package com.hxzkoa.udp;
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@SuppressWarnings("unused")
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public class Tools {
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/**
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* 将十六进制的字符串转换成字节数组
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*
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* @param hexString
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* @return
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*/
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public static byte[] hexStrToBinaryStr(String hexString) {
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if (hexString==null) {
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return null;
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}
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hexString = hexString.replaceAll(" ", "");
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int len = hexString.length();
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int index = 0;
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byte[] bytes = new byte[len / 2];
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while (index < len) {
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String sub = hexString.substring(index, index + 2);
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bytes[index/2] = (byte)Integer.parseInt(sub,16);
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index += 2;
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}
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return bytes;
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}
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/**
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* 将十六进制的字符串转换成字节数组不去除空格
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*
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* @param hexString
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* @return
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*/
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public static byte[] hexStrToBinaryStr2(String hexString) {
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if (hexString==null) {
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return null;
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}
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int len = hexString.length();
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int index = 0;
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byte[] bytes = new byte[len / 2];
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while (index < len) {
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String sub = hexString.substring(index, index + 2);
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bytes[index/2] = (byte)Integer.parseInt(sub,16);
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index += 2;
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}
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return bytes;
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}
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public static final int registersToInt(byte[] bytes) {
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return (
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((bytes[0] & 0xff) << 24) |
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((bytes[1] & 0xff) << 16) |
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((bytes[2] & 0xff) << 8) |
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(bytes[3] & 0xff)
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);
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}//registersToInt
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/**将字节数组转为16进制字符串*/
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public static String Bytes2HexString(byte[] b) {
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String ret = "";
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for (int i = 0; i < b.length; i++) {
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String hex = Integer.toHexString(b[i] & 0xFF);
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if (hex.length() == 1) {
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hex = '0' + hex;
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}
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ret += hex.toUpperCase();
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}
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return ret;
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}
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//assicc转16进制
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public static byte[] assictohex(byte[] bytes){
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byte by[]=new byte[4];
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by[0]=0;
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by[1]=0;
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by[2]=(byte) Integer.parseInt(Tools.convertHexToString(Tools.Bytes2HexString(bytes)).substring(0, 2), 16);
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by[3]=(byte) Integer.parseInt(Tools.convertHexToString(Tools.Bytes2HexString(bytes)).substring(2, 4), 16);
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return by;
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}
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public static String convertHexToString(String hex){
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StringBuilder sb = new StringBuilder();
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StringBuilder temp = new StringBuilder();
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for( int i=0; i<hex.length()-1; i+=2 ){
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//grab the hex in pairs
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String output = hex.substring(i, (i + 2));
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//convert hex to decimal
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int decimal = Integer.parseInt(output, 16);
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//convert the decimal to character
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sb.append((char)decimal);
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temp.append(decimal);
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}
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return sb.toString();
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}
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public static final float registersToFloat(byte[] bytes) {
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return Float.intBitsToFloat((
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((bytes[0] & 0xff) << 24) |
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((bytes[1] & 0xff) << 16) |
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((bytes[2] & 0xff) << 8) |
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(bytes[3] & 0xff)
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));
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}//
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@SuppressWarnings("unused")
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private static String intToHex(int n) {
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StringBuffer s = new StringBuffer();
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String a;
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char []b = {'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'};
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while(n != 0){
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s = s.append(b[n%16]);
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n = n/16;
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}
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a = s.reverse().toString();
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return a;
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}
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//将返回的数据转化为10进制数据
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public static int ormntoint(byte[] bytes){
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int aa=0;
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aa=bytes[0]-48 +(bytes[1]-48)*10+(bytes[2]-48)*100+(bytes[3]-48)*1000;
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return aa;
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}
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/**读串口请求读数据包
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* @param ref 启始地址
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* @param lenth 数据长度*/
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public static byte[] ReadData(byte ref ,byte lenth) {
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byte[] buf =new byte[10];
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byte[] buf1 =new byte[6];
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//包头
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buf[0]=(byte) 0x55;
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//包头
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buf[1]=(byte) 0xAA;
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//指令类型(参数读写模式)
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buf1[0]=(byte) 0x03;
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//数据长度
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buf1[1]=(byte) 0x06;
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//读模式(读模式)
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buf1[2]=(byte) 0x01;
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//起始地址
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buf1[3]=(byte) ref;
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//数据长度
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buf1[4]=(byte) lenth;
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//固定值(读模式下为0x00)
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buf1[5]=(byte) 0x00;
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for(int i=0;i<buf1.length;i++) {
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buf[i+2]=buf1[i];
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}
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//校验码
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buf[8]=Jiaoyan.check(buf1)[1];
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buf[9]=Jiaoyan.check(buf1)[0];
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return buf;
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}
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//写串口请求读数据包
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public static byte[] WriteData(byte ref ,byte lenth,int value) {
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byte[] buf =new byte[9+lenth];
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byte[] buf1 =new byte[5+lenth];
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//包头
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buf[0]=(byte) 0x55;
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//包头
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buf[1]=(byte) 0xAA;
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//指令类型
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buf1[0]=(byte) 0x03;
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//数据长度
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buf1[1]=(byte) ((byte) 5+lenth);
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//读模式
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buf1[2]=(byte) 0x02;
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//起始地址
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buf1[3]=(byte) ref;
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//数据长度
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buf1[4]=(byte) lenth;
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//写入值
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if(lenth==2) {
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buf1[5]=ModbusUtil.intToRegisters(value)[2];
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buf1[6]=ModbusUtil.intToRegisters(value)[3];
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}
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for(int i=0;i<buf1.length;i++) {
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buf[i+2]=buf1[i];
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}
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//校验码
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buf[buf.length-2]=Jiaoyan.check(buf1)[1];
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buf[buf.length-1]=Jiaoyan.check(buf1)[0];
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return buf;
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}
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}
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