public static byte[] Unicode2Byte(String s) {
int len = s.length();
byte abyte[] = new byte[len << 1];
int j = 0;
for (int i = 0; i < len; i++) {
char c = s.charAt(i);
abyte[j++] = (byte) (c >> 8);
abyte[j++] = (byte) (c & 0xff);
}
return abyte;
}