private string CreateQRCodeUrl()
{
Dictionary <string, string> dic = new Dictionary <string, string>();
dic.Add("appid", helper.GetAppId);
dic.Add("mch_id", helper.GetMch_Id);
dic.Add("nonce_str", WpPCHelper.TenpayUtil.getNoncestr().ToLower());//TenpayUtil.getNoncestr()
dic.Add("product_id", nID);
dic.Add("time_stamp", WpPCHelper.TenpayUtil.getTimestamp());
#region sign===============================
Sign = helper.GetSign(dic);
LogUtil.WriteLog("sign：" + Sign);
dic.Add("sign", Sign);
#endregion
string urlce = WxPayHelper.FormatBizQueryParaMap(dic, false);//这里不要url编码
LogUtil.WriteLog("urlce：" + urlce);
string url = string.Format(@"sign={0}&appid={1}&mch_id={2}&product_id={3}&time_stamp={4}&nonce_str={5}"
, Sign, helper.GetAppId, helper.GetMch_Id, nID, WpPCHelper.TenpayUtil.getTimestamp(), WpPCHelper.TenpayUtil.getNoncestr().ToLower());
LogUtil.WriteLog("二维码地址生成" + url);
return("weixin://wxpay/bizpayurl?" + urlce);
/*------另一种方式--------*/
//var packageReqHandler = new RequestHandler(Context);
////初始化
//packageReqHandler.init();
////设置package订单参数 具体参数列表请参考官方pdf文档，请勿随意设置
//packageReqHandler.setParameter("appid", PayConfig.AppId);
//packageReqHandler.setParameter("mch_id", PayConfig.MchId);
//packageReqHandler.setParameter("nonce_str", WeiPay.TenpayUtil.getNoncestr().ToLower());
//packageReqHandler.setParameter("product_id", nID);
//packageReqHandler.setParameter("time_stamp", WeiPay.TenpayUtil.getTimestamp());
//#region sign===============================
//Sign = packageReqHandler.CreateMd5Sign("key", PayConfig.AppKey);
//LogUtil.WriteLog("WeiPay 页面 sign：" + Sign);
//packageReqHandler.setParameter("sign", Sign);
//#endregion
//string data = packageReqHandler.parseXML();
//LogUtil.WriteLog("WeiPay 页面 package（XML）：" + data);
//string url = string.Format(@"sign={0}&appid={1}&mch_id={2}&product_id={3}&time_stamp={4}&nonce_str={5}"
// , Sign, PayConfig.AppId, PayConfig.MchId, nID, WeiPay.TenpayUtil.getTimestamp(), WeiPay.TenpayUtil.getNoncestr().ToLower());
//LogUtil.WriteLog("WeiPay 页面 package（XML）：" + url);
//return "weixin://wxpay/bizpayurl?" + url;
}