golang-redis之list類型簡單操作

1：安裝redigo

go get github.com/garyburd/redigo/redis

2：連接redis(通過ip端口)

import （
    "github.com/garyburd/redigo/redis"
)
c, err := redis.Dial("tcp", "192.168.2.225:6379")
if err != nil {
    fmt.Println("connect to redis err", err.Error())
    return
}
defer c.Close()

3：命令執行

n,err := c.Do("lpush","key","value")  //寫
result,err := redis.Values(c.Do("lpop","key"))//讀

4：list類型常見操作

rpush(key, value)：在名稱爲key的list尾添加一個值爲value的元素
lpush(key, value)：在名稱爲key的list頭添加一個值爲value的 元素
llen(key)：返回名稱爲key的list的長度
lrange(key, start, end)：返回名稱爲key的list中start至end之間的元素
ltrim(key, start, end)：截取名稱爲key的list
lindex(key, index)：返回名稱爲key的list中index位置的元素
lset(key, index, value)：給名稱爲key的list中index位置的元素賦值
lrem(key, count, value)：刪除count個key的list中值爲value的元素
lpop(key)：返回並刪除名稱爲key的list中的首元素
rpop(key)：返回並刪除名稱爲key的list中的尾元素
blpop(key1, key2,… key N, timeout)：lpop命令的block版本。
brpop(key1, key2,… key N, timeout)：rpop的block版本。
rpoplpush(srckey, dstkey)：返回並刪除名稱爲srckey的list的尾元素，並將該元素添加到名稱爲dstkey的list的頭部

5：示例
5.1：lpush示例

_,err = c.Do("lpush","mylist","ofo","mobike","foo")
if err != nil   {
    fmt.Println("redis lpush failed",err.Error())
}

5.2：rpush示例

_,err = c.Do("rpush","mylist","bluegogo","xiaolan","xiaoming")
if err != nil{
    fmt.Println("redis rpush failed",err.Error())
}

5.3：llen示例

num,err := c.Do("llen","mylist")
if err != nil{
    fmt.Println("mylist get len err",err.Error())
}else{
    fmt.Println("mylist's len is ",num)
}

5.4：lrange示例

values,err := redis.Values(c.Do("lrange","mylist",0,10))
if err != nil{
    fmt.Println("lrange err",err.Error())
}
fmt.Printf("mylist is:")
for _,v := range values{
    fmt.Printf(" %s ",v.([]byte))
}
fmt.Println()

5.5：ltrim示例

_, err = c.Do("ltrim", "mylist", 0, 4)
if err != nil {
    fmt.Println("ltrim error", err.Error())
} else {
    values, err = redis.Values(c.Do("lrange", "mylist", 0, 4))
    if err != nil {
        fmt.Println("ltrim failed:", err.Error())
    }
    fmt.Printf("ltrim mylist is:")
    for _, v := range values {
        fmt.Printf("%s ", v.([]byte))
    }
    fmt.Printf("\n")
}

5.6：lindex示例

val, err := c.Do("lindex", "mylist", 2)
if err != nil {
    fmt.Println("lindex error:", err.Error())
} else {
    fmt.Printf("lindex get result :%s\n", val)
}

5.7：rpoplpush示例

_, err = c.Do("rpoplpush", "mylist", "mybike")
if err != nil {
    fmt.Println("rpoplpush failed:", err.Error())
} else {
    values, err = redis.Values(c.Do("lrange", "mylist", 0, 10))
    if err != nil {
        fmt.Println("lrange failed:", err.Error())
    }
    for _, v := range values {
        fmt.Printf("rpoplpush %s\n", v.([]byte))
    }

    values, err = redis.Values(c.Do("lrange", "mybike", 0, 10))
    if err != nil {
        fmt.Println("lrange failed:", err.Error())
    }
    for _, v := range values {
        //fmt.Println(string(v.([]byte)))
        fmt.Printf("rpoplpush %s\n", v.([]byte))
    }
}

5.8：lset示例

_, err = c.Do("lset", "mylist", 2, "mysql")
if err != nil {
    fmt.Println("lset error:", err.Error())
}
val, err = c.Do("lindex", "mylist", 2)
if err != nil {
    fmt.Println("lset error:", err.Error())
} else {
    fmt.Printf("lset get result:%s\n", val)
}

5.9：lrem示例

_, err = c.Do("lrem", "mylist", 1, "mysql")
if err != nil {
    fmt.Println("lrem error", err.Error())
} else {
    values, err = redis.Values(c.Do("lrange", "mylist", 0, 10))
    if err != nil {
        fmt.Println("ltrim failed:", err.Error())
    }
    for _, v := range values {
        fmt.Printf("lrem mylist: %s", v.([]byte))
    }
    fmt.Printf("\n")
}

5.10：lpop示例

_, err = c.Do("lpop", "mylist")
if err != nil {
    fmt.Println("lpop failed:", err.Error())
} else {
    values, err = redis.Values(c.Do("lrange", "mylist", 0, 10))
    if err != nil {
        fmt.Println("lpop failed:", err.Error())
    }
    fmt.Printf("lpop mylist :")
    for _, v := range values {
        fmt.Printf("lpop mylist %s", v.([]byte))
    }
    fmt.Printf("\n")
}

5.11：rpop示例

_, err = c.Do("rpop", "mylist")
if err != nil {
    fmt.Println("rpop failed", err.Error())
} else {
    values, err = redis.Values(c.Do("lrange", "mylist", 0, 10))
    if err != nil {
        fmt.Println("rpop failed:", err.Error())
    }
    fmt.Printf("rpop mylist :")
    for _, v := range values {
        //fmt.Println(string(v.([]byte)))
        fmt.Printf("lpop mylist %s", v.([]byte))
    }
    fmt.Printf("\n")
}

5.12：blpop示例

res, err := c.Do("blpop", "mylist", 10)
if err != nil {
    fmt.Println("blpop error")
} else {
    fmt.Printf("blpop from mylist get:%s\n", res)
}

res, err = c.Do("blpop", "tmpbike", 10)
if err != nil {
    fmt.Println("blpop time out")
} else {
    fmt.Println("blpop from tmpbike get:", res)
}

5.13：brpop示例

res, err = c.Do("brpop", "tmpbike", 10)
if err != nil {
    fmt.Println("brpop error")
} else {
    fmt.Printf("brpop from tmpbike get :%s\n", res)
}

res, err = c.Do("brpop", "mybike", 10)
if err != nil {
    fmt.Println("brpop time out")
} else {
    fmt.Printf("brpop from mybike get:%s ", res)

}

6：結果

完整代碼路徑