How to Change Db

[AlvinQinwen]

please helpe me tell How to change db

[AlvinQinwen]

import (
    "log"
    "time"

    "github.com/gomodule/redigo/redis"
    "github.com/mna/redisc"
)

var RedisClient redis.Conn

func InitRedisConnect() {

    // create the cluster
    cluster := redisc.Cluster{
        StartupNodes: []string{
            "172.19.182.6:6379",
            "172.19.182.7:6379",
            "172.19.182.8:6379",

            "172.19.182.9:6379",
            "172.19.182.10:6379",
            "172.19.182.11:6379",
        },
        DialOptions: []redis.DialOption{
            redis.DialConnectTimeout(5 * time.Second),
            redis.DialPassword("Admin,123"),
        },
        CreatePool: createPool,
    }
    //defer cluster.Close()

    // initialize its mapping
    if err := cluster.Refresh(); err != nil {
        log.Fatalf("Refresh failed: %v", err)
    }

    conn := cluster.Get()

    rc, err := redisc.RetryConn(conn, 3, 100*time.Millisecond)
    if err != nil {
        log.Fatalf("RetryConn failed: %v", err)
    }

    RedisClient = rc
}

// createPool 创建一个连接池
func createPool(addr string, opts ...redis.DialOption) (*redis.Pool, error) {
    return &redis.Pool{
        MaxIdle:     5,
        MaxActive:   10,
        IdleTimeout: time.Minute,
        Dial: func() (redis.Conn, error) {
            return redis.Dial("tcp", addr, opts...)
        },
        TestOnBorrow: func(c redis.Conn, t time.Time) error {
            _, err := c.Do("PING")
            return err
        },
    }, nil
}

// GetRedisConn 获取一个新的redis链接句柄 todo 待测试
func GetRedisConn(dbNo int) redis.Conn {
    conn := RedisClient
    conn.Do("SELECT", dbNo)
    return conn
}