public string MakeSign(WeChatPayOptions option)
{
if (option.IsDebug)
{
string url = "https://api.mch.weixin.qq.com/sandboxnew/pay/getsignkey";
WeChatPayData signkeyPayData = new WeChatPayData();
signkeyPayData.SetValue("mch_id", option.MchID); //商户号
signkeyPayData.SetValue("nonce_str", Guid.NewGuid().ToString("N").ToLower()); //随机字符串
signkeyPayData.SetValue("sign", signkeyPayData.MakeSign("MD5", option.Key));
string response = (new HttpService(option)).Post(signkeyPayData.ToXml(), url, false, 6); //调用HTTP通信接口提交数据
WeChatPayData result = new WeChatPayData();
result.FromXml(response);
if (result.GetValue("return_code")?.ToString() == "SUCCESS")
{
var key = result.GetValue("sandbox_signkey")?.ToString();
return(MakeSign(key));
}
throw new WeChatPayException("获取沙盒签名失败" + result.ToJson());
}
if ((this.GetValue("signType") ?? this.GetValue("sign_type"))?.ToString() != "MD5")
{
return(MakeSign(SIGN_TYPE_HMAC_SHA256, option.Key));
}
return(MakeSign(option.Key));
}
internal WeChatPayData UnifiedOrder(WeChatPayData inputObj, int timeOut = 6)
{
logger.LogInformation($"下单地址：{payHost}/pay/unifiedorder");
string url = payHost + "/pay/unifiedorder";
//检测必填参数
if (!inputObj.IsSet("out_trade_no"))
{
throw new WeChatPayException("缺少统一支付接口必填参数out_trade_no！");
}
else if (!inputObj.IsSet("body"))
{
throw new WeChatPayException("缺少统一支付接口必填参数body！");
}
else if (!inputObj.IsSet("total_fee"))
{
throw new WeChatPayException("缺少统一支付接口必填参数total_fee！");
}
else if (!inputObj.IsSet("trade_type"))
{
throw new WeChatPayException("缺少统一支付接口必填参数trade_type！");
}
//关联参数
if (inputObj.GetValue("trade_type").ToString() == "JSAPI" && !inputObj.IsSet("openid"))
{
throw new WeChatPayException("统一支付接口中，缺少必填参数openid！trade_type为JSAPI时，openid为必填参数！");
}
if (inputObj.GetValue("trade_type").ToString() == "NATIVE" && !inputObj.IsSet("product_id"))
{
throw new WeChatPayException("统一支付接口中，缺少必填参数product_id！trade_type为JSAPI时，product_id为必填参数！");
}
//异步通知url未设置，则使用配置文件中的url
if (!inputObj.IsSet("notify_url"))
{
throw new WeChatPayException("统一支付接口中，缺少必填参数notify_url！trade_type为JSAPI时，notify_url为必填参数！");
}
logger.LogDebug(inputObj.ToJson());
string xml = inputObj.ToXml();
logger.LogDebug("统一下单请求参数 : " + xml);
string response = httpService.Post(xml, url, false, timeOut);
logger.LogDebug("统一下单返回结果: " + response);
WeChatPayData result = new WeChatPayData();
result.FromXml(response);
if (!result.IsSet("appid") || !result.IsSet("prepay_id") || result.GetValue("prepay_id").ToString() == "")
{
throw new WeChatPayException("统一下单下单失败");
}
return(result);
}
private string GetPayParapeters(WeChatPayData unifiedOrder)
{
WeChatPayData jsApiParam = new WeChatPayData();
jsApiParam.SetValue("appId", option.AppId);
jsApiParam.SetValue("timeStamp", weChatPayApi.GenerateTimeStamp());
jsApiParam.SetValue("nonceStr", Guid.NewGuid().ToString("N").ToLower());
jsApiParam.SetValue("package", "prepay_id=" + unifiedOrder.GetValue("prepay_id"));
jsApiParam.SetValue("signType", "MD5");
jsApiParam.SetValue("paySign", jsApiParam.MakeSign(option));
string parameters = jsApiParam.ToJson();
logger.LogDebug("Get jsApiParam : " + parameters);
return(parameters);
}
