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 PayNotifyUrl
= AppConfigurtaionServices.Configuration["Wechat
:PayNotifyUrl"];
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 + "¬ify_url
=" + PayNotifyUrl + "&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>" + PayNotifyUrl + "</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> PayNotify()
{
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("refundnotify")]
public ActionResult<string> RefundNotify()
{
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
本文详细解析微信支付接口中常见的签名错误问题，阐述了appsecret与支付总账户api密钥的区别，以及如何正确使用api密钥进行签名，避免下单接口返回签名错误。
扫一扫
9605
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
