公众号中调用支付宝支付
文章转自：https://zuoluo11.github.io/2017/07/04/%E5%BE%AE%E4%BF%A1%E5%85%AC%E4%BC%97%E5%8F%B7%E9%9B%86%E5%90%88%E6%94%AF%E4%BB%98%E5%AE%9D%E6%94%AF%E4%BB%98/ 感谢本作者
API及业务逻辑
手机网站支付API可以前往以下网址查看及下载sdk：
目前手机网站支付demo有： JAVA和PHP版本
SDK则有：JAVA、.NET和PHP版本
手机支付API
SDK下载
微信公众号集成帮助包
签名sign生成规则
代码实现
###普通手机网站用户进行确认下单页面
namespace AliPayDemo
{
public partial class Pay : System.Web.UI.Page
{
string APPID = "2017090907474487";
string APP_PRIVATE_KEY = @"****JEwKBgQCIFY+12QuI3gI478vsixJiYOWJb2T7MRr0Zlg2n3fnQWnVB2gOkSgls/CHM3y+d/GQRJRE5aFWa2Xt";
string ALIPAY_PUBLIC_KEY = @"***PXZOf8eQx+qWGky6LJZWie4IF2oqY7El1nps2qVg1IbQkDdIMNSr2a2nQF5GwSpVcF7bRZeNG2qgs3EjHu4hGqXMWbg6Fvs1iigiBYfkzQIDAQAB";
string CHARSET = "utf-8";
protected void Page_Load(object sender, EventArgs e)
{
IAopClient client = new DefaultAopClient("https://openapi.alipay.com/gateway.do", APPID, APP_PRIVATE_KEY, "json", "1.0", "RSA2", ALIPAY_PUBLIC_KEY, CHARSET, false);
AlipayTradeWapPayRequest request = new AlipayTradeWapPayRequest();
request.BizContent = "{" +
" \"subject\":\"大乐透\"," +
" \"out_trade_no\":\"70501111111S0011111191\"," +
" \"total_amount\":0.01," +
" \"product_code\":\"QUICK_WAP_WAY\"" +
" }";
AlipayTradeWapPayResponse response = client.pageExecute(request);
divBody.InnerHtml = response.Body;
}
}
}
###微信公众号内用户进行确认下单页面
1、下载集成微信公众号的帮助包并将文件放入项目文件夹中
ap.js 跳转到自带浏览器js
pay.htm 提示用户跳转htm页面
1、使用pageExecute方法，以GET方式获得url字符串；这个就得到了拼接好的支付url返回前台a标签里面就可以了
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AlipayTradeWapPayResponse response = client.pageExecute(request,null,"GET");
test = response.Body;
2、将Url传入前台页面标签，待用户点击确定
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<a id="test" href="<%=test%>" class="button button-big button-fill">支付宝结算</a>
3、用户点击页面后跳转到提示页，提示用户使用手机自带浏览器打开连接
4、完成支付
5、整体的代码
前端
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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="JsApiPayPage1.aspx.cs" Inherits="JsApiPayPage1" %>
<!DOCTYPE html>
<html>
<head runat="server">
<meta http-equiv="content-type" content="text/html;charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<title>微信支付</title>
</head>
<body style="background-color: #efeff4;">
<form runat="server" id="calculator" v-cloak>
<div class="content-block">
<a id="test" href="<%=test%>" class="button">支付宝结算</a>
</div>
</form>
</body>
</html>
<script>
var btn = document.querySelector("#test");
btn.addEventListener("click", function (e) {
e.preventDefault();
e.stopPropagation();
e.stopImmediatePropagation();
_AP.pay(e.target.href);
return false;
}, false);
</script>
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using System;
using System.Collections.Generic;
using CYQ.Data;
using Web.Lianmengban_2016;
using CYQ.Data.Table;
using Aop.Api.Util;
using Aop.Api;
using Aop.Api.Request;
using Aop.Api.Response;
public partial class JsApiPayPage1 : System.Web.UI.Page
{
public static string test { get; set; }
protected void Page_Load(object sender, EventArgs e)
{
CreateAliPayPramaters();
}
private void CreateAliPayPramaters()
{
IAopClient client = new DefaultAopClient("https://openapi.alipay.com/gateway.do", AliConfig.APP_ID, AliConfig.APP_PRIVATE_KEY, "json", "1.0", "RSA2", AliConfig.ALIPAY_PUBLIC_KEY, AliConfig.CHARSET, false);
AlipayTradeWapPayRequest request = new AlipayTradeWapPayRequest();
request.BizContent = "{" +
" \"subject\":\"大乐透\"," +
" \"out_trade_no\":\"70501111111S0011111191\"," +
" \"total_amount\":0.01," +
" \"product_code\":\"QUICK_WAP_WAY\"" +
" }";
AlipayTradeWapPayResponse response = client.pageExecute(request,null,"GET");
test = response.Body;
}
}
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public class AliConfig
{
public const string URL = "https://openapi.alipay.com/gateway.do";
public const string APP_ID = "20170111111144";
public const string APP_PRIVATE_KEY = @"MIIEowIBAAKCAQEA31kawX3d***t";
public const string FORMAT = "json";
public const string CHARSET = "utf-8";
public const string ALIPAY_PUBLIC_KEY = @"MIIBIjANBgkqhkiG9***";
public const string SIGN_TYPE = "RSA2";
public const string SELLER_EMAIL = "[email protected]";
public const string NOTIFY_URL = "http://www.222.net/ResultNotifyAliPay.aspx";
public const string RETURN_URL = "http://www.222.net/AliReturnPage.aspx";
}
总结及
出现的问题
1、参数的内容
按照api提供的列表把必填项的key及value一定要写全，写对；
2、BizContent的业务参数内多个参数之间用“，”号隔开，之前忘记写全，报错；
3、签名错误
sign_valid
API里面生成签名，包括sign_type
接收支付宝的异步通知时，验签之前不包括sign 和 sign_type
签名sign生成规则
支付宝官方sdk有个bug，Aop.Api.Util.AlipaySignature类中方法没有去掉sign_type就进行验证，导致出错；
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public static bool RSACheckV2(IDictionary<string, string> parameters, string publicKeyPem)
{
string sign = parameters["sign"];
parameters.Remove("sign");
parameters.Remove("sign_type");
string signContent = GetSignContent(parameters);
return RSACheckContent(signContent, sign, publicKeyPem, DEFAULT_CHARSET, "RSA");
}
public static bool RSACheckV2(IDictionary<string, string> parameters, string publicKeyPem, string charset)
{
string sign = parameters["sign"];
parameters.Remove("sign");
parameters.Remove("sign_type");
string signContent = GetSignContent(parameters);
return RSACheckContent(signContent, sign, publicKeyPem, charset, "RSA");
}
public static bool RSACheckV2(IDictionary<string, string> parameters, string publicKeyPem, string charset, string signType, bool keyFromFile)
{
string sign = parameters["sign"];
parameters.Remove("sign");
parameters.Remove("sign_type");
string signContent = GetSignContent(parameters);
return RSACheckContent(signContent, sign, publicKeyPem, charset, signType, keyFromFile);
}
4、交易订单处理失败 请稍后再试 ali38173
转到支付宝时，d出这个错误，找了很久，才发现是由于Bizcontent的最后一个}括号内包含一个全角的空格，很坑啊；
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