Golang入门系列（七）Redis的使用

func GetRedisClientPool() *Client{
    redisdb := NewClient(&Options{
        Addr: "127.0.0.1:6379",
        Password: "",
        DB: 0,
        PoolSize: 5,})

    pong, err := redisdb.Ping().Result()
    if err != nil {
        fmt.Println(pong, err)
    }
    return redisdb
}

// 连接池测试
func connectPoolTest() {
    fmt.Println("-----------------------welcome to connect Pool Test-----------------------")
    client :=GetRedisClientPool()
    wg := sync.WaitGroup{}
    wg.Add(10)

    for i := 0; i <10; i++ {
        go func() {
            defer wg.Done()

            for j := 0; j <1000; j++ {
                client.Set(fmt.Sprintf("name%d", j), fmt.Sprintf("xys%d", j), 0).Err()
                client.Get(fmt.Sprintf("name%d", j)).Result()
            }

            fmt.Printf("PoolStats, TotalConns: %d, IdleConns: %d\n", client.PoolStats().TotalConns, client.PoolStats().IdleConns);
        }()
    }

    wg.Wait()
}

package main

import (
    "fmt"
    . "github.com/go-redis/redis"
    . "redisDemo/models"
    "time"
    "sync"
)

func main() {
    fmt.Println("-----------------------welcome to redisdemo-----------------------")
    //StringDemo()
    //ListDemo()
    //HashDemo()
    connectPoolTest()
}

func StringDemo() {
    fmt.Println("-----------------------welcome to StringDemo-----------------------")
    redisClient:=GetRedisClient()
    if redisClient ==nil{
        fmt.Errorf("StringDemo redisClient is nil")
        return
    }

    name := "张三"
    key :="name:zhangsan"
    redisClient.Set(key , name,1 * time.Second)
    val := redisClient.Get(key)
    if val == nil {
        fmt.Errorf("StringDemo get error")
    }
    fmt.Println("name", val)
}

func ListDemo(){
    fmt.Println("-----------------------welcome to ListDemo-----------------------")
    redisClient:=GetRedisClient()
    if redisClient == nil {
        fmt.Errorf("ListDemo redisClient is nil")
        return
    }
    articleKey := "article"
    result,err:=redisClient.RPush(articleKey, "a","b","c").Result() //在名称为 key 的list尾添加一个值为value的元素
    if err!=nil {
        fmt.Println(err)
        return
    }
    fmt.Println("result:",result)

    result,err = redisClient.LPush(articleKey, "d").Result() //在名称为 key 的list头添加一个值为value的元素
    if err!=nil {
        fmt.Println(err)
        return
    }
    fmt.Println("result:",result)

    length, err := redisClient.LLen(articleKey).Result()
    if err != nil {
        fmt.Println("ListDemo LLen is nil")
    }
    fmt.Println("length: ", length) // 长度

    mapOut,err1:=redisClient.LRange(articleKey,0,100).Result()
    if err1!=nil {
        fmt.Println(err1)
        return
    }
    for inx, item := range mapOut {
        fmt.Printf("\n %s:%s", inx, item)
    }
}

func HashDemo() {
    fmt.Println("-----------------------welcome to HashDemo-----------------------")
    redisClient := GetRedisClient()
    if redisClient == nil {
        fmt.Errorf("HashDemo redisClient is nil")
        return
    }
    article := Article{18, "测试文章内容22222", "测试文章内容22222测试文章内容22222测试文章内容22222", 10, 0}
    articleKey := "article:18"

    redisClient.HMSet(articleKey, ToStringDictionary(&article))
    mapOut := redisClient.HGetAll(articleKey).Val()
    for inx, item := range mapOut {
        fmt.Printf("\n %s:%s", inx, item)
    }
    fmt.Print("\n")

    redisClient.HSet(articleKey, "Content", "测试文章内容")
    mapOut = redisClient.HGetAll(articleKey).Val()
    for inx, item := range mapOut {
        fmt.Printf("\n %s:%s", inx, item)
    }
    fmt.Print("\n")

    view, err := redisClient.HIncrBy(articleKey, "Views", 1).Result()
    if err != nil {
        fmt.Printf("\n HIncrBy error=%s ", err)
    } else {
        fmt.Printf("\n HIncrBy Views=%d ", view)
    }
    fmt.Print("\n")

    mapOut = redisClient.HGetAll(articleKey).Val()
    for inx, item := range mapOut {
        fmt.Printf("\n %s:%s", inx, item)
    }
    fmt.Print("\n")

}

func GetRedisClient() *Client {
    redisdb := NewClient(&Options{
        Addr:     "127.0.0.1:6379",
        Password: "", // no password set
        DB:       0,                 // use default DB
    })

    pong, err := redisdb.Ping().Result()
    if err != nil {
        fmt.Println(pong, err)
    }
    return redisdb
}

func GetRedisClientPool() *Client{
    redisdb := NewClient(&Options{
        Addr: "127.0.0.1:6379",
        Password: "",
        DB: 0,
        PoolSize: 5,})

    pong, err := redisdb.Ping().Result()
    if err != nil {
        fmt.Println(pong, err)
    }
    return redisdb
}

// 连接池测试
func connectPoolTest() {
    fmt.Println("-----------------------welcome to connect Pool Test-----------------------")
    client :=GetRedisClientPool()
    wg := sync.WaitGroup{}
    wg.Add(10)

    for i := 0; i <10; i++ {
        go func() {
            defer wg.Done()

            for j := 0; j <1000; j++ {
                client.Set(fmt.Sprintf("name%d", j), fmt.Sprintf("xys%d", j), 0).Err()
                client.Get(fmt.Sprintf("name%d", j)).Result()
            }

            fmt.Printf("PoolStats, TotalConns: %d, IdleConns: %d\n", client.PoolStats().TotalConns, client.PoolStats().IdleConns);
        }()
    }

    wg.Wait()
}