szwlServer/src/main/java/com/szwl/service/impl/TOrderServiceImpl.java

package com.szwl.service.impl;

import com.alibaba.fastjson.JSONObject;
import com.szwl.model.bo.JoinpayConstant;
import com.szwl.model.entity.TOrder;
import com.szwl.mapper.TOrderMapper;
import com.szwl.model.utils.Constant;
import com.szwl.model.utils.HttpClientUtils;
import com.szwl.service.TOrderService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.http.message.BasicNameValuePair;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.io.UnsupportedEncodingException;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.net.URLDecoder;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author wuhs
 * @since 2022-04-23
 */
@Slf4j
@Service
public class TOrderServiceImpl extends ServiceImpl<TOrderMapper, TOrder> implements TOrderService {
    @Autowired
    private TOrderMapper tOrderMapper;
    @Override
    public Double getAreaPrice(Map<String, Object> params) {
        return tOrderMapper.getAreaPrice(params);
    }

    @Override
    @Transactional
    public synchronized String initSn(Long equipmentId) {
        StringBuilder number = new StringBuilder();
        if (equipmentId != null) {
            Random random = new Random();
            /**
             * 6位随机
             */
            for (int i = 0; i < 6; i++) {
                number.append(String.valueOf(random.nextInt(10)));
            }
            /**
             * 设备id
             */
            number.append(equipmentId.toString());
            /**
             * 日期
             */
            number.append(new SimpleDateFormat("yyyyMMddHHmmss").format(new Date()));
        }
        return number.toString();
    }

    @Override
    public Object initRefundSn(Long equipmentId, int refundNumber) {
        StringBuilder number = new StringBuilder();
        if (equipmentId != null) {
            Random random = new Random();
            /**
             * 6位随机
             */
            for (int i = 0; i < 6; i++) {
                number.append(String.valueOf(random.nextInt(10)));
            }
            /**
             * 设备id
             */
            number.append(equipmentId.toString());
            /**
             * 日期
             */
            number.append(new SimpleDateFormat("yyyyMMddHHmmss").format(new Date()));
            /**
             * 退款数量
             */
            number.append(refundNumber);
        }
        return "r" + number.toString();
    }
    @Override
    public String refund(String sn , Object refundSn  , BigDecimal refundAmount , BigDecimal p8_MarketRefAmount , String refundReason , String notifyUrl , String altRefInfo ) {
        String url = "https://www.joinpay.com/trade/refund.action";

        List<BasicNameValuePair> data = new ArrayList<BasicNameValuePair>();

        data.add(new BasicNameValuePair("p1_MerchantNo", JoinpayConstant.mch_no));
        data.add(new BasicNameValuePair("p2_OrderNo", sn));
        data.add(new BasicNameValuePair("p3_RefundOrderNo", refundSn.toString()));
        data.add(new BasicNameValuePair("p4_RefundAmount", refundAmount.setScale(2, RoundingMode.HALF_DOWN).toString()));
        data.add(new BasicNameValuePair("p5_RefundReason", refundReason));
        data.add(new BasicNameValuePair("p6_NotifyUrl", notifyUrl));
        data.add(new BasicNameValuePair("p7_AltRefInfo", altRefInfo==null?null:altRefInfo.toString()));
        if(p8_MarketRefAmount!=null){
            data.add(new BasicNameValuePair("p8_MarketRefAmount", p8_MarketRefAmount.toString()));
        }
        // TODO: 2019-04-01  空值不参与签名!!!!!!!!!!!!!!!!!!
        String hmac = null;
        try {
            hmac = createHmacSign(data, JoinpayConstant.key);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        data.add(new BasicNameValuePair("hmac", hmac));


        String result = HttpClientUtils.postKeyValue(url, data);

        JSONObject resultJson = JSONObject.parseObject(result);
        log.info("汇聚返回参数：{}", resultJson);
        System.out.println(result);
        return resultJson.getString("rc_CodeMsg");
    }
    /**
     * 签名算法sign , hmac 签名
     *
     * @param data
     * @return
     */
    public static String createHmacSign( List<BasicNameValuePair> data , String key) throws UnsupportedEncodingException {

        StringBuffer sb = new StringBuffer();
        Iterator<BasicNameValuePair> es = data.iterator();
        while (es.hasNext()) {
            BasicNameValuePair entry = (BasicNameValuePair) es.next();
            String k = (String) entry.getName();
            String v = (String) entry.getValue();
            if (null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)) {
                sb.append(URLDecoder.decode(String.valueOf(v), "utf-8"));
            }
        }

        sb.append(key);
        String sign = DigestUtils.md5Hex(sb.toString());
        return sign;
    }
}