package com.mes.tools;
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public class HexConversion {
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/**
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* @param a shuzi
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* @return shuzu
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*/
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public static byte[] stringToInt(String a){
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byte[] byt = new byte[a.length()/2];
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for (int i = 0; i < a.length() - 1; i+=2) {
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String output = a.substring(i, i + 2);
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byt[i/2]=(byte)Integer.parseInt(output, 16);
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}
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return byt;
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}
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public static String byteToHexString(int bufSize,byte[] msg){
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String tempHex = "";
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String command = "";
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if (bufSize != -1) {
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for (int i = 0; i < bufSize; i++) {
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tempHex = Integer.toHexString(msg[i] & 0xFF);
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if (tempHex.length() == 1) {
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tempHex = "0" + tempHex;
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}
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command += tempHex;
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}
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}
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return command;
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}
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public static String intToHex(int number) {
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return Integer.toHexString(number);
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}
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/**
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* 将整数转换为4位16进制，如1转换为0001，10转换为000a
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*
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* @param number
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* @return
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*/
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public static String intTo2ByteHex(int number) {
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String numberHex = intToHex(number);
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numberHex = String.format("%4s", numberHex).replace(' ', '0');
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return numberHex;
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}
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/**
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* 将整数转换为2位16进制，如1转换为01，10转换为0a
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*
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* @param
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* @return
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*/
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public static String intTo1ByteHex(int number) {
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String numberHex = intToHex(number);
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numberHex = String.format("%2s", numberHex).replace(' ', '0');
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return numberHex;
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}
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/**
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* 从byte数组中取int数值，本方法适用于(低位在前，高位在后)的顺序，和和intToBytes()配套使用
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*
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* @param src: byte数组
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* @param offset: 从数组的第offset位开始
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* @return int数值
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*/
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public static int bytesToInt(byte[] src, int offset) {
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int value;
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value = (int) ((src[offset] & 0xFF)
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| ((src[offset+1] & 0xFF)<<8)
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| ((src[offset+2] & 0xFF)<<16)
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| ((src[offset+3] & 0xFF)<<24));
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return value;
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}
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}
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