Asp.net website implements sample code for accessing QQ logon and asp.net sample code

Asp.net website implements sample code for accessing QQ logon and asp.net sample code

Let's talk about the Code:

String client_id = "assigned app id"; string appid = "assigned app key"; string Return_url = "Returned url"; public string Authorize () {string state = new Random (100000 ). next (99,999 99 ). toString (); // random number HttpHelper http = new HttpHelper (); string url = string. format ("https://graph.qq.com/oauth2.0/authorize? Response_type = code & client_id = {0} & redirect_uri = {1} & state = {2} ", client_id, Return_url, state); string str =" <script> location. href = '"+ url +"' </script> "; return str ;}

Click Event to call directlyAuthorize()I can use the jump link directly.

Protected void Page_Load (object sender, EventArgs e) {QQ_Login q = new QQ_Login (); string url = q. Authorize (); // call Response. Write (url) here );}

Effect:

Click the image.urlThe following method is called, and the parameters are further described;

Public User_info Back_User (string code) {string state = new Random (100000 ). next (99,999 99 ). toString (); // random number User_info ui = new User_info (); string url = string. format (" https://graph.qq.com/oauth2.0/token?grant_type=authorization_code&client_id= {0} & client_secret = {1} & code = {2} & redirect_uri = {3} & state = {4} ", client_id, appid, code, Return_url, state ); string uu = HttpHelper. htmlFromUrlGet (url); // processing http request help class string code1 = uu. split ('&') [0]. split ('=') [1]. toString (); // obtain access_token // obtain the user's unique OpenID string url_me = string. format (" https://graph.qq.com/oauth2.0/me?access_token= {0} ", code1); string callback = HttpHelper. htmlFromUrlGet (url_me); // The callback = callback obtained here. substring (callback. indexOf (') + 1, (callback. indexOf (')-callback. indexOf (')-1 )). trim (); // dynamic jsonP = JValue. fromObject (callback); // here I use a serialization class library Newtonsoft. json. dll 6.0.4 version, but the company version is too low, only version 4.0 is recommended to use version 6.0.4 a jsonP = JsonConvert. deserializeObject <a> (callback); // Newtonsoft. json. dll 4.0 or 4.5 string OpenID = jsonP. openid; // obtain the unique OpenID of a user. // obtain the user information based on the OpenID. You can add string getinfo = string below to show more users. format (" https://graph.qq.com/user/get_user_info?access_token= {0} & oauth_consumer_key = {1} & openid = {2} ", code1, client_id, OpenID); string user = HttpHelper. htmlFromUrlGet (getinfo); B info = JsonConvert. deserializeObject <B> (user); ui. name = info. nickname; ui. openID = OpenID; ui. img_qq100 = info. figureurl_qq_1; ui. img_qq50 = info. figureurl_qq_2; ui. city = info. city; ui. year = info. year; ui. type = 1; return ui ;}

When you click an image, jump to the specified callback address and goredirect_uriAddressAuthorization Code;

User_info ui = new User_info (); var verifier = Request. Params ["code"]; // get Authorization Code ui = q. Back_User (verifier); drop method and return data

Paste the returned class.

Public class User_info {public string OpenID {get; set;} // the unique appid public string Name {get; set;} public string img_qq50 {get; set ;} // QQ image 40*40 public string img_qq100 {get; set;} public string city {get; set;} public int year {get; set ;}}

 public class a {   public string client_id { get; set; }   public string openid { get; set; } }

Summary

This is basically the end of the process, and there is so much code that interested users can be more familiar with their own operations. I hope this article will help you.