H5网站接入支付宝的支付接口

来源:转载

写本文章的目的是为了记录工作中遇到的问题,方便以后遇到可以迅速解决问题

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\"" +

" }";//这里填写一些发送给支付宝的一些参数

AlipayTradeWapPayResponse response = client.pageExecute(request);

return response.Body;//这里会发送一个表单输出到页面中

}

具体发送给支付宝的参数,自行去查看

执行上面方法后,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);//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);//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");

}

}

 

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