public string callback()
{
Payjs payjs = new Payjs("your mchid", "your key");
//获取post参数
var param = Request.Form.ToDictionary(s => s.Key, s => s.Value);
//订单号
string orderid = param.ContainsKey("out_trade_no")?param["out_trade_no"].ToString():"";
//订单金额
string total_fee = param.ContainsKey("total_fee") ? param["total_fee"].ToString() : "";
//自定义数据
string attach = param.ContainsKey("attach") ? param["attach"].ToString() : "";
//这里需要对订单数据做基本校验，可以检查当前订单号是否存在，金额和自定义数据是否匹配等
//比如，下单时将订单数据存redis，key为orderid，value为订单json数据，ttl为30分钟
//这里便可通过orderid参数去redis中查询校验
//当ttl过期或者订单成功被删除后，payjs发送过来的请求直接忽略
// 参考代码
//if (string.IsNullOrEmpty(redis.get(orderid)))
//{
// //订单不存在了，直接退出
// return "";
//}
//post 参数字典转为<string,string>
var dic = new Dictionary <string, string>();
foreach (var keyPair in param)
{
dic.Add(keyPair.Key, keyPair.Value.ToString());
}
//对签名校验
string sign = param["sign"];
if (!payjs.notifyCheck(dic))
{
return("sign error");
}
//校验成功，进入自身业务逻辑(需在3s内响应
//若超过3s，可以把自身业务放后端（比如通过tcp或者udp通知后端服务），然后这里就直接return success
//自身逻辑完成，删除redis订单数据
//redis.del(orderid);
return("success");
}
public IActionResult AsyncNotification(NotifyResponseMessage notifyResponseMessage)
{
if (notifyResponseMessage == null)
{
Response.StatusCode = (int)HttpStatusCode.BadRequest;
return(Content("BadRequest"));
}
else
{
Console.WriteLine(notifyResponseMessage.openid);
bool identify = pay.notifyCheck(notifyResponseMessage);
if (!identify)
{
Response.StatusCode = (int)HttpStatusCode.BadRequest;
return(Content("BadRequest"));
}
try
{
var orderObj = dataContext.GoodOrder.Where(b => b.payjs_order_id.Equals(notifyResponseMessage.payjs_order_id)).FirstOrDefault();
if (orderObj.total_fee != notifyResponseMessage.total_fee)
{
throw new Exception("金额不正确");
}
orderObj.PayStatus = true;
orderObj.transaction_id = notifyResponseMessage.transaction_id;
orderObj.openid = notifyResponseMessage.openid;
orderObj.Notify = true;
orderObj.NotifyResponseMessage = notifyResponseMessage.ToJsonString();
dataContext.SaveChanges();
Response.StatusCode = (int)HttpStatusCode.OK;
return(Content("OK"));
}
catch (Exception)
{
Response.StatusCode = (int)HttpStatusCode.BadRequest;
return(Content("BadRequest"));
}
}
}