springboot集成websocket需要在配置文件中配置吗

是的，配置文件中需要配置WebSocket相关的属性和端点。例如，以下是一个简单的WebSocket配置示例：

spring:
  websocket:
    enabled: true
  servlet:
    contextPath: /myapp
  endpoints:
    websocket:
      path: /ws
      allowed-origins: "*"
      withSockJS: true

其中：

- `spring.websocket.enabled`：启用WebSocket支持。
- `spring.servlet.contextPath`：应用程序上下文路径。
- `spring.websocket.endpoints.websocket.path`：WebSocket端点路径。
- `spring.websocket.endpoints.websocket.allowed-origins`：允许的跨域请求的来源。
- `spring.websocket.endpoints.websocket.withSockJS`：是否启用SockJS支持。

除了配置文件之外，还需要编写WebSocket处理程序和消息处理器。例如，可以创建一个简单的处理程序来处理连接和断开连接的事件：

@Component
public class MyWebSocketHandler extends TextWebSocketHandler {

    private static final Logger logger = LoggerFactory.getLogger(MyWebSocketHandler.class);

    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        logger.info("WebSocket connection established: {}", session.getId());
    }

    @Override
    public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
        logger.info("WebSocket connection closed: {} ({})", session.getId(), status.getReason());
    }

}

然后，可以编写一个消息处理器来处理接收到的消息：

@Component
public class MyMessageHandler {

    private static final Logger logger = LoggerFactory.getLogger(MyMessageHandler.class);

    @MessageMapping("/hello")
    public void handleHelloMessage(String message) {
        logger.info("Received message: {}", message);
    }

}

最后，将处理程序和消息处理器注册到WebSocket配置中：

@Configuration
@EnableWebSocket
public class WebSocketConfig implements WebSocketConfigurer {

    private final MyWebSocketHandler myWebSocketHandler;
    private final MyMessageHandler myMessageHandler;

    public WebSocketConfig(MyWebSocketHandler myWebSocketHandler, MyMessageHandler myMessageHandler) {
        this.myWebSocketHandler = myWebSocketHandler;
        this.myMessageHandler = myMessageHandler;
    }

    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
        registry.addHandler(myWebSocketHandler, "/ws")
                .setAllowedOrigins("*")
                .withSockJS();
    }

    @MessageMapping("/hello")
    public void handleHelloMessage(String message) {
        myMessageHandler.handleHelloMessage(message);
    }

}

在这个例子中，`MyWebSocketHandler`和`MyMessageHandler`被注入到`WebSocketConfig`中，并在`registerWebSocketHandlers()`方法中注册。`handleHelloMessage()`方法被注解为`@MessageMapping("/hello")`，以处理来自客户端的`/hello`消息。