方案目标 #01

      用户在收缴完成后，因各种原因需要退款，本接口为商户端提供了退付接口。商户可通过调用接口完成退付。

运行流程 #02

接口调用退付接口说明 #03

接口参数 #04

chargeMap参数内容:

Demo #05

                             
  Map chargeMap = new HashMap();
      chargeMap.put("merchant_no", "2102002017061622");//商户号
      chargeMap.put("merchant_order_no","order1234567890");// 商户端订单号
      chargeMap.put("merchant_refund_order_no ","refundorder1234567890");
      chargeMap.put("amount","100");
      chargeMap.put("refund_des","商品售罄");

      String privateKey = "";//私钥赋值
    try{
 // 发起 create创建charge请求(参数为构造的的chargeMap,传入的controller的service_url)
        chargeString = Charge.create(chargeMap, service_url ,privateKey);
        logger.info(chargeString);
  } catch (Exception e) {
    e.printStackTrace();
  }
      return querySingle;
}
                             
                         

通知接口 #06

说明       退付后会异步给商户后端返回通知。

接口参数Demo #07

                             
@RequestMapping(value = "/refundnotice", method = RequestMethod.POST)
@ResponseBody
public String backNotice(HttpServletRequest request,
                        HttpServletResponse response) throws Exception {
    logger.info("客户端开始接受退付回调通知...");
//从request中获取到输入流，然后解析流到StringBuffer中获取到加密后的Stringbuffer字符串
    StringBuffer stringBuffer = new StringBuffer();
     try {
        InputStream is = request.getInputStream();
        InputStreamReader isr = new InputStreamReader(is);
        BufferedReader br = new BufferedReader(isr);
        String s = "";
        while ((s = br.readLine()) != null) {
            stringBuffer.append(s);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    String str = stringBuffer.toString();

    //对StringBuffer进行解密
    RSAMethod rsaMethod = new RSAMethod();
    Base64Utils base = new Base64Utils();
    //获取私钥(本Demo通过类的静态方法获取)
    ThirdPay.privateKey = ThirdpayDataDto.getPrivateKey();
byte[] returnMsg = rsaMethod.decryptByPrivateKey
                                 (base.decode(str),ThirdPay.privateKey);
    //解密后后的String字符串
    String  reqParamter= new String(returnMsg);
    logger.info(reqParamter);
    //给予服务端响应响应
    JSONObject json=new JSONObject();
    json.put("result", "200");
    logger.info("客户端接受后台回调通知结束...");
    return json.toString();
}