/// <summary>
/// 申请退款完整业务流程逻辑
/// Refund.Run
/// </summary>
/// <param name="transaction_id">微信订单号（优先使用）</param>
/// <param name="out_trade_no">商户订单号</param>
/// <param name="total_fee">订单总金额</param>
/// <param name="refund_fee">退款金额</param>
/// <returns>退款结果（xml格式）</returns>
public static string Refund(string transaction_id, string out_trade_no, string total_fee, string refund_fee)
{
var methodString = TypeString + ".Refund";
WxPayLog.Info(methodString, "Refund is processing...");
WxPayData data = new WxPayData();
if (!string.IsNullOrEmpty(transaction_id))//微信订单号存在的条件下，则已微信订单号为准
{
data.SetValue("transaction_id", transaction_id);
}
else//微信订单号不存在，才根据商户订单号去退款
{
data.SetValue("out_trade_no", out_trade_no);
}
data.SetValue("total_fee", int.Parse(total_fee)); //订单总金额
data.SetValue("refund_fee", int.Parse(refund_fee)); //退款金额
data.SetValue("out_refund_no", WxPayApi.GenerateOutTradeNo()); //随机生成商户退款单号
data.SetValue("op_user_id", WxPayConfig.MCHID); //操作员，默认为商户号
WxPayData result = WxPayApi.Refund(data); //提交退款申请给API，接收返回数据
WxPayLog.Info(methodString, "Refund process complete, result : " + result.ToXml());
return(result.ToPrintStr());
}
/// <summary>
/// 退款查询完整业务流程逻辑
/// RefundQuery.Run
/// </summary>
/// <param name="refund_id">微信退款单号（优先使用）</param>
/// <param name="out_refund_no">商户退款单号</param>
/// <param name="transaction_id">微信订单号</param>
/// <param name="out_trade_no">商户订单号</param>
/// <returns>退款查询结果（xml格式）</returns>
public static string RefundQuery(string refund_id, string out_refund_no, string transaction_id, string out_trade_no)
{
var methodString = TypeString + ".RefundQuery";
WxPayLog.Info(methodString, "RefundQuery is processing...");
WxPayData data = new WxPayData();
if (!string.IsNullOrEmpty(refund_id))
{
data.SetValue("refund_id", refund_id);//微信退款单号，优先级最高
}
else if (!string.IsNullOrEmpty(out_refund_no))
{
data.SetValue("out_refund_no", out_refund_no);//商户退款单号，优先级第二
}
else if (!string.IsNullOrEmpty(transaction_id))
{
data.SetValue("transaction_id", transaction_id);//微信订单号，优先级第三
}
else
{
data.SetValue("out_trade_no", out_trade_no);//商户订单号，优先级最低
}
WxPayData result = WxPayApi.RefundQuery(data);//提交退款查询给API，接收返回数据
WxPayLog.Info(methodString, "RefundQuery process complete, result : " + result.ToXml());
return(result.ToPrintStr());
}
/// <summary>
/// 下载对账单完整业务流程逻辑
/// DownloadBill.Run
/// </summary>
/// <param name="bill_date">下载对账单的日期（格式：20140603，一次只能下载一天的对账单）</param>
/// <param name="bill_type">
/// 账单类型
/// ALL，返回当日所有订单信息，默认值
/// SUCCESS，返回当日成功支付的订单
/// REFUND，返回当日退款订单
/// REVOKED，已撤销的订单
/// </param>
/// <returns>对账单结果（xml格式）</returns>
public static string DownloadBill(string bill_date, string bill_type)
{
var methodString = TypeString + ".DownloadBill";
WxPayLog.Info(methodString, "DownloadBill is processing...");
WxPayData data = new WxPayData();
data.SetValue("bill_date", bill_date); //账单日期
data.SetValue("bill_type", bill_type); //账单类型
WxPayData result = WxPayApi.DownloadBill(data); //提交下载对账单请求给API，接收返回结果
WxPayLog.Info(methodString, "DownloadBill process complete, result : \n" + result.ToXml());
return(result.ToPrintStr());
}
/**
*
* 测速上报接口实现
* @param WxPayData 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 WxPayException
* @return 成功时返回测速上报接口返回的结果，其他抛异常
*/
public static WxPayData Report(WxPayData 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 WxPayException("接口URL，缺少必填参数interface_url！");
}
if (!inputObj.IsSet("return_code"))
{
throw new WxPayException("返回状态码，缺少必填参数return_code！");
}
if (!inputObj.IsSet("result_code"))
{
throw new WxPayException("业务结果，缺少必填参数result_code！");
}
if (!inputObj.IsSet("user_ip"))
{
throw new WxPayException("访问接口IP，缺少必填参数user_ip！");
}
if (!inputObj.IsSet("execute_time_"))
{
throw new WxPayException("接口耗时，缺少必填参数execute_time_！");
}
inputObj.SetValue("appid", WxPayConfig.APPID); //公众账号ID
inputObj.SetValue("mch_id", WxPayConfig.MCHID); //商户号
inputObj.SetValue("user_ip", WxPayConfig.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();
WxPayLog.Info("WxPayApi", "Report request : " + xml);
string response = WxPayHttpService.Post(xml, url, false, timeOut);
WxPayLog.Info("WxPayApi", "Report response : " + response);
WxPayData result = new WxPayData();
result.FromXml(response);
return(result);
}
public static WxPayData GetNotifyData(HttpContextBase httpContext)
{
var methodString = TypeString + ".GetNotifyData";
//接收从微信后台POST过来的数据
Stream inputStream = httpContext.Request.InputStream;
int count = 0;
byte[] buffer = new byte[1024];
StringBuilder builder = new StringBuilder();
while ((count = inputStream.Read(buffer, 0, 1024)) > 0)
{
builder.Append(Encoding.UTF8.GetString(buffer, 0, count));
}
inputStream.Flush();
inputStream.Close();
inputStream.Dispose();
var builderString = builder.ToString();
WxPayLog.Info(methodString, "Receive data from WeChat : " + builderString);
//转换数据格式并验证签名
WxPayData data = new WxPayData();
try
{
data.FromXml(builderString);
}
catch (WxPayException ex)
{
//若签名错误，则立即返回结果给微信支付后台
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", ex.Message);
var resXml = res.ToXml();
WxPayLog.Error(methodString, "Sign check error : " + resXml);
httpContext.Response.Write(resXml);
httpContext.Response.End();
}
WxPayLog.Info(methodString, "Check sign success");
return(data);
}
/// <summary>
/// 生成扫描支付模式一URL
/// NativePay.GetPrePayUrl
/// </summary>
/// <param name="productId">商品ID</param>
/// <returns>模式一URL</returns>
public static string GetNativePrePayUrl(string productId)
{
var methodString = TypeString + ".GetNativePrePayUrl";
WxPayLog.Info(methodString, "Native pay mode 1 url is producing...");
WxPayData data = new WxPayData();
data.SetValue("appid", WxPayConfig.APPID); //公众帐号id
data.SetValue("mch_id", WxPayConfig.MCHID); //商户号
data.SetValue("time_stamp", WxPayApi.GenerateTimeStamp()); //时间戳
data.SetValue("nonce_str", WxPayApi.GenerateNonceStr()); //随机字符串
data.SetValue("product_id", productId); //商品ID
data.SetValue("sign", data.MakeSign()); //签名
string str = string.Join("&", data.GetValues().Select(s => string.Format("{0}={1}", s.Key, s.Value))); //转换为URL串
string url = "weixin://wxpay/bizpayurl?" + str;
WxPayLog.Info(methodString, "Get native pay mode 1 url : " + url);
return(url);
}
/// <summary>
/// 订单查询完整业务流程逻辑
/// OrderQuery.Run
/// </summary>
/// <param name="transaction_id">微信订单号（优先使用）</param>
/// <param name="out_trade_no">商户订单号</param>
/// <returns>订单查询结果（xml格式）</returns>
public static string OrderQuery(string transaction_id, string out_trade_no)
{
WxPayLog.Info("OrderQuery", "OrderQuery is processing...");
WxPayData data = new WxPayData();
if (!string.IsNullOrEmpty(transaction_id))//如果微信订单号存在，则以微信订单号为准
{
data.SetValue("transaction_id", transaction_id);
}
else//微信订单号不存在，才根据商户订单号去查单
{
data.SetValue("out_trade_no", out_trade_no);
}
WxPayData result = WxPayApi.OrderQuery(data);//提交订单查询请求给API，接收返回数据
WxPayLog.Info("OrderQuery", "OrderQuery process complete, result : " + result.ToXml());
return(result.ToPrintStr());
}
public static void ProcessResultNotify(HttpContextBase httpContext)
{
var methodString = TypeString + ".ProcessResultNotify";
WxPayData notifyData = GetNotifyData(httpContext);
//检查支付结果中transaction_id是否存在
if (!notifyData.IsSet("transaction_id"))
{
//若transaction_id不存在，则立即返回结果给微信支付后台
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", "支付结果中微信订单号不存在");
WxPayLog.Error(methodString, "The Pay result is error : " + res.ToXml());
httpContext.Response.Write(res.ToXml());
httpContext.Response.End();
}
string transaction_id = notifyData.GetValue("transaction_id").ToString();
//查询订单，判断订单真实性
if (!QueryResultOrder(transaction_id))
{
//若订单查询失败，则立即返回结果给微信支付后台
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", "订单查询失败");
WxPayLog.Error(methodString, "Order query failure : " + res.ToXml());
httpContext.Response.Write(res.ToXml());
httpContext.Response.End();
}
//查询订单成功
else
{
WxPayData res = new WxPayData();
res.SetValue("return_code", "SUCCESS");
res.SetValue("return_msg", "OK");
WxPayLog.Info(methodString, "order query success : " + res.ToXml());
httpContext.Response.Write(res.ToXml());
httpContext.Response.End();
}
}
/// <summary>
/// 生成直接支付url，支付url有效期为2小时,模式二
/// NativePay.GetPayUrl
/// </summary>
/// <param name="productId">商品ID</param>
/// <returns>模式二URL</returns>
public static string GetNativePayUrl(string productId)
{
var methodString = TypeString + ".GetNativePrePayUrl";
WxPayLog.Info(methodString, "Native pay mode 2 url is producing...");
WxPayData data = new WxPayData();
data.SetValue("body", "test"); //商品描述
data.SetValue("attach", "test"); //附加数据
data.SetValue("out_trade_no", WxPayApi.GenerateOutTradeNo()); //随机字符串
data.SetValue("total_fee", 1); //总金额
data.SetValue("time_start", DateTime.Now.ToString("yyyyMMddHHmmss")); //交易起始时间
data.SetValue("time_expire", DateTime.Now.AddMinutes(10).ToString("yyyyMMddHHmmss")); //交易结束时间
data.SetValue("goods_tag", "jjj"); //商品标记
data.SetValue("trade_type", "NATIVE"); //交易类型
data.SetValue("product_id", productId); //商品ID
WxPayData result = WxPayApi.UnifiedOrder(data); //调用统一下单接口
string url = result.GetValue("code_url").ToString(); //获得统一下单接口返回的二维码链接
WxPayLog.Info(methodString, "Get native pay mode 2 url : " + url);
return(url);
}
public static void ProcessNativeNotify(HttpContextBase httpContext)
{
var methodString = TypeString + ".ProcessNativeNotify";
WxPayData notifyData = GetNotifyData(httpContext);
//检查openid和product_id是否返回
if (!notifyData.IsSet("openid") || !notifyData.IsSet("product_id"))
{
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", "回调数据异常");
WxPayLog.Info(methodString, "The data WeChat post is error : " + res.ToXml());
httpContext.Response.Write(res.ToXml());
httpContext.Response.End();
}
//调统一下单接口，获得下单结果
string openid = notifyData.GetValue("openid").ToString();
string product_id = notifyData.GetValue("product_id").ToString();
WxPayData unifiedOrderResult = new WxPayData();
try
{
//统一下单
WxPayData req = new WxPayData();
req.SetValue("body", "test");
req.SetValue("attach", "test");
req.SetValue("out_trade_no", WxPayApi.GenerateOutTradeNo());
req.SetValue("total_fee", 1);
req.SetValue("time_start", DateTime.Now.ToString("yyyyMMddHHmmss"));
req.SetValue("time_expire", DateTime.Now.AddMinutes(10).ToString("yyyyMMddHHmmss"));
req.SetValue("goods_tag", "test");
req.SetValue("trade_type", "NATIVE");
req.SetValue("openid", openid);
req.SetValue("product_id", product_id);
unifiedOrderResult = WxPayApi.UnifiedOrder(req);
}
catch (Exception ex)//若在调统一下单接口时抛异常，立即返回结果给微信支付后台
{
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", "统一下单失败");
WxPayLog.Error(methodString, "UnifiedOrder failure : " + res.ToXml());
httpContext.Response.Write(res.ToXml());
httpContext.Response.End();
}
//若下单失败，则立即返回结果给微信支付后台
if (!unifiedOrderResult.IsSet("appid") || !unifiedOrderResult.IsSet("mch_id") || !unifiedOrderResult.IsSet("prepay_id"))
{
WxPayData res = new WxPayData();
res.SetValue("return_code", "FAIL");
res.SetValue("return_msg", "统一下单失败");
WxPayLog.Error(methodString, "UnifiedOrder failure : " + res.ToXml());
httpContext.Response.Write(res.ToXml());
httpContext.Response.End();
}
//统一下单成功,则返回成功结果给微信支付后台
WxPayData data = new WxPayData();
data.SetValue("return_code", "SUCCESS");
data.SetValue("return_msg", "OK");
data.SetValue("appid", WxPayConfig.APPID);
data.SetValue("mch_id", WxPayConfig.MCHID);
data.SetValue("nonce_str", WxPayApi.GenerateNonceStr());
data.SetValue("prepay_id", unifiedOrderResult.GetValue("prepay_id"));
data.SetValue("result_code", "SUCCESS");
data.SetValue("err_code_des", "OK");
data.SetValue("sign", data.MakeSign());
WxPayLog.Info(methodString, "UnifiedOrder success , send data to WeChat : " + data.ToXml());
httpContext.Response.Write(data.ToXml());
httpContext.Response.End();
}
/// <summary>
/// 刷卡支付完整业务流程逻辑
/// MicroPay.Run
/// </summary>
/// <param name="body">商品描述</param>
/// <param name="total_fee">总金额</param>
/// <param name="auth_code">支付授权码</param>
/// <returns>刷卡支付结果</returns>
/// <exception cref="WxPayException"></exception>
public static string MicroPay(string body, string total_fee, string auth_code)
{
var methodString = TypeString + ".MicroPay";
WxPayLog.Info(methodString, "Micropay is processing...");
WxPayData data = new WxPayData();
data.SetValue("auth_code", auth_code); //授权码
data.SetValue("body", body); //商品描述
data.SetValue("total_fee", int.Parse(total_fee)); //总金额
data.SetValue("out_trade_no", WxPayApi.GenerateOutTradeNo()); //产生随机的商户订单号
WxPayData result = WxPayApi.Micropay(data, 10); //提交被扫支付，接收返回结果
//如果提交被扫支付接口调用失败，则抛异常
if (!result.IsSet("return_code") || result.GetValue("return_code").ToString() == "FAIL")
{
string returnMsg = result.IsSet("return_msg") ? result.GetValue("return_msg").ToString() : "";
WxPayLog.Error(methodString, "Micropay API interface call failure, result : " + result.ToXml());
throw new WxPayException("Micropay API interface call failure, return_msg : " + returnMsg);
}
//签名验证
result.CheckSign();
WxPayLog.Debug("MicroPay", "Micropay response check sign success");
//刷卡支付直接成功
if (result.GetValue("return_code").ToString() == "SUCCESS" &&
result.GetValue("result_code").ToString() == "SUCCESS")
{
WxPayLog.Debug(methodString, "Micropay business success, result : " + result.ToXml());
return(result.ToPrintStr());
}
/******************************************************************
* 剩下的都是接口调用成功，业务失败的情况
* ****************************************************************/
//1）业务结果明确失败
if (result.GetValue("err_code").ToString() != "USERPAYING" &&
result.GetValue("err_code").ToString() != "SYSTEMERROR")
{
WxPayLog.Error(methodString, "micropay API interface call success, business failure, result : " + result.ToXml());
return(result.ToPrintStr());
}
//2）不能确定是否失败，需查单
//用商户订单号去查单
string out_trade_no = data.GetValue("out_trade_no").ToString();
//确认支付是否成功,每隔一段时间查询一次订单，共查询10次
int queryTimes = 10;//查询次数计数器
while (queryTimes-- > 0)
{
int succResult = 0;//查询结果
WxPayData queryResult = MicroPayQuery(out_trade_no, out succResult);
//如果需要继续查询，则等待2s后继续
if (succResult == 2)
{
Thread.Sleep(2000);
continue;
}
//查询成功,返回订单查询接口返回的数据
else if (succResult == 1)
{
WxPayLog.Debug(methodString, "Mircopay success, return order query result : " + queryResult.ToXml());
return(queryResult.ToPrintStr());
}
//订单交易失败，直接返回刷卡支付接口返回的结果，失败原因会在err_code中描述
else
{
WxPayLog.Error(methodString, "Micropay failure, return micropay result : " + result.ToXml());
return(result.ToPrintStr());
}
}
//确认失败，则撤销订单
WxPayLog.Error(methodString, "Micropay failure, Reverse order is processing...");
if (!MicroPayCancel(out_trade_no))
{
WxPayLog.Error(methodString, "Reverse order failure");
throw new WxPayException("Reverse order failure！");
}
return(result.ToPrintStr());
}