//
        AlipayClient alipayClient1 = new DefaultAlipayClient("https://openapi.alipay.com/gateway.do", "你的APPID", private_key, "json", "utf-8", alipay_public_key, "RSA2");
        AlipayTradePrecreateRequest request1 = new AlipayTradePrecreateRequest();
        request1.setBizContent("{" + "\"out_trade_no\":\"" + scanPaySweepDate.getOut_trade_no() + "\","
                //                + "\"seller_id\":\"" + scanPaySweepDate.getSeller_id() + "\","
                + "\"total_amount\":" + scanPaySweepDate.getTotal_amount() + ","
                + "\"subject\":\"" + scanPaySweepDate.getSubject() + "\","
                //                + "\"body\":\"" + scanPaySweepDate.getBody() + "\","
                //                + "\"operator_id\":\"" + scanPaySweepDate.getOperator_id() + "\","
                //                + "\"store_id\":\"" + scanPaySweepDate.getStore_id() + "\","
                //                + "\"terminal_id\":\"" + scanPaySweepDate.getTerminal_id() + "\","
                + "\"timeout_express\":\"" + scanPaySweepDate.getTimeout_express()
                + "\"}");
        AlipayTradePrecreateResponse response1 = alipayClient1.execute(request1);
        if (response1.isSuccess()) {
            System.out.println(response1.getSubMsg());
            ScanPayReturningData.getInstance().setOut_trade_no(response1.getOutTradeNo());
            ScanPayReturningData.getInstance().setQr_code(response1.getQrCode());
            path = "http://qr.liantu.com/api.php?text=" + response1.getQrCode();
            t = new Thread(new Runnable() {
                @Override
                public void run() {
                    URL url;
                    try {
                        url = new URL(path);
                        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
                        conn.setRequestMethod("GET");
                        conn.setConnectTimeout(5 * 1000);
                        InputStream inputStream = conn.getInputStream();
                        byte[] data = readInputStream(inputStream);
                        File imageFile = new File("D:\\carparkdata\\photo\\zfb.jpg");
                        FileOutputStream outStream = new FileOutputStream(imageFile);
                        outStream.write(data);
                        outStream.close();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                }
            });
            t.start();
        } else {
            System.out.println(response1.getSubMsg());
        }