package com.panzhihua.common.utlis;
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import java.io.ByteArrayInputStream;
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import java.io.InputStream;
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import java.math.BigDecimal;
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import java.net.InetAddress;
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import java.net.UnknownHostException;
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import java.nio.charset.StandardCharsets;
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import java.security.MessageDigest;
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import java.text.SimpleDateFormat;
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import java.util.*;
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import org.jdom2.input.SAXBuilder;
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public class PayUtil {
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/**
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* 获取当前机器的ip
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*/
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public static String getLocalIp() {
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InetAddress ia = null;
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String localip = null;
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try {
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ia = InetAddress.getLocalHost();
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localip = ia.getHostAddress();
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} catch (UnknownHostException e) {
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e.printStackTrace();
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}
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return localip;
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}
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@SuppressWarnings("rawtypes")
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public static String getRequestXml(SortedMap<Object, Object> parameters) {
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StringBuffer sb = new StringBuffer();
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sb.append("<xml>");
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Set es = parameters.entrySet();
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Iterator it = es.iterator();
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while (it.hasNext()) {
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Map.Entry entry = (Map.Entry)it.next();
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String k = (String)entry.getKey();
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String v = (String)entry.getValue();
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if ("attach".equalsIgnoreCase(k) || "body".equalsIgnoreCase(k) || "sign".equalsIgnoreCase(k)) {
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sb.append("<" + k + ">" + "<![CDATA[" + v + "]]></" + k + ">");
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} else {
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sb.append("<" + k + ">" + v + "</" + k + ">");
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}
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}
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sb.append("</xml>");
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return sb.toString();
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}
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/**
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* 创建签名Sign
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*/
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@SuppressWarnings("rawtypes")
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public static String createSign(String characterEncoding, SortedMap<Object, Object> parameters, String key) {
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StringBuffer sb = new StringBuffer();
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Set es = parameters.entrySet();
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Iterator<?> it = es.iterator();
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while (it.hasNext()) {
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Map.Entry entry = (Map.Entry)it.next();
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String k = (String)entry.getKey();
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if (entry.getValue() != null || !"".equals(entry.getValue())) {
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String v = String.valueOf(entry.getValue());
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if (null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)) {
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sb.append(k + "=" + v + "&");
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}
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}
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}
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sb.append("key=" + key);
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String sign = "";
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try {
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sign = MD5(sb.toString());
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} catch (Exception e) {
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return e.getMessage();
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}
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return sign;
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}
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/**
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* 生成随机数
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*/
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public static String makeUUID(int len) {
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return UUID.randomUUID().toString().replaceAll("-", "").substring(0, len);
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}
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/**
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* 生成订单号
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*/
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public static String generateOrderNo() {
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SimpleDateFormat sdf = new SimpleDateFormat("yyMMdd");
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return sdf.format(new Date()) + makeUUID(16);
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}
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/**
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* 解析xml
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*/
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public static Map doXMLParse(String strxml) throws Exception {
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strxml = strxml.replaceFirst("encoding=\".*\"", "encoding=\"UTF-8\"");
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if (StringUtils.isNotEmpty(strxml)) {
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return null;
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}
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Map m = new HashMap();
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InputStream in = new ByteArrayInputStream(strxml.getBytes(StandardCharsets.UTF_8));
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SAXBuilder builder = new SAXBuilder();
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org.jdom2.Document doc = builder.build(in);
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org.jdom2.Element root = doc.getRootElement();
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List list = root.getChildren();
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Iterator it = list.iterator();
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while (it.hasNext()) {
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org.jdom2.Element e = (org.jdom2.Element)it.next();
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String k = e.getName();
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String v = "";
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List children = e.getChildren();
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if (children.isEmpty()) {
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v = e.getTextNormalize();
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} else {
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v = getChildrenText(children);
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}
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m.put(k, v);
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}
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// 关闭流
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in.close();
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return m;
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}
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/**
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* 获取子节点的xml
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*/
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public static String getChildrenText(List children) {
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StringBuffer sb = new StringBuffer();
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if (!children.isEmpty()) {
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Iterator it = children.iterator();
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while (it.hasNext()) {
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org.jdom2.Element e = (org.jdom2.Element)it.next();
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String name = e.getName();
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String value = e.getTextNormalize();
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List list = e.getChildren();
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sb.append("<" + name + ">");
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if (!list.isEmpty()) {
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sb.append(getChildrenText(list));
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}
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sb.append(value);
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sb.append("</" + name + ">");
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}
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}
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return sb.toString();
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}
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/**
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* 转换金额到整型
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*/
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public static String moneyToIntegerStr(BigDecimal money) {
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int amount = money.multiply(new BigDecimal((100))).setScale(0, BigDecimal.ROUND_HALF_UP).intValue();
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return String.valueOf(amount);
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}
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/**
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* 微信下单，map to xml
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*
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* @param params
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* 参数
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* @return String
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*/
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public static String mapToXml(Map<String, String> params) {
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StringBuilder xml = new StringBuilder();
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xml.append("<xml>");
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for (Map.Entry<String, String> entry : params.entrySet()) {
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String key = entry.getKey();
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String value = entry.getValue();
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// 略过空值
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if (StringUtils.isEmpty(value))
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continue;
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xml.append("<").append(key).append("><![CDATA[");
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xml.append(entry.getValue());
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xml.append("]]></").append(key).append(">");
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}
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xml.append("</xml>");
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return xml.toString();
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}
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/**
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* 生成 MD5
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*
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* @param data
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* 待处理数据
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* @return MD5结果
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*/
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public static String MD5(String data) throws Exception {
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java.security.MessageDigest md = MessageDigest.getInstance("MD5");
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byte[] array = md.digest(data.getBytes(StandardCharsets.UTF_8));
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StringBuilder sb = new StringBuilder();
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for (byte item : array) {
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sb.append(Integer.toHexString((item & 0xFF) | 0x100), 1, 3);
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}
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return sb.toString().toUpperCase();
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}
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public static String create_timestamp() {
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return Long.toString(System.currentTimeMillis() / 1000);
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}
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}
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