Map String,Object paymentParams = new HashMap String,Object>(7);

paymentParams.put("appid", "2024082918");

paymentParams.put("payid","jsdk_payment_"+System.currentTimeMillis());

paymentParams.put("amount", "1");

paymentParams.put("subject", "your goods title");

paymentParams.put("type", "1");

paymentParams.put("notify_url", "your async notification address");

paymentParams.put("return_url", "your sync redirect page address");

Payment payment = Payment.create(paymentParams);