java - 对象输入流 : is this correct way to unblock

Question

ObjectInputStream 在创建时会阻塞，直到收到串行输入流并对其进行验证。我试图通过它使用套接字来制作我的第一个程序并发现了这个。我使用了一个虚拟对象，这样它就不会阻塞。代码在这里:

import java.io.*;                      
import java.net.*;                     
import java.util.*;                    

class Dummy implements Serializable {
}

class X_Int implements Serializable {
    int x;
}

class Server {
        public static void main(String args[]) throws Exception {
                ServerSocket ss = new ServerSocket(5879);
                Socket client = ss.accept();
                ObjectOutputStream out = new ObjectOutputStream(client.getOutputStream());
                out.writeObject(new Dummy());
                ObjectInputStream in = new ObjectInputStream(client.getInputStream());
                in.readObject();
                out.flush();
                out.writeObject(new Date());
                out.flush();
                out.close();
        }
}

class Client {
    public static void main(String args[]) throws Exception {
        Socket server = new Socket("localhost", 5879);
        ObjectOutputStream out = new ObjectOutputStream(server.getOutputStream());
        out.writeObject(new Dummy());
        ObjectInputStream in  = new ObjectInputStream(server.getInputStream());
        in.readObject();
        out.flush();
        Date d = (Date)in.readObject();
        System.out.println(d);
    }
}

这是正确的方法吗？请评论。

Answer 1

您只需在创建对象输入流之前刷新()输出即可。您不需要发送虚拟对象。