golang redis连接池实现

配置文件：redis_config.ini

[default_redis_read]
host = 192.168.1.xxx:6379
password = xxxxx
max_idle = 50
max_active = 100
idle_timeout = 20

[default_redis_write]
host = 192.168.1.235:6379
password = xxx
max_idle = 50
max_active = 100
idle_timeout = 20


[api_redis]
host = 192.168.1.235:6379
password = xxx
max_idle = 50
max_active = 100
idle_timeout = 20

自定义多个redis链接

package config

type RedisDatabase struct {
    Password    string
    Host        string
    Database    string
    MaxIdle string
    MaxActive string
    MaxAIdleTimeoutctive string
    Prefix      string
}

//多数据库配置
func BuildRedisConfgs() (RedisDatabaseMap map[string]RedisDatabase) {
    return map[string]RedisDatabase{
        "search_r": {
            Host: Get("default_redis_read.host").String(),
            Password: Get("default_redis_read.password").String(),
            MaxIdle: Get("default_redis_read.max_idle").String(),
            MaxActive: Get("default_redis_read.max_active").String(),
        },
        "search_w": {
            Host: Get("default_redis_write.host").String(),
            Password: Get("default_redis_write.password").String(),
            MaxIdle: Get("default_redis_read.max_idle").String(),
            MaxActive: Get("default_redis_read.max_active").String(),
        },
        "api_redis": {
            Host: Get("api_redis.host").String(),
            Password: Get("api_redis.password").String(),
            MaxIdle: Get("api_redis.max_idle").String(),
            MaxActive: Get("api_redis.max_active").String(),
        },
    }
}

redis连接池实现：

package gredis

import (
    "github.com/gomodule/redigo/redis"
    "search_server/pkg/config"
    "time"
)


type ichuntRedis struct {
    RedisList map[string]*redis.Pool
}

var ichuntRedis_ = &ichuntRedis{}

func Conn(connection string) (redis.Conn){

    return ichuntRedis_.RedisList[connection].Get()
}

var writeConn, readConn *redis.Pool

func Setup() (err error) {
    ichuntRedis_.RedisList = make(map[string]*redis.Pool,0)
    RedisDatabaseMap := config.BuildRedisConfgs()
    for redisKey,redisConfig := range RedisDatabaseMap{
        ichuntRedis_.RedisList[redisKey],err = getConn(redisConfig.Host, redisConfig.Password)
        if err != nil{
            panic(err)
        }
    }
    return nil
}

//格式化成字符串
func String( a interface{},err error) (string,error) {
    return redis.String(a,err)
}

func getConn(writeHost, password string) (pool *redis.Pool, err error) {
    maxIdle, _ := config.Get("redis.max_idle").Int()
    maxActive, _ := config.Get("redis.max_active").Int()
    pool = &redis.Pool{
        MaxIdle:   maxIdle,
        MaxActive: maxActive,
        Dial: func() (redis.Conn, error) {
            c, err := redis.Dial("tcp", writeHost)
            if err != nil {
                return nil, err
            }
            if password != "" {
                if _, err := c.Do("AUTH", password); err != nil {
                    c.Close()
                    return nil, err
                }
            }
            return c, err
        },
        TestOnBorrow: func(c redis.Conn, t time.Time) error {
            _, err := c.Do("PING")
            return err
        },
    }
    return
}

调用方式：

redisConn :=gredis.Conn("search_r")
defer func(){
  redisConn.Close()
}()