package com.nbad.register; import java.util.Calendar; public class Test { static String head = "3A30313033"; static String footer = "00000D0A"; public static void main(String[] args) { int beginCount = 10; Calendar c = Calendar.getInstance(); int hh = c.get(Calendar.HOUR_OF_DAY); int mm = c.get(Calendar.MINUTE); int mms = hh * 60 + mm; int endCount = mms / 5; int beginStep = 10 * 5; int endStep = endCount * 5; String s = intiMiddle(beginStep, 798); System.out.println("完整的指令地址:--------------"); System.out.println(s); String s1 = hexStr2Str(s); System.out.println(s1); System.out.println(str2HexStr(s1)); System.out.println("--------------------------------------"); String s_result="3A30313033313233343132333431323334333033303330333000000D0A"; System.out.println(hexStr2Str(s_result)); System.out.println(hexStr2Str(head)); } public static String intiMiddle(int beginStep, int endStep) { System.out.println("十进制的起始地址:" + beginStep); System.out.println("个数" + endStep); String begin = Integer.toHexString(beginStep); String end = Integer.toHexString(endStep); String begin_fix = pad(begin, 4, true); String end_fix = pad(end, 4, true); System.out.println("十六进制起始地址:" + begin_fix); System.out.println("十六进制个数:" + end_fix); char[] begins = begin_fix.toCharArray(); char[] ends = end_fix.toCharArray(); String begins_s = char2Ascii(begins); String ends_s = char2Ascii(ends); System.out.println("ascii起始地址:" + begins_s); System.out.println("ascii个数:" + ends_s); return head + begins_s + ends_s + footer; } private static String char2Ascii(char[] array) { StringBuffer sb = new StringBuffer(); for (int i = 0; i < array.length; i++) { String s = Integer.toHexString(array[i]); sb.append(pad(s, 2, true)); } return sb.toString(); } public static String pad(String str, int size, boolean isprefixed) { if (str == null) str = ""; int str_size = str.length(); int pad_len = size - str_size; StringBuffer retvalue = new StringBuffer(); for (int i = 0; i < pad_len; i++) { retvalue.append("0"); } if (isprefixed) return retvalue.append(str).toString(); return retvalue.insert(0, str).toString(); } /** * 字符串转换成十六进制字符串 * * @param String * str 待转换的ASCII字符串 * @return String 每个Byte之间空格分隔,如: [61 6C 6B] */ 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(); } /** * 十六进制转换字符串 * * @param String * str Byte字符串(Byte之间无分隔符 如:[616C6B]) * @return String 对应的字符串 */ public static String hexStr2Str(String hexStr) { String str = "0123456789ABCDEF"; char[] hexs = hexStr.toCharArray(); byte[] bytes = new byte[hexStr.length() / 2]; int n; for (int i = 0; i < bytes.length; i++) { n = str.indexOf(hexs[2 * i]) * 16; n += str.indexOf(hexs[2 * i + 1]); bytes[i] = (byte) (n & 0xff); } return new String(bytes); } /** * bytes转换成十六进制字符串 * * @param byte[] * b byte数组 * @return String 每个Byte值之间空格分隔 */ public static String byte2HexStr(byte[] b) { String stmp = ""; StringBuilder sb = new StringBuilder(""); for (int n = 0; n < b.length; n++) { stmp = Integer.toHexString(b[n] & 0xFF); sb.append((stmp.length() == 1) ? "0" + stmp : stmp); sb.append(" "); } return sb.toString().toUpperCase().trim(); } /** * bytes字符串转换为Byte值 * * @param String * src Byte字符串,每个Byte之间没有分隔符 * @return byte[] */ public static byte[] hexStr2Bytes(String src) { int m = 0, n = 0; int l = src.length() / 2; System.out.println(l); byte[] ret = new byte[l]; for (int i = 0; i < l; i++) { m = i * 2 + 1; n = m + 1; ret[i] = Byte.decode("0x" + src.substring(i * 2, m) + src.substring(m, n)); } return ret; } /** * String的字符串转换成unicode的String * * @param String * strText 全角字符串 * @return String 每个unicode之间无分隔符 * @throws Exception */ public static String strToUnicode(String strText) throws Exception { char c; StringBuilder str = new StringBuilder(); int intAsc; String strHex; for (int i = 0; i < strText.length(); i++) { c = strText.charAt(i); intAsc = (int) c; strHex = Integer.toHexString(intAsc); if (intAsc > 128) str.append("\u" + strHex); else // 低位在前面补00 str.append("\u00" + strHex); } return str.toString(); } /** * unicode的String转换成String的字符串 * * @param String * hex 16进制值字符串 (一个unicode为2byte) * @return String 全角字符串 */ public static String unicodeToString(String hex) { int t = hex.length() / 6; StringBuilder str = new StringBuilder(); for (int i = 0; i < t; i++) { String s = hex.substring(i * 6, (i + 1) * 6); // 高位需要补上00再转 String s1 = s.substring(2, 4) + "00"; // 低位直接转 String s2 = s.substring(4); // 将16进制的string转为int int n = Integer.valueOf(s1, 16) + Integer.valueOf(s2, 16); // 将int转换为字符 char[] chars = Character.toChars(n); str.append(new String(chars)); } return str.toString(); } }