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.net微信開發(fā) 如何獲取AccessToken

更新時間：2017年03月04日 10:32:35 作者：zhyue93

這篇文章主要為大家詳細(xì)介紹了微信開發(fā)中AccessToken的獲取方法，具有一定的參考價值，感興趣的小伙伴們可以參考一下

本文實例為大家分享了獲取AccessToken的方法，供大家參考，具體內(nèi)容如下

AccessToken獲取方法

public static Access_token GetAccessToken()
{
  string formatString = String.Format("https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}", AppId, AppSecret);

  Access_token res = new Access_token();
  HttpWebRequest request = (HttpWebRequest)WebRequest.Create(formatString);
  request.Method = "GET";
  request.ContentType = "text/html;charset=UTF-8";
  HttpWebResponse response = (HttpWebResponse)request.GetResponse();
  Stream myResponseStream = response.GetResponseStream();
  StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("utf-8"));
  string retString = myStreamReader.ReadToEnd();
  myStreamReader.Close();
  myResponseStream.Close();
  if (retString.IndexOf("7200") > 0)
  {
    Access_token token = new Access_token();
    token = JsonHelper.ParseFromJson<Access_token>(retString);
    res.access_token = token.access_token;
    res.expires_in = token.expires_in;
  }
  return res;
}

Access_token類結(jié)構(gòu)

public class Access_token
{
  public Access_token()
  {
    // 
    //TODO:用于驗證Access_token是否過期實體
    // 
  }
  string _access_token;
  string _expires_in;

  /// <summary> 
  /// 獲取到的憑證  
  /// </summary> 
  public string access_token
  {
    get { return _access_token; }
    set { _access_token = value; }
  }

  /// <summary> 
  /// 憑證有效時間，單位：秒 
  /// </summary> 
  public string expires_in
  {
    get { return _expires_in; }
    set { _expires_in = value; }
  }
}

JsonHelper.ParseFromJson方法

/// <summary> 
/// 將JSON對象轉(zhuǎn)換為Model
/// </summary> 
/// <typeparam name="T"></typeparam> 
/// <param name="szJson"></param> 
/// <returns></returns> 
public static T ParseFromJson<T>(string szJson)
{
  T obj = Activator.CreateInstance<T>();
  using (MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(szJson)))
  {
    DataContractJsonSerializer serializer = new DataContractJsonSerializer(obj.GetType());
    return (T)serializer.ReadObject(ms);
  }
}

以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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