使用java中的套接字进行对象转移

Question

if(server&&network){ 
    try{ 
     serverSocket = new ServerSocket(12345); 
     socket = serverSocket.accept(); 
     System.out.println("Connected to " + socket.getInetAddress().getHostName()); 
     out = new ObjectOutputStream(socket.getOutputStream()); 
     in = new ObjectInputStream(socket.getInputStream()); 
     out.writeObject(lou); 
     out.flush(); 
     out.reset(); 
     out.writeObject(dud); 
     out.flush(); 
     out.reset(); 
     me = new Gen(lou, dud); 
     //socket.close(); 
     //serverSocket.close(); 
    }catch(IOException ioException){ 
     ioException.printStackTrace(); 
    } 
    }else if(network&&!server){ 
     try{ 
      //Socket socket = new Socket("10.69.18.244", 12345); 
      socket = new Socket("192.168.1.100", 12345); 
      //Socket socket = new Socket("10.69.18.162", 12345); 
      out = new ObjectOutputStream(socket.getOutputStream()); 
      in = new ObjectInputStream(socket.getInputStream()); 
      lou = (ArrayList)in.readObject(); 
      //in.reset(); 
      dud = (ArrayList)in.readObject(); 
      //in.reset(); 
      me = new Gen(dud, lou); 
      //socket.close(); 
     }catch(Exception ioException){ 
      ioException.printStackTrace(); 
     } 
    } 

当我尝试在服务器上使用out.writeobject(lou)时，出现NullPointerException。客户端抛出一个NotSerializableException。我不知道为什么，因为我正在初始化它。

Answer 1

你想打开一个连接并保持整个游戏的开放。