diff --git a/ip_tool/hua_chen_client.go b/ip_tool/hua_chen_client.go
index 833568e..bcfafa0 100644
--- a/ip_tool/hua_chen_client.go
+++ b/ip_tool/hua_chen_client.go
@@ -19,11 +19,10 @@ type HuaChenIpClient struct {
 	cache   ICacheAdapter
 }
 
-func NewHuaChenIpClient(appCode string, cache ICacheAdapter) *HuaChenIpClient {
+func NewHuaChenIpClient(appCode string) *HuaChenIpClient {
 	return &HuaChenIpClient{
 		AppCode: appCode,
 		Host:    "https://c2ba.api.huachen.cn",
-		cache:   cache,
 	}
 }
 
@@ -90,13 +89,19 @@ func (h *HuaChenIpClient) GetIpInfo(ip string) (res *ApiResult, err error) {
 	return &apiResult, nil
 }
 
-func (h *HuaChenIpClient) GetIpInfoFormCache(ctx context.Context, ip string, ttl time.Duration) (res *ApiResult, err error) {
-	getCache, err := h.cache.Get(ctx, h.ipKey(ip))
-	if err != nil {
-		return nil, errors.Wrapf(err, "获取缓存失败，ip:%s", ip)
-	}
-	if getCache != nil {
-		return getCache, nil
+func (h *HuaChenIpClient) Set(cache ICacheAdapter) {
+	h.cache = cache
+}
+
+func (h *HuaChenIpClient) GetIpInfoFormCache(ctx context.Context, ip string, opt ...time.Duration) (res *ApiResult, err error) {
+	if h.cache != nil {
+		res, err = h.cache.Get(ctx, h.ipKey(ip))
+		if err != nil {
+			return nil, errors.Wrapf(err, "获取缓存失败，ip:%s", ip)
+		}
+		if res != nil {
+			return res, nil
+		}
 	}
 	res, err = h.GetIpInfo(ip)
 	if err != nil {
@@ -109,9 +114,11 @@ func (h *HuaChenIpClient) GetIpInfoFormCache(ctx context.Context, ip string, ttl
 		return nil, errors.Wrapf(err, "无法将IP信息转换为JSON，ip:%s", ip)
 	}
 
-	err = h.cache.Set(ctx, h.ipKey(ip), string(infoJson), ttl)
-	if err != nil {
-		return nil, errors.Wrapf(err, "缓存ip:%s信息失败，", ip)
+	if len(opt) == 0 {
+		err = h.cache.Set(ctx, h.ipKey(ip), string(infoJson), opt[0])
+		if err != nil {
+			return nil, errors.Wrapf(err, "缓存ip:%s信息失败，", ip)
+		}
 	}
 	return
 }