chws/user-service/src/main/java/com/mh/user/utils/ExchangeStringUtil.java

package com.mh.user.utils;

import com.mh.common.utils.StringUtils;
//import io.netty.buffer.ByteBuf;
//import io.netty.channel.ChannelHandlerContext;
import java.io.*;
import java.math.BigInteger;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * @Auther: LJF
 * @Date: 2020-02-26 15:11
 * @Description:
 */
public class ExchangeStringUtil {

    public static void main(String args[]){

        String s = floatToHex(12555.45F);
        System.out.println(s);
        System.out.println(hexToLong("0000006C"));
        System.out.println(longToHex(317751L));
    }

    /**
     * 长整型转16进制
     * @param value
     * @return
     */
    public static String longToHex(long value) {
        String hexString = Long.toHexString(value);
        while (hexString.length() < 8) {
            hexString = "0" + hexString;
        }
        return hexString;
    }

    /**
     * 16进制转长整型
     * @param hexString
     * @return
     */
    public static long hexToLong(String hexString) {
        return Long.parseLong(hexString, 16); // 将16进制字符串解析为长整型
    }

    //十六进制转正负数十进制
    public static double parseHex4(String num) {
        if (num.length() != 4) {
            throw new NumberFormatException("Wrong length: " + num.length() + ", must be 4.");
        }
        int ret = Integer.parseInt(num, 16);
        ret = ((ret & 0x8000) > 0) ? (ret - 0x10000) : (ret);
        return (double) ret;
    }
    //十六进制转十进制
    public static int covert(String content){
        int number=0;
        String [] HighLetter = {"A","B","C","D","E","F"};
        Map<String,Integer> map = new HashMap<>();
        for(int i = 0;i <= 9;i++){
            map.put(i+"",i);
        }
        for(int j= 10;j<HighLetter.length+10;j++){
            map.put(HighLetter[j-10],j);
        }
        String[]str = new String[content.length()];
        for(int i = 0; i < str.length; i++){
            str[i] = content.substring(i,i+1);
        }
        for(int i = 0; i < str.length; i++){
            number += map.get(str[i])*Math.pow(16,str.length-1-i);
        }
        return number;
    }

    public static int  hexToDecimal(String hex){
        int outcome = 0;
        for(int i = 0; i < hex.length(); i++){
            char hexChar = hex.charAt(i);
            outcome = outcome * 16 + charToDecimal(hexChar);
        }
        return outcome;
    }
    public static int charToDecimal(char c){
        if(c >= 'A' && c <= 'F')
            return 10 + c - 'A';
        else
            return c - '0';
    }

//    /**
//     * 获取到对应的buffer
//     * @param ctx
//     * @param sendStr
//     * @return
//     */
//    public static ByteBuf getByteBuf(ChannelHandlerContext ctx, String sendStr) {
//        // byte类型的数据
////        byte[] bytes = "这里是将要写往服务端的数据".getBytes(Charset.forName("utf-8"));
////        String sendStr = "5803004900021914";          // 冷量计
//        // 申请一个数据结构存储信息
//        ByteBuf buffer = ctx.alloc().buffer();
//        // 将信息放入数据结构中
//        buffer.writeBytes(ExchangeStringUtil.hexStrToBinaryStr(sendStr));//对接需要16进制
//        return buffer;
//    }

    /**
     * double转换为String ：当为整数时，只显示整数，当小数时直接显示小数
     * @param num
     * @return
     */
    public static String doubleTrans1(double num){
        if(num % 1.0 == 0){
            return String.valueOf((long)num);
        }
        return String.valueOf(num);
    }

    /**
     * 获取String中的数值
     * @param result
     * @return
     */
    public static String getNumFromString(String result) {
        String regEx="[^0-9]";
        Pattern p = Pattern.compile(regEx);
        Matcher m = p.matcher(result);
        return m.replaceAll("").trim();
    }

    /**
     * 获取检验位值，update by ljf on 2020-06-02
     * @param result
     * @return
     */
    //返回指令+校验码
    public static String getCRCStr(String result) {
        byte[] strOrder = ExchangeStringUtil.hexStrToBinaryStr(result);
        int checkNum = CRC16.CRC16_MODBUS(strOrder);
        String checkWord = ExchangeStringUtil.decToHex(String.valueOf(checkNum));
        checkWord = ExchangeStringUtil.addZeroForNum(checkWord,4);
        checkWord = checkWord.substring(2,4) + checkWord.substring(0,2);
        result = result + checkWord;
        return result;
    }

    //只返回校验码
    public static String getStrCRC16(String result) {
        byte[] strOrder = ExchangeStringUtil.hexStrToBinaryStr(result);
        int checkNum = CRC16.CRC16_MODBUS(strOrder);
        String checkWord = ExchangeStringUtil.decToHex(String.valueOf(checkNum));
        checkWord = ExchangeStringUtil.addZeroForNum(checkWord,4);
        checkWord = checkWord.substring(2,4) + checkWord.substring(0,2);
        return checkWord;
    }

    public static String getMidString(String str, String beginStr, String endStr) {
        String regex = beginStr + "(.*)" + endStr;
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(str);
        String result = "";
        while (matcher.find()) {
            result = matcher.group(1);
        }
        return result;
    }

    /**
     * 字符串不足补“0”
     * @param str
     * @param strLength
     * @return
     */
    public static String addZeroForNum(String str, int strLength) {
        int strLen = str.length();
        if (strLen < strLength) {
            while (strLen < strLength) {
                StringBuffer sb = new StringBuffer();
                sb.append("0").append(str);// 左补0
                // sb.append(str).append("0");//右补0
                str = sb.toString();
                strLen = str.length();
            }
        }
        return str;
    }

    /**
     * ip地址转换成16进制long
     * @param ipString
     * @return
     */
    public static String ipToHex(String ipString) {
        String[] strings = ipString.split("\\.");
        String result = "";
        for (int i = 0; i < strings.length; i++) {
            result = result + ExchangeStringUtil.decToHex(strings[i]);
        }
        return result;
    }

    /**
     * ip地址转换成16进制long
     * @param ipString
     * @return
     */
    public static Long ipToLong(String ipString) {
        Long[] ip = new Long[4];
        int pos1= ipString.indexOf(".");
        int pos2= ipString.indexOf(".",pos1+1);
        int pos3= ipString.indexOf(".",pos2+1);
        ip[0] = Long.parseLong(ipString.substring(0 , pos1));
        ip[1] = Long.parseLong(ipString.substring(pos1+1 , pos2));
        ip[2] = Long.parseLong(ipString.substring(pos2+1 , pos3));
        ip[3] = Long.parseLong(ipString.substring(pos3+1));
        return (ip[0]<<24)+(ip[1]<<16)+(ip[2]<<8)+ip[3];
    }

    public static String splitData(String str, String strStart, String strEnd) {
        String tempStr;
        tempStr = str.substring(str.indexOf(strStart) + 1, str.lastIndexOf(strEnd));
        return tempStr;
    }

    public static String endData(String str, String strStart) {
        String tempStr;
        String str1=str.substring(0, str.indexOf(strStart));
        tempStr=str.substring(str1.length()+1);
        return tempStr;
    }

    // 转换位置
    public static String changePosition(String changeStr) {
        StringBuffer s1 = new StringBuffer();
        for (int i = changeStr.length(); i >= 2; i = i - 2) {
            s1 = s1.append(changeStr.substring(i - 2, i));
        }
        return s1.toString();
    }

    // 加33
    public static String addThree(String data){
        String result = "";
        for (int i = 0; i < data.length() / 2; i++) {
            BigInteger a = new BigInteger(data.substring(2*i,2*(i+1)),16);
            BigInteger b = new BigInteger("33",16);
            BigInteger c = a.add(b);
            result = result + ExchangeStringUtil.decToHex(c.toString(10));
        }

        return result;
    }

    // 减33
    public static String cutThree(String data){
        String result = "";
        for (int i = 0; i < data.length() / 2; i++) {
            BigInteger a = new BigInteger(data.substring(2*i,2*(i+1)),16);
            BigInteger b = new BigInteger("33",16);
            BigInteger c = a.subtract(b);
            result = result + ExchangeStringUtil.decToHex(c.toString(10));
        }

        return result;
    }

    public static String makeChecksum(String data) {
        if (data == null || data.equals("")) {
            return "";
        }
        int total = 0;
        int len = data.length();
        int num = 0;
        while (num < len) {
            String s = data.substring(num, num + 2);
            total += Integer.parseInt(s, 16);
            num = num + 2;
        }
        /**
         * 用256求余最大是255，即16进制的FF
         */
        int mod = total % 256;
        String hex = Integer.toHexString(mod);
        len = hex.length();
        // 如果不够校验位的长度，补0,这里用的是两位校验
        if (len < 2) {
            hex = "0" + hex;
        }
        return hex;
    }
    /**
     * 十进制数据转换为十六进制字符串数
     *
     * @param dec
     * @return
     */
    public static String decToHex(String dec) {
        BigInteger data = new BigInteger(dec,10);
        String result = data.toString(16);
        if (result.length() < 2) {
            result = "0" + result;
        }
        if ((result.length() % 2)!=0) {
            result = "0" + result;
        }
        return result.toUpperCase();
    }
    /**
     * 十六进制数据转换为十进制字符串数
     *
     * @param hex
     * @return
     */
    public static String hexToDec(String hex) {
        BigInteger data = new BigInteger(hex,16);
        return data.toString(10);
    }

    public static String IntToHex(int n){
        char[] ch = new char[20];
        int nIndex = 0;
        while ( true ){
            int m = n/16;
            int k = n%16;
            if ( k == 15 )
                ch[nIndex] = 'F';
            else if ( k == 14 )
                ch[nIndex] = 'E';
            else if ( k == 13 )
                ch[nIndex] = 'D';
            else if ( k == 12 )
                ch[nIndex] = 'C';
            else if ( k == 11 )
                ch[nIndex] = 'B';
            else if ( k == 10 )
                ch[nIndex] = 'A';
            else
                ch[nIndex] = (char)('0' + k);
            nIndex++;
            if ( m == 0 )
                break;
            n = m;
        }
        StringBuffer sb = new StringBuffer();
        sb.append(ch, 0, nIndex);
        sb.reverse();
        String strHex = new String("");
        strHex += sb.toString();
        return strHex;
    }

    // 字节数组转字符串
    public static String printHexString(byte[] b) {

        StringBuffer sbf = new StringBuffer();
        for (int i = 0; i < b.length; i++) {
            String hex = Integer.toHexString(b[i] & 0xFF);
            if (hex.length() == 1) {
                hex = '0' + hex;
            }
            sbf.append(hex.toUpperCase() + "  ");
        }
        return sbf.toString().trim();
    }

    public static String bytesToHexString(byte[] src){
        StringBuilder stringBuilder = new StringBuilder("");
        if (src == null || src.length <= 0) {
            return null;
        }
        for (int i = 0; i < src.length; i++) {
            int v = src[i] & 0xFF;
            String hv = Integer.toHexString(v);
            if (hv.length() < 2) {
                stringBuilder.append(0);
            }
            stringBuilder.append(hv);
        }
        return stringBuilder.toString();
    }

    /**
     * 字符串转化成为16进制字符串
     * @param s
     * @return
     */
    public static String strTo16(String s) {
        String str = "";
        for (int i = 0; i < s.length(); i++) {
            int ch = (int) s.charAt(i);
            String s4 = Integer.toHexString(ch);
            str = str + s4;
        }
        return str;
    }

    /**
     * 字符串转换成为16进制(无需Unicode编码)
     * @param str
     * @return
     */
    public static String str2HexStr(String str) {
        char[] chars = "0123456789ABCDEF".toCharArray();
        StringBuilder sb = new StringBuilder("");
        byte[] bs = str.getBytes();
        int bit;
        for (int i = 0; i < bs.length; i++) {
            bit = (bs[i] & 0x0f0) >> 4;
            sb.append(chars[bit]);
            bit = bs[i] & 0x0f;
            sb.append(chars[bit]);
            // sb.append(' ');
        }
        return sb.toString().trim();
    }

    /**
     * 16进制转换成为string类型字符串
     * @param s
     * @return
     */
    public static String hexStringToString(String s) {
        if (s == null || s.equals("")) {
            return null;
        }
        s = s.replace(" ", "");
        byte[] baKeyword = new byte[s.length() / 2];
        for (int i = 0; i < baKeyword.length; i++) {
            try {
                baKeyword[i] = (byte) (0xff & Integer.parseInt(s.substring(i * 2, i * 2 + 2), 16));
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        try {
            s = new String(baKeyword, "UTF-8");
            new String();
        } catch (Exception e1) {
            e1.printStackTrace();
        }
        return s;
    }

    /**
     * 字节转十六进制
     * @param b 需要进行转换的byte字节
     * @return  转换后的Hex字符串
     */
    public static String byteToHex(byte b){
        String hex = Integer.toHexString(b & 0xFF);
        if(hex.length() < 2){
            hex = "0" + hex;
        }
        return hex;
    }

    /**
     * hex字符串转byte数组
     * @param inHex 待转换的Hex字符串
     * @return  转换后的byte数组结果
     */
    public static byte[] hexToByteArray(String inHex){
        int hexlen = inHex.length();
        byte[] result;
        if (hexlen % 2 == 1){
            //奇数
            hexlen++;
            result = new byte[(hexlen/2)];
            inHex="0"+inHex;
        }else {
            //偶数
            result = new byte[(hexlen/2)];
        }
        int j=0;
        for (int i = 0; i < hexlen; i+=2){
            result[j]=(byte)Integer.parseInt(inHex.substring(i,i+2),16);
            j++;
        }
        return result;
    }

    /**
     * 将十六进制的字符串转换成字节数组
     *
     * @param hexString
     * @return
     */
    public static byte[] hexStrToBinaryStr(String hexString) {
        hexString = hexString.replaceAll(" ", "");
        int len = hexString.length();
        int index = 0;
        byte[] bytes = new byte[len / 2];
        while (index < len) {
            String sub = hexString.substring(index, index + 2);
            bytes[index/2] = (byte) Integer.parseInt(sub,16);
            index += 2;
        }
        return bytes;
    }

    /**
     * 获取当前日期 : "yyyy-MM-dd HH:mm:ss"
     *
     * @return "yyyy-MM-dd HH:mm:ss"字符串
     */
    public static String formatDateStr_ss() {
        return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date());
    }

    /**
     * 字符串是否为空
     * 如果这个字符串为null或者trim后为空字符串则返回true，否则返回false。
     * @param str
     * @return
     */
    public static boolean isEmpty(String str) {
        if (str == null || "".equals(str.trim()))
            return true;
        return false;
    }

    /**
     * 用来把mac字符串转换为long
     * @param strMac
     * @return
     */
    public static long macToLong(String strMac) {
        byte[] mb = new BigInteger(strMac, 16).toByteArray();
        ByteBuffer mD = ByteBuffer.allocate(mb.length);
        mD.put(mb);
        long mac = 0;
        // 如果长度等于8代表没有补0;
        if (mD.array().length == 8) {
            mac = mD.getLong(0);
        } else if (mD.array().length == 9) {
            mac = mD.getLong(1);
        }
        return mac;
    }

    public static byte[] getBytes(Object obj) throws IOException {
        ByteArrayOutputStream bout = new ByteArrayOutputStream();
        ObjectOutputStream out = new ObjectOutputStream(bout);
        out.writeObject(obj);
        out.flush();
        byte[] bytes = bout.toByteArray();
        bout.close();
        out.close();
        return bytes;
    }

    public static Object getObject(byte[] bytes) throws IOException, ClassNotFoundException {
        ByteArrayInputStream bi = new ByteArrayInputStream(bytes);
        ObjectInputStream oi = new ObjectInputStream(bi);
        Object obj = oi.readObject();
        bi.close();
        oi.close();
        return obj;
    }

    public static ByteBuffer getByteBuffer(Object obj) throws IOException {
        byte[] bytes = ExchangeStringUtil.getBytes(obj);
        ByteBuffer buff = ByteBuffer.wrap(bytes);
        return buff;
    }

    /**
     * byte[] 转short 2字节
     * @param bytes
     * @return
     */
    public static short bytesToshort(byte[] bytes) {
        return (short) ((bytes[0] & 0xff) | ((bytes[1] << 8) & 0xff00));

    }

    /**
     * byte 转Int
     * @param b
     * @return
     */
    public static int byteToInt(byte b) {
        return (b) & 0xff;
    }

    public static int bytesToInt(byte[] bytes) {
        int addr = bytes[0] & 0xFF;
        addr |= ((bytes[1] << 8) & 0xFF00);
        addr |= ((bytes[2] << 16) & 0xFF0000);
        addr |= ((bytes[3] << 24) & 0xFF000000);
        return addr;
    }

    public static byte[] intToByte(int i) {
        byte[] abyte0 = new byte[4];
        abyte0[0] = (byte) (0xff & i);
        abyte0[1] = (byte) ((0xff00 & i) >> 8);
        abyte0[2] = (byte) ((0xff0000 & i) >> 16);
        abyte0[3] = (byte) ((0xff000000 & i) >> 24);
        return abyte0;
    }

    public static byte[] LongToByte(Long i) {
        byte[] abyte0 = new byte[8];
        abyte0[0] = (byte) (0xff & i);
        abyte0[1] = (byte) ((0xff00 & i) >> 8);
        abyte0[2] = (byte) ((0xff0000 & i) >> 16);
        abyte0[3] = (byte) ((0xff000000 & i) >> 24);
        abyte0[4] = (byte) ((0xff00000000l & i) >> 32);
        abyte0[5] = (byte) ((0xff0000000000l & i) >> 40);
        abyte0[6] = (byte) ((0xff000000000000l & i) >> 48);
        abyte0[7] = (byte) ((0xff00000000000000l & i) >> 56);
        return abyte0;
    }

    /**
     * 函数名称：shortChange</br>
     * 功能描述：short 大端转小端
     * @param mshort
     */
    public static short shortChange(Short mshort) {
        mshort = (short) ((mshort >> 8 & 0xFF) | (mshort << 8 & 0xFF00));
        return mshort;
    }

    /**
     * 函数名称：intChange</br>
     * 功能描述：int 大端转小端
     * @param mint
     */
    public static int intChange(int mint) {
        mint = (int) (((mint) >> 24 & 0xFF) | ((mint) >> 8 & 0xFF00) | ((mint) << 8 & 0xFF0000)
                | ((mint) << 24 & 0xFF000000));
        return mint;
    }

    /**
     * 函数名称：intChange</br>
     * 功能描述：LONG 大端转小端
     * @param mlong
     */
    public static long longChange(long mlong) {

        mlong = (long) (((mlong) >> 56 & 0xFF) | ((mlong) >> 48 & 0xFF00) | ((mlong) >> 24 & 0xFF0000)
                | ((mlong) >> 8 & 0xFF000000) | ((mlong) << 8 & 0xFF00000000l) | ((mlong) << 24 & 0xFF0000000000l)
                | ((mlong) << 40 & 0xFF000000000000l) | ((mlong) << 56 & 0xFF00000000000000l));
        return mlong;
    }

    /**
     * 将byte转换为无符号的short类型
     * @param b 需要转换的字节数
     * @return 转换完成的short
     */
    public static short byteToUshort(byte b) {
        return (short) (b & 0x00ff);
    }

    /**
     * 将byte转换为无符号的int类型
     * @param b 需要转换的字节数
     * @return 转换完成的int
     */
    public static int byteToUint(byte b) {
        return b & 0x00ff;
    }

    /**
     * 将byte转换为无符号的long类型
     * @param b 需要转换的字节数
     * @return 转换完成的long
     */
    public static long byteToUlong(byte b) {
        return b & 0x00ff;
    }

    /**
     * 将short转换为无符号的int类型
     * @param s 需要转换的short
     * @return 转换完成的int
     */
    public static int shortToUint(short s) {
        return s & 0x00ffff;
    }

    /**
     * 将short转换为无符号的long类型
     *
     * @param s 需要转换的字节数
     * @return 转换完成的long
     */
    public static long shortToUlong(short s) {
        return s & 0x00ffff;
    }

    /**
     * 将int转换为无符号的long类型
     *
     * @param i 需要转换的字节数
     * @return 转换完成的long
     */
    public static long intToUlong(int i) {
        return i & 0x00ffffffff;
    }

    /**
     * 将short转换成小端序的byte数组
     *
     * @param s 需要转换的short
     * @return 转换完成的byte数组
     */
    public static byte[] shortToLittleEndianByteArray(short s) {
        return ByteBuffer.allocate(2).order(ByteOrder.LITTLE_ENDIAN).putShort(s).array();
    }

    /**
     * 将int转换成小端序的byte数组
     *
     * @param i 需要转换的int
     * @return 转换完成的byte数组
     */
    public static byte[] intToLittleEndianByteArray(int i) {
        return ByteBuffer.allocate(4).order(ByteOrder.LITTLE_ENDIAN).putInt(i).array();
    }

    /**
     * 将long转换成小端序的byte数组
     *
     * @param l 需要转换的long
     * @return 转换完成的byte数组
     */
    public static byte[] longToLittleEndianByteArray(long l) {
        return ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN).putLong(l).array();
    }

    /**
     * 将short转换成大端序的byte数组
     *
     * @param s 需要转换的short
     * @return 转换完成的byte数组
     */
    public static byte[] shortToBigEndianByteArray(short s) {
        return ByteBuffer.allocate(2).order(ByteOrder.BIG_ENDIAN).putShort(s).array();
    }

    /**
     * 将int转换成大端序的byte数组
     *
     * @param i 需要转换的int
     * @return 转换完成的byte数组
     */
    public static byte[] intToBigEndianByteArray(int i) {
        return ByteBuffer.allocate(2).order(ByteOrder.BIG_ENDIAN).putInt(i).array();
    }

    /**
     * 将long转换成大端序的byte数组
     *
     * @param l 需要转换的long
     * @return 转换完成的byte数组
     */
    public static byte[] longToBigEndianByteArray(long l) {
        return ByteBuffer.allocate(2).order(ByteOrder.BIG_ENDIAN).putLong(l).array();
    }

    /**
     * 将short转换为16进制字符串
     *
     * @param s              需要转换的short
     * @param isLittleEndian 是否是小端序（true为小端序false为大端序）
     * @return 转换后的字符串
     */
    public static String shortToHexString(short s, boolean isLittleEndian) {
        byte byteArray[] = null;
        if (isLittleEndian) {
            byteArray = shortToLittleEndianByteArray(s);
        } else {
            byteArray = shortToBigEndianByteArray(s);
        }
        return byteArrayToHexString(byteArray);
    }

    /**
     * 将int转换为16进制字符串
     *
     * @param i              需要转换的int
     * @param isLittleEndian 是否是小端序（true为小端序false为大端序）
     * @return 转换后的字符串
     */
    public static String intToHexString(int i, boolean isLittleEndian) {
        byte byteArray[] = null;
        if (isLittleEndian) {
            byteArray = intToLittleEndianByteArray(i);
        } else {
            byteArray = intToBigEndianByteArray(i);
        }
        return byteArrayToHexString(byteArray);
    }

    /**
     * 将long转换为16进制字符串
     *
     * @param l              需要转换的long
     * @param isLittleEndian 是否是小端序（true为小端序false为大端序）
     * @return 转换后的字符串
     */
    public static String longToHexString(long l, boolean isLittleEndian) {
        byte byteArray[] = null;
        if (isLittleEndian) {
            byteArray = longToLittleEndianByteArray(l);
        } else {
            byteArray = longToBigEndianByteArray(l);
        }
        return byteArrayToHexString(byteArray);
    }

    /**
     * 将字节数组转换成16进制字符串
     * @param array   需要转换的字符串
     * @param toPrint 是否为了打印输出，如果为true则会每4自己添加一个空格
     * @return 转换完成的字符串
     */
//	public static String byteArrayToHexString(byte[] array, boolean toPrint) {
//		if (array == null) {
//			return "null";
//		}
//		StringBuffer sb = new StringBuffer();
//
//		for (int i = 0; i < array.length; i++) {
//			sb.append(byteToHex(array[i]));
//			if (toPrint && (i + 1) % 4 == 0) {
//				sb.append(" ");
//			}
//		}
//		return sb.toString();
//	}

    /**
     * 字节数组转换成String，指定长度转换长度
     * @param arrBytes
     * @param count    转换长度
     * @param blank    要不要空格（每个byte字节，最是否用一个“ ”隔开）
     * @return "" | arrBytes换成的字符串（不存在null）
     */
    public static String byteArray2HexString(byte[] arrBytes, int count, boolean blank) {
        String ret = "";
        if (arrBytes == null || arrBytes.length < 1)
            return ret;
        if (count > arrBytes.length)
            count = arrBytes.length;
        StringBuilder builder = new StringBuilder();
        for (int i = 0; i < count; i++) {
            ret = Integer.toHexString(arrBytes[i] & 0xFF).toUpperCase();
            if (ret.length() == 1)
                builder.append("0").append(ret);
            else
                builder.append(ret);
            if (blank)
                builder.append(" ");
        }
        return builder.toString();
    }

    public static String hexStr2Str(String hexStr) {
        String string = "0123456789ABCDEF";
        char[] hexs = hexStr.toCharArray();
        byte[] bytes = new byte[hexStr.length() / 2];
        int n;
        for (int i = 0; i < bytes.length; i++) {
            n = string.indexOf(hexs[2 * i]) * 16;
            n += string.indexOf(hexs[2 * i + 1]);
            bytes[i] = (byte) (n & 0xff);
        }
        return new String(bytes);
    }

    /**
     * 将指定字符串src，以每两个字符分割转换为16进制形式 如："2B44EFD9" --> byte[]{0x2B, 0x44, 0xEF, 0xD9}
     * @param src String
     * @return null | byte[]
     */
    public static byte[] HexString2Bytes(String src) {
        // String strTemp = "";
        if (src == null || "".equals(src))
            return null;
        StringBuilder builder = new StringBuilder();
        for (char c : src.trim().toCharArray()) {
            /* 去除中间的空格 */
            if (c != ' ') {
                builder.append(c);
            }
        }
        src = builder.toString();
        byte[] ret = new byte[src.length() / 2];
        byte[] tmp = src.getBytes();
        for (int i = 0; i < src.length() / 2; i++) {
            ret[i] = uniteBytes(tmp[i * 2], tmp[i * 2 + 1]);
        }
        return ret;
    }

    /**
     * 将两个ASCII字符合成一个字节； 如："EF"--> 0xEF
     * @param src0 byte
     * @param src1 byte
     * @return byte
     */
    public static byte uniteBytes(byte src0, byte src1) {
        byte _b0 = Byte.decode("0x" + new String(new byte[] { src0 })).byteValue();
        _b0 = (byte) (_b0 << 4);
        byte _b1 = Byte.decode("0x" + new String(new byte[] { src1 })).byteValue();
        byte ret = (byte) (_b0 ^ _b1);
        return ret;
    }

    /**
     * 将字节数组转换成16进制字符串
     * @param array 需要转换的字符串(字节间没有分隔符)
     * @return 转换完成的字符串
     */
    public static String byteArrayToHexString(byte[] array) {
        return byteArray2HexString(array, Integer.MAX_VALUE, false);
    }

    /**
     * 将字节数组转换成long类型
     * @param bytes 字节数据
     * @return long类型
     */
    public static long byteArrayToLong(byte[] bytes) {
        return ((((long) bytes[0] & 0xff) << 24) | (((long) bytes[1] & 0xff) << 16) | (((long) bytes[2] & 0xff) << 8)
                | (((long) bytes[3] & 0xff) << 0));
    }

    /**
     * 合并数组
     * @param firstArray  第一个数组
     * @param secondArray 第二个数组
     * @return 合并后的数组
     */
    public static byte[] concat(byte[] firstArray, byte[] secondArray) {
        if (firstArray == null || secondArray == null) {
            if (firstArray != null)
                return firstArray;
            if (secondArray != null)
                return secondArray;
            return null;
        }
        byte[] bytes = new byte[firstArray.length + secondArray.length];
        System.arraycopy(firstArray, 0, bytes, 0, firstArray.length);
        System.arraycopy(secondArray, 0, bytes, firstArray.length, secondArray.length);
        return bytes;
    }

    //字符转二进制
    public static String toBinary(String str){
        char[] strChar=str.toCharArray();
        String result="";
        for(int i=0;i<strChar.length;i++){
            result +=Integer.toBinaryString(strChar[i])+ " ";
        }
        System.out.println(result);
        return result;
    }
    /**
     * 将16进制转换为二进制
     * @param hexString
     * @return
     */
    public static String hexString2binaryString(String hexString) {
        //16进制转10进制
        BigInteger sint = new BigInteger(hexString, 16);
        //10进制转2进制
        String result = sint.toString(2);
        //字符串反转
        //return new StringBuilder(result).reverse().toString();
        return result;
    }

    //将十六进制转换为二进制
    public static byte[] parseHexStr2Byte(String str){
        if(str.length() < 1)
            return null;
        byte[] result = new byte[str.length()/2];
        for (int i = 0;i< str.length()/2; i++) {
            int high = Integer.parseInt(str.substring(i*2, i*2+1), 16);
            int low = Integer.parseInt(str.substring(i*2+1, i*2+2), 16);
            result[i] = (byte) (high * 16 + low);
        }
        return result;
    }

    //将二进制字符转换为十六进制
    public static String parseByte2HexStr(String str){
        int i = Integer.parseInt(str,2);   //将二进制转为十进制
        String j = Integer.toHexString(i);       //将十进制转为十六进制
        return j;
    }

    //将二进字节数组制转换为十六进制
    public static String parseByte2HexStr(byte[] binary){
        StringBuffer sb = new StringBuffer();
        for (byte b : binary) {
            String hex = Integer.toHexString(b & 0xFF);
            if (hex.length() == 1) {
                hex = '0' + hex;
            }
            sb.append(hex.toUpperCase());
        }
        return sb.toString().trim();
    }
    /**
     * 十六进制字符串转IEEE754浮点型
     * @param s
     * @author: 若非
     * @date: 2021/9/10 16:57
     */
    public static float hexToSingle(String s ) {
        BigInteger data = new BigInteger(s,16);
        return Float.intBitsToFloat(data.intValue());
    }

    //判断字符串是否为json格式
    public static boolean getJSONType(String str) {
        boolean result = false;
        if (!StringUtils.isBlank(str)) {
            str = str.trim();
            if (str.startsWith("{") && str.endsWith("}")) {
                result = true;
            } else if (str.startsWith("[") && str.endsWith("]")) {
                result = true;
            }
        }
        return result;
    }

    public static long daysBetween(Date one, Date two) {
        long difference =  (one.getTime()-two.getTime())/86400000;
        return Math.abs(difference);
    }

    /** 比较两个字符串时间大小 */
    public static int compareTwoTime(String time1, String time2) {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(
                "yyyy-MM-dd HH:mm:ss");
        int flagValue = 0;
        try {
            Date date1, date2;
            date1 = simpleDateFormat.parse(time1);
            date2 = simpleDateFormat.parse(time2);
            long millisecond = date1.getTime() - date2.getTime();
            if (millisecond > 0) {
                flagValue = 1;
            } else if (millisecond < 0) {
                flagValue = -1;
            } else if (millisecond == 0) {
                flagValue = 0;
            }
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return (flagValue);
    }

    /** 表两个时间差 */
    public static int compareTwoTime(Date time1, Date time2) {
        int flagValue = 0;
        try {
            long millisecond = time1.getTime() - time2.getTime();
            if (millisecond > 0) {
                flagValue = 1;
            } else if (millisecond < 0) {
                flagValue = -1;
            } else if (millisecond == 0) {
                flagValue = 0;
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return (flagValue);
    }

    /** 比较两个时间相差天数 */
    public static float calculateTimeGapDay(String time1, String time2) {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(
                "yyyy-MM-dd HH:mm:ss");
        float day = 0;
        Date date1 = null;
        Date date2 = null;
        try {
            date1 = simpleDateFormat.parse(time1);
            date2 = simpleDateFormat.parse(time2);
            long millisecond = date2.getTime() - date1.getTime();
            day = millisecond / (24 * 60 * 60 * 1000);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return (day);
    }

    /** 比较两个时间相差天数 */
    public static float calculateTimeGapDay(Date time1, Date time2) {
        float day = 0;
        try {
            Date date1, date2;
            date1 = time1;
            date2 = time2;
            long millisecond = date2.getTime() - date1.getTime();
            day = millisecond / (24 * 60 * 60 * 1000);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return (day);
    }

    /** 比较两个时间相差小时 */
    public static double calculateTimeGapHour(String time1, String time2) {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(
                "yyyy-MM-dd HH:mm:ss");
        double hour = 0;
        try {
            Date date1, date2;
            date1 = simpleDateFormat.parse(time1);
            date2 = simpleDateFormat.parse(time2);
            double millisecond = date2.getTime() - date1.getTime();
            hour = millisecond / (60 * 60 * 1000);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return hour;
    }

    /** 比较两个时间相差小时 */
    public static double calculateTimeGapHour(Date date1, Date date2) {
        double hour = 0;
        double millisecond = date2.getTime() - date1.getTime();
        hour = millisecond / (60 * 60 * 1000);
        return hour;
    }

    /** 比较两个时间相差分钟 */
    public static double calculateTimeGapMinute(String time1, String time2) {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        double minute = 0;
        try {
            Date date1, date2;
            date1 = simpleDateFormat.parse(time1);
            date2 = simpleDateFormat.parse(time2);
            double millisecond = date2.getTime() - date1.getTime();
            minute = millisecond / (60 * 1000);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return minute;
    }

    /** 比较两个时间相差分钟 */
    public static double calculateTimeGapMinute(Date date1, Date date2) {
        double minute = 0;
        double millisecond = date2.getTime() - date1.getTime();
        minute = millisecond / (60 * 1000);
        return minute;
    }

    /** 比较两个时间相差秒 */
    public static double calculateTimeGapSecond(String time1, String time2) {
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(
                "yyyy-MM-dd HH:mm:ss");
        double second = 0;
        try {
            Date date1, date2;
            date1 = simpleDateFormat.parse(time1);
            date2 = simpleDateFormat.parse(time2);
            double millisecond = date2.getTime() - date1.getTime();
            second = millisecond / (1000);
        } catch (ParseException e) {
            e.printStackTrace();
        }
        return second;
    }

    /** 比较两个时间相差秒 */
    public static double calculateTimeGapSecond(Date date1, Date date2) {
        double second = 0;
        double millisecond = date2.getTime() - date1.getTime();
        second = millisecond / (1000);
        return second;
    }

    public static int compareCopyTime(String time1, String time2) {
        int flagValue = 0;
        double millisecond =calculateTimeGapMinute(time1,time2);
        if (millisecond > 180) {
                flagValue = 1;
        } else if (millisecond < 180) {
                flagValue = -1;
        } else if (millisecond == 180) {
                flagValue = 0;
        }
        return (flagValue);
    }

    /**
     * 浮点转16进制
     * @param value
     * @return
     */
    public static String floatToHex(float value) {
        int intValue = Float.floatToIntBits(value) & 0xFFFFFFFF;
        String hexString = Integer.toHexString(intValue);
        while (hexString.length() < 8) {
            hexString = "0" + hexString;
        }
        return hexString;
    }

    /**
     * 16进制转浮点
     * @param hexString
     * @return
     */
    public static float hexToFloat(String hexString) {
        int intBits = Integer.parseInt(hexString, 16); // 将16进制字符串解析为整数
        return Float.intBitsToFloat(intBits); // 将整数值转换为浮点数
    }


}