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if((hexString.length())%2!=0) newStr="0"+hexString; else newStr=hexString; newStr = newStr.toUpperCase(); int length = newStr.length() / 2; char[] hexChars = newStr.toCharArray(); byte[] d = new byte[length]; for (int i = 0; i < length; i++) { int pos = i * 2; d[i] = (byte) (charToByte(hexChars[pos]) << 4 | charToByte(hexChars[pos + 1])); } return d; }
/**************************** Convert char to byte***********************/ public static byte charToByte(char c) { return (byte) "0123456789ABCDEF".indexOf(c); }
/**************************** byte[] to int***********************/ public static int bytesToInt(byte[] bs) { String dataLenStr=CommonMethods.bytesToHexString(bs); int commLen=Integer.parseInt(dataLenStr,16);
public static String getNowTime() { Date dt=new Date(); SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss"); String nowTime=""; nowTime= df.format(dt); return nowTime; }
/****************** byte stream to HexString**********************/ public static String bytesToHexString(byte[] bArray) { StringBuffer sb = new StringBuffer(bArray.length); String sTemp; for (int i = 0; i < bArray.length; i++) { sTemp = Integer.toHexString((int)(0xFF & bArray[i])); if (sTemp.length() < 2) sb.append(0); sb.append(sTemp.toUpperCase()); } return sb.toString(); }
return commLen; }
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