//得到ticket 如果文件里时间 超时则重新获取
/*
* private string getJsApiTicket()
* {
* string ticket = string.Empty;
* //这里我从数据库读取
* // DT = DbSession.Default.FromSql("select jsapi_ticket,ticket_expires from table where ID=1").ToDataTable();
* // int expire_time = (int)DT.Rows[0]["ticket_expires"];
* // string ticket = DT.Rows[0]["jsapi_ticket"].ToString();
* int expire_time = ShopConfig.ReadConfigInfo().ExpireTime;
* ticket = ShopConfig.ReadConfigInfo().Ticket;
*
* string accessToken = GetAccessToken(appId,appSecret);//获取系统的全局token
* if (expire_time < ConvertDateTimeInt(DateTime.Now))
* {
* string url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=" + accessToken + "";
* Jsapi api = JsonConvert.DeserializeObject<Jsapi>(httpGet(url).Trim());
* ticket = api.ticket;
* if (ticket != "")
* {
* expire_time = ConvertDateTimeInt(DateTime.Now) + 7000;
* //存入数据库操作
*
* ShopConfigInfo config = ShopConfig.ReadConfigInfo();
* config.Ticket = ticket;
* config.ExpireTime = expire_time;
*
* ShopConfig.UpdateConfigInfo(config);
* }
* }
* return ticket;
* }
* */
/// <summary>
/// 根据当前日期 判断Access_Token 是否超期 如果超期返回新的Access_Token 否则返回之前的Access_Token
/// </summary>
/// <param name="datetime"></param>
/// <returns></returns>
public static string IsExistAccess_Token()
{
string Token = string.Empty;
DateTime YouXRQ;
// 读取XML文件中的数据，并显示出来 ，注意文件路径
string filepath = System.Web.HttpContext.Current.Server.MapPath(@"/Config/access_token.xml");
string errorfilepath = System.Web.HttpContext.Current.Server.MapPath(@"/Config/error.xml");
StreamReader str = new StreamReader(filepath, System.Text.Encoding.UTF8);
XmlDocument xml = new XmlDocument();
xml.Load(str);
str.Close();
str.Dispose();
StreamReader errorstr = new StreamReader(errorfilepath, System.Text.Encoding.UTF8);
XmlDocument errorXml = new XmlDocument();
errorXml.Load(errorstr);
errorstr.Close();
errorstr.Dispose();
Token = xml.SelectSingleNode("xml").SelectSingleNode("Access_Token").InnerText;
YouXRQ = Convert.ToDateTime(xml.SelectSingleNode("xml").SelectSingleNode("Access_YouXRQ").InnerText);
errorXml.SelectSingleNode("error").SelectSingleNode("errorstr").InnerText = "date later(" + DateTime.Now.AddMinutes(-2) + ") than now(" + YouXRQ + ")";
if (DateTime.Now.AddMinutes(-2) > YouXRQ)
{
DateTime _youxrq = DateTime.Now;
Access_token mode = GetAccess_token();
XmlElement node = errorXml.CreateElement("access_token");
node.InnerText = mode.access_token;
errorXml.SelectSingleNode("error").AppendChild(node);
if (!string.IsNullOrEmpty(mode.access_token))
{
xml.SelectSingleNode("xml").SelectSingleNode("Access_Token").InnerText = mode.access_token;
_youxrq = _youxrq.AddSeconds(mode.expires_in);
xml.SelectSingleNode("xml").SelectSingleNode("Access_YouXRQ").InnerText = _youxrq.ToString();
xml.Save(filepath);
Token = mode.access_token;
}
}
errorXml.Save(errorfilepath);
return(Token);
}
public static Access_token GetAccess_token()
{
string url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + appId + "&secret=" + appSecret;
string result = httpGet(url);
Access_token mode = new Access_token();
if (!string.IsNullOrEmpty(result))
{
JsonData jd = JsonMapper.ToObject(result);
if (!((IDictionary)jd).Contains("errmsg"))
{
mode.access_token = (string)jd["access_token"];
mode.expires_in = (int)jd["expires_in"];
}
}
return(mode);
}
