在Java中生成DES密钥并通过套接字传递它

import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.ServerSocket;
import java.net.Socket;

KeyGenerator keyGenerator = KeyGenerator.getInstance("DES");
SecretKey secretKey = keyGenerator.generateKey();

ServerSocket serverSocket = new ServerSocket(8888);
Socket socket = serverSocket.accept();
ObjectOutputStream outputStream = new ObjectOutputStream(socket.getOutputStream());
outputStream.writeObject(secretKey);
outputStream.flush();

Socket socket = new Socket("服务器IP地址", 8888);
ObjectInputStream inputStream = new ObjectInputStream(socket.getInputStream());
SecretKey receivedKey = (SecretKey) inputStream.readObject();