用java将对象从客户机发送到服务器

zkure5ic 于 2021-07-11 发布在 Java

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如何在java中向服务器发送对象？
客户：

Help h = new Help("Mattia Cammalleri","Informatica","18 Novembre 2020");

    Socket s = new Socket("localhost", 8888);
    ObjectOutputStream os = new ObjectOutputStream(s.getOutputStream()); 
    ObjectInputStream is = new ObjectInputStream(s.getInputStream());
    os.writeObject(h);
    os.flush();

服务器：

ServerSocket ss = new ServerSocket(8888);
    Socket s = ss.accept(); 
    ObjectOutputStream os = new ObjectOutputStream(s.getOutputStream()); 
    ObjectInputStream is = new ObjectInputStream(s.getInputStream());
    Help h = (Help) is.readObject();
    System.out.println("Richiesta " + h);

对象（实现可序列化）：

public String alunno;
public String materia;
public String data;

为什么不起作用？

Java server Client

来源：https://stackoverflow.com/questions/64893698/send-an-object-from-a-client-to-a-server-in-java

1条答案

按热度按时间

egdjgwm81#

我是这样解决的：
客户：

Help h = new Help("Mattia Cammalleri","Informatica","18 Novembre 2020");
    Socket socket = new Socket("localhost", 7777);
    System.out.println("Connected");
    OutputStream outputStream = socket.getOutputStream();
    ObjectOutputStream objectOutputStream = new ObjectOutputStream(outputStream);
    System.out.println("The object has been sent");
    objectOutputStream.writeObject(h);
    socket.close();

服务器：

ServerSocket ss = new ServerSocket(7777);
    System.out.println("Waiting for the client");
    Socket socket = ss.accept();
    System.out.println("Connected from " + socket + "!");
    InputStream inputStream = socket.getInputStream();
    ObjectInputStream objectInputStream = new ObjectInputStream(inputStream);
    Help h = (Help) objectInputStream.readObject();
    System.out.println("Object: " + h);
    ss.close();
    socket.close();

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用java将对象从客户机发送到服务器

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