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code/allapp/allapp-go/utils/redisx/index.go

@@ -0,0 +1,40 @@
+package redisx
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"github.com/redis/go-redis/v9"
+)
+
+var (
+	Client *redis.Client
+)
+
+func Set(key string, value interface{}, expire time.Duration) error {
+	return Client.Set(context.Background(), key, value, expire).Err()
+}
+
+// Get 获取任意 key 的值，返回 string
+func Get(key string) (string, error) {
+	val, err := Client.Get(context.Background(), key).Result()
+	if errors.Is(err, redis.Nil) {
+		return "", nil
+	}
+	return val, err
+}
+
+// Delete 删除任意 key
+func Delete(key string) error {
+	return Client.Del(context.Background(), key).Err()
+}
+
+// Exists 判断 key 是否存在
+func Exists(key string) (bool, error) {
+	cnt, err := Client.Exists(context.Background(), key).Result()
+	if err != nil {
+		return false, err
+	}
+	return cnt > 0, nil
+}