go redis 集合操作--sadd

￡神魔★判官ぃ 2022-05-24 04:04 283阅读 0赞

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

redigo API Reference  
[https://godoc.org/github.com/gomodule/redigo/redis][https_godoc.org_github.com_gomodule_redigo_redis]

[https_github.com_garyburd_redigo]: https://github.com/garyburd/redigo
[https_godoc.org_github.com_gomodule_redigo_redis]: https://godoc.org/github.com/gomodule/redigo/redis