支付宝当面付（扫二维码）

    //沙箱版客户扫二维码支付
    public String test_trade_pay(Map<String, Object> map){
        AlipayClient alipayClient = new DefaultAlipayClient("https://openapi.alipaydev.com/gateway.do", alipay_appId, alipay_private_key , "json", charset, alipay_public_key, "RSA2");
        //创建API对应的request类
        AlipayTradePrecreateRequest request = new AlipayTradePrecreateRequest();
        request.setNotifyUrl(alipay_notify_url);
        request.setBizContent("{" +
        "    "out_trade_no":""+new SimpleDateFormat("yyyyMMddHHmmss").format(new Date())+(int)(Math.random()*90000+10000)+""," +
        "    "seller_id":"2088102169838738"," +
        "    "total_amount":"1"," +
        "    "buyer_logon_id":"acmldw0191@sandbox.com"," +
        "    "subject":"收购阿里巴巴"," +
        "    "body":""+map.toString()+""," +  //附加数据，传json格式会报错，json格式带有双引号""
        "    "timeout_express":"30m"," +
        "    "store_id":"NJ_001"" +
        "    }");
        //通过alipayClient调用API，获得对应的response类
        AlipayTradePrecreateResponse response;
        try {
            response = alipayClient.execute(request);
            System.out.print(response.getBody());
            return response.getBody(); //返回的参数qr_code 是支付二维码地址
        } catch (AlipayApiException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        //根据response中的结果继续业务逻辑处理
        return "";
    }

扫码支付文档

当面付API

当面付异步通知

入参列表