java十六進位制字串和字串互轉（支援中文）
阿新 • • 發佈：2018-12-31
*字串轉16進位制
/**
*
字串轉換成為16進位制(無需Unicode編碼)
*
@param str
*
@return
*/
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();
}
*16進位制轉為字串/**
*
16進位制直接轉換成為字串(無需Unicode解碼)
*
@param hexStr
*
@return
*/
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);
}