public string Post()
{
//通过code获取access_token
string code = Request.Query["code"];
string url = $"https://api.weixin.qq.com/sns/oauth2/access_token?appid=wxd001485d83e3628b&secret={WeChatConfig.APP_SECRET}&code={code}&grant_type=authorization_code";
_logger.Info("unifiedorder->请求access_token地址为：" + url);
var client = new RestClient(url);
var request = new RestRequest(Method.GET);
request.Timeout = 10000;
IRestResponse response = client.Execute(request);
_logger.Info("unifiedorder->请求access_token返回内容为：" + url);
string openid = JsonConvert.DeserializeObject <Data>(response.Content)?.openid;
_logger.Info("获取到openid为：" + openid);
_logger.Info("开始支付：" + url);
url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
client = new RestClient(url);
request = new RestRequest(Method.POST);
request.Timeout = 10000;
WeChatPayData payData = new WeChatPayData();
payData.SetValue("appid", WeChatConfig.APP_ID);
payData.SetValue("mch_id", WeChatConfig.MCH_ID);
payData.SetValue("nonce_str", payData.GenerateNonceStr());
payData.SetValue("body", "test");
payData.SetValue("out_trade_no", DateTime.Now.ToString("yyyyMMddHHmmss"));
payData.SetValue("total_fee", 1);
payData.SetValue("spbill_create_ip", "127.0.0.1");
payData.SetValue("notify_url", "http://hexiaodong.top/api/pay/notify_url");
payData.SetValue("trade_type", "JSAPI");
payData.SetValue("openid", openid); //"oTSBW5wX09Qwiidfk1sarDeXq-hY"
payData.SetValue("sign_type", WeChatPayData.SIGN_TYPE_HMAC_SHA256); //签名类型
payData.SetValue("sign", payData.MakeSign());
string xml = payData.ToXml();
request.AddJsonBody(xml);
response = client.Execute(request);
payData.FromXml(response.Content);
WeChatPayData jsApiParam = new WeChatPayData();
jsApiParam.SetValue("appId", WeChatConfig.APP_ID);
jsApiParam.SetValue("timeStamp", jsApiParam.GenerateTimeStamp());
jsApiParam.SetValue("nonceStr", jsApiParam.GenerateNonceStr());
jsApiParam.SetValue("package", "prepay_id=" + payData.GetValue("prepay_id"));
jsApiParam.SetValue("signType", WeChatPayData.SIGN_TYPE_HMAC_SHA256);
jsApiParam.SetValue("paySign", jsApiParam.MakeSign());
return(jsApiParam.ToJson());
}