199 lines
7.3 KiB
Java
199 lines
7.3 KiB
Java
package com.utils;
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import cn.hutool.core.util.ObjectUtil;
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import cn.hutool.core.util.StrUtil;
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import cn.hutool.crypto.SecureUtil;
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import com.alibaba.fastjson.JSONObject;
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import com.constants.Constants;
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import com.constants.PayConstants;
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import com.exception.CrmebException;
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import com.zbkj.crmeb.payment.vo.wechat.CreateOrderRequestVo;
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import com.zbkj.crmeb.payment.vo.wechat.WxRefundVo;
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import org.apache.commons.codec.digest.DigestUtils;
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import org.w3c.dom.Node;
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import org.w3c.dom.NodeList;
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import javax.xml.parsers.DocumentBuilder;
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import java.io.ByteArrayInputStream;
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import java.io.InputStream;
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import java.security.MessageDigest;
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import java.util.*;
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/**
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* 微信支付工具类
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* +----------------------------------------------------------------------
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* | CRMEB [ CRMEB赋能开发者，助力企业发展 ]
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* +----------------------------------------------------------------------
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* | Copyright (c) 2016~2020 https://www.crmeb.com All rights reserved.
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* +----------------------------------------------------------------------
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* | Licensed CRMEB并不是自由软件，未经许可不能去掉CRMEB相关版权
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* +----------------------------------------------------------------------
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* | Author: CRMEB Team <admin@crmeb.com>
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* +----------------------------------------------------------------------
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*/
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public class WxPayUtil {
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/**
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* 处理 HTTPS API返回数据，转换成Map对象。return_code为SUCCESS时，验证签名。
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*
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* @param xmlStr API返回的XML格式数据
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* @return Map类型数据
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* @throws Exception
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*/
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public static HashMap<String, Object> processResponseXml(String xmlStr) throws Exception {
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String RETURN_CODE = "return_code";
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String return_code;
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HashMap<String, Object> respData = XmlUtil.xmlToMap(xmlStr);
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if (respData.containsKey(RETURN_CODE)) {
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return_code = (String) respData.get(RETURN_CODE);
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} else {
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throw new CrmebException(String.format("No `return_code` in XML: %s", xmlStr));
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}
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if (return_code.equals(Constants.FAIL)) {
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return respData;
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} else if (return_code.equals(Constants.SUCCESS)) {
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return respData;
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} else {
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throw new CrmebException(String.format("return_code value %s is invalid in XML: %s", return_code, xmlStr));
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}
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}
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/**
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* 获取随机字符串，长度要求在32位以内。
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*/
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public static String getNonceStr() {
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return DigestUtils.md5Hex(CrmebUtil.getUuid() + CrmebUtil.randomCount(111111, 666666));
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}
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/**
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* 获取sign
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* @param vo 微信公共下单对象
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* @param signKey 微信签名key
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* @return String
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*/
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public static String getSign(CreateOrderRequestVo vo, String signKey) {
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// 对象转map
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Map<String, Object> map = JSONObject.parseObject(JSONObject.toJSONString(vo), Map.class);
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// map排序
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Set<String> keySet = map.keySet();
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String[] keyArray = keySet.toArray(new String[keySet.size()]);
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Arrays.sort(keyArray);
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StringBuilder sb = new StringBuilder();
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for (String k : keyArray) {
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if (k.equals(PayConstants.FIELD_SIGN)) {
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continue;
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}
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if (ObjectUtil.isNotNull(map.get(k))) // 参数值为空，则不参与签名
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sb.append(k).append("=").append(map.get(k)).append("&");
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}
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sb.append("key=").append(signKey);
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String sign = SecureUtil.md5(sb.toString()).toUpperCase();
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System.out.println("sign ========== " + sign);
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return sign;
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}
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/**
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* 获取sign
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* @param wxRefundVo 微信退款对象
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* @param signKey 微信签名key
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* @return String
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*/
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public static String getSign(WxRefundVo wxRefundVo, String signKey) {
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// 对象转map
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Map<String, Object> map = JSONObject.parseObject(JSONObject.toJSONString(wxRefundVo), Map.class);
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// map排序
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Set<String> keySet = map.keySet();
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String[] keyArray = keySet.toArray(new String[keySet.size()]);
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Arrays.sort(keyArray);
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StringBuilder sb = new StringBuilder();
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for (String k : keyArray) {
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if (k.equals(PayConstants.FIELD_SIGN)) {
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continue;
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}
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if (ObjectUtil.isNotNull(map.get(k))) // 参数值为空，则不参与签名
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sb.append(k).append("=").append(map.get(k)).append("&");
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}
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sb.append("key=").append(signKey);
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String sign = SecureUtil.md5(sb.toString()).toUpperCase();
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System.out.println("sign ========== " + sign);
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return sign;
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}
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/**
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* 获取sign
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* @param map 待签名数据
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* @param signKey 微信签名key
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* @return String
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*/
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public static String getSign(Map<String, String> map, String signKey) {
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// map排序
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Set<String> keySet = map.keySet();
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String[] keyArray = keySet.toArray(new String[keySet.size()]);
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Arrays.sort(keyArray);
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StringBuilder sb = new StringBuilder();
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for (String k : keyArray) {
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if (k.equals(PayConstants.FIELD_SIGN)) {
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continue;
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}
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if (StrUtil.isNotBlank(map.get(k)) && map.get(k).trim().length() > 0) // 参数值为空，则不参与签名
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sb.append(k).append("=").append(map.get(k).trim()).append("&");
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}
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sb.append("key=").append(signKey);
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String sign = SecureUtil.md5(sb.toString()).toUpperCase();
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System.out.println("sign ========== " + sign);
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return sign;
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}
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/**
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* 获取当前时间戳，单位秒
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* @return Long
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*/
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public static Long getCurrentTimestamp() {
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return System.currentTimeMillis()/1000;
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}
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/**
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* 获取当前时间戳，单位毫秒
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* @return Long
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*/
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public static Long getCurrentTimestampMs() {
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return System.currentTimeMillis();
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}
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/**
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* XML格式字符串转换为Map
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*
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* @param strXML XML字符串
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* @return XML数据转换后的Map
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* @throws Exception
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*/
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public static Map<String, String> xmlToMap(String strXML) throws Exception {
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try {
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Map<String, String> data = new HashMap<String, String>();
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DocumentBuilder documentBuilder = WXPayXmlUtil.newDocumentBuilder();
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InputStream stream = new ByteArrayInputStream(strXML.getBytes("UTF-8"));
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org.w3c.dom.Document doc = documentBuilder.parse(stream);
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doc.getDocumentElement().normalize();
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NodeList nodeList = doc.getDocumentElement().getChildNodes();
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for (int idx = 0; idx < nodeList.getLength(); ++idx) {
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Node node = nodeList.item(idx);
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if (node.getNodeType() == Node.ELEMENT_NODE) {
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org.w3c.dom.Element element = (org.w3c.dom.Element) node;
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data.put(element.getNodeName(), element.getTextContent());
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}
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}
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try {
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stream.close();
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} catch (Exception ex) {
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// do nothing
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}
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return data;
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} catch (Exception ex) {
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System.out.println(StrUtil.format("Invalid XML, can not convert to map. Error message: {}. XML content: {}", ex.getMessage(), strXML));
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throw ex;
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}
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}
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}
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