"WeChat ?? ??? ??: ?? ????? ??"??? AccessToken(???? ?????)? ?? ??? ??????.

?? ?? ???? ?? ?? ?????? AccessToken? ???? ??? ?? ?????? ???? ?? ?? AccessToken? ?? ???? ???? ???. ?:

var accessToken = AccessTokenContainer.TryGetAccessToken(appId, appSecret);

?? appId ? appSecret? ????? ??? ? ??? ??? ?? ????:

var accessToken = AccessTokenContainer.GetAccessToken(_appId);

?? ?? ? accessToken? ???? ?? ?????? ???? ??? ? ????. ?? ?? ??? ?? ??? ?? ? ????. ??>

var result = CommonApi.GetMenu(accessToken);

????? ?? ?? ?? ??? API ?? ???????. ??? ??? ??? ??? ?? ????. ?? ?? API ??? ? ?? ??? ????.

? ??? ???? ?? ??? ? ???? ??? ? ??? ? ?? ????? ????.

API? ??? AccessToken? ???? ????? ???(?? ? ?? ??? ??? ???? ??). ???) WeChat ?? ??? ?? AccessToken? ????? ?? ??? ?? AccessToken? ???? ? ????.) ?? ??? API ??? ?? ??? ???? ???.

?? API ?? ??? ???? ??? ?? ??? ??? ?????.

?? ??

?? ? ? ?? ???? API? ?? ??? ? ??? ?? appId? ???? ???.

var result = CommonApi.GetMenu(appId);

?? ???? ?? ??? ?? appId ? appSecret? ???? ???? ???.

AccessTokenContainer.Register(_appId, _appSecret);//全局只需注冊一次，例如可以放在Global的Application_Start()方法中。

????? ?? accessToken? appId? ????(? ????? ??? accessToken ??? ???) accessToken? ?? ????? ?????. . ???? ??? ??? ???? ????.

SDK ?? ?? ?? ????

???? (??? ??) ??? AccessToken? ???? ???? ?? SDK?? Senparc.Weixin.MP/AccessTokenHandlerWapper.Do() ???? ??????. ?? ???????? AccessTokenHandlerWapper.cs? ??? ApiHandlerWapper.cs? ??? Do() ???? ?????? TryCommonApi() ???? ???????. ??? ??? ????.

namespace Senparc.Weixin.MP
{
    /// <summary>
    /// 針對AccessToken無效或過期的自動處理類
    /// </summary>
    public static class ApiHandlerWapper
    {
        /// <summary>
        /// 使用AccessToken進(jìn)行操作時，如果遇到AccessToken錯誤的情況，重新獲取AccessToken一次，并重試。
        /// 使用此方法之前必須使用AccessTokenContainer.Register(_appId, _appSecret);或JsApiTicketContainer.Register(_appId, _appSecret);方法對賬號信息進(jìn)行過注冊，否則會出錯。
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="fun"></param>
        /// <param name="accessTokenOrAppId">AccessToken或AppId。如果為null，則自動取已經(jīng)注冊的第一個appId/appSecret來信息獲取AccessToken。</param>
        /// <param name="retryIfFaild">請保留默認(rèn)值true，不用輸入。</param>
        /// <returns></returns>
        public static T TryCommonApi<T>(Func<string, T> fun, string accessTokenOrAppId = null, bool retryIfFaild = true) where T : WxJsonResult
        {
            string appId = null;
            string accessToken = null;
 
            if (accessTokenOrAppId == null)
            {
                appId = AccessTokenContainer.GetFirstOrDefaultAppId();
                if (appId == null)
                {
                    throw new WeixinException("尚無已經(jīng)注冊的AppId，請先使用AccessTokenContainer.Register完成注冊（全局執(zhí)行一次即可）！");
                }
            }
            else if (ApiUtility.IsAppId(accessTokenOrAppId))
            {
                if (!AccessTokenContainer.CheckRegistered(accessTokenOrAppId))
                {
                    throw new WeixinException("此appId尚未注冊，請先使用AccessTokenContainer.Register完成注冊（全局執(zhí)行一次即可）！");
                }
 
                appId = accessTokenOrAppId;
            }
            else
            {
                //accessToken
                accessToken = accessTokenOrAppId;
            }
 
 
            T result = null;
 
            try
            {
                if (accessToken == null)
                {
                    var accessTokenResult = AccessTokenContainer.GetAccessTokenResult(appId, false);
                    accessToken = accessTokenResult.access_token;
                }
                result = fun(accessToken);
            }
            catch (ErrorJsonResultException ex)
            {
                if (!retryIfFaild
                    && appId != null
                    && ex.JsonResult.errcode == ReturnCode.獲取access_token時AppSecret錯誤或者access_token無效)
                {
                    //嘗試重新驗(yàn)證
                    var accessTokenResult = AccessTokenContainer.GetAccessTokenResult(appId, true);
                    accessToken = accessTokenResult.access_token;
                    result = TryCommonApi(fun, appId, false);
                }
            }
            return result;
        }
    }
}

?? API? ?? ??? ?? ??? ????. :

/// <summary>
/// 獲取當(dāng)前菜單，如果菜單不存在，將返回null
/// </summary>
/// <param name="accessToken"></param>
/// <returns></returns>
public static GetMenuResult GetMenu(string accessToken)
{
    var url = string.Format("https://api.weixin.qq.com/cgi-bin/menu/get?access_token={0}", accessToken);
 
    var jsonString = HttpUtility.RequestUtility.HttpGet(url, Encoding.UTF8);
    //var finalResult = GetMenuFromJson(jsonString);
 
    GetMenuResult finalResult;
    JavaScriptSerializer js = new JavaScriptSerializer();
    try
    {
        var jsonResult = js.Deserialize<GetMenuResultFull>(jsonString);
        if (jsonResult.menu == null || jsonResult.menu.button.Count == 0)
        {
            throw new WeixinException(jsonResult.errmsg);
        }
 
        finalResult = GetMenuFromJsonResult(jsonResult);
    }
    catch (WeixinException ex)
    {
        finalResult = null;
    }
 
    return finalResult;
}

?? TryCommonApi() ???? ??? ?:

/// <summary>
/// 獲取當(dāng)前菜單，如果菜單不存在，將返回null
/// </summary>
/// <param name="accessTokenOrAppId">AccessToken或AppId。當(dāng)為AppId時，如果AccessToken錯誤將自動獲取一次。當(dāng)為null時，獲取當(dāng)前注冊的第一個AppId。</param>
/// <returns></returns>
public static GetMenuResult GetMenu(string accessTokenOrAppId)
{
    return ApiHandlerWapper.TryCommonApi(accessToken =>
      {
          var url = string.Format("https://api.weixin.qq.com/cgi-bin/menu/get?access_token={0}", accessToken);
 
          var jsonString = HttpUtility.RequestUtility.HttpGet(url, Encoding.UTF8);
          //var finalResult = GetMenuFromJson(jsonString);
 
          GetMenuResult finalResult;
          JavaScriptSerializer js = new JavaScriptSerializer();
          try
          {
              var jsonResult = js.Deserialize<GetMenuResultFull>(jsonString);
              if (jsonResult.menu == null || jsonResult.menu.button.Count == 0)
              {
                  throw new WeixinException(jsonResult.errmsg);
              }
 
              finalResult = GetMenuFromJsonResult(jsonResult);
          }
          catch (WeixinException ex)
          {
              finalResult = null;
          }
 
          return finalResult;
      }, accessTokenOrAppId);
}

??? ?? ?? ??? ??? ? ????.

1. ?? accessToken ?? ??? accessTokenOrAppId? ?????(?? ? ????? ?????? ?? ??? ?????.

?? ? ? ????? accessToken(?? ??? ???) ?? appId(accessToken? ?? ?? ??)? ???? ??? ? ????. SDK? ??? ??? ?? ?? ???? ??? ???? ???? ?????. 3?? ??? ????? ?????:

a) appId. appId? ????? ??? ??? ?? appId ? appSecret? ?? ??? ?????. API ?? ?? ??? AccessToken? ??? ??? ???? SDK? ???? AccessToken? ?? ??? API ??? ?? ???? ??? ??? ???? ?????. ????. appId? ???? ?? ?? ??? ?????.

b) accessToken. ? ?? ?? ?? ??? ?????. accessToken? ???? ??? ??? ?? ?? ??? ?????.

c) null. accessTokenOrAppId ????? null?? SDK? ????? ??? ? ?? appId? ???? ?????. ?? WeChat ID? ???? ??????? ???? ?? ? ??? ??? ? ????. ????? ??? appId? ??? ??? ?????.

2. ?? ????? API? ????? ?? ??? ?? ????? ???? ?????. ?? return ApiHandlerWapper.TryCommonApi(accessToken =>{...},accessTokenOrAppId) ???? ???? ?? ????. ?? ??? ??? ? ?? ??? ??? ? SDK? ??? ??? ???? ??? ? ??? ?? ????.

? ??? Senparc.Weixin.MP v12.1?? ???????.

WeChat ?? ??? ??? ??? ? ?? ??? ???: AccessToken ?? ?? ????, PHP ??? ????? ?????!