.net实现用QQ登录第三方网站 实例源码

QQ第三方登录，类似下图的功能

using System;using System.Collections.Generic;using System.Configuration;using System.Linq;using System.Web;using System.Web.Mvc;using System.Xml;using OpenPlatform.Tool;using OpenPlatform.Tool.Commom;using OpenPlatform.Tool.OAuthClient.TencentQQ;using OpenPlatform.Tool.Utils;using OpenPlatform.Web.Common;using OpenPlatform.Web.Models;namespace OpenPlatform.Web.Controllers{ public class HomeController : Controller { private string PlatformCode = "qq"; static readonly string ClientId = ConfigurationManager.AppSettings["clientId"]; static readonly string ClientSecret = ConfigurationManager.AppSettings["clientSecret"]; static readonly string CallbackUrl = ConfigurationManager.AppSettings["callbackUrl"]; private IOAuthClient oauthClient; public HomeController() { oauthClient = new TencentQQClient(ClientId, ClientSecret, CallbackUrl); oauthClient.Option.State = PlatformCode; } public ActionResult Index() { //第一步：获取开放平台授权地址 string authorizeUrl = oauthClient.GetAuthorizeUrl(ResponseType.Code); ViewData["AuthorizeUrl"] = authorizeUrl; return View(); } /// <summary> /// 回调地址 /// </summary> /// <returns></returns> public ActionResult QQLoginCallback() { string xmlDataPath = Server.MapPath("~/DataXML/AuthorizeXML.xml"); string serverCallBackCode = Request["code"]; //第二步：认证成功获取Code Dictionary<String, IOAuthClient> m_oauthClients=new Dictionary<string, IOAuthClient>(); AuthToken accessToken = oauthClient.GetAccessTokenByAuthorizationCode(serverCallBackCode); if (accessToken != null) { return Content("认证失败"); } string nickName = oauthClient.Token.User.Nickname; string openId = oauthClient.Token.OAuthId; string responseResult = oauthClient.Token.TraceInfo; dynamic userInfo = DynamicHelper.FromJSON(responseResult); var info = XMLSerializeHelper.XmlDeserializeFromFile<List<UserInfo>>(xmlDataPath); if (info != null && !info.Where(s => s.OpenId == openId).Any()) { #region 保存数据 //提取xml文档 XmlDocument xd = new XmlDocument(); xd.Load(xmlDataPath); //获取根节点 XmlNode root = xd.DocumentElement; //创建元素 XmlElement newItem = xd.CreateElement("UserInfo"); newItem.AppendChild(newItem); XmlElement newOpenId = xd.CreateElement("OpenId"); XmlElement newNickName = xd.CreateElement("Nickname"); XmlElement figureurl_2 = xd.CreateElement("figureurl_2"); //设置内容 newOpenId.InnerText = openId; newNickName.InnerText = nickName; figureurl_2.InnerText = userInfo.figureurl_2; //添加节点 root.AppendChild(newItem); newItem.AppendChild(newOpenId); newItem.AppendChild(newNickName); newItem.AppendChild(figureurl_2); //保存xml文档 xd.Save(Server.MapPath(xmlDataPath)); #endregion } return null; } }}