.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;
    }

 /// <summary>
    /// 验签
    /// </summary>
    /// <param name="inputpara"></param>
    /// <returns></returns>
    public boolean verify(sorteddictionary<string, string> inputpara)
    {
      dictionary<string, string> spara = new dictionary<string, string>();    
      boolean verifyresult = alipaysignature.rsacheckv1(inputpara, alipay_public_key, charset,sign_type,false);
      return verifyresult;
    }

异步请求：

 [httppost]
    public void asyncpay()
    {
      sorteddictionary<string, string> spara = getrequestpost();//将post请求过来的参数传化为sorteddictionary
      if (spara.count > 0)
      {
        alipaytradewaypayserver pay = new alipaytradewaypayserver();
        boolean verifyresult = pay.verify(spara);//验签if (verifyresult)
        {
          try
          {
             //商户订单号
            string out_trade_no = request.form["out_trade_no"];
            //支付宝交易号
            string trade_no = request.form["trade_no"];
            //支付金额
            decimal total_amount = request.form["total_amount"].converttype(decimal.zero);
            //实收金额
            //decimal receipt_amount = request.form["receipt_amount"].converttype(decimal.zero);
            //交易状态
            string trade_status = request.form["trade_status"];
            //卖家支付宝账号
            string seller_id = request.form["seller_id"];

            //商品描述
            string body = request.form["body"];
            //交易创建时间
            datetime gmt_create = datetime.parse(request.form["gmt_create"]);
            //交易付款时间
            datetime gmt_payment = datetime.parse(request.form["gmt_payment"]);
            string appid = request.form["app_id"];
            writeerror("验证参数开始");
            boolean datavalidity = pay.checkinform(out_trade_no, total_amount, seller_id, appid);//商家判断参数时候是否匹配if (datavalidity)
            {
              if (request.form["trade_status"] == "trade_finished")
              {
                alipaywaypaypo model = createalipaywaypay(out_trade_no, trade_no, trade_status, gmt_create, gmt_payment);
                pay.paysuccess(out_trade_no, model, server.mappath("~/" + datetime.today.tostring("yymmdd") + ".txt"));//修改订单
                //注意：
                //退款日期超过可退款期限后（如三个月可退款），支付宝系统发送该交易状态通知
              }
              else if (request.form["trade_status"] == "trade_success")
              {
                alipaywaypaypo model = createalipaywaypay(out_trade_no, trade_no, trade_status, gmt_create, gmt_payment);
                pay.paysuccess(out_trade_no, model, server.mappath("~/" + datetime.today.tostring("yymmdd") + ".txt"));//修改订单
                //注意：
                //付款完成后，支付宝系统发送该交易状态通知
              }
              else
              {

              }

              //——请根据您的业务逻辑来编写程序（以上代码仅作参考）——

              response.write("success"); //请不要修改或删除

              /////////////////////////////////////////////////////////////////////////////////////////////////////////////
            }
          }
          catch (exception ex)
          {
            
          }
        }
        else//验证失败
        {
          response.write("fail");
        }
      }
      else
      {
        response.write("无通知参数");
      }
    }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。