// 由PassToPay.io提供支持

Map<String, Object> map = new HashMap<>();
map.put("mchNo", "Merchant Number...");
map.put("appId", "App ID...");
map.put("mchOrderNo", "Unique Order Number...");
map.put("wayCode", "ALI_QR");
map.put("amount", 10000);
map.put("currency", "cny");
map.put("userName", "zhang san...");
map.put("reqTime", 1711021401000l);
map.put("version", "1.0");
map.put("subject", "Children's clothing...");
map.put("body", "A red down jacket...");
map.put("notifyUrl", "https://www...");
JSONObject extParams = new JSONObject();
extParams.put("payDataType", "codeImgUrl");
map.put("channelExtra", extParams);
map.put("signType", "MD5");
map.put("sign", "5182B5B0...");
HttpResponse response = HttpRequest
        .post("http://api.pass2pay.com/api/pay/unifiedOrder")
        .form(map).execute();
JSONObject responseJson = JSON.parseObject(response.body());
if(responseJson.getIntValue("code") != 0){
    // failed, Please check the configuration or contact us
}else{
    //successful, return customer payment order info
}