支持access_token过期

B3WeChat/Utils/InOutMessageUtil.cs

@@ -20,13 +20,23 @@ namespace BWP.B3WeChat.Utils
 
     static string token;
 
+
+    static DateTime? getTokenTime;
+
+    static readonly TimeSpan expiredSpan = new TimeSpan(2, 0, 0);
     static string TOKEN
     {
       get
       {
+        if (getTokenTime.HasValue &&  ((TimeSpan)(DateTime.Now - getTokenTime.Value)) >= expiredSpan)
+        {
+          token = string.Empty;
+        }
+
         if (string.IsNullOrEmpty(token))
         {
           token = GetToken();
+          getTokenTime = DateTime.Now;
         }
         return token;
       }
@@ -90,7 +100,7 @@ namespace BWP.B3WeChat.Utils
       SendTemplateMessageResult result = new SendTemplateMessageResult();
       MeassageBody body = new MeassageBody();
       body.touser = openID;
-      body.template_id = templateID;
+      body.template_id = templateID;   
       body.url = url;
       body.data = dic;
       string postData = jsonHelper.Serialize(body);