WebSocket 详解--spring boot简单使用案例

import org.springframework.web.socket.WebSocketSession;
import org.springframework.web.socket.TextMessage;
import org.springframework.web.socket.handler.TextWebSocketHandler;
 
public class MyWebSocketHandler extends TextWebSocketHandler {
 
    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        System.out.println("Connected ... " + session.getId());
    }
 
    @Override
    protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
        System.out.println("Received message: " + message.getPayload());
        session.sendMessage(new TextMessage("Response message"));
    }
 
    @Override
    public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception {
        System.out.println("Transport error " + session.getId() + ":" + exception.getMessage());
    }
 
    @Override
    public void afterConnectionClosed(WebSocketSession session, CloseStatus closeStatus) throws Exception {
        System.out.println("Connection closed " + session.getId());
    }
}

这段代码定义了一个WebSocket处理器MyWebSocketHandler，它继承自TextWebSocketHandler。在连接建立、接收消息、处理传输错误以及连接关闭时，它提供了相应的处理逻辑。这个例子展示了如何在Spring Boot应用中使用WebSocket，并简单处理文本消息。