【go语言开发】redis简单使用

本文主要介绍redis安装和使用。首先安装redis依赖库，这里是v8版本；然后连接redis，完成基本配置；最后测试封装的工具类

文章目录

• 安装redis依赖库
• 连接redis和配置
• 工具类封装
• 代码测试

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参考文件：

• Yaml文件配置，Config使用
• Log日志封装
• 常用工具类封装

安装redis依赖库

命令行安装redis

go get github.com/go-redis/redis/v8

连接redis和配置

首先创建了一个 Redis 客户端，并连接到本地 Redis 服务器（默认端口为 6379）。连接完成后，使用Ping函数测试连接是否成功。

package coreimport ("context""fmt""github.com/go-redis/redis/v8""time")// https://zhuanlan.zhihu.com/p/637537337// https://blog.csdn.net/qq_44237719/article/details/128920821var Redis *RedisClienttype RedisClient struct {client *redis.Clientctxcontext.Context}// InitRedis 初始化redisfunc InitRedis() {redisConfig := Config.Redisclient := redis.NewClient(&redis.Options{Addr: fmt.Sprintf("%s:%d", redisConfig.Host, redisConfig.Port),Password: redisConfig.Password,DB: redisConfig.Db,})redisClient := &RedisClient{client: client,ctx:context.Background(),}Redis = redisClient_, err := client.Ping(client.Context()).Result()if err != nil {LOG.Println("redis连接失败！")return}LOG.Println("redis连接成功！")}

工具类封装

/*------------------------------------ 字符 操作 ------------------------------------*/// Set 设置 key的值func (this *RedisClient) Set(key, value string) bool {result, err := this.client.Set(this.ctx, key, value, 0).Result()if err != nil {LOG.Println(err)return false}return result == "OK"}// SetEX 设置 key的值并指定过期时间func (this *RedisClient) SetEX(key, value string, ex time.Duration) bool {result, err := this.client.Set(this.ctx, key, value, ex).Result()if err != nil {LOG.Println(err)return false}return result == "OK"}// Get 获取 key的值func (this *RedisClient) Get(key string) (bool, string) {result, err := this.client.Get(this.ctx, key).Result()if err != nil {LOG.Println(err)return false, ""}return true, result}// GetSet 设置新值获取旧值func (this *RedisClient) GetSet(key, value string) (bool, string) {oldValue, err := this.client.GetSet(this.ctx, key, value).Result()if err != nil {LOG.Println(err)return false, ""}return true, oldValue}// Incr key值每次加一 并返回新值func (this *RedisClient) Incr(key string) int64 {val, err := this.client.Incr(this.ctx, key).Result()if err != nil {LOG.Println(err)}return val}// IncrBy key值每次加指定数值 并返回新值func (this *RedisClient) IncrBy(key string, incr int64) int64 {val, err := this.client.IncrBy(this.ctx, key, incr).Result()if err != nil {LOG.Println(err)}return val}// IncrByFloat key值每次加指定浮点型数值 并返回新值func (this *RedisClient) IncrByFloat(key string, incrFloat float64) float64 {val, err := this.client.IncrByFloat(this.ctx, key, incrFloat).Result()if err != nil {LOG.Println(err)}return val}// Decr key值每次递减 1 并返回新值func (this *RedisClient) Decr(key string) int64 {val, err := this.client.Decr(this.ctx, key).Result()if err != nil {LOG.Println(err)}return val}// DecrBy key值每次递减指定数值 并返回新值func (this *RedisClient) DecrBy(key string, incr int64) int64 {val, err := this.client.DecrBy(this.ctx, key, incr).Result()if err != nil {LOG.Println(err)}return val}// Del 删除 keyfunc (this *RedisClient) Del(key string) bool {result, err := this.client.Del(this.ctx, key).Result()if err != nil {return false}return result == 1}// Expire 设置 key的过期时间func (this *RedisClient) Expire(key string, ex time.Duration) bool {result, err := this.client.Expire(this.ctx, key, ex).Result()if err != nil {return false}return result}/*------------------------------------ list 操作 ------------------------------------*/// LPush 从列表左边插入数据，并返回列表长度func (this *RedisClient) LPush(key string, date ...interface{}) int64 {result, err := this.client.LPush(this.ctx, key, date).Result()if err != nil {LOG.Println(err)}return result}// RPush 从列表右边插入数据，并返回列表长度func (this *RedisClient) RPush(key string, date ...interface{}) int64 {result, err := this.client.RPush(this.ctx, key, date).Result()if err != nil {LOG.Println(err)}return result}// LPop 从列表左边删除第一个数据，并返回删除的数据func (this *RedisClient) LPop(key string) (bool, string) {val, err := this.client.LPop(this.ctx, key).Result()if err != nil {LOG.Println(err)return false, ""}return true, val}// RPop 从列表右边删除第一个数据，并返回删除的数据func (this *RedisClient) RPop(key string) (bool, string) {val, err := this.client.RPop(this.ctx, key).Result()if err != nil {fmt.Println(err)return false, ""}return true, val}// LIndex 根据索引坐标，查询列表中的数据func (this *RedisClient) LIndex(key string, index int64) (bool, string) {val, err := this.client.LIndex(this.ctx, key, index).Result()if err != nil {LOG.Println(err)return false, ""}return true, val}// LLen 返回列表长度func (this *RedisClient) LLen(key string) int64 {val, err := this.client.LLen(this.ctx, key).Result()if err != nil {LOG.Println(err)}return val}// LRange 返回列表的一个范围内的数据，也可以返回全部数据func (this *RedisClient) LRange(key string, start, stop int64) []string {vales, err := this.client.LRange(this.ctx, key, start, stop).Result()if err != nil {LOG.Println(err)}return vales}// LRem 从列表左边开始，删除元素data， 如果出现重复元素，仅删除 count次func (this *RedisClient) LRem(key string, count int64, data interface{}) bool {_, err := this.client.LRem(this.ctx, key, count, data).Result()if err != nil {fmt.Println(err)}return true}// LInsert 在列表中 pivot 元素的后面插入 datafunc (this *RedisClient) LInsert(key string, pivot int64, data interface{}) bool {err := this.client.LInsert(this.ctx, key, "after", pivot, data).Err()if err != nil {LOG.Println(err)return false}return true}/*------------------------------------ set 操作 ------------------------------------*/// SAdd 添加元素到集合中func (this *RedisClient) SAdd(key string, data ...interface{}) bool {err := this.client.SAdd(this.ctx, key, data).Err()if err != nil {LOG.Println(err)return false}return true}// SCard 获取集合元素个数func (this *RedisClient) SCard(key string) int64 {size, err := this.client.SCard(this.ctx, "key").Result()if err != nil {LOG.Println(err)}return size}// SIsMember 判断元素是否在集合中func (this *RedisClient) SIsMember(key string, data interface{}) bool {ok, err := this.client.SIsMember(this.ctx, key, data).Result()if err != nil {LOG.Println(err)}return ok}// SMembers 获取集合所有元素func (this *RedisClient) SMembers(key string) []string {es, err := this.client.SMembers(this.ctx, key).Result()if err != nil {LOG.Println(err)}return es}// SRem 删除 key集合中的 data元素func (this *RedisClient) SRem(key string, data ...interface{}) bool {_, err := this.client.SRem(this.ctx, key, data).Result()if err != nil {LOG.Println(err)return false}return true}// SPopN 随机返回集合中的 count个元素，并且删除这些元素func (this *RedisClient) SPopN(key string, count int64) []string {vales, err := this.client.SPopN(this.ctx, key, count).Result()if err != nil {LOG.Println(err)}return vales}/*------------------------------------ hash 操作 ------------------------------------*/// HSet 根据 key和 field字段设置，field字段的值func (this *RedisClient) HSet(key, field, value string) bool {err := this.client.HSet(this.ctx, key, field, value).Err()if err != nil {return false}return true}// HGet 根据 key和 field字段，查询field字段的值func (this *RedisClient) HGet(key, field string) string {val, err := this.client.HGet(this.ctx, key, field).Result()if err != nil {LOG.Println(err)}return val}// HMGet 根据key和多个字段名，批量查询多个 hash字段值func (this *RedisClient) HMGet(key string, fields ...string) []interface{} {vales, err := this.client.HMGet(this.ctx, key, fields...).Result()if err != nil {panic(err)}return vales}// HGetAll 根据 key查询所有字段和值func (this *RedisClient) HGetAll(key string) map[string]string {data, err := this.client.HGetAll(this.ctx, key).Result()if err != nil {LOG.Println(err)}return data}// HKeys 根据 key返回所有字段名func (this *RedisClient) HKeys(key string) []string {fields, err := this.client.HKeys(this.ctx, key).Result()if err != nil {LOG.Println(err)}return fields}// HLen 根据 key，查询hash的字段数量func (this *RedisClient) HLen(key string) int64 {size, err := this.client.HLen(this.ctx, key).Result()if err != nil {LOG.Println(err)}return size}// HMSet 根据 key和多个字段名和字段值，批量设置 hash字段值func (this *RedisClient) HMSet(key string, data map[string]interface{}) bool {result, err := this.client.HMSet(this.ctx, key, data).Result()if err != nil {LOG.Println(err)return false}return result}// HSetNX 如果 field字段不存在，则设置 hash字段值func (this *RedisClient) HSetNX(key, field string, value interface{}) bool {result, err := this.client.HSetNX(this.ctx, key, field, value).Result()if err != nil {LOG.Println(err)return false}return result}// HDel 根据 key和字段名，删除 hash字段，支持批量删除func (this *RedisClient) HDel(key string, fields ...string) bool {_, err := this.client.HDel(this.ctx, key, fields...).Result()if err != nil {LOG.Println(err)return false}return true}// HExists 检测 hash字段名是否存在func (this *RedisClient) HExists(key, field string) bool {result, err := this.client.HExists(this.ctx, key, field).Result()if err != nil {LOG.Println(err)return false}return result}

代码测试

func TestRedis() {core.Redis.Set("test", "value1")if ok, s := core.Redis.Get("test"); ok {core.LOG.Println("test: ", s)}core.Redis.SetEX("test2", "value2", 10*time.Minute)if okEx, sEx := core.Redis.Get("test2"); okEx {core.LOG.Println("test2: ", sEx)}}