ASP.NET 微信支付(安装版)
前言
为了更方便大家的使用，我又封装了.NET Framework的API，直接把代码打包上传到nuget，大家可以直接在nuget里面搜索：AspNet.WeChatPayAPIv3安装到项目中就可以使用了。
代码实战
[代码]
using System;
using System.Configuration;
using System.Text;
using System.Threading.Tasks;
using System.Web;
using System.Web.Http;
using AspNetCore.WeChatPayAPIv3.Helper;
using AspNetCore.WeChatPayAPIv3.Models;
using AspNetCore.WeChatPayAPIv3.Models.ClostOrder;
using AspNetCore.WeChatPayAPIv3.Models.GenerateOrder;
using AspNetCore.WeChatPayAPIv3.Models.QueryOrder;
using AspNetCore.WeChatPayAPIv3.Models.QueryRefunds;
using AspNetCore.WeChatPayAPIv3.Models.Refunds;
using AspNetCore.WeChatPayAPIv3.Models.RefundsCallback;
using AspNetCore.WeChatPayAPIv3.Models.WxPayCallback;
namespace WeChatAPIv3Demo.Controllers
{
/// <summary>
/// 测试微信支付的控制器
/// </summary>
public class WeChatPayTestController : ApiController
{
/// <summary>
/// 统一下单接口
/// </summary>
/// <returns></returns>
[HttpGet, Route("api/WeChatPayTest/GenerateOrder")]
public async Task<AppPayModel> GenerateOrder()
{
var orderNumber = $"{DateTime.Now:yyyyMMddHHmmssff}{CodeHelper.CreateNumCode(3)}";
var helper = new WxPayHelper(WxPayConst.appid, WxPayConst.mchid, WxPayConst.serialNo, WxPayConst.privateKey);
var notify_url = ConfigurationManager.AppSettings["notify_url"]; //这个放在配置文件，从配置文件读取比较灵活，或者写到数据库中
var payodel = await helper.UnionGenerateOrder("好东西啊", 1, orderNumber, notify_url, "附加信息测试啊");
#region 为APP生成下单所需的参数，看个人实际需求，也可以APP自己生成所需的参数
var signModel = WxPayForAppHelper.GetSign(WxPayConst.appid, payodel.prepay_id, WxPayConst.privateKey);
#endregion
return signModel;
}
/// <summary>
/// 查询订单接口 -- 测试数据：2021033119240567226
/// </summary>
[HttpGet, Route("api/WeChatPayTest/QueryOrder")]
public async Task<WxPayStatusRespModel> QueryOrder(string orderNumber)
{
var helper = new WxPayHelper(WxPayConst.appid, WxPayConst.mchid, WxPayConst.serialNo, WxPayConst.privateKey);
var payModel = await helper.QueryOrder(orderNumber);
return payModel;
}
/// <summary>
/// 查询订单接口 -- 测试数据：2021033119240567226
/// </summary>
[HttpGet, Route("api/WeChatPayTest/CloseOrder")]
public async Task<ClostOrderRespModel> CloseOrder(string orderNumber)
{
var helper = new WxPayHelper(WxPayConst.appid, WxPayConst.mchid, WxPayConst.serialNo, WxPayConst.privateKey);
var payModel = await helper.ClostOrder(orderNumber);
return payModel;
}
/// <summary>
/// 微信支付成功结果回调接口
/// </summary>
/// <returns>退款通知http应答码为200且返回状态码为SUCCESS才会当做商户接收成功，否则会重试。注意：重试过多会导致微信支付端积压过多通知而堵塞，影响其他正常通知。</returns>
[HttpPost, Route("api/WeChatPayTest/WxPayCallback")]
[AllowAnonymous]
public async Task<WxPayCallbackRespModel> WxPayCallback()
{
#region 获取字符串流
System.IO.Stream s = HttpContext.Current.Request.InputStream;
int count = 0;
byte[] buffer = new byte[1024];
StringBuilder builder = new StringBuilder();
while ((count = s.Read(buffer, 0, 1024)) > 0)
{
builder.Append(Encoding.UTF8.GetString(buffer, 0, count));
}
s.Flush();
s.Close();
s.Dispose();
//var buffer = new MemoryStream();
//Request.Body.CopyTo(buffer);
#endregion
//我没有使用官方的那种验证数据安全性的方法，我解密出来数据之后，直接拿着订单号再去查询一下订单状态，然后再更新到数据库中。我嫌麻烦……
var str = Encoding.UTF8.GetString(buffer);
var wxPayNotifyModel = str.ToObject<WxPayNotifyModel>();
var resource = wxPayNotifyModel?.resource ?? new WxPayResourceModel();
var decryptStr = AesGcmHelper.AesGcmDecrypt(resource.associated_data, resource.nonce, resource.ciphertext, WxPayConst.APIV3Key);
var decryptModel = decryptStr.ToObject<WxPayResourceDecryptModel>();
var viewModel = new WxPayCallbackRespModel();
if (string.IsNullOrEmpty(decryptModel.out_trade_no))
{
viewModel.code = "FAIL";
viewModel.message = "数据解密失败";
}
else
{
var resp = await QueryOrder(decryptModel.out_trade_no);
//然后进行数据库更新处理……等等其他操作
}
return viewModel;
}
/// <summary>
/// 退款接口 -- 测试数据：2021033119240567226
/// </summary>
[HttpGet, Route("api/WeChatPayTest/Refunds")]
public async Task<RefundsRespModel> Refunds(string orderNumber)
{
var helper = new WxPayHelper(WxPayConst.appid, WxPayConst.mchid, WxPayConst.serialNo, WxPayConst.privateKey);
var refundNumber = $"{DateTime.Now:yyyyMMddHHmmssff}{CodeHelper.CreateNumCode(3)}";
var payModel = await helper.Refunds(orderNumber, refundNumber, "测试退款行不行", 1, 2, "https://xxxxx.top/api/WeChatPayTest/RefundsCallback");
return payModel;
}
/// <summary>
/// 退款通知回调接口
/// </summary>
/// <returns>退款通知http应答码为200且返回状态码为SUCCESS才会当做商户接收成功，否则会重试。注意：重试过多会导致微信支付端积压过多通知而堵塞，影响其他正常通知。</returns>
[HttpPost, Route("api/WeChatPayTest/RefundsCallback")]
[AllowAnonymous]
public async Task<RefundsCallbackRespModel> RefundsCallback()
{
#region 获取字符串流
System.IO.Stream s = HttpContext.Current.Request.InputStream;
int count = 0;
byte[] buffer = new byte[1024];
StringBuilder builder = new StringBuilder();
while ((count = s.Read(buffer, 0, 1024)) > 0)
{
builder.Append(Encoding.UTF8.GetString(buffer, 0, count));
}
s.Flush();
s.Close();
s.Dispose();
//var buffer = new MemoryStream();
//Request.Body.CopyTo(buffer);
#endregion
//我没有使用官方的那种验证数据安全性的方法，我解密出来数据之后，直接拿着商户退款订单号再去查询一下订单状态，然后再更新到数据库中。我嫌麻烦……
var str = Encoding.UTF8.GetString(buffer);
var wxPayNotifyModel = str.ToObject<RefundsCallbackModel>();
var resource = wxPayNotifyModel?.resource ?? new RefundsCallbackResourceModel();
var decryptStr = AesGcmHelper.AesGcmDecrypt(resource.associated_data, resource.nonce, resource.ciphertext, WxPayConst.APIV3Key);
var decryptModel = decryptStr.ToObject<RefundsCallbackDecryptModel>();
var viewModel = new RefundsCallbackRespModel();
if (string.IsNullOrEmpty(decryptModel.out_trade_no))
{
viewModel.code = "FAIL";
viewModel.message = "数据解密失败";
}
else
{
var resp = await QueryRefunds(decryptModel.out_refund_no);
//然后进行数据库更新处理……等等其他操作
}
return viewModel;
}
/// <summary>
/// 查询退款结果接口
/// </summary>
/// <param name="refundNumber">商户系统内部的退款单号，商户系统内部唯一</param>
/// <returns></returns>
[HttpGet, Route("api/WeChatPayTest/QueryRefunds")]
public async Task<QueryRefundsOrderRespModel> QueryRefunds(string refundNumber)
{
var helper = new WxPayHelper(WxPayConst.appid, WxPayConst.mchid, WxPayConst.serialNo, WxPayConst.privateKey);
var payModel = await helper.QueryRefundsOrder(refundNumber);
return payModel;
}
}
}
[代码]
最后
欢迎大家反馈问题给我，我的仓库地址：https://github.com/wolfsheep/WeChatAPIv3ForAppWithAspNet
