using CY_PUBLIC_LIBRARY;
using CY_PUBLIC_LIBRARY.AppConfigurtaion;
using CY_PUBLIC_LIBRARY.BaseModels;
using CY_PUBLIC_LIBRARY.Extension;
using CY_PUBLIC_LIBRARY.Middleware;
using CY_PUBLIC_LIBRARY.WebRequestHelp;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Security.Cryptography;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Drawing.Imaging;
using DoMain;
using Org.BouncyCastle.Asn1.X509;
using System.Diagnostics;
using Newtonsoft.Json;
using Model.cxbd;
using Model.sys_model;
using Model.hospital_model;
namespace APP_API.Controllers.wechatControllers
{
/// <summary>
/// 微信支付
/// </summary>
[Route("api/[controller]")]
[ApiController]
[Authorize]
[ApiExplorerSettings(GroupName = "base_data")]
public class wechat_payController : BaseApiController
{
public wechat_payController(IFreeSql fsql) : base(fsql)
{
}
/// <summary>
/// 微信支付下单
/// </summary>
/// <param name="payItem"></param>
/// <
returns></
returns>
[HttpPost("pay")]
[Authorize]
public ActionResult<retObject<payRetModel>> Pay([FromBody] payOrderModel payItem)
{
var app_user = _fsql.Select<app_user>(_jwt.user_info.user_id).ToOne
();
var order = _fsql.Select<sys_order>(payItem.order_id).ToOne
();
if (order == null)
{
throw new ServiceException("订单不存在");
}
if (order.status != (int)wechat_refund_status.待付款)
{
throw new ServiceException("订单状态有误");
}
order.guid = Guid.NewGuid
().ToString("N");
//order.status = (int)wechat_refund_status.待接单;
_fsql.Update<sys_order>(order.order_id).Set(x=>x.guid,order.guid).ExecuteAffrows
();
var domain = new orderDomain(_fsql);
var payfee = Convert.ToInt32(payItem.pay * 100);
var order_pay = new order_pay
()
{
amount = payItem.pay,
rl = false,
pay_type_id = 2,
is_app = true,
order_id = payItem.order_id
};
var pay_id = _fsql.Insert(order_pay).ExecuteIdentity
();
var name = app_user.name;
if (name.Length > 40)
{
name = name.Substring(0, 40) + "...";
}
name = name.Replace("<", "").Replace(">", "");
var nonStr = CommandHelp.GetGuid
();
var Pay
NotifyUrl = AppConfigurtaionServices.Configuration["Wechat:Pay
NotifyUrl"];
var appid = AppConfigurtaionServices.Configuration["Wechat:AppId"];
var mch_id = AppConfigurtaionServices.Configuration["Wechat:MchId"];
var ipStr = AppConfigurtaionServices.Configuration["Wechat:Ip"];
var key = AppConfigurtaionServices.Configuration["Wechat:Key"];
var postData = "appid=" + appid + "&attach=" + pay_id + "&body=" + name + "&mch_id=" + mch_id + "&nonce_str=" + nonStr + "&
notify_
url=" + Pay
NotifyUrl + "&openid=" + app_user.open_id + "&out_trade_no=" + pay_id + "&spbill_create_ip=" + ipStr + "&total_fee=" + payfee + "&trade_type=JSAPI";
postData += "&key=" + key;
CyLogHelp.WriteLog(postData, "微信下单");
var md5 = MD5.Create
();
var bs2 = md5.ComputeHash(Encoding.UTF8.GetBytes(postData));
var sb2 = new StringBuilder
();
foreach (byte bb in bs2)
{
sb2.Append(bb.ToString("x2"));
}
postData = sb2.ToString
().ToUpper
();
var orderXml = "<xml>"
+ "<appid>" + appid + "</appid>"
+ "<attach>" + pay_id + "</attach>"
+ "<body>" + name + "</body>"
+ "<mch_id>" + mch_id + "</mch_id>"
+ "<nonce_str>" + nonStr + "</nonce_str>"
+ "<
notify_
url>" + Pay
NotifyUrl + "</
notify_
url>"
+ "<openid>" + app_user.open_id + "</openid>"
+ "<out_trade_no>" + pay_id + "</out_trade_no>"
+ "<spbill_create_ip>" + ipStr + "</spbill_create_ip>"
+ "<total_fee>" + payfee + "</total_fee>"
+ "<trade_type>JSAPI</trade_type>"
+ "<sign>" + postData + "</sign>"
+ "</xml>";
var retStr = WebRequsetHelp.PostRequestData("https://api.mch.weixin.qq.com/pay/unifiedorder", orderXml, WebRequsetContentType.Form表单);
if (retStr != "" && retStr.IndexOf("prepay_id") > 0)
{
XmlDocument doc = new XmlDocument
();
doc.LoadXml(retStr);
XmlNodeList list = doc.GetElementsByTagName("xml");
XmlNode xn = list[0];
var prepay_id = xn.SelectSingleNode("//prepay_id").InnerText;
if (!string.IsNullOrEmpty(prepay_id))
{
var timeSpanStr = DateTime.Now.ConvertShortDateTimeInt
().ToString
();
var postStr = "appId=" + appid + "&nonceStr=" + nonStr + "&package=prepay_id=" + prepay_id + "&signType=MD5&timeStamp=" + timeSpanStr;
postStr += "&key=" + key;
var bs = md5.ComputeHash(Encoding.UTF8.GetBytes(postStr));
var sb = new StringBuilder
();
foreach (byte bb in bs)
{
sb.Append(bb.ToString("x2"));
}
var signStr = sb.ToString
().ToUpper
();
var ret = new payRetModel
()
{
appId = appid,
nonceStr = nonStr,
package = "prepay_id=" + prepay_id,
paySign = signStr,
signType = "MD5",
timeStamp = timeSpanStr
};
return Ok(ret.GetRetObject
());
}
else
{
CyLogHelp.WriteLog(retStr + "\r\n" + orderXml, "微信下单失败");
throw new ServiceException("微信下单失败", 201);
}
}
else
{
CyLogHelp.WriteLog(retStr + "\r\n" + orderXml, "微信下单失败");
throw new ServiceException("微信下单失败", 201);
}
}
/// <summary>
/// 微信支付回调
/// </summary>
/// <
returns></
returns>
[HttpPost("gspayback")]
public ActionResult<string> Pay
Notify()
{
var successStr = "<xml><
return_code><![CDATA[SUCCESS]]></
return_code><
return_msg><![CDATA[OK]]></
return_msg></xml>";
var failStr = "<xml><
return_code><![CDATA[FAIL]]></
return_code><
return_msg><![CDATA[参数错误]]></
return_msg></xml>";
var postStr = "";
Request.Body.Seek(0,SeekOrigin.Begin);
using (var reader = new StreamReader(Request.Body, Encoding.UTF8))
{
postStr = reader.ReadToEndAsync
().Result;
}
_fsql.Insert(new wechat_request
()
{
content = postStr
}).ExecuteAffrows
();
if (!string.IsNullOrEmpty(postStr))
{
XmlDocument doc = new XmlDocument
();
doc.XmlResolver = null;
doc.LoadXml(postStr);
XmlNodeList list = doc.GetElementsByTagName("xml");
XmlNode xn = list[0];
string ret = xn.SelectSingleNode("//result_code").InnerText;
string attach = xn.SelectSingleNode("//attach").InnerText;
string mch_id = xn.SelectSingleNode("//mch_id").InnerText;
string out_trade_no = xn.SelectSingleNode("//out_trade_no").InnerText;
string transaction_id = xn.SelectSingleNode("//transaction_id").InnerText;
string totalFee = xn.SelectSingleNode("//total_fee").InnerText;
string openid = xn.SelectSingleNode("//openid").InnerText;
decimal price = 0;
if (decimal.TryParse(totalFee, out price))
{
price = price / 100;
}
if (_fsql.Select<wechat_pay_log>
().Where(x => x.transaction_id == transaction_id && x.result_code == "SUCCESS").Count
() > 0)
return Ok(successStr);
//再去判断是否收到订单
var nonStr = CommandHelp.GetGuid
();
var appid = AppConfigurtaionServices.Configuration["Wechat:AppId"];
var mymch_id = AppConfigurtaionServices.Configuration["Wechat:MchId"];
var key = AppConfigurtaionServices.Configuration["Wechat:Key"];
var postData = "appid=" + appid + "&mch_id=" + mymch_id + "&nonce_str=" + nonStr + "&out_trade_no=" + out_trade_no;
postData += "&key=" + key;
var md5 = MD5.Create
();
var bs2 = md5.ComputeHash(Encoding.UTF8.GetBytes(postData));
var sb2 = new StringBuilder
();
foreach (byte bb in bs2)
{
sb2.Append(bb.ToString("x2"));
}
postData = sb2.ToString
().ToUpper
();
var orderXml = "<xml>"
+ "<appid>" + appid + "</appid>"
+ "<mch_id>" + mymch_id + "</mch_id>"
+ "<nonce_str>" + nonStr + "</nonce_str>"
+ "<out_trade_no>" + out_trade_no + "</out_trade_no>"
+ "<sign>" + postData + "</sign>"
+ "</xml>";
var retStr = WebRequsetHelp.PostRequestData("https://api.mch.weixin.qq.com/pay/orderquery", orderXml, WebRequsetContentType.Form表单);
if (!retStr.Contains("支付成功"))
{
CyLogHelp.WriteLog(retStr + "\r\n" + orderXml, "微信支付回调请求失败");
throw new ServiceException("订单未支付", 201);
};
_fsql.Transaction(
() =>
{
var order = _fsql.Select<sys_order>
().Where(e => e.guid == out_trade_no).ToOne
();
//添加支付记录
var _paylog = new wechat_pay_log
()
{
openid = openid,
order_id = order.order_id,
out_trade_no = out_trade_no,
postStr = postStr,
result_code = ret,
total_fee = Convert.ToDecimal(totalFee),
transaction_id = transaction_id,
};
if (_fsql.Insert(_paylog).ExecuteAffrows
() <= 0)
throw new ServiceException("添加支付记录失败", 201);
if (_paylog.result_code == "SUCCESS")
{
//支付逻辑
var domain = new orderDomain(_fsql);
domain.order_pay(order.order_id);
}
});
return Ok(successStr);
}
return Ok(failStr);
}
/// <summary>
/// 微信退款回调
/// </summary>
/// <
returns></
returns>
[HttpPost("refund
notify")]
public ActionResult<string> Refund
Notify()
{
string WechatDecrypt(string decryptStr, string key)
{
byte[] keyArray = Encoding.UTF8.GetBytes(key);
byte[] toEncryptArray = Convert.FromBase64String(decryptStr);
RijndaelManaged rDel = new RijndaelManaged
();
rDel.Key = keyArray;
rDel.Mode = CipherMode.ECB;
rDel.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = rDel.CreateDecryptor
();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
return Encoding.UTF8.GetString(resultArray);
}
var successStr = "<xml><
return_code><![CDATA[SUCCESS]]></
return_code><
return_msg><![CDATA[OK]]></
return_msg></xml>";
var failStr = "<xml><
return_code><![CDATA[FAIL]]></
return_code><
return_msg><![CDATA[参数错误]]></
return_msg></xml>";
var postStr = "";
Request.Body.Seek(0, SeekOrigin.Begin);
using (var reader = new StreamReader(Request.Body, Encoding.UTF8))
{
postStr = reader.ReadToEndAsync
().Result;
}
_fsql.Insert(new wechat_request_refund
()
{
content = postStr
}).ExecuteAffrows
();
if (string.IsNullOrEmpty(postStr))
return Ok(failStr);
try
{
XmlDocument doc = new XmlDocument
();
doc.XmlResolver = null;
doc.LoadXml(postStr);
XmlNodeList list = doc.GetElementsByTagName("xml");
XmlNode xn = list[0];
var retcode = xn.SelectSingleNode("//
return_code").InnerText;
var req_info = xn.SelectSingleNode("//req_info").InnerText;
if (!string.IsNullOrEmpty(req_info))
{
//解密
var key = AppConfigurtaionServices.Configuration["Wechat:Key"];
var md5 = MD5.Create
();
var bs2 = md5.ComputeHash(Encoding.UTF8.GetBytes(key));
var sb2 = new StringBuilder
();
foreach (byte bb in bs2)
{
sb2.Append(bb.ToString("x2"));
}
var temp_key = sb2.ToString
().ToLower
();
var refund_info = WechatDecrypt(req_info, temp_key);
if (!string.IsNullOrEmpty(refund_info))
{
doc.LoadXml(refund_info);
if (doc != null)
{
list = doc.GetElementsByTagName("root");
xn = list[0];
string transaction_id = xn.SelectSingleNode("//transaction_id").InnerText;
string out_trade_no = xn.SelectSingleNode("//out_trade_no").InnerText;
string refund_id = xn.SelectSingleNode("//refund_id").InnerText;
string out_refund_no = xn.SelectSingleNode("//out_refund_no").InnerText;
string refund_fee = xn.SelectSingleNode("//refund_fee").InnerText;
string refund_status = xn.SelectSingleNode("//refund_status").InnerText;
string totalFee = xn.SelectSingleNode("//total_fee").InnerText;
decimal price = 0;
if (decimal.TryParse(refund_fee, out price))
{
price = price / 100;
}
if (_fsql.Select<wechat_refund_log>
().Where(x => x.refund_id == refund_id && x.refund_status == "SUCCESS").Count
() > 0)
return Ok(successStr);
_fsql.Transaction(
() =>
{
var _refundlog = new wechat_refund_log
()
{
out_refund_no = out_refund_no,
out_trade_no = out_trade_no,
postStr = postStr,
refund_fee = Convert.ToDecimal(price),
refund_status = refund_status,
refund_id = refund_id,
transaction_id = transaction_id
};
var _r = _fsql.Insert(_refundlog).ExecuteAffrows
();
if (_r <= 0)
throw new ServiceException("添加退款日志失败", 201);
if (_refundlog.refund_status == "SUCCESS")
{
var _order = _fsql.Select<sys_order>
().Where(x => x.guid == _refundlog.out_trade_no).ToOne
();
if (_order == null)
{
throw new ServiceException("订单不存在", 201);
}
//找到退款记录
var refund_id = Convert.ToInt32(out_refund_no);
_fsql.Update<sys_order>(refund_id).Set(e => e.status, (int)DoMain.Enum.wechat_refund_status.已取消).ExecuteAffrows
();
}
});
return Ok(successStr);
}
}
}
}
catch { }
return Ok(failStr);
}
}
public class payRetModel
{
public string appId { get; set; }
public string timeStamp { get; set; }
public string nonceStr { get; set; }
public string package { get; set; }
public string signType { get; set; }
public string paySign { get; set; }
}
public class payOrderModel
{
/// <summary>
/// 订单ID/购物车订单id
/// </summary>
[Required]
public int order_id { get; set; } = 0;
/// <summary>
/// 支付金额
/// </summary>
[Required]
public decimal pay { get; set; }
[Required]
public bool from_cart { get; set; }
}
}
我这个为啥状态不修改而且支付也报Object reference not set to
an instance of an object.（在小程序上支付）怎么解决
扫一扫
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