微信获取OpenId的方法

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微信获取OpenId的方法

[System.Web.Http.HttpGet]
public JsonResult GetOpenId(string Code)//传入Code值
{

       string  AppId = ConfigurationManager.AppSettings["AppId"]; //获取数据为string类型且在appsettings[“相关key”]string AppSc = ConfigurationManager.AppSettings["AppSc"]; //获取数据为string类型且在appsettings[“相关key”]string code = Code;string html = string.Empty;string url = $"={AppId}&secret={AppSc}&js_code={code}&grant_type=authorization_code";HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);request.Method = "GET";HttpWebResponse response = request.GetResponse() as HttpWebResponse;Stream ioStream = response.GetResponseStream();StreamReader sr = new StreamReader(ioStream, Encoding.UTF8);html = sr.ReadToEnd();sr.Close();ioStream.Close();response.Close();string key = "\"openid\":\"";string OpenId = "";CodeMsg msg = new CodeMsg();msg.Reson = html;int startIndex = html.IndexOf(key);if (startIndex != -1 ){//int endIndex = html.IndexOf ("\",", startIndex);//OpenId = html.Substring(startIndex + key.Length, endIndex - startIndex - key.Length); string jsonString = html;JObject json = JObject.Parse(jsonString);//推荐使用Jboject来使用。OpenId = json["openid"].ToString();}if (!string.IsNullOrEmpty(OpenId)){AccontMain model = new AccontMain();model = GetModel(OpenId);if (model != null){msg.Code = 1;msg.Count = 1;msg.Data = model;}else{model = new AccontMain();msg.Code = 1;msg.Count = 0;model.WxId = OpenId;msg.Data = model;}}return Json<CodeMsg>(msg);}