: /etc/localtime
              readOnly: true
      volumes:
        - name: redis
          hostPath:
            path: /etc/localtime
---
apiVersion: v1
kind: Service
metadata:
  name: redis
spec:
  type: NodePort
  selector:
    app: redis
  ports:
    - name: http
      port: 6379
      targetPort: 6379
      nodePort: 30003

commands

官网地址

# 测试 connect
redis-cli -h localhost -p 6379 ping

# 密码 测试 connect
redis-cli -h localhost -p 6379 -a password ping

# connect
redis-cli -h localhost -p 6379

# 密码 connect
redis-cli -h localhost -p 6379 -a password

# 默认连接 localhost 6379
redis-cli

# 按数据原有格式打印数据，不展示额外的类型信息;
# 显示中文
redis-cli --raw

# 连接后 认证
# localhost:6379> AUTH [username] password

# ACL
# redis 6.0 以后的新功能 A container for Access List Control commands 访问控制列表
# 默认用户 default ,设置不同用户并授予命令或数据权限
# localhost:6379> ACL USERS

# 切换数据库 index[0,15] 供16个库，默认连接0
# localhost:6379> select 1

# 显示当前数据库索引
# Return the number of keys in the currently-selected database
# localhost:6379> dbsize

redisjson

支持 JSON 的 redis rejson
home
github
java client github

docker and podman

docker run -v /root/redis/conf:/usr/local/etc/redis -v /root/redis/data:/data -p 6379:6379 --name rejson redislabs/rejson:2.0.6
podman run -v /root/redis/conf:/usr/local/etc/redis -v /root/redis/data:/data -p 6379:6379 --name rejson redislabs/rejson:2.0.6

rejson k8s

rejson.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: redisjson
  labels:
    app: redisjson
spec:
  replicas: 1
  selector:
    matchLabels:
      app: redisjson
  template:
    metadata:
      labels:
        app: redisjson
    spec:
      imagePullSecrets:
        - name: fly-reg
      containers:
        - name: redisjson
          image: fly.reg.com/redisjson:2.0.6
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 6379
          volumeMounts:
            - name: redisjson
              mountPath: /etc/localtime
              readOnly: true
      volumes:
        - name: redisjson
          hostPath:
            path: /etc/localtime
---
apiVersion: v1
kind: Service
metadata:
  name: redisjson
spec:
  type: NodePort
  selector:
    app: redisjson
  ports:
    - name: http
      port: 6379
      targetPort: 6379
      nodePort: 30004

redisjson commands

localhost:6379> JSON.SET doc $ '{"a":2,"b":3,"nested":{"a":4,"b":null}}'
OK

localhost:6379> get keys
(nil)

localhost:6379> dbsize
(integer) 1

localhost:6379> GET *
(nil)

localhost:6379> JSON.GET doc
"{\"a\":2,\"b\":3,\"nested\":{\"a\":4,\"b\":null}}"

localhost:6379> JSON.GET doc $..b
"[3,null]"

localhost:6379> JSON.GET doc ..a $..b
"{\"..a\":[2,4],\"$..b\":[3,null]}"

localhost:6379> JSON.GET doc ..a
"2"

localhost:6379> JSON.GET doc $..a
"[2,4]"

localhost:6379> JSON.GET doc $..a $..b
"{\"$..a\":[2,4],\"$..b\":[3,null]}"

jrejson

RedisJson java client
github
maven search

maven

<dependency>
  <groupId>com.redislabs</groupId>
  <artifactId>jrejson</artifactId>
  <version>1.5.0</version>
</dependency>

gradle

implementation 'com.redislabs:jrejson:1.5.0'

example

import redis.clients.jedis.Jedis;
import com.redislabs.modules.rejson.JReJSON;

...

 First get a connection
JReJSON client = new JReJSON("localhost", 6379);

 Setting a Redis key name _foo_ to the string _"bar"_, and reading it back
client.set("foo", "bar");
String s0 = (String) client.get("foo");

 Omitting the path (usually) defaults to the root path, so the call above to
 `get()` and the following ones // are basically interchangeable
String s1 = (String) client.get("foo", new Path("."));
String s2 = (String) client.get("foo", Path.ROOT_PATH);

 Any Gson-able object can be set and updated
client.set("obj", new Object());             // just an empty object
client.set("obj", null, new Path(".zilch"));
Path p = new Path(".whatevs");
client.set("obj", true, p);
client.set("obj", 42, p);
client.del("obj", p);
...