go redis 集合操作--sadd

redis的go语言包，我们使用官方推荐的redigo，https://github.com/garyburd/redigo

安装redigo

$ go get github.com/garyburd/redigo

redis set

set集合具有每个元素唯一性的特点。在redis中，可使用SADD命令操作：

SADD Example：

redis> SADD myset “Hello”

(integer) 1

redis> SADD myset “World”

(integer) 1

redis> SADD myset “World”

(integer) 0

redis> SMEMBERS myset

1) “World”
2) “Hello”

redis>

在 go中redis简单举例如下。

simple SADD

package main

import (
    "log"

    "github.com/garyburd/redigo/redis"
)


func main() {

    server := "127.0.0.1:6379"

    option := redis.DialPassword("123456")
    c, err := redis.Dial("tcp", server, option)
    if err != nil {
        log.Println("connect server failed:", err)
        return
    }

    defer c.Close()


    v, err := redis.Int64(c.Do("SADD", "myset", "10.8.37.98"))
    if err != nil {
        log.Println("SADD failed:", err)
        return
    }

    log.Println("value:", v)

}

批量添加

package main

import (
    "log"

    "github.com/garyburd/redigo/redis"
)


func main() {

    server := "127.0.0.1:6379"

    option := redis.DialPassword("123456")
    c, err := redis.Dial("tcp", server, option)
    if err != nil {
        log.Println("connect server failed:", err)
        return
    }

    defer c.Close()

    setKey := "myset"
    args := []interface{}{setKey}
    args = append(args, "10.1")
    args = append(args, "10.2")
    v, err := redis.Int64(c.Do("SADD", args...))
    if err != nil {
        log.Println("SADD failed:", err)
        return
    }

    log.Println("value:", v)

}

查看：

$ ./src/redis-cli -a 123456
127.0.0.1:6379> SMEMBERS myset
1) “10.2”
2) “10.1”
3) “world”
4) “good”
5) “10.8.37.98”
6) “today”
7) “day”
8) “hello”
127.0.0.1:6379>

参考

redigo
https://github.com/garyburd/redigo

redigo API Reference
https://godoc.org/github.com/gomodule/redigo/redis