/**
 * 查询
 *
 * @param out_trade_no 商户订单号，商户网站订单系统中唯一订单号，必填
 * @param trade_no     支付宝交易号
 */
public static void TradeQuery(String out_trade_no, String trade_no) {
    /**********************/
    // SDK 公共请求类，包含公共请求参数，以及封装了签名与验签，开发者无需关注签名与验签
    AlipayClient client = new DefaultAlipayClient(AlipayConfig.URL, AlipayConfig.APPID, AlipayConfig.RSA_PRIVATE_KEY, AlipayConfig.FORMAT, AlipayConfig.CHARSET, AlipayConfig.ALIPAY_PUBLIC_KEY, AlipayConfig.SIGNTYPE);
    AlipayTradeQueryRequest alipay_request = new AlipayTradeQueryRequest();

    AlipayTradeQueryModel model = new AlipayTradeQueryModel();
    model.setOutTradeNo(out_trade_no);
    model.setTradeNo(trade_no);
    alipay_request.setBizModel(model);

    AlipayTradeQueryResponse alipay_response = null;
    try {
        alipay_response = client.execute(alipay_request);
    } catch (AlipayApiException e) {
        e.printStackTrace();
    }
    System.out.println(alipay_response.getBody());
}
 

public PayQueryChain(AlipayClient alipayClient, AlipayTradeQueryModel alipayTradeQueryModel) {
    this.alipayClient = alipayClient;
    this.alipayTradeQueryModel = alipayTradeQueryModel;
}
 

public PayQueryParamChain(AlipayClient alipayClient, AlipayTradeQueryModel alipayTradeQueryModel) {
    this.alipayClient = alipayClient;
    this.alipayTradeQueryModel = alipayTradeQueryModel;
}
 

@Override
public AlipayTradeQueryResponse selectOrder(AlipayTradeQueryModel model) throws AlipayApiException {
    AlipayTradeQueryRequest request = new AlipayTradeQueryRequest();
    request.setBizModel(model);
    return alipayClient.execute(request);
}
 

/**
 * 查询订单
 *
 * @param model
 * @return
 * @throws AlipayApiException
 */
AlipayTradeQueryResponse selectOrder(AlipayTradeQueryModel model) throws AlipayApiException;