/// <summary>
/// 退款通知地址
/// </summary>
/// <returns></returns>
public async Task <IActionResult> RefundNotifyUrl()
{
WeixinTrace.SendCustomLog("RefundNotifyUrl被访问", "IP" + HttpContext.UserHostAddress()?.ToString());
NotifyReturnData returnData = new();
try
{
var resHandler = new TenPayNotifyHandler(HttpContext);
var refundNotifyJson = await resHandler.AesGcmDecryptGetObjectAsync <RefundNotifyJson>();
WeixinTrace.SendCustomLog("跟踪RefundNotifyUrl信息", refundNotifyJson.ToJson());
string refund_status = refundNotifyJson.refund_status;
if (/*refundNotifyJson.VerifySignSuccess == true &*/ refund_status == "SUCCESS")
{
returnData.code = "SUCCESS";
returnData.message = "OK";
//获取接口中需要用到的信息 例
string transaction_id = refundNotifyJson.transaction_id;
string out_trade_no = refundNotifyJson.out_trade_no;
string refund_id = refundNotifyJson.refund_id;
string out_refund_no = refundNotifyJson.out_refund_no;
int total_fee = refundNotifyJson.amount.payer_total;
int refund_fee = refundNotifyJson.amount.refund;
//填写逻辑
WeixinTrace.SendCustomLog("RefundNotifyUrl被访问", "验证通过");
}
else
{
returnData.code = "FAILD";
returnData.message = "验证失败";
WeixinTrace.SendCustomLog("RefundNotifyUrl被访问", "验证失败");
}
//进行后续业务处理
}
catch (Exception ex)
{
returnData.code = "FAILD";
returnData.message = ex.Message;
WeixinTrace.WeixinExceptionLog(new WeixinException(ex.Message, ex));
}
//https://pay.weixin.qq.com/wiki/doc/apiv3/wechatpay/wechatpay3_3.shtml
return(Json(returnData));
}
/// <summary>
/// JS-SDK支付回调地址（在下单接口中设置的 notify_url）
/// </summary>
/// <returns></returns>
public async Task <IActionResult> PayNotifyUrl()
{
try
{
//获取微信服务器异步发送的支付通知信息
var resHandler = new TenPayNotifyHandler(HttpContext);
var orderReturnJson = await resHandler.AesGcmDecryptGetObjectAsync <OrderReturnJson>();
//记录日志
Senparc.Weixin.WeixinTrace.SendCustomLog("PayNotifyUrl 接收到消息", orderReturnJson.ToJson(true));
//演示记录 transaction_id，实际开发中需要记录到数据库，以便退款和后续跟踪
TradeNumberToTransactionId[orderReturnJson.out_trade_no] = orderReturnJson.transaction_id;
//获取支付状态
string trade_state = orderReturnJson.trade_state;
//验证请求是否从微信发过来（安全）
NotifyReturnData returnData = new();
//验证可靠的支付状态
if (orderReturnJson.VerifySignSuccess == true && trade_state == "SUCCESS")
{
returnData.code = "SUCCESS";//正确的订单处理
/* 提示：
* 1、直到这里，才能认为交易真正成功了，可以进行数据库操作，但是别忘了返回规定格式的消息！
* 2、上述判断已经具有比较高的安全性以外，还可以对访问 IP 进行判断进一步加强安全性。
* 3、下面演示的是发送支付成功的模板消息提示，非必须。
*/
#region 发送支付成功模板消息提醒
try
{
string appId = Config.SenparcWeixinSetting.TenPayV3_AppId;//与微信公众账号后台的AppId设置保持一致，区分大小写。
string openId = orderReturnJson.payer.openid;
var templateData = new WeixinTemplate_PaySuccess("https://weixin.senparc.com", "微信支付 V3 购买商品", "状态：" + trade_state);
Senparc.Weixin.WeixinTrace.SendCustomLog("TenPayV3 支付成功模板消息参数", "AppId:" + appId + " ,openId: " + openId);
var result = await MP.AdvancedAPIs.TemplateApi.SendTemplateMessageAsync(appId, openId, templateData);
}
catch (Exception ex)
{
Senparc.Weixin.WeixinTrace.SendCustomLog("TenPayV3 支付成功模板消息", ex.ToString());
}
#endregion
}
else
{
returnData.code = "FAILD";//错误的订单处理
returnData.message = "验证失败";
//此处可以给用户发送支付失败提示等
}
#region 记录日志（也可以记录到数据库审计日志中）
var logDir = ServerUtility.ContentRootMapPath(string.Format("~/App_Data/TenPayNotify/{0}", SystemTime.Now.ToString("yyyyMMdd")));
if (!Directory.Exists(logDir))
{
Directory.CreateDirectory(logDir);
}
var logPath = Path.Combine(logDir, string.Format("{0}-{1}-{2}.txt", SystemTime.Now.ToString("yyyyMMdd"), SystemTime.Now.ToString("HHmmss"), Guid.NewGuid().ToString("n").Substring(0, 8)));
using (var fileStream = System.IO.File.OpenWrite(logPath))
{
var notifyJson = orderReturnJson.ToString();
await fileStream.WriteAsync(Encoding.Default.GetBytes(notifyJson), 0, Encoding.Default.GetByteCount(notifyJson));
fileStream.Close();
}
#endregion
//https://pay.weixin.qq.com/wiki/doc/apiv3/apis/chapter3_1_5.shtml
return(Json(returnData));
}
catch (Exception ex)
{
WeixinTrace.WeixinExceptionLog(new WeixinException(ex.Message, ex));
throw;
}
}
