usingSystem;usingSystem.Web;usingNewtonsoft.Json.Linq;usingSystem.Net;usingSystem.IO;usingSystem.Text;public classgetinfos : IHttpHandler {public voidProcessRequest (HttpContext context) {//一切都从这里开始
string code = context.Request[“code”].ToString();
context.Response.ContentType= “text/plain”;
context.Response.Write(GetInfos(code));
}public boolIsReusable {get{return false;
}
}public string GetInfos(string_code)
{// string _access_tokens =GetToken(_code);
JObject json=JObject.Parse(_access_tokens);string access_token = json[“access_token”].ToString();string refresh_token = json[“refresh_token”].ToString();string openid = json[“openid”].ToString();// string _infos =GetUserInfo(access_token, openid);
JObject info=JObject.Parse(_infos);if (info[“errcode”] != null)
{
_access_tokens=RefreshToken(refresh_token);
json=JObject.Parse(_access_tokens);
access_token= json[“access_token”].ToString();
openid= json[“openid”].ToString();
_infos=GetUserInfo(access_token, openid);
}return_infos;
}///
///用code 获取 Token///
private string GetToken(string_code)
{if (_code.IndexOf(“\””) > -1)
_code= _code.Replace(“\””, “”);string URL = “https://api.weixin.qq.com/sns/oauth2/access_token”;string RequestPara = “?appid=xxx”;
RequestPara+= “&secret=xxx”;
RequestPara+= “&code=” +_code;
RequestPara+= “&grant_type=authorization_code”;string _access_tokens =GetData(URL, RequestPara);
_access_tokens= _access_tokens.Replace(“\””, “‘”);return_access_tokens;
}///
///获取用户信息///
private string GetUserInfo(string access_token, stringopenid)
{if (access_token.IndexOf(“\””) > -1)
access_token= access_token.Replace(“\””, “”);if (openid.IndexOf(“\””) > -1)
openid= openid.Replace(“\””, “”);string I_URL = “https://api.weixin.qq.com/sns/userinfo”;string I_RequestPara = “?access_token=” +access_token;
I_RequestPara+= “&openid=” +openid;
I_RequestPara+= “&lang=zh_CN”;string _infos =GetData(I_URL, I_RequestPara);
_infos= _infos.Replace(“\””, “‘”);return_infos;
}///
///刷新 Token///
private string RefreshToken(stringrefresh_token)
{if (refresh_token.IndexOf(“\””) > -1)
refresh_token= refresh_token.Replace(“\””, “”);string R_URL = “https://api.weixin.qq.com/sns/oauth2/refresh_token”;string R_RequestPara = “?appid=xxx”;
R_RequestPara+= “&grant_type=refresh_token”;
R_RequestPara+= “&refresh_token=” +refresh_token;string _infos =GetData(R_URL, R_RequestPara);
_infos= _infos.Replace(“\””, “‘”);return_infos;
}///
///访问地址，并获取数据///
private string GetData(string URL, stringRequestPara)
{
RequestPara= RequestPara.IndexOf(‘?’) > -1 ? (RequestPara) : (“?” +RequestPara);
WebRequest hr= HttpWebRequest.Create(URL +RequestPara);byte[] buf = System.Text.Encoding.GetEncoding(“utf-8”).GetBytes(RequestPara);
hr.Method= “GET”;
System.Net.WebResponse response=hr.GetResponse();
StreamReader reader= new StreamReader(response.GetResponseStream(), Encoding.GetEncoding(“utf-8”));string ReturnVal =reader.ReadToEnd();
reader.Close();
response.Close();returnReturnVal;
}
}