Web/account/_QQcallback.aspx.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Net;
using System.IO;
using System.Text;
using System.Web.Script.Serialization;
using System.Collections.Specialized;
using Newtonsoft.Json;
using System.Configuration;
using Newtonsoft.Json.Linq;
using System.Text.RegularExpressions;

public partial class _account_QQcallback : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //登录成功返回code,再获取access token
        if (Request["code"] != null && Request["grant_type"] == null)
        {
            string access_token = getaccess_token(Request["code"]);
            Response.Write("access_token=" + access_token + " ");
            string openid = getopenid(access_token);
            Response.Write("openid=" + openid + " ");
            QQInfo my = get_user_info(access_token, openid);

            WebUtility.getRequestUrl(openid, my.nickname, "QQ");
        }
        else
        {

        }
    }

    /// <summary>
    /// 远程接口登录,返回access_token
    /// </summary>
    /// <returns></returns>
    public string getaccess_token(string code)
    {
        string key = ConfigurationManager.AppSettings["ConsumerKey"];
        string ConsumerSecret = ConfigurationManager.AppSettings["ConsumerSecret"];

        string return_content = "";
        StringBuilder myparam = new StringBuilder();
        myparam.Append("grant_type=authorization_code");
        myparam.Append("&client_id=" + key);
        myparam.Append("&client_secret=" + ConsumerSecret);
        myparam.Append("&code=" + code);
        myparam.Append("&state=1");
        myparam.Append("&redirect_uri=" + WebUtility.GetConfigsite() + "/Account/QQcallback.aspx");
        string param = myparam.ToString();

        byte[] bs = System.Text.Encoding.Default.GetBytes(param);
        string url = "https://graph.qq.com/oauth2.0/token";
        HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create(url);
        req.Method = "POST";