彻底剖析RMI底层源码 、手写轻量级RMI框架

https://blog.csdn.net/Z0157/article/details/82049975

User

public class User {
    private int age;

    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
}

UserClient

public class UserClient {

    public static void main(String[] args) throws IOException {
        User user = new UserStub();
        int age = user.getAge();
        System.out.println("age="+age);
    }
}

UserServer

public class UserServer extends User  {

    public static void main(String[] args) {
        UserServer userServer = new UserServer();

        userServer.setAge(18);
        UserSkeleton userSkeleton = new UserSkeleton(userServer);
        userSkeleton.start();

    }
}

UserSkeleton

public class UserSkeleton extends Thread{

    private UserServer userServer;

    public UserSkeleton(UserServer userServer){
        this.userServer = userServer;
    }
    public void run(){
        ServerSocket serverSocket =null;
        try {
             serverSocket = new ServerSocket(8888);
            Socket socket = serverSocket.accept();

            while (socket !=null){
                ObjectInputStream read = new ObjectInputStream(socket.getInputStream());
                String method = (String) read.readObject();
                System.out.println("server get data:"+method);
                if(method.equals("age")){
                    int age = userServer.getAge();
                    System.out.println("server set data:"+age);
                    ObjectOutputStream outputStream = new ObjectOutputStream(socket.getOutputStream());
                    outputStream.writeInt(age);
                    outputStream.flush();
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }finally {
            if (serverSocket !=null){
                try {
                    serverSocket.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

    }
}

UserStu

public class UserStub extends User {

    private Socket socket;

    public UserStub() throws IOException {
        socket = new Socket("localhost",8888);
    }

    public int getAge(){
        try {
            ObjectOutputStream outputStream = new ObjectOutputStream(socket.getOutputStream());
            outputStream.writeObject("age");
            System.out.println("client set data");
            outputStream.flush();
            ObjectInputStream objectInputStream = new ObjectInputStream(socket.getInputStream());
            System.out.println("client read data start");
            int age = objectInputStream.readInt();
            System.out.println("client read data:"+age);
            return  age;
        } catch (IOException e) {
            e.printStackTrace();
        }
        return 0;
    }
}