ASP.NET MVC支付宝沙箱集成指南：核心代码解析

以下是ASP.NET MVC中实现支付宝沙箱的核心代码：

添加支付宝沙箱相关配置到web.config文件中：

<appSettings>
    <add key="AlipayGatewayUrl" value="https://openapi.alipaydev.com/gateway.do"/>
    <add key="AlipayAppId" value="your_sandbox_app_id"/>
    <add key="AlipayPublicKey" value="your_sandbox_public_key"/>
    <add key="AlipayPrivateKey" value="your_sandbox_private_key"/>
</appSettings>

在控制器中编写支付宝沙箱支付逻辑：

using Alipay.AopSdk.Core;
using Alipay.AopSdk.Core.Request;
using Alipay.AopSdk.Core.Response;

public class AlipayController : Controller
{
    public ActionResult Index()
    {
        return View();
    }

    [HttpPost]
    public ActionResult Pay(string orderId, string totalAmount)
    {
        var alipayConfig = new AlipayConfig
        {
            GatewayUrl = ConfigurationManager.AppSettings["AlipayGatewayUrl"],
            AppId = ConfigurationManager.AppSettings["AlipayAppId"],
            PublicKey = ConfigurationManager.AppSettings["AlipayPublicKey"],
            PrivateKey = ConfigurationManager.AppSettings["AlipayPrivateKey"]
        };

        var client = new DefaultAopClient(alipayConfig.GatewayUrl, alipayConfig.AppId, alipayConfig.PrivateKey, "json", "1.0", "RSA2", alipayConfig.PublicKey, "UTF-8", false);

        var request = new AlipayTradePagePayRequest
        {
            BizContent = "{"
                          + "\"out_trade_no\":\"{orderId}\","
                          + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\","
                          + "\"total_amount\":\"{totalAmount}\","
                          + "\"subject\":\"Test Order\""
                          + "}"
        };

        var response = client.pageExecute(request, "GET");

        return Content(response.Body);
    }
}

在视图中添加支付按钮，并绑定支付逻辑：

<div>
    <button id="btnPay" class="btn btn-primary">Pay</button>
</div>

@section scripts {
    <script>
        $(document).ready(function () {
            $('#btnPay').click(function () {
                var orderId = '12345678';
                var totalAmount = '0.01';

                $.ajax({
                    type: 'POST',
                    url: '@Url.Action("Pay", "Alipay")',
                    data: { orderId: orderId, totalAmount: totalAmount },
                    success: function (data) {
                        $('body').append(data);
                        $('form').submit();
                    },
                    error: function (xhr, status, error) {
                        alert(error);
                    }
                });
            });
        });
    </script>
}