package ng.devices;
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import java.text.DecimalFormat;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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public class HexUtil {
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public static String formatHex(String hex) {
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String result = "";
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for (int i = 0; i < hex.length() - 1; i+=2) {
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String output = hex.substring(i, i + 2);
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result += ("0x" + output + " ");
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}
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if (result.length() > 0) {
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result = result.substring(0, result.lastIndexOf(" "));
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}
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return result;
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}
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//æ£å¸¸çåæ¯æ°ååæåèæ°åé?ç»çå
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public static String asciiToHex(String str) {
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char[] chars = str.toCharArray();
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StringBuffer hex = new StringBuffer();
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for (int i = 0; i < chars.length; i++) {
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hex.append(Integer.toHexString(chars[i]));
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}
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return hex.toString();
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}
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public static String hexToAscii(String hex) {
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StringBuffer result = new StringBuffer();
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for (int i = 0; i < hex.length() - 1; i+= 2) {
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String output = hex.substring(i, i + 2);
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int decimal = Integer.parseInt(output, 16);
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result.append((char) decimal);
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}
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return result.toString();
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}//12300 //00321
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//äºè¿å¶è½¬åè¿å?
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public static int int2ToHex(String number) {
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return Integer.parseInt(number, 2);
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}
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//äºè¿å¶è½¬16è¿å¶ 4ä½?
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public static String intBinaryTo16(String number) {
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int num=int2ToHex(number);
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return intTo2ByteHex(num);
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}
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//åå
è¿å¶è½¬åè¿å¶
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public static int int16ToHex(String number) {
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return Integer.parseInt(number, 16);
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}
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//åè¿å¶è½¬äºè¿å?
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public static String intToBinary(int number) {
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return Integer.toBinaryString(number);
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}
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//åå
è¿å¶è½¬äºè¿å¶
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public static String int16ToBinary(String number) {
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return intToBinary(int16ToHex(number));
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}
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//åå
è¿å¶è½¬äºè¿å¶
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public static String int16ToBinaryEight(String number,int count) {
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String binary=int16ToBinary(number);
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String zero="";
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for (int i = 0; i <count-binary.length(); i++) {
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zero+="0";
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}
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binary=zero+binary;
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return binary;
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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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* å°æ´æ°è½¬æ¢ä¸º2ä½?16è¿å¶ï¼å¦1转æ¢ä¸?01ï¼?10转æ¢ä¸?0a
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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 intTo1ByteHex(int number) {
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String numberHex = HexUtil.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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* å°æ´æ°è½¬æ¢ä¸º4ä½?16è¿å¶ï¼å¦1转æ¢ä¸?0001ï¼?10转æ¢ä¸?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 = HexUtil.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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* å°æ´æ°è½¬æ¢ä¸º8ä½?16è¿å¶ï¼å¦1转æ¢ä¸?00000001ï¼?10转æ¢ä¸?0000000a
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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 intTo4ByteHex(int number) {
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String numberHex = HexUtil.intToHex(number);
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numberHex = String.format("%8s", numberHex).replace(' ', '0');
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return numberHex;
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}
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/**
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* å°æ¶é´è½¬æ¢ä¸º16è¿å¶æ ¼å¼ï¼å¹´ï¼?2åèï¼? + æï¼1åèï¼? + æ¥ï¼1åèï¼? + æ¶ï¼1åèï¼? + åï¼1åèï¼? + ç§ï¼1åèï¼?
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*
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* @param time
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* @return
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*/
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public static String timeToHex(Date time) {
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Calendar c = Calendar.getInstance();
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c.setTime(time);
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String yearHex = intTo2ByteHex(c.get(Calendar.YEAR));
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String monthHex = intTo1ByteHex(c.get(Calendar.MONTH) + 1);
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String dayHex = intTo1ByteHex(c.get(Calendar.DAY_OF_MONTH));
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String hourHex = intTo1ByteHex(c.get(Calendar.HOUR_OF_DAY));
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String minuteHex = intTo1ByteHex(c.get(Calendar.MINUTE));
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String secondHex = intTo1ByteHex(c.get(Calendar.SECOND));
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return yearHex + monthHex + dayHex + hourHex + minuteHex + secondHex;
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}
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/**
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* å°?16è¿å¶çæ¶é´è½¬æ¢ä¸ºyyyy-MM-dd HH:mm:ssçæ ¼å¼?
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*
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* @param hexTime
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* @return
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*/
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public static String hexToTime(String hexTime) {
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String year = hexTo4DigitInt(hexTime.substring(0, 4));
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String month = hexTo2DigitInt(hexTime.substring(4, 6));
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String day = hexTo2DigitInt(hexTime.substring(6, 8));
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String hour = hexTo2DigitInt(hexTime.substring(8, 10));
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String minute = hexTo2DigitInt(hexTime.substring(10, 12));
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String second = hexTo2DigitInt(hexTime.substring(12, 14));
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return year + "-" + month + "-" + day + " " + hour + ":" + minute + ":" + second;
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}
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//åå
è¿å¶è½?10è¿å¶
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public static int hexToInt(String hex) {
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return Integer.parseInt(hex, 16);
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}
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//åå
è¿å¶è½¬æ10è¿å¶åä½
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public static String hexTo4DigitInt(String hex) {
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return new DecimalFormat("0000").format(hexToInt(hex));
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}
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//åå
è¿å¶è½¬æ10è¿å¶ä¸¤ä½
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public static String hexTo2DigitInt(String hex) {
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return new DecimalFormat("00").format(hexToInt(hex));
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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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/**
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* å°åè转æ¢ä¸ºä¸¤ä½åå
è¿å¶å符串ï¼ä¸å¤ä½åå?0
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*
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* @param b
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* @return
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*/
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public static String byteToHexString(byte b) {
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String hex = Integer.toHexString(b & 0xFF);
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if (hex.length() == 1) {
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hex = "0" + hex;
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}
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return hex;
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}
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/**
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* å°åå
è¿å¶å符ï¼è½¬æ¢æäºè¿å¶çåç¬?
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*
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* @param b
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* @return
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*/
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public static String getBin(String hex){
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String[] hexs = new String[]{"0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
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"a", "b", "c", "d", "e", "f"};
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String[] bins = new String[]{"0000", "0001", "0010", "0011", "0100", "0101",
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"0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111"};
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int i;
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for(i=0; i<hexs.length && !hex.toLowerCase().equals(hexs[i]); i++);
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return bins[i];
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}
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/**
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* å°åå
è¿å¶å符ï¼è½¬æ¢æäºè¿å¶çåç¬?
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*
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* @param b
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* @return
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*/
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public static String gethex(String hex){
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String[] hexs = new String[]{"0000", "0001", "0002", "0003", "0004", "0005", "0006", "0007", "0008", "0009",
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"000a", "000b", "000c", "000d", "000e", "000f"};
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String[] bins = new String[]{"0000", "0001", "0010", "0011", "0100", "0101",
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"0110", "0111", "1000", "1001", "1010", "1011", "1100", "1101", "1110", "1111"};
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int i;
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for(i=0; i<bins.length && !hex.toLowerCase().equals(bins[i]); i++);
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return hexs[i];
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}
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/**
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* åè¿å¶åèæ°ç»è½¬åå
è¿å¶å符ä¸?
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* @param bufSize
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* @param msg
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* @return
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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 hexToBinary(String hexString) {
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String binaryString = Integer.toBinaryString(hexToInt(hexString));
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return String.format("%16s", binaryString).replace(' ', '0');
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}
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public static String binaryTo2ByteHex(String binaryString) {
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String HexString = Integer.toHexString(Integer.parseInt(binaryString, 2));
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return String.format("%4s", HexString).replace(' ', '0');
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}
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public static void main(String[] args) {
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// System.out.println(HexUtil.hexToAscii("3c5354413e48656c6c6f20576f726c64217c5468697320697320746865206669727374207369676e616c2066726f6d20646576696365213c454f463e"));
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// System.out.println(HexUtil.asciiToHex("<STA>Hello World!|This is the first signal from device!<EOF>"));
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//
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// System.out.println(String.format("%4S", HexUtil.intToHex(55)).replace(' ', '0'));
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// System.out.println(HexUtil.hexToInt("00d2"));
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//
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// System.out.println(HexUtil.formatHex("3c5354413e"));
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String message = "Hello World!|This is the first signal from device!";
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int length = message.length() * 2 + 10; // é¿åº¦å
æ¬ç»å°¾ç?<EOF>ï¼ä¸ä¸ªå符å¨ä¿¡å·ä¸ç±ä¸¤ä¸ªåè表示ã?
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String command = HexUtil.asciiToHex("<STA>"); // æ·»å å¼?å§æ è¯?
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command += (String.format("%4s", HexUtil.intToHex(length)).replace(' ', '0')); // æ·»å é¿åº¦æ è¯
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command += "01"; // æ·»å 设å¤ç±»å 0x01表示åå²æºï¼0x02表示é¢åç?
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command += "0001"; // æ·»å 设å¤åå·ï¼?0x0001表示åºæ¬æ¬¾ï¼0x0002表示ä¸çº§æ¬?
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command += "0000"; // åè½å·ï¼0x0000æ¯ä¸ä½æºä¸»å¨åç»ä¸ä½æºï¼0x0001æ¯ä¸ä½æºä¿®æ¹ä¸ä½æºRTC
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command += "00"; // å å¯æ¹å¼ï¼?0x00表示ä¸å å¯?
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Calendar c = Calendar.getInstance();
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// æ·»å æ¶é´ï¼å¹¶å°æ¶é´è½¬æ¢ä¸º16è¿å¶è¡¨ç¤º
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command += (String.format("%4s", HexUtil.intToHex(c.get(Calendar.YEAR))).replace(' ', '0'));
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command += (String.format("%2s", HexUtil.intToHex(c.get(Calendar.MONTH) + 1)).replace(' ', '0'));
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command += (String.format("%2s", HexUtil.intToHex(c.get(Calendar.DAY_OF_MONTH))).replace(' ', '0'));
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command += (String.format("%2s", HexUtil.intToHex(c.get(Calendar.HOUR_OF_DAY))).replace(' ', '0'));
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command += (String.format("%2s", HexUtil.intToHex(c.get(Calendar.MINUTE))).replace(' ', '0'));
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command += (String.format("%2s", HexUtil.intToHex(c.get(Calendar.SECOND))).replace(' ', '0'));
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command += ("00000001"); // å¯ä¸æ è¯ï¼ä½¿ç¨åºåå·
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command += (HexUtil.asciiToHex(message)); // æ·»å 主è¦ä¿¡æ¯å
容
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command += (HexUtil.asciiToHex("<EOF>")); // æ·»å ç»å°¾æ è¯
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System.out.println(command);
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System.out.println(String.format("%4s", "1"));
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Date time = new Date();
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System.out.println(new SimpleDateFormat("yyyy-MM-dd-hh-mm-ss").format(time));
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String timeHex = timeToHex(time);
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System.out.println(timeHex);
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System.out.println(hexToTime(timeHex));
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System.out.println("3c5354413e001a00000000000000000000000000010007e0021500152800000000000000005041001d017c017c01017c3c454f463e".length());
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System.out.println(hexToBinary("0c0a"));
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System.out.println(Integer.MAX_VALUE);
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}
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public static String hexTo2Binary(String hexString) {
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String binaryString = Integer.toBinaryString(hexToInt(hexString));
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return String.format("%8s", binaryString).replace(' ', '0');
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}
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}
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