.net接入支付宝的支付接口

H5手机网站接入支付宝的支付接口，推荐使用支付宝提供的SDK来快速开发

我使用的是SDK开发

引用命名空间

using Aop.Api;
using Aop.Api.Request;
using Aop.Api.Response;
using Aop.Api.Util;

首页需要定义一些常量

 static string serverUrl = "https://openapi.alipaydev.com/gateway.do";
    static string app_id = "**";  //开发者的应用ID
    static string format = "JSON";
    static string charset = "utf-8";
    static string sign_type = "RSA2"; //签名格式
    static string version = "1.0";
    string UID = "2088102169707816";//卖家支付宝账户号
    //商户私钥
    static string merchant_private_key = "***";
    //支付宝公钥
    static string alipay_public_key = "***";

这里的app_id,merchant_private_key,alipay_public_key 我就没有列出来了，获取的方法需要自己去支付宝平台完成一些操作进行获取

在用户点击网站付款时，我们需要唤醒支付宝，来进行支付

public string H5RequestPayWay(OrderPO order)
    {
      IAopClient client = new DefaultAopClient(serverUrl, app_id, merchant_private_key, format, version, sign_type, alipay_public_key, charset, false);
      AlipayTradeWapPayRequest request = new AlipayTradeWapPayRequest();
      string address= "http://m." + PathLogic1.RootDomain;
      request.SetReturnUrl(address+ "/WebPay/AlipayPayResult");//同步请求
      request.SetNotifyUrl(address + "/WebPay/AsyncPay");//异步请求
      var lstDetail = Context.Data.OrderDetail.Where(x => x.OrderNo == order.OrderNo).ToSelectList(x=>new { x.SkuName});
      StringBuilder sb = new StringBuilder();
      for (int i = 0; i < lstDetail.Count(); i++)
      {
        sb.Append(lstDetail[i].SkuName + ",");
      }
      request.BizContent = "{" +
  ""body":""+sb.ToString().Substring(0,sb.Length-1)+""," +
  ""subject":"袋鼠巴巴商品支付"," +
  ""out_trade_no":""+order.OrderNo+""," +
  ""timeout_express":"90m"," +
  ""total_amount":"+(order.TotalAmount.Value+order.TotalFreight.Value)+"," +
  ""product_code":"QUICK_WAP_PAY"" +
  " }";

      AlipayTradeWapPayResponse response = client.pageExecute(request);
       return response.Body;
    }

具体发送给支付宝的参数，自行去查看

执行方法后，买家输入自己的支付宝账号密码进行支付，支付成功的结果，支付宝会以post的方式异步请求你的SetNotifyUrl的地址

这个SetNotifyUrl的地址必须要外网可以访问，支付宝的请求才能进来

买家支付成功，商家修改订单状态和数据库的操作，都在异步请求中执行

同步请求

public ActionResult AlipayPayResult()
    {
      ViewBag.result = "success";
      return View("PayResult");
    }

     /// <summary>
    /// 验证通知数据的正确性
    /// </summary>
    /// <param name="out_trade_no"></param>
    /// <param name="total_amount"></param>
    /// <param name="seller_id"></param>
    /// <returns></returns> 
private SortedDictionary<string, string> GetRequestPost()
    {
      int i = 0;
      SortedDictionary<string, string> sArray = new SortedDictionary<string, string>();
      NameValueCollection coll;
      //Load Form variables into NameValueCollection variable.
      coll = Request.Form;

      // Get names of all forms into a string array.
      String[] requestItem = coll.AllKeys;

      for (i = 0; i < requestItem.Length; i++)
      {
        sArray.Add(requestItem[i], Request.Form[requestItem[i]]);
      }

      return sArray;
    }
								 
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