/**
* 把16进制字符串转换成字节数组
*
* @param hex
* @return
*/
public static byte[] hexStringToByte(String hex) {
int len = (hex.length() / 2);
byte[] result = new byte[len];
char[] achar = hex.toCharArray();
for (int i = 0; i < len; i++) {
int pos = i * 2;
result[i] = (byte) (toByte(achar[pos]) << 4 | toByte(achar[pos + 1]));
}
return result;
}
private static byte toByte(char c) {
byte b = (byte) "0123456789ABCDEF".indexOf(c);
return b;
}
/**
* 把字节数组转换成16进制字符串
*
* @param bArray
* @return
*/
public static final String bytesToHexString(byte[] bArray) {
StringBuffer sb = new StringBuffer(bArray.length);
String sTemp;
for (int i = 0; i < bArray.length; i++) {
sTemp = Integer.toHexString(0xFF & bArray[i]);
if (sTemp.length() < 2)
sb.append(0);
sb.append(sTemp.toUpperCase());
}
return sb.toString();
}
/**
* 把字节数组转换为对象
*
* @param bytes
* @return
* @throws IOException
* @throws ClassNotFoundException
*/
public static final Object bytesToObject(byte[] bytes) throws IOException,
ClassNotFoundException {
ByteArrayInputStream in = new ByteArrayInputStream(bytes);
ObjectInputStream oi = new ObjectInputStream(in);
Object o = oi.readObject();
oi.close();
return o;
}
/**
* 把可序列化对象转换成字节数组
*
* @param s
* @return
* @throws IOException
*/
public static final byte[] objectToBytes(Serializable s) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
ObjectOutputStream ot = new ObjectOutputStream(out);
ot.writeObject(s);
ot.flush();
ot.close();
return out.toByteArray();
}
/**
* 把可序列化对象转换成字符串
*
* @param s
* @return
* @throws IOException
*/
public static final String objectToString(Serializable s) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
ObjectOutputStream ot = new ObjectOutputStream(out);
ot.writeObject(s);
ot.flush();
ot.close();
return new String(out.toByteArray());
}
public static final String objectToHexString(Serializable s)
throws IOException {
return bytesToHexString(objectToBytes(s));
}
public static final Object hexStringToObject(String hex)
throws IOException, ClassNotFoundException {
return bytesToObject(hexStringToByte(hex));
}