com.seejoke.wechat.util.PayUtil Maven / Gradle / Ivy

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package com.seejoke.wechat.util;

import com.seejoke.wechat.api.WxConfig;
import com.seejoke.wechat.entity.PayOrderInfo;
import com.seejoke.wechat.entity.WxUnifiedOrder;

import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

public class PayUtil {

    public static WxUnifiedOrder createPayInfo(PayOrderInfo order, String notifyUrl, String openid) {
        Map payinfo = new HashMap<>();
        payinfo.put("appid", WxConfig.getInstance().getAppId());
        payinfo.put("mch_id", WxConfig.getInstance().getMchId());
        payinfo.put("device_info", "WEB");
        payinfo.put("nonce_str", StringUtils.randomStr(32));
        payinfo.put("body", order.getOrderName());
        payinfo.put("detail", order.getDetail());
        //商品订单号
        payinfo.put("out_trade_no", order.getOrderId());
        payinfo.put("total_fee", "" + order.getTotalFee());
        payinfo.put("attach", order.getAttach());
        payinfo.put("product_id", order.getProductId());
        payinfo.put("notify_url", notifyUrl);
        payinfo.put("trade_type", order.getTradeType());
        payinfo.put("openid", openid);
        payinfo.put("sign", createSign(payinfo, WxConfig.getInstance().getApiKey()));

        WxUnifiedOrder pay = new WxUnifiedOrder();
        pay.setAppid(payinfo.get("appid"));
        pay.setMchId(payinfo.get("mch_id"));
        pay.setDeviceInfo(payinfo.get("device_info"));
        pay.setNonceStr(payinfo.get("nonce_str"));
        pay.setBody(payinfo.get("body"));
        pay.setDetail(payinfo.get("detail"));
        pay.setAttach(payinfo.get("attach"));
        pay.setOutTradeNo(payinfo.get("out_trade_no"));
        pay.setTotalFee(payinfo.get("total_fee"));
        pay.setNotifyUrl(payinfo.get("notify_url"));
        pay.setTradeType(payinfo.get("trade_type"));
        pay.setProductId(payinfo.get("product_id"));
        pay.setOpenid(payinfo.get("openid"));
        pay.setSign(payinfo.get("sign"));
        return pay;
    }

    public static String createSign(Map payinfo, String keyStr) {
        Set keysSet = payinfo.keySet();
        Object[] keys = keysSet.toArray();
        Arrays.sort(keys);
        StringBuffer temp = new StringBuffer();
        boolean first = true;
        for (Object key : keys) {
            if (first) {
                first = false;
            } else {
                temp.append("&");
            }
            temp.append(key).append("=");
            Object value = payinfo.get(key);
            String valueString = "";
            if (null != value) {
                valueString = value.toString();
            }
            temp.append(valueString);
        }
        String tempStr = temp.toString() + "&key=" + keyStr;
        return MD5.getMD5(tempStr, "UTF-8").toUpperCase();
    }
}