新浪，QQ,第三方登录

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using NetDimension.Weibo;
using QConnectSDK;
using QConnectSDK.Context;

namespace ToothBond.Aiya.Web.Job.Controllers
{
    public class U3LoginController : Controller
    {

        Client Sina = null;
        OAuth oauth =
            new OAuth(
            System.Configuration.ConfigurationManager.AppSettings["AppKey"],
            System.Configuration.ConfigurationManager.AppSettings["AppSecret"],
            System.Configuration.ConfigurationManager.AppSettings["CallbackURL"]);

        /// <summary>
        /// 新浪登录
        /// </summary>
        /// <returns></returns>
        public ActionResult SinaLogin()
        {
            Sina = new Client(oauth);
            string url = oauth.GetAuthorizeURL();

            return new RedirectResult(url);
        }
        /// <summary>
        /// QQ登录
        /// </summary>
        /// <returns></returns>
        public ActionResult QzoneLogin()
        {
            var context = new QzoneContext();
            string state = Guid.NewGuid().ToString().Replace("-", "");
            string scope = "get_user_info";
            var authenticationUrl = context.GetAuthorizationUrl(state, scope);
            HttpContext.Session["requeststate"] = state;
            return new RedirectResult(authenticationUrl);
        }

        /// <summary>
        /// 新浪回调
        /// </summary>
        /// <returns></returns>
        public ActionResult SinaCallback()
        {
            if (!string.IsNullOrEmpty(Request["code"]))
            {
                Sina = new Client(oauth);
                var token = oauth.GetAccessTokenByAuthorizationCode(Request["code"]);
                string accessToken = token.Token;

                string uid = Sina.API.Entity.Account.GetUID();

                var dynamic_userInfo = Sina.API.Dynamic.Users.Show(uid);

                //存cookie
                TempData["uid"] = uid;
                TempData["nickName"] = dynamic_userInfo.screen_name;
                //TempData["from"] = dynamic_userInfo.location;

                Session["uid"] = uid;
                Session["nickName"] = dynamic_userInfo.screen_name;

                return Redirect("/");

            }
            return View();
        }
        /// <summary>
        /// QQ回调
        /// </summary>
        /// <returns></returns>
        public ActionResult QzoneCallback()
        {
            if (!string.IsNullOrEmpty(Request["code"]))
            {
                var verifier = Request.Params["code"];
                QOpenClient qzone = null;
                QConnectSDK.Models.User currentUser = null;
                string state = Session["requeststate"].ToString();
                qzone = new QOpenClient(verifier, state);
                currentUser = qzone.GetCurrentUser();
                string nickName = currentUser.Nickname;
                string openId = qzone.OAuthToken.OpenId;
                string accessToken = qzone.OAuthToken.AccessToken;

                Session["uid"] = openId;
                Session["nickName"] = nickName;

                return Redirect("/");
            }
            return View();
        }

    }
}

新浪微薄 字段说明 - user 
id: 用户UID 
screen_name: 微博昵称 
name: 友好显示名称，同微博昵称 
province: 省份编码（参考省份编码表） 
city: 城市编码（参考城市编码表） 
location：地址 
description: 个人描述 
url: 用户博客地址 
profile_image_url: 自定义图像 
domain: 用户个性化URL 
gender: 性别,m--男，f--女,n--未知 
followers_count: 粉丝数 
friends_count: 关注数 
statuses_count: 微博数 
favourites_count: 收藏数 
created_at: 创建时间 
following: 是否已关注(此特性暂不支持) 
verified: 加V标示，是否微博认证用户 
字段说明 - status 
created_at: 创建时间 
id: 微博ID 
text: 微博信息内容 
source: 微博来源 
favorited: 是否已收藏 
truncated: 是否被截断 
in_reply_to_status_id: 回复ID 
in_reply_to_user_id: 回复人UID 
in_reply_to_screen_name: 回复人昵称 
thumbnail_pic: 缩略图 
bmiddle_pic: 中型图片 
original_pic：原始图片 
user: 作者信息 
retweeted_status: 转发的博文，内容为status，如果不是转发，则没有此字段