/// <summary>
///更新票据
/// </summary>
/// <param name="forced">true:强制更新.false:按缓存是否到期来更新</param>
public static void UpdateAccessToken(bool forced = false)
{
//ConstVars.CACHE_TIME是缓存时间(常量，也可放到配置文件中)，这样在有效期内则直接从缓存中获取票据，不需要再向服务器中获取。
if (!forced && AccessToken.Begin.AddSeconds(ConstVars.CACHE_TIME) >= DateTime.Now)
{//没有强制更新，并且没有超过缓存时间
return;
}
string CorpID = ConfigHelper.FetchCorpID();
string CorpSecret = ConfigHelper.FetchCorpSecret();
string TokenUrl = Urls.gettoken;
String apiurl = $"{TokenUrl}?{Keys.corpid}={CorpID}&{Keys.corpsecret}={CorpSecret}";
WebRequest request = WebRequest.Create(apiurl);
request.Method = "GET";
WebResponse response = request.GetResponse();
Stream stream = response.GetResponseStream();
Encoding encode = Encoding.UTF8;
StreamReader reader = new StreamReader(stream, encode);
string resultJson = reader.ReadToEnd();
TokenResult tokenResult = JsonConvert.DeserializeObject <TokenResult>(resultJson);
if (tokenResult.ErrCode == ErrCodeEnum.OK)
{
AccessToken.Value = tokenResult.Access_token;
AccessToken.Begin = DateTime.Now;
}
else
{
ResultPackage xx = new ResultPackage();
xx.ErrMsg = tokenResult.ErrMsg;
}
}
/// <summary>
/// 分析结果
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="resultJson"></param>
/// <returns></returns>
private static T AnalyzeResult <T>(string resultJson) where T : ResultPackage, new()
{
ResultPackage tempResult = null;
if (!String.IsNullOrEmpty(resultJson))
{
tempResult = JsonConvert.DeserializeObject <ResultPackage>(resultJson);
}
T result = null;
if (tempResult != null && tempResult.IsOK())
{
result = JsonConvert.DeserializeObject <T>(resultJson);
}
else if (tempResult != null)
{
result = tempResult as T;
}
else if (tempResult == null)
{
result = new T();
}
result.Json = resultJson;
return(result);
}