.net微信开发 如何获取AccessToken


            本文实例为大家分享了获取AccessToken的方法，供大家参考，具体内容如下

AccessToken获取方法





public static Access_token GetAccessToken()

{

  string formatString = String.Format("http://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类结构





public class Access_token

{

  public Access_token()

  {

    // 

    //TODO:用于验证Access_token是否过期实体

    // 

  }

  string _access_token;

  string _expires_in;



  /// <summary> 

  /// 获取到的凭证  

  /// </summary> 

  public string access_token

  {

    get { return _access_token; }

    set { _access_token = value; }

  }



  /// <summary> 

  /// 凭证有效时间，单位：秒 

  /// </summary> 

  public string expires_in

  {

    get { return _expires_in; }

    set { _expires_in = value; }

  }

}







JsonHelper.ParseFromJson方法





/// <summary> 

/// 将JSON对象转换为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内容，希望对大家的学习有所帮助，也希望大家多多支持中文源码网。