16进制文件转换

最新推荐文章于 2024-01-03 21:29:30 发布

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public static void main(String[] args) {
  String str = "大法师123";
  System.out.println(msgHex(str));
  String hex = "59276CD55E08003100320033";
  System.out.println(msg2Hex(hex));
}

/**
* 将汉字转换成16进制
* @param str
* @return
*/
public static String msgHex(String str) {
  try {
   String msg = new String(str.getBytes("unicode"), "unicode"); // 字符串转换成unicode
   String hex = "";
   for (int i = 0; i < msg.length(); i++) {
    char c = msg.charAt(i);// 找出索引的值
    int ch = (int) c;
    String chs = Integer.toHexString(ch);// 16进制换算
    chs = "000" + chs;
    hex = hex + chs.substring(chs.length() - 4);
   }
   return hex.toUpperCase();
  } catch (UnsupportedEncodingException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }
  return "";
}

/**
* 将16进制转换成汉字
* @param str
* @return
*/
public static String msg2Hex(String hex) {
  int len = hex.length() / 4;     //每4位截取16进制编码
  if (hex.length() % 4 != 0)
   return "";
  char[] msg = new char[len];
  for (int i = 0; i < len; i++) {
   String str = hex.substring(4 * i, 4 * i + 4);
   int code = Integer.parseInt(str, 16);
   msg[i] = (char) code;
  }
  String msgs = new String(msg);
  return msgs;
}