HENGCHENG/DSWeb/Areas/Mobile/DAL/AccessTokenDAL.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using Microsoft.Practices.EnterpriseLibrary.Data;
using System.Data;
using DSWeb.MvcShipping.DAL.Chfee_AuditDAL;
using DSWeb.Areas.Account.Models.MsOpBill;
using System.Text;
using System.Configuration;
using DSWeb.Areas.Mobile.Models.Login;
using DSWeb.TruckMng.Helper;
namespace DSWeb.Areas.Mobile.DAL
{
    public class AccessTokenDAL
    {
        //获取AccessToken
        public static string GetAccessToken(){
            string sql = "select top 1 AccessToken from sys_WeChatConfig order by updatetime desc";
            Database db = DatabaseFactory.CreateDatabase();

            DBLog.Log("GetAccessToken","sql",sql);
            var token = db.ExecuteScalar(CommandType.Text, sql) ;
            if (token==null||token==DBNull.Value || token.ToString()=="")
            {
                DBLog.Log("RefrashAccessToken","before");
                token = RefrashAccessToken();
                DBLog.Log("RefrashAccessToken", "end", token.ToString());
            }
            DBLog.Log("GetAccessToken","end");
            return token.ToString();
        }

        //设置AccessToken
        public static bool SetAccessToken (string token)
        {
            string sqlins = "insert into sys_WeChatConfig (accesstoken) values('" + token + "')";
            Database db = DatabaseFactory.CreateDatabase();
            int rst = db.ExecuteNonQuery(CommandType.Text,sqlins);
            return rst>0;
        }

        //刷新AccessToken
        public static string RefrashAccessToken ( ) {
            string appid = ConfigurationManager.AppSettings["appid"].ToString();
            string secret = ConfigurationManager.AppSettings["secret"].ToString();
            string url = string.Format(@"https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={0}&secret={1}",appid,secret);
            string respStr = HttpHelper.HttpGet(url);
            DBLog.Log("RefrashAccessToken", "respStr", respStr);
            AccessTokenModel token = JsonConvert.Deserialize<AccessTokenModel>(respStr);

            Database db = DatabaseFactory.CreateDatabase();
            DBLog.Log("RefrashAccessToken","token",token.access_token);
            string sqlins = "insert into sys_WeChatConfig (accesstoken) values('"+token.access_token+"')";

            int rst =  db.ExecuteNonQuery(CommandType.Text,sqlins);

            if (rst>0)
            {
                return token.access_token;
            }
            else
            {
                return "";
            }
        }


    }
}