Shulou(Shulou.com)06/03 Report--

In this issue, the editor will bring you about how to use. NET Wechat official account to obtain OpenID and user information, the article is rich in content and analyzes and describes from a professional point of view. I hope you can get something after reading this article.

Index.aspx.cs Code:

Public partial class Index: System.Web.UI.Page {/ / user id public string openid = ""; / / official account information part public string appid = ConfigurationManager.AppSettings ["AppId"]; public string appsecret = ConfigurationManager.AppSettings ["AppSecret"]; public string redirect_uri = HttpUtility.UrlEncode ("https://www.jb51.net"); public string scope =" [delete this and enter the request type, for example: snsapi_userinfo] "; # region display page public string accesstoken; public string nickname Public string sex; public string headimgurl; public string province; public string country; public string language; public string city; public string privilege = ""; # endregion protected void Page_Load (object sender, EventArgs e) {/ * * Wechat certification acquisition openid part: * interim certification code * / / Wechat certification section: the second step is to obtain code string code = Request ["code"] If (string.IsNullOrEmpty (code)) {/ / if the code is not obtained successfully, pull the OpenAccess () again;} / / Wechat authentication section: the third step is to get openid string url = string.Format ("https://api.weixin.qq.com/sns/oauth3/access_token?appid={0}&secret={1}&code={2}&grant_type=authorization_code", appid, appsecret, code); string result = HttpClientHelper.GetResponse (url)) LogHelper.WriteFile (result); JObject outputObj = JObject.Parse (result); / / Wechat authentication section: step 4: get more information accesstoken = outputObj ["access_token"] .ToString (); openid = outputObj ["openid"] .ToString (); url = string.Format ("https://api.weixin.qq.com/sns/userinfo?access_token={0}&openid={1}&lang=zh_CN",accesstoken,openid); string result1 = HttpClientHelper.GetResponse (url)) LogHelper.WriteFile (result1); JObject outputObj1 = JObject.Parse (result1); / / convert json to an array / / the following is the information obtained in step 4: nickname = outputObj1 ["nickname"]. ToString (); / / nickname sex = outputObj1 ["sex"]. ToString (); / / headimgurl = outputObj1 ["headimgurl"]. ToString (); / / profile url province = outputObj1 ["province"]. ToString (); Country = outputObj1 ["country"] .ToString (); language = outputObj1 ["language"] .ToString ();; city = outputObj1 ["city"] .ToString (); / / fill the obtained user information into session Session ["openid"] = outputObj1 ["openid"]; / / turn back to the entry / / OpenAccess () } / * * access entry * Open to the Wechat menu to call * @ param $dir_url Source url * @ since 1.0 * @ return void * / public void OpenAccess () {/ / determine that if does not exist in session (Session ["openid"] = = null) {/ / Authentication step 1: redirect to the authentication URL string url = string.Format ("https") : / / open.weixin.qq.com/connect/oauth3/authorize?appid= {0} & redirect_uri= {1} & & response_type=code&scope=snsapi_userinfo&m=oauth3#wechat_redirect " Appid, redirect_uri) Response.Redirect (url);} / determine the existence of else in session {/ / jump to the front page .aspx Response.Redirect (Request.Url.ToString ());}

Index.aspx content:

Td {word-wrap: break-word;}

Openid:

Nickname:

Sex:

Language:

City:

Country:

Headimgurl:

Privilege:

HttpClientHelper.cs Code:

Public class HttpClientHelper {/ get request / public static string GetResponse (string url) {if (url.StartsWith ("https")) {ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls;} var httpClient = new HttpClient (); httpClient.DefaultRequestHeaders.Accept.Add (new MediaTypeWithQualityHeaderValue ("application/json")); HttpResponseMessage response = httpClient.GetAsync (url). Result If (response.IsSuccessStatusCode) {string result = response.Content.ReadAsStringAsync (). Result; return result;} return null;} public static T GetResponse (string url) where T: class, new () {if (url.StartsWith ("https")) ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls; var httpClient = new HttpClient (); httpClient.DefaultRequestHeaders.Accept.Add (new MediaTypeWithQualityHeaderValue ("application/json")); HttpResponseMessage response = httpClient.GetAsync (url). Result T result = default (T); if (response.IsSuccessStatusCode) {Task t = response.Content.ReadAsStringAsync (); string s = t.Result; result = JsonConvert.DeserializeObject (s);} return result;} / post request / post data / public static string PostResponse (string url, string postData) {if (url.StartsWith ("https")) ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls HttpContent httpContent = new StringContent (postData); httpContent.Headers.ContentType = new MediaTypeHeaderValue ("application/json"); var httpClient = new HttpClient (); HttpResponseMessage response = httpClient.PostAsync (url, httpContent) .result; if (response.IsSuccessStatusCode) {string result = response.Content.ReadAsStringAsync () .Result; return result;} return null } / url / post data / public static T PostResponse (string url, string postData) where T: class, new () {if (url.StartsWith ("https")) ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls; HttpContent httpContent = new StringContent (postData); httpContent.Headers.ContentType = new MediaTypeHeaderValue ("application/json"); var httpClient = new HttpClient () T result = default (T); HttpResponseMessage response = httpClient.PostAsync (url, httpContent) .Result; if (response.IsSuccessStatusCode) {Task t = response.Content.ReadAsStringAsync (); string s = t.Result; result = JsonConvert.DeserializeObject (s);} return result } / V3 interfaces are all in Xml form, so there is this method / public static T PostXmlResponse (string url, string xmlString) where T: class, new () {if (url.StartsWith ("https")) ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls; HttpContent httpContent = new StringContent (xmlString); httpContent.Headers.ContentType = new MediaTypeHeaderValue ("application/json"); var httpClient = new HttpClient () T result = default (T); HttpResponseMessage response = httpClient.PostAsync (url, httpContent) .Result; if (response.IsSuccessStatusCode) {Task t = response.Content.ReadAsStringAsync (); string s = t.Result; result = XmlDeserialize (s);} return result } / public static T XmlDeserialize (string xmlString) where T: class, new () {try {var ser = new XmlSerializer (typeof (T)); using (var reader = new StringReader (xmlString)) {return (T) ser.Deserialize (reader) }} catch (Exception ex) {throw new Exception ("XmlDeserialize exception: xmlString:" + xmlString + "exception message:" + ex.Message);}

The result is shown in the figure:

The above is the editor for you to share how to use. NET Wechat official account to obtain OpenID and user information, if you happen to have similar doubts, you may wish to refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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