/// <summary>
/// 传入ProductName，OrderNumber，TotalFee，TimeExpire，OpenId（可选），TradeType，NotifyUrl（可选）
/// </summary>
/// <param name="param"></param>
/// <param name="context"></param>
/// <returns></returns>
public static string GetUnifiedOrder(PayParam param = null)
{
if (param.TotalFee == null || string.IsNullOrWhiteSpace(param.ProductName) || string.IsNullOrWhiteSpace(param.OrderNumber) || string.IsNullOrWhiteSpace(param.TimeExpire) || param.TradeType == null)
{
return("参数错误");
}
var req = new RequestHandler();
req.SetKey(WeChatConfig.GetKey());
req.SetParameter("appid", WeChatConfig.GetAppId());
req.SetParameter("mch_id", WeChatConfig.GetMchId());
req.SetParameter("nonce_str", GetNoncestr());
req.SetParameter("body", param.ProductName);
req.SetParameter("out_trade_no", param.OrderNumber);
req.SetParameter("total_fee", param.TotalFee.ToString());
req.SetParameter("spbill_create_ip", IPHelper.GetVisitorIP());
req.SetParameter("time_start", DateTime.Now.ToString("yyyyMMddHHmmss"));
req.SetParameter("time_expire", param.TimeExpire);
req.SetParameter("notify_url",
string.IsNullOrWhiteSpace(param.NotifyUrl) ? WeChatConfig.GetNotify() : param.NotifyUrl);
req.SetParameter("trade_type", param.TradeType.ToString());
if (!string.IsNullOrWhiteSpace(param.OpenId))
{
req.SetParameter("openid", param.OpenId);
}
req.SetParameter("sign", req.CreateMd5Sign());
var reqXml = req.ParseXml();
var result = HttpHelper.Post(new HttpParam()
{
Url = ApiList.UnifiedOrderUrl,
PostParam = reqXml,
Encoding = HttpContext.Current.Request.ContentEncoding
});
return(result);
}
