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());
}
/// <summary>
/// 申请退款
/// @param WeChatPayData inputObj 提交给申请退款API的参数
/// @param int timeOut 超时时间
/// @throws WeChatPayException
/// @return 成功时返回接口调用结果，其他抛异常
/// </summary>
/// <param name="inputObj"></param>
/// <param name="timeOut"></param>
/// <returns></returns>
public static WeChatPayData Refund(WeChatPayData inputObj, int timeOut = 6)
{
string url = "https://api.mch.weixin.qq.com/secapi/pay/refund";
//检测必填参数
if (!inputObj.IsSet("out_trade_no") && !inputObj.IsSet("transaction_id"))
{
throw new WeChatPayException("退款申请接口中，out_trade_no、transaction_id至少填一个！");
}
else if (!inputObj.IsSet("out_refund_no"))
{
throw new WeChatPayException("退款申请接口中，缺少必填参数out_refund_no！");
}
else if (!inputObj.IsSet("total_fee"))
{
throw new WeChatPayException("退款申请接口中，缺少必填参数total_fee！");
}
else if (!inputObj.IsSet("refund_fee"))
{
throw new WeChatPayException("退款申请接口中，缺少必填参数refund_fee！");
}
else if (!inputObj.IsSet("op_user_id"))
{
throw new WeChatPayException("退款申请接口中，缺少必填参数op_user_id！");
}
inputObj.SetValue("appid", WeChatPayConfig.APPID); //公众账号ID
inputObj.SetValue("mch_id", WeChatPayConfig.MCHID); //商户号
inputObj.SetValue("nonce_str", Guid.NewGuid().ToString().Replace("-", "")); //随机字符串
inputObj.SetValue("sign", inputObj.MakeSign()); //签名
string xml = inputObj.ToXml();
var start = DateTime.Now;
LogHelper.Debug("WeChatPayAPI", "Refund request : " + xml);
string response = HttpService.Post(xml, url, true, timeOut);//调用HTTP通信接口提交数据到API
LogHelper.Debug("WeChatPayAPI", "Refund response : " + response);
var end = DateTime.Now;
int timeCost = (int)((end - start).TotalMilliseconds);//获得接口耗时
//将xml格式的结果转换为对象以返回
WeChatPayData result = new WeChatPayData();
result.FromXml(response);
ReportCostTime(url, timeCost, result);//测速上报
return(result);
}
private string GetJsApiParameters(string keyvalue, string appid, string prepayid)
{
WeChatPayData jsApiParam = new WeChatPayData();
jsApiParam.SetValue("appId", appid);
jsApiParam.SetValue("timeStamp", GenerateTimeStamp());
jsApiParam.SetValue("nonceStr", GenerateNonceStr());
jsApiParam.SetValue("package", "prepay_id=" + prepayid);
jsApiParam.SetValue("signType", "MD5");
jsApiParam.SetValue("paySign", jsApiParam.MakeSign(keyvalue));
string parameters = jsApiParam.ToJson();
return(parameters);
}
/// <summary>
/// 提交被扫支付API
/// 收银员使用扫码设备读取微信用户刷卡授权码以后，二维码或条码信息传送至商户收银台，
/// 由商户收银台或者商户后台调用该接口发起支付。
/// @param WeChatPayData inputObj 提交给被扫支付API的参数
/// @param int timeOut 超时时间
/// @throws WeChatPayException
/// @return 成功时返回调用结果，其他抛异常/
/// </summary>
/// <param name="inputObj"></param>
/// <param name="timeOut"></param>
/// <returns></returns>
public static WeChatPayData Micropay(WeChatPayData inputObj, int timeOut = 10)
{
string url = "https://api.mch.weixin.qq.com/pay/micropay";
//检测必填参数
if (!inputObj.IsSet("body"))
{
throw new WeChatPayException("提交被扫支付API接口中，缺少必填参数body！");
}
else if (!inputObj.IsSet("out_trade_no"))
{
throw new WeChatPayException("提交被扫支付API接口中，缺少必填参数out_trade_no！");
}
else if (!inputObj.IsSet("total_fee"))
{
throw new WeChatPayException("提交被扫支付API接口中，缺少必填参数total_fee！");
}
else if (!inputObj.IsSet("auth_code"))
{
throw new WeChatPayException("提交被扫支付API接口中，缺少必填参数auth_code！");
}
inputObj.SetValue("spbill_create_ip", WeChatPayConfig.IP); //终端ip
inputObj.SetValue("appid", WeChatPayConfig.APPID); //公众账号ID
inputObj.SetValue("mch_id", WeChatPayConfig.MCHID); //商户号
inputObj.SetValue("nonce_str", Guid.NewGuid().ToString().Replace("-", "")); //随机字符串
inputObj.SetValue("sign", inputObj.MakeSign()); //签名
string xml = inputObj.ToXml();
var start = DateTime.Now;//请求开始时间
LogHelper.Debug("WeChatPayAPI", "MicroPay request : " + xml);
string response = HttpService.Post(xml, url, false, timeOut);//调用HTTP通信接口以提交数据到API
LogHelper.Debug("WeChatPayAPI", "MicroPay response : " + response);
var end = DateTime.Now;
int timeCost = (int)((end - start).TotalMilliseconds);//获得接口耗时
//将xml格式的结果转换为对象以返回
WeChatPayData result = new WeChatPayData();
result.FromXml(response);
ReportCostTime(url, timeCost, result);//测速上报
return(result);
}
/// <summary>
/// 测速上报接口实现
/// @param WeChatPayData inputObj 提交给测速上报接口的参数
/// @param int timeOut 测速上报接口超时时间
/// @throws WeChatPayException
/// @return 成功时返回测速上报接口返回的结果，其他抛异常
/// </summary>
/// <param name="inputObj"></param>
/// <param name="timeOut"></param>
/// <returns></returns>
public static WeChatPayData Report(WeChatPayData inputObj, int timeOut = 1)
{
string url = "https://api.mch.weixin.qq.com/payitil/report";
//检测必填参数
if (!inputObj.IsSet("interface_url"))
{
throw new WeChatPayException("接口URL，缺少必填参数interface_url！");
}
if (!inputObj.IsSet("return_code"))
{
throw new WeChatPayException("返回状态码，缺少必填参数return_code！");
}
if (!inputObj.IsSet("result_code"))
{
throw new WeChatPayException("业务结果，缺少必填参数result_code！");
}
if (!inputObj.IsSet("user_ip"))
{
throw new WeChatPayException("访问接口IP，缺少必填参数user_ip！");
}
if (!inputObj.IsSet("execute_time_"))
{
throw new WeChatPayException("接口耗时，缺少必填参数execute_time_！");
}
inputObj.SetValue("appid", WeChatPayConfig.APPID); //公众账号ID
inputObj.SetValue("mch_id", WeChatPayConfig.MCHID); //商户号
inputObj.SetValue("user_ip", WeChatPayConfig.IP); //终端ip
inputObj.SetValue("time", DateTime.Now.ToString("yyyyMMddHHmmss")); //商户上报时间
inputObj.SetValue("nonce_str", GenerateNonceStr()); //随机字符串
inputObj.SetValue("sign", inputObj.MakeSign()); //签名
string xml = inputObj.ToXml();
LogHelper.Info("WeChatPayAPI", "Report request : " + xml);
string response = HttpService.Post(xml, url, false, timeOut);
LogHelper.Info("WeChatPayAPI", "Report response : " + response);
WeChatPayData result = new WeChatPayData();
result.FromXml(response);
return(result);
}
public string GetPrePayUrl(string out_trade_no)
{
Log.Info("微信端二维码生成开始...");
WeChatPayData data = new WeChatPayData();
data.SetValue("appid", BasicConfig.WeChat_AppId); //公众帐号id
data.SetValue("mch_id", BasicConfig.WeChat_MchId); //商户号
data.SetValue("nonce_str", GenerateNonceStr()); //随机字符串
data.SetValue("product_id", out_trade_no); //商品ID
data.SetValue("time_stamp", DateTimeUtil.DateTimeToUnixTimestamp(DateTime.Now)); //时间戳
data.SetValue("sign", data.MakeSign(BasicConfig.WeChat_AppKey)); //签名
string str = ToUrlParams(data.GetValues()); //转换为URL串
string url = "weixin://wxpay/bizpayurl?" + str;
Log.Info("微信端二维码生成结束,二维码Url : " + url);
return(url);
}
/// <summary>
/// 根据预支付回话标示prepay_id构造JS参数
/// </summary>
/// <param name="prepayID"></param>
/// <returns></returns>
public static string MakeWXPayJsParam(string prepayID)
{
//返回微信客户端调用JS支付所需的参数
string wxJsApiParam = string.Empty;
try
{
//* 从统一下单成功返回的数据中获取微信浏览器调起jsapi支付所需的参数，
//* 微信浏览器调起JSAPI时的输入参数格式如下：
//* {
//* "appId" : "wx2421b1c4370ec43b", //公众号名称，由商户传入
//* "timeStamp":" 1395712654", //时间戳，自1970年以来的秒数
//* "nonceStr" : "e61463f8efa94090b1f366cccfbbb444", //随机串
//* "package" : "prepay_id=u802345jgfjsdfgsdg888",
//* "signType" : "MD5", //微信签名方式:
//* "paySign" : "70EA570631E4BB79628FBCA90534C63FF7FADD89" //微信签名
//* }
//* @return string 微信浏览器调起JSAPI时的输入参数，json格式可以直接做参数用
//* 更详细的说明请参考网页端调起支付API：http://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=7_7
WeChatPayData jsPayData = new WeChatPayData();
jsPayData.SetValue("appId", Config.APPID);
jsPayData.SetValue("timeStamp", WeChatPayData.MakeTimeStamp());
jsPayData.SetValue("nonceStr", WeChatPayData.MakeNonceStr());
jsPayData.SetValue("package", "prepay_id=" + prepayID);
jsPayData.SetValue("signType", "MD5");
jsPayData.SetValue("paySign", jsPayData.MakeSign());
wxJsApiParam = jsPayData.ToJson();
Log.Debug("jsApiParam", wxJsApiParam);
}
catch (Exception ex)
{
Log.Error("WxPayAPI", ex.Message);
throw ex;
}
return(wxJsApiParam);
}
/// <summary>
/// 下载对账单
/// @param WeChatPayData inputObj 提交给下载对账单API的参数
/// @param int timeOut 接口超时时间
/// @throws WeChatPayException
/// @return 成功时返回，其他抛异常
/// </summary>
/// <param name="inputObj"></param>
/// <param name="timeOut"></param>
/// <returns></returns>
public static WeChatPayData DownloadBill(WeChatPayData inputObj, int timeOut = 6)
{
string url = "https://api.mch.weixin.qq.com/pay/downloadbill";
//检测必填参数
if (!inputObj.IsSet("bill_date"))
{
throw new WeChatPayException("对账单接口中，缺少必填参数bill_date！");
}
inputObj.SetValue("appid", WeChatPayConfig.APPID); //公众账号ID
inputObj.SetValue("mch_id", WeChatPayConfig.MCHID); //商户号
inputObj.SetValue("nonce_str", GenerateNonceStr()); //随机字符串
inputObj.SetValue("sign", inputObj.MakeSign()); //签名
string xml = inputObj.ToXml();
LogHelper.Debug("WeChatPayAPI", "DownloadBill request : " + xml);
string response = HttpService.Post(xml, url, false, timeOut);//调用HTTP通信接口以提交数据到API
LogHelper.Debug("WeChatPayAPI", "DownloadBill result : " + response);
WeChatPayData result = new WeChatPayData();
//若接口调用失败会返回xml格式的结果
if (response.Substring(0, 5) == "<xml>")
{
result.FromXml(response);
}
//接口调用成功则返回非xml格式的数据
else
{
result.SetValue("result", response);
}
return(result);
}
/// <summary>
/// 查询退款
/// 提交退款申请后，通过该接口查询退款状态。退款有一定延时，
/// 用零钱支付的退款20分钟内到账，银行卡支付的退款3个工作日后重新查询退款状态。
/// out_refund_no、out_trade_no、transaction_id、refund_id四个参数必填一个
/// @param WeChatPayData inputObj 提交给查询退款API的参数
/// @param int timeOut 接口超时时间
/// @throws WeChatPayException
/// @return 成功时返回，其他抛异常
/// </summary>
/// <param name="inputObj"></param>
/// <param name="timeOut"></param>
/// <returns></returns>
public static WeChatPayData RefundQuery(WeChatPayData inputObj, int timeOut = 6)
{
string url = "https://api.mch.weixin.qq.com/pay/refundquery";
//检测必填参数
if (!inputObj.IsSet("out_refund_no") && !inputObj.IsSet("out_trade_no") &&
!inputObj.IsSet("transaction_id") && !inputObj.IsSet("refund_id"))
{
throw new WeChatPayException("退款查询接口中，out_refund_no、out_trade_no、transaction_id、refund_id四个参数必填一个！");
}
inputObj.SetValue("appid", WeChatPayConfig.APPID); //公众账号ID
inputObj.SetValue("mch_id", WeChatPayConfig.MCHID); //商户号
inputObj.SetValue("nonce_str", GenerateNonceStr()); //随机字符串
inputObj.SetValue("sign", inputObj.MakeSign()); //签名
string xml = inputObj.ToXml();
var start = DateTime.Now;//请求开始时间
LogHelper.Debug("WeChatPayAPI", "RefundQuery request : " + xml);
string response = HttpService.Post(xml, url, false, timeOut);//调用HTTP通信接口以提交数据到API
LogHelper.Debug("WeChatPayAPI", "RefundQuery response : " + response);
var end = DateTime.Now;
int timeCost = (int)((end - start).TotalMilliseconds);//获得接口耗时
//将xml格式的结果转换为对象以返回
WeChatPayData result = new WeChatPayData();
result.FromXml(response);
ReportCostTime(url, timeCost, result);//测速上报
return(result);
}
/// <summary>
/// 统一下单
/// @param WeChatPayData inputObj 提交给统一下单API的参数
/// @param int timeOut 超时时间
/// @throws WeChatPayException
/// @return 成功时返回，其他抛异常
/// </summary>
/// <param name="inputObj"></param>
/// <param name="timeOut"></param>
/// <returns></returns>
public static WeChatPayData UnifiedOrder(WeChatPayData inputObj, int timeOut = 6)
{
string url = "https://api.mch.weixin.qq.com/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"))
{
inputObj.SetValue("notify_url", WeChatPayConfig.NOTIFY_URL);//异步通知url
}
inputObj.SetValue("appid", WeChatPayConfig.APPID); //公众账号ID
inputObj.SetValue("mch_id", WeChatPayConfig.MCHID); //商户号
inputObj.SetValue("spbill_create_ip", WeChatPayConfig.IP); //终端ip
inputObj.SetValue("nonce_str", GenerateNonceStr()); //随机字符串
//签名
inputObj.SetValue("sign", inputObj.MakeSign());
string xml = inputObj.ToXml();
var start = DateTime.Now;
LogHelper.Debug("WeChatPayAPI", "UnfiedOrder request : " + xml);
string response = HttpService.Post(xml, url, false, timeOut);
LogHelper.Debug("WeChatPayAPI", "UnfiedOrder response : " + response);
var end = DateTime.Now;
int timeCost = (int)((end - start).TotalMilliseconds);
WeChatPayData result = new WeChatPayData();
result.FromXml(response);
ReportCostTime(url, timeCost, result);//测速上报
return(result);
}
private WeChatPayData UnifiedOrder(WeChatPayData inputObj, int timeOut = 6)
{
try
{
string url = WrapConfig.UnifiedorderUrl;
//检测必填参数
if (!inputObj.IsSet("out_trade_no"))
{
throw new Exception("缺少统一支付接口必填参数out_trade_no！");
}
else if (!inputObj.IsSet("body"))
{
throw new Exception("缺少统一支付接口必填参数body！");
}
else if (!inputObj.IsSet("total_fee"))
{
throw new Exception("缺少统一支付接口必填参数total_fee！");
}
else if (!inputObj.IsSet("trade_type"))
{
throw new Exception("缺少统一支付接口必填参数trade_type！");
}
//JSAPI关联参数
if (inputObj.GetValue("trade_type").ToString() == "JSAPI" && !inputObj.IsSet("openid"))
{
throw new Exception("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！");
}
//NATIVE关联参数
if (inputObj.GetValue("trade_type").ToString() == "NATIVE" && !inputObj.IsSet("product_id"))
{
throw new Exception("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！");
}
//回调url
if (!inputObj.IsSet("notify_url"))
{
throw new Exception("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！");
}
//支付场景
string trade_type = inputObj.GetValue("trade_type").ToString();
string keyvalue = "";
if (trade_type == "JSAPI")
{
inputObj.SetValue("appid", BasicConfig.Sprogram_AppId); //公众账号ID
inputObj.SetValue("mch_id", BasicConfig.WeChat_MchId); //商户号
if (trade_type == "JSAPI")
{
keyvalue = BasicConfig.WeChat_AppKey;
}
}
inputObj.SetValue("nonce_str", GenerateNonceStr()); //随机字符串
inputObj.SetValue("sign", inputObj.MakeSign(trade_type, keyvalue)); //签名
string xml = inputObj.ToXml();
//Log.Info("xml:" + xml);
string response = WHttpUtil.Post(xml, url, false, timeOut);
WeChatPayData result = new WeChatPayData();
result.LoadXml(response, trade_type, keyvalue);
return(result);
}
catch (Exception ex)
{
throw new Exception(ex.ToString());
}
}
/// <summary>
/// 微信支付，关闭订单接口
/// 以下情况需要调用关单接口：商户订单支付失败需要生成新单号重新发起支付，要对原订单号调用关单，避免重复支付；系统下单后，用户支付超时，系统退出不再受理，避免用户继续，请调用关单接口。
/// 注意：订单生成后不能马上调用关单接口，最短调用时间间隔为5分钟。
/// API接口参考：https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_3
/// </summary>
/// <param name="orderID"></param>
/// <returns></returns>
public static WeChatPayData CloseOrder(string orderID)
{
if (string.IsNullOrEmpty(orderID))
{
throw new ArgumentNullException("orderID不能为空");
}
//微信支付消息发送报文
WeChatPayData sendPayData = new WeChatPayData();
//微信支付消息接收报文
WeChatPayData recvPayData = new WeChatPayData();
try
{
string url = "https://api.mch.weixin.qq.com/pay/closeorder";
sendPayData.SetValue("appid", Config.APPID); //公众账号ID
sendPayData.SetValue("mch_id", Config.MCHID); //商户号
sendPayData.SetValue("nonce_str", WeChatPayData.MakeNonceStr()); //随机字符串
sendPayData.SetValue("out_trade_no", orderID); //商户订单号
sendPayData.SetValue("sign", sendPayData.MakeSign()); //签名
string sendMsg = sendPayData.ToXml();
string recvMsg = HttpService.Post(sendMsg, url, false, Config.WeChatAPITimeout);
recvPayData.FromXml(recvMsg);
//校验返回状态码
if (recvPayData.IsSet("return_code") && recvPayData.GetValue("return_code").ToString().ToUpper() == "SUCCESS")
{
//当return_code为SUCCESS，才有sign参数返回
if (!recvPayData.CheckSign())
{
throw new Exception("sign签名校验错误");
}
//return_code和result_code同时为SUCCESS，且sign签名正确，则返回此消息数据
if (recvPayData.IsSet("result_code") && recvPayData.GetValue("result_code").ToString().ToUpper() == "SUCCESS")
{
return(recvPayData);
}
else //result_code返回FAIL，可能微信支付中此订单号不存在、微信支付系统异常
{
if (recvPayData.IsSet("err_code") && recvPayData.IsSet("err_code_des"))
{
throw new Exception(recvPayData.GetValue("err_code").ToString() + ":" + recvPayData.GetValue("err_code_des").ToString());
}
}
}
else //return_code返回FAIL，可能签名失败、参数格式校验错误
{
if (recvPayData.IsSet("return_msg"))
{
throw new Exception(recvPayData.GetValue("return_msg").ToString());
}
}
}
catch (Exception ex)
{
Log.Error("WxPayAPI", ex.Message);
}
return(recvPayData);
}
/// <summary>
/// 根据商户订单号查询订单接口，参考：https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_2
/// 该接口提供所有微信支付订单的查询，商户可以通过该接口主动查询订单状态，完成下一步的业务逻辑。
/// </summary>
/// <param name="out_trade_no"></param>
/// <returns></returns>
public static WeChatPayData OrderQueryByOutTradeNo(string out_trade_no)
{
if (string.IsNullOrEmpty(out_trade_no))
{
throw new ArgumentNullException("查询订单，缺少out_trade_no");
}
//微信支付消息发送报文
WeChatPayData sendPayData = new WeChatPayData();
//微信支付消息接收报文
WeChatPayData recvPayData = new WeChatPayData();
try
{
string url = "https://api.mch.weixin.qq.com/pay/orderquery";
sendPayData.SetValue("appid", Config.APPID); //公众账号ID
sendPayData.SetValue("mch_id", Config.MCHID); //商户号
sendPayData.SetValue("out_trade_no", out_trade_no); //商户订单号
sendPayData.SetValue("nonce_str", WeChatPayData.MakeNonceStr()); //随机字符串
sendPayData.SetValue("sign", sendPayData.MakeSign()); //签名
string sendMsg = sendPayData.ToXml();
var start = DateTime.Now;
Log.Debug("JsApiPay", "OrderQuery request : " + sendMsg);
string recvMsg = HttpService.Post(sendMsg, url, false, Config.WeChatAPITimeout);//调用HTTP通信接口提交数据
Log.Debug("JsApiPay", "OrderQuery response : " + recvMsg);
var end = DateTime.Now;
int timeCost = (int)((end - start).TotalMilliseconds);//获得接口耗时
Log.Debug("JsApiPay", "OrderQuery 接口耗时 : " + timeCost);
//将xml格式的数据转化为对象以返回
recvPayData.FromXml(recvMsg);
//校验微信接口返回值return_code和result_code
if (recvPayData.IsSet("return_code") && recvPayData.GetValue("return_code").ToString().ToUpper() == "SUCCESS")
{
if (!recvPayData.CheckSign())
{
throw new Exception("微信“按out_trade_no查询订单”消息sign签名校验错误");
}
//return_code和result_code同时为SUCCESS，且sign签名正确，则返回此消息数据
if (recvPayData.IsSet("result_code") && recvPayData.GetValue("result_code").ToString().ToUpper() == "SUCCESS")
{
return(recvPayData);
}
else //result_code返回FAIL，可能微信支付中此订单号不存在、微信支付系统异常
{
if (recvPayData.IsSet("err_code") && recvPayData.IsSet("err_code_des"))
{
throw new Exception(recvPayData.GetValue("err_code").ToString() + ":" + recvPayData.GetValue("err_code_des").ToString());
}
}
}
else //return_code返回FAIL，可能签名失败、参数格式校验错误
{
if (recvPayData.IsSet("return_msg"))
{
throw new Exception(recvPayData.GetValue("return_msg").ToString());
}
}
}
catch (Exception ex)
{
Log.Error("WxPayAPI", ex.Message);
throw ex;
}
return(null);
}
/// <summary>
/// 微信支付统一下单，接口参考：https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=9_1
/// 除被扫支付场景以外，商户系统先调用该接口在微信支付服务后台生成预支付交易单，返回正确的预支付交易回话标识prepay_id，有效期2小时，再按扫码、JSAPI、APP等不同场景生成交易串调起支付。
/// </summary>
/// <param name="po"></param>
/// <param name="jStateCode"></param>
/// <returns>正常返回prepay_id，jStateCode为空；如果有错误发生，则prepay_id为空，jStateCode有值</returns>
public static string CallUnifiedOrderAPI(ProductOrder po, out WeChatPayData stateCode)
{
string prepayID = string.Empty;
//统一下单API返回的状态码
stateCode = new WeChatPayData();
try
{
WeChatPayData sendPayData;
WeChatPayData recvPayData;
//生成统一下单接口报文
string url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
sendPayData = new WeChatPayData();
sendPayData.SetValue("appid", Config.APPID); //必填
sendPayData.SetValue("mch_id", Config.MCHID); //必填
sendPayData.SetValue("device_info", "WEB");
sendPayData.SetValue("nonce_str", WeChatPayData.MakeNonceStr()); //必填
sendPayData.SetValue("body", po.ProductNames); //必填
sendPayData.SetValue("detail", po.OrderDetails);
sendPayData.SetValue("attach", "订单自定义数据");
sendPayData.SetValue("out_trade_no", po.OrderID); //必填
sendPayData.SetValue("fee_type", "CNY");
sendPayData.SetValue("total_fee", (po.OrderPrice * 100).ToString("F0")); //必填，单位为【分】
sendPayData.SetValue("spbill_create_ip", po.ClientIP); //必填
sendPayData.SetValue("time_start", DateTime.Now.ToString("yyyyMMddHHmmss"));
sendPayData.SetValue("time_expire", DateTime.Now.AddMinutes(Config.WeChatOrderExpire).ToString("yyyyMMddHHmmss")); //最短失效时间间隔必须大于5分钟，可为空，默认2小时，也即prepay_id有效期
sendPayData.SetValue("goods_tag", "商品标记，代金券或立减优惠功能的参数");
sendPayData.SetValue("notify_url", Config.PayNotifyUrl); //必填，微信支付成功后异步通知url
sendPayData.SetValue("trade_type", "JSAPI"); //必填
sendPayData.SetValue("openid", po.Purchaser.OpenID); //trade_type = JSAPI，此参数必传
//生成报文签名
sendPayData.SetValue("sign", sendPayData.MakeSign()); //必填
//生成接口所需的XML报文格式
string sendMsg = sendPayData.ToXml();
var start = DateTime.Now;
Log.Debug("JsApiPay", "UnfiedOrder request" + sendMsg);
//调用微信支付统一下单接口，并获取返回报文
string recvMsg = HttpService.Post(sendMsg, url, false, Config.WeChatAPITimeout);
Log.Debug("JsApiPay", "UnfiedOrder response" + recvMsg);
var end = DateTime.Now;
int timeCost = (int)((end - start).TotalMilliseconds);
Log.Debug("JsApiPay", "UnfiedOrder time cost" + timeCost.ToString());
//recvMsg = "<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg><appid><![CDATA[wxa1ce5cd8d4bc5b3f]]></appid><mch_id><![CDATA[1296478401]]></mch_id><device_info><![CDATA[WEB]]></device_info><nonce_str><![CDATA[vjqH6K12oBv9iEyW]]></nonce_str><sign><![CDATA[42916A4F50AAD1AA1B9A3D222371EBAE]]></sign><result_code><![CDATA[SUCCESS]]></result_code><prepay_id><![CDATA[wx20151223230752785abc1a610183113624]]></prepay_id><trade_type><![CDATA[JSAPI]]></trade_type></xml>";
if (string.IsNullOrEmpty(recvMsg))
{
Log.Error("JsApiPay", "UnfiedOrder接口没有返回数据");
throw new Exception("UnfiedOrder接口没有返回数据");
}
recvPayData = new WeChatPayData();
//根据XML返回报文生成返回报文对象
recvPayData.FromXml(recvMsg);
//校验通信标示
if (recvPayData.IsSet("return_code") && recvPayData.GetValue("return_code").ToString().ToUpper() == "SUCCESS")
{
//当return_code为SUCCESS，才有sign参数返回，校验对方报文签名
if (!recvPayData.CheckSign())
{
stateCode.SetValue("return_code", "FAIL");
stateCode.SetValue("return_msg", "微信支付返回的签名错误，请在安全的网络环境中进行支付！");
Log.Error("CallUnifiedOrderAPI::SIGN签名错误", recvPayData.GetValue("sign").ToString());
}
else
{
//校验业务结果result_code也是SUCCESS，才有prepay_id返回
if (recvPayData.IsSet("result_code") && recvPayData.GetValue("result_code").ToString().ToUpper() == "SUCCESS" && recvPayData.IsSet("prepay_id"))
{
//获取prepay_id
prepayID = recvPayData.GetValue("prepay_id").ToString();
}
else //可能是订单已支付、已关闭、订单号重复等错误原因
{
stateCode.SetValue("result_code", "FAIL");
stateCode.SetValue("err_code", recvPayData.GetValue("err_code").ToString());
stateCode.SetValue("err_code_des", recvPayData.GetValue("err_code_des").ToString());
Log.Error("CallUnifiedOrderAPI", stateCode.ToJson());
}
}
}
else //可能为我方报文sign签名错误或参数格式错误
{
stateCode.SetValue("return_code", "FAIL");
stateCode.SetValue("return_msg", recvPayData.GetValue("return_msg").ToString());
Log.Error("CallUnifiedOrderAPI", stateCode.ToJson());
}
}
catch (Exception ex)
{
Log.Error("WxPayAPI", ex.Message);
throw ex;
}
return(prepayID);
}