首先

这篇文章提供了使用go-redis实现Redis中以下三种数据结构的设置和获取的示例代码。

• String

• List

Hash(map, dictionary)

环境

macOS: 10.13.6 高山
Redis 服务器版本：4.0.11
Go 版本：go1.11

源代码

package main

import (
    "fmt"

    "github.com/go-redis/redis"
)

func main() {
    client := redis.NewClient(&redis.Options{
        Addr:     "localhost:6379",
        Password: "", // no password set
        DB:       0,  // use default DB
    })
    fmt.Println("Redis client:", client)

    fmt.Println("---------------------------------------------------")
    fmt.Println("Start StringGetSet")
    StringGetSet(client)
    fmt.Println("---------------------------------------------------")
    fmt.Println("Start ListGetSet")
    ListGetSet(client)
    fmt.Println("---------------------------------------------------")
    fmt.Println("Start HashGetSet")
    HashGetSet(client)
    fmt.Println("---------------------------------------------------")
}

func StringGetSet(client *redis.Client) {
    key := "StringGetSet_Key"
    // Set
    err := client.Set(key, "StringGetSet_Val", 0).Err()
    if err != nil {
        fmt.Println("redis.Client.Set Error:", err)
    }

    // Get
    val, err := client.Get(key).Result()
    if err != nil {
        fmt.Println("redis.Client.Get Error:", err)
    }
    fmt.Println(val)
}

func ListGetSet(client *redis.Client) {
    key := "ListGetSet_Key"
    // Set
    listVal := []string{"val1", "va2", "val3"}
    err := client.RPush(key, listVal).Err()
    if err != nil {
        fmt.Println("redis.Client.RPush Error:", err)
    }

    // Get
    // Get by lrange
    lrangeVal, err := client.LRange(key, 0, -1).Result()
    if err != nil {
        fmt.Println("redis.Client.LRange Error:", err)
    }
    fmt.Println(lrangeVal)
    // Get by lindex
    lindexVal, err := client.LIndex(key, 2).Result()
    if err != nil {
        fmt.Println("redis.Client.LIndex Error:", err)
    }
    fmt.Println(lindexVal)
}

func HashGetSet(client *redis.Client) {
    key := "HashGetSet_Key"
    // Set
    for field, val := range map[string]string{"field1": "val1", "field2": "val2"} {
        fmt.Println("Inserting", "field:", field, "val:", val)
        err := client.HSet(key, field, val).Err()
        if err != nil {
            fmt.Println("redis.Client.HSet Error:", err)
        }
    }

    // Get
    // HGet(key, field string) *StringCmd
    hgetVal, err := client.HGet(key, "field1").Result()
    if err != nil {
        fmt.Println("redis.Client.HGet Error:", err)
    }
    fmt.Println(hgetVal)

    // HGetAll
    hgetallVal, err := client.HGetAll(key).Result()
    if err != nil {
        fmt.Println("redis.Client.HGetAll Error:", err)
    }
    // fmt.Println("reflect.TypeOf(hgetallVal):", reflect.TypeOf(hgetallVal)) // map[string]string
    fmt.Println(hgetallVal)
}

运行结果

使用Docker官方镜像启动Redis。

docker run -d -p 6379:6379 --name myredis redis

运行Go代码

go run main.go

执行结果

Redis client: Redis<localhost:6379 db:0>
---------------------------------------------------
Start StringGetSet
StringGetSet_Val
---------------------------------------------------
Start ListGetSet
[val1 va2 val3]
val3
---------------------------------------------------
Start HashGetSet
Inserting field: field1 val: val1
Inserting field: field2 val: val2
val1
map[field1:val1 field2:val2]
---------------------------------------------------

请参阅

• https://godoc.org/github.com/go-redis/redis

http://blog.sojiro.me/blog/2014/07/27/rediss-data-type-and-usage/