/// <summary>
/// 【异步方法】获取可用AccessToken
/// </summary>
/// <param name="componentAppId"></param>
/// <param name="componentVerifyTicket">如果为null则自动获取</param>
/// <param name="getNewToken">是否强制重新获取新的Token</param>
/// <returns></returns>
public static async Task <ComponentAccessTokenResult> GetComponentAccessTokenResultAsync(string componentAppId, string componentVerifyTicket = null, bool getNewToken = false)
{
if (!CheckRegistered(componentAppId))
{
throw new WeixinOpenException(UN_REGISTER_ALERT);
}
var accessTokenBag = TryGetItem(componentAppId);
using (Cache.BeginCacheLock(LockResourceName + ".GetComponentAccessTokenResult", componentAppId))//同步锁
{
if (getNewToken || accessTokenBag.ComponentAccessTokenExpireTime <= DateTime.Now)
{
//已过期，重新获取
componentVerifyTicket = componentVerifyTicket ?? TryGetComponentVerifyTicket(componentAppId);
var componentAccessTokenResult = await ComponentApi.GetComponentAccessTokenAsync(accessTokenBag.ComponentAppId, accessTokenBag.ComponentAppSecret, componentVerifyTicket);
accessTokenBag.ComponentAccessTokenResult = componentAccessTokenResult;
accessTokenBag.ComponentAccessTokenExpireTime = ApiUtility.GetExpireTime(componentAccessTokenResult.expires_in);
Update(accessTokenBag);//更新到缓存
}
}
return(accessTokenBag.ComponentAccessTokenResult);
}