一、redis连接

引入包"github.com/go-redis/redis/v8"

var(

redisInstance *redis.Client

)

func init() {

redisI :=redis.NewClient(&redis.Options{

Addr:“http://192.168.90.86:6379”,

      Password:"123456", // 设置密码

      DB:0,  // use default DB

  })

redisInstance = redisI

}

func GetRedis() *redis.Client{

     return redisInstance

}

二、redis，string类型存取

var ctx = context.TODO()

/**

* 判断key是否存在

*/

func RedisExists(keystring) (bool,error) {

    client :=conn.GetRedis()

    if client !=nil{

        r,err := client.Exists(ctx,key).Result()

       if err ==nil {

            if r ==1 {

                    return true, nil

            }else{

                return false, nil

             }

        }

}

    return false, errors.New("查询key失败")

}

/**

* redis设置值

*/

func SetRedisCache(keystring,valueinterface{},durationtime.Duration)error {

client :=conn.GetRedis()

if client !=nil{

_,err := client.Set(ctx,key,value,duration).Result()

return err

}else{

return errors.New("redis连接失败")

}

}

/**

* redis获取值

*/

func GetRedisCache(keystring) (interface{},error) {

client :=conn.GetRedis()

if client !=nil{

    r,err := client.Get(ctx,key).Result()

    if err ==redis.Nil {

        return nil,nil

      }else if err !=nil {

        return nil,err

       }else {

            return r,nil

      }

    }else{

            return nil,errors.New("redis连接失败")

    }

}

/**

* 移除

*/

func ClearRedisCache(keystring)  {

        client :=conn.GetRedis()

        if client !=nil{

            client.Move(ctx,key,0)

        }    

}

三、docker启动redis

拉取镜像
docker pull redis:latest

//docker启动redis镜像

docker run --name my_redis -p 6379:6379 -d --restart=always redis:latest redis-server --appendonly yes --requirepass "123456"

//测试

redis-cli -h 192.168.90.86 -p 6379

10.249.91.86:6379> set text1 2

(error) NOAUTH Authentication required.

192.168.90.86:6379> auth 123456

OK

192.168.90.86:6379> set text1 2

OK

192.168.90.86:6379> keys *

1) "text1"

2) "text"

10.249.91.86:6379>