[JSP] importare classe java

[torcito]

Salve ,premetto che sono un neofita,vorrei sapere come importare il seguente codice in java in jsp.


java code :

import java.io.*;
import javax.crypto.*;
import javax.crypto.spec.*;

class Encrypt {

public static void main(String[] args) {

if (args.length != 2) {
System.out.println(
"Usage: Encrypt nameOfKeyFile nameOfFileToEncrypt"
);
}

else try {

// Get secret Key from file

FileInputStream keyfis = new FileInputStream( args[0] );
byte[] encKey = new byte[keyfis.available()];
keyfis.read(encKey);
keyfis.close();


SecretKey key = new SecretKeySpec(encKey, "DES");

// Create encrypter/decrypter class
DesEncrypter encrypter = new DesEncrypter(key);

// Encrypt
encrypter.encrypt(new FileInputStream( args[1] ),
new FileOutputStream( "encrypt.out" ));

// Decrypt
// encrypter.decrypt(new FileInputStream( args[1] ),
// new FileOutputStream( "decrypt.out" ));
} catch (Exception e) {
}
}
}


grazie in anticipo.