微信授权

using KDMall.Common;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Senparc.Weixin;
using Senparc.Weixin.MP.AdvancedAPIs;
using KDMall.BLL;
using KDMall.Mall.Admin.RCCQPark.bll;
using KDMall.ORM;
using System.IO;

namespace KDMall.Mall.Admin.RCCQPark_APP.mobile.view
{
    public partial class reserve : System.Web.UI.Page
    {
        public static string COOKIE_HP_OPENID = "COOKIE_HP_OPENID";

        protected void Page_Load(object sender, EventArgs e)
        {
            if (string.IsNullOrWhiteSpace(Utils.GetCookie(COOKIE_HP_OPENID)))
            {
                BaseCallbackOauth(Request.Url.AbsoluteUri, "snsapi_base");
            }
            else
            {
                //t_rccq_users users = HttpContext.Current.Session[key.SESSION_ADMIN_INFO] as t_rccq_users;
                //if (users != null)
                //{
                //    DapperHelper.UpdateSql(DapperConnection.kd_user, "update t_rccq_users set open_id=@openid where user_name=@name", new { openid = Utils.GetCookie(COOKIE_HP_OPENID), name = users.user_name });
                //}
                ////将用户的授权回来的openid保存在cook中
                //Utils.WriteCookie(COOKIE_HP_OPENID, Utils.GetCookie(COOKIE_HP_OPENID),30);

            }
        }

        /// <summary>
        /// 用户授权获取union_openId
        /// </summary>
        /// <param name="to_wx_url">页面url地址绝对路劲,跳转到微信需要的url地址。</param>
        /// <param name="page_name">页面地址：微信跳转回来后，拿到openid后，内部跳转的地址</param>
        /// <param name="oauth_type">授权方式，snsapi_base：静默授权，不需要用户同意，直接获取openID；snsapi_userinfo：需要用户手动同意。</param>
        public void BaseCallbackOauth(string to_wx_url, string oauth_type = "snsapi_base")
        {
            var appid = ConfigurationManager.AppSettings["KDMallAppId"];
            var appsecret = ConfigurationManager.AppSettings["KDMallsecret"];         
            string code = Request.QueryString["code"];
            if (string.IsNullOrEmpty(code))
            {
                Response.Redirect(string.Format("https://open.weixin.qq.com/connect/oauth2/authorize?appid={0}&redirect_uri={1}&response_type=code&scope={2}&state=ceiling#wechat_redirect", appid, HttpUtility.UrlEncode(to_wx_url), oauth_type));
                return;
            }
            //通过，用code换取access_token
            try
            {
                var result = OAuth.GetAccessToken(appid, appsecret, code);              
                if (result.errcode != ReturnCode.请求成功)
                    return;
                t_rccq_users users = HttpContext.Current.Session[key.SESSION_ADMIN_INFO] as t_rccq_users;              
                if (users != null)
                {
                    string sql = string.Format("update t_rccq_users set open_id='{0}' where user_name='{1}'", result.openid, users.user_name);
                    DapperHelper.UpdateSql(DapperConnection.kd_user, sql,null);
                }

                //将用户的授权回来的openid保存在cook中
                Utils.WriteCookie(COOKIE_HP_OPENID, result.openid, 30);

            }
            catch (Senparc.Weixin.Exceptions.ErrorJsonResultException ex) {
                WriteLog("1", "授权失败--" + DateTime.Now, ex.Message );
            }
        }



        public static void WriteLog(string type, string className, string content)
        {
            //在网站根目录下创建日志目录
            string path = HttpContext.Current.Server.MapPath("~/app_Log");
            if (!Directory.Exists(path))//如果日志目录不存在就创建
            {
                Directory.CreateDirectory(path);
            }

            string time = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fff");//获取当前系统时间
            string filename = path + "/" + DateTime.Now.ToString("yyyy-MM-dd") + ".log";//用日期对日志文件命名

            //创建或打开日志文件，向日志文件末尾追加记录
            StreamWriter mySw = File.AppendText(filename);

            //向日志文件写入内容
            string write_content = time + " " + type + " " + className + ": " + content;
            mySw.WriteLine(write_content);

            //关闭日志文件
            mySw.Close();
        }
    }
}