feat: 增加空缓存实现的支持

default.go

@@ -0,0 +1,48 @@
+// Package cache ...
+//
+// Description : cache ...
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 2026-01-05 09:33
+package cache
+
+import (
+	"context"
+	"errors"
+
+	cacheAbstract "git.zhangdeman.cn/zhangdeman/cache/abstract"
+)
+
+var (
+	DefaultClient cacheAbstract.ICache = DefaultCache{}
+)
+
+type DefaultCache struct {
+}
+
+func (d DefaultCache) Exist(ctx context.Context, cacheInstanceFlag string, key string) (bool, error) {
+	return false, nil
+}
+
+func (d DefaultCache) TTL(ctx context.Context, cacheInstanceFlag string, key string) (int64, error) {
+	// 直接返回已过期
+	return -1, nil
+}
+
+func (d DefaultCache) Set(ctx context.Context, cacheInstanceFlag string, key string, value any, ttl int64) error {
+	// 设置成功
+	return nil
+}
+
+func (d DefaultCache) Get(ctx context.Context, cacheInstanceFlag string, key string) (any, error) {
+	return nil, errors.New("not found")
+}
+
+func (d DefaultCache) GetWithParse(ctx context.Context, cacheInstanceFlag string, key string, parseFunc cacheAbstract.ResultParseFunc) (any, error) {
+	return d.Get(ctx, cacheInstanceFlag, key)
+}
+
+func (d DefaultCache) Delete(ctx context.Context, cacheInstanceFlag string, key string) error {
+	return nil
+}