From b6762f11ef88412cfddc388d78f664a746d05906 Mon Sep 17 00:00:00 2001
From: yangyl12345 <yangyl971227@gmail.com>
Date: Mon, 25 Nov 2024 22:18:24 +0800
Subject: [PATCH] Update default_access_token.go
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微信获取稳定版token，只有不等于空字符串的情况下才会返回access_token信息，未空的情况，继续调去微信服务
---
 credential/default_access_token.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/credential/default_access_token.go b/credential/default_access_token.go
index 00ad481..bcebb19 100644
--- a/credential/default_access_token.go
+++ b/credential/default_access_token.go
@@ -130,7 +130,9 @@ func (ak *StableAccessToken) GetAccessTokenContext(ctx context.Context) (accessT
 	// 先从cache中取
 	accessTokenCacheKey := fmt.Sprintf("%s_stable_access_token_%s", ak.cacheKeyPrefix, ak.appID)
 	if val := ak.cache.Get(accessTokenCacheKey); val != nil {
-		return val.(string), nil
+		if accessToken = val.(string); accessToken != "" {
+			return
+		}
 	}
 
 	// cache失效，从微信服务器获取