C#实现支付宝沙箱支付的项目实践

<table>
                <tr>
                    <td>订单名称：</td>
                    <td>
                        <asp:TextBox ID="tbxOrderName" runat="server"></asp:TextBox>
                    </td>
                </tr>
                <tr>
                    <td>订单金额：</td>
                    <td>
                        <asp:TextBox ID="tbxOrderAmount" runat="server"></asp:TextBox>
                    </td>
                </tr>
                <tr>
                    <td>订单描述：</td>
                    <td>
                        <asp:TextBox ID="tbxOrderDesc" runat="server"></asp:TextBox>
                    </td>
                </tr>
                <tr>
                    <td colspan="2">
                        <asp:Button ID="btn" runat="server" Text="支付"  OnClick="btn_Click"/>
                    </td>
                </tr>
            </table>

// 应用ID,您的APPID           
        public static string app_id = "20210******";
        // 支付宝网关
        public static string gatewayUrl = "https://openapi.alipaydev.com/gateway.do";
        // 商户私钥，您的原始格式RSA私钥
        public static string private_key = "MIIE******";
        // 支付宝公钥,查看地址：https://openhome.alipay.com/platform/keyManage.htm 对应APPID下的支付宝公钥。
        public static string alipay_public_key = "MIIBI******";
        // 签名方式
        public static string sign_type = "RSA2";
        // 编码格式
        public static string charset = "UTF-8";

        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void btn_Click(object sender, EventArgs e)
        {
            DefaultAopClient client = new DefaultAopClient(gatewayUrl, app_id, private_key, "json", "1.0", sign_type, alipay_public_key, charset, false);

            // 外部订单号，商户网站订单系统中唯一的订单号
            string out_trade_no = DateTime.Now.ToString("yyyyMMddHHmmss");
            // 订单名称
            string subject = this.tbxOrderName.Text;
            // 付款金额
            string total_amout = this.tbxOrderAmount.Text;
            // 商品描述
            string body = this.tbxOrderDesc.Text;
            // 支付中途退出返回商户网站地址
            string quit_url = "https://localhost:44334/PayFailed.aspx?tradeNo=" + out_trade_no;
            // 支付成功返回商户网站页面
            string return_url = "https://localhost:44334/PaySuccess.aspx?tradeNo=" + out_trade_no;
            // 设置支付完成异步通知接收地址
            string notify_url = "https://localhost:44334/Notify.aspx";

            // 组装业务参数model
            AlipayTradeWapPayModel model = new AlipayTradeWapPayModel();
            model.Body = body;
            model.Subject = subject;
            model.TotalAmount = total_amout;
            model.OutTradeNo = out_trade_no;
            model.ProductCode = "QUICK_WAP_WAY";
            model.QuitUrl = quit_url;

            AlipayTradeWapPayRequest request = new AlipayTradeWapPayRequest();
            // 设置支付完成同步回调地址
            request.SetReturnUrl(return_url);
            // 设置支付完成异步通知接收地址
            request.SetNotifyUrl(notify_url);
            // 将业务model载入到request
            request.SetBizModel(model);

            AlipayTradeWapPayResponse response = null;
            try
            {
                response = client.pageExecute(request, null, "post");
                Response.Write(response.Body);
            }
            catch (Exception exp)
            {
                throw exp;
            }