java邀请实时通知的案例

下面是一个基于Java-WebSocket库实现的简单的邀请实时通知的案例：

服务端代码：

import java.net.InetSocketAddress;
import org.java_websocket.WebSocket;
import org.java_websocket.handshake.ClientHandshake;
import org.java_websocket.server.WebSocketServer;

public class InviteNotificationServer extends WebSocketServer {
    public InviteNotificationServer(int port) {
        super(new InetSocketAddress(port));
    }

    @Override
    public void onOpen(WebSocket conn, ClientHandshake handshake) {
        System.out.println("New connection from " + conn.getRemoteSocketAddress());
    }

    @Override
    public void onClose(WebSocket conn, int code, String reason, boolean remote) {
        System.out.println("Connection closed to " + conn.getRemoteSocketAddress()
                + " with exit code " + code + " because of " + reason);
    }

    @Override
    public void onMessage(WebSocket conn, String message) {
        System.out.println("Received message from " + conn.getRemoteSocketAddress() + ": " + message);
    }

    @Override
    public void onError(WebSocket conn, Exception ex) {
        System.out.println("Error occurred on connection to " + conn.getRemoteSocketAddress() + ": " + ex);
    }

    public static void main(String[] args) {
        int port = 8080;
        InviteNotificationServer server = new InviteNotificationServer(port);
        server.start();
        System.out.println("Invite notification server started on port " + server.getPort());
    }
}

客户端代码：

import java.net.URI;
import java.net.URISyntaxException;
import java.util.Scanner;
import org.java_websocket.client.WebSocketClient;
import org.java_websocket.handshake.ServerHandshake;

public class InviteNotificationClient extends WebSocketClient {
    public InviteNotificationClient(URI serverUri) {
        super(serverUri);
    }

    @Override
    public void onOpen(ServerHandshake handshake) {
        System.out.println("Connected to " + getURI());
    }

    @Override
    public void onMessage(String message) {
        System.out.println("Received message: " + message);
    }

    @Override
    public void onClose(int code, String reason, boolean remote) {
        System.out.println("Connection closed with exit code " + code + " because of " + reason);
    }

    @Override
    public void onError(Exception ex) {
        System.out.println("Error occurred on connection to " + getURI() + ": " + ex);
    }

    public static void main(String[] args) throws URISyntaxException {
        String serverUri = "ws://localhost:8080";
        InviteNotificationClient client = new InviteNotificationClient(new URI(serverUri));
        client.connect();
        System.out.println("Connected to invite notification server at " + serverUri);

        Scanner scanner = new Scanner(System.in);
        while (true) {
            System.out.print("Enter invitation message (or 'exit' to quit): ");
            String message = scanner.nextLine();
            if (message.equals("exit")) {
                client.close();
                break;
            }
            client.send(message);
        }
    }
}

这个案例创建了一个WebSocket服务器，监听8080端口。当有新的WebSocket客户端连接时，服务器会打印出连接信息。当接收到客户端发送的消息时，服务器会打印出消息内容。

客户端连接到WebSocket服务器后，会不断等待用户输入邀请消息。当用户输入消息后，客户端会将消息发送到服务器。同时，客户端会不断接收服务器推送的消息，并打印出消息内容。

您可以根据您的需求修改此代码，实现更复杂的邀请实时通知功能。