Partie backend Java webSocketd

/**
 * @author weirdo_world
 */

@Controller
@Slf4j
@ServerEndpoint("/ws/task")
public class TaskSocketService {
    public static TaskMessageService taskMessageService;
    private static int count = 0;

    /**
     * 连接时执行
     */
    @OnOpen
    public void onOpen() {
        count++;
        log.info("建立websocket连接：已连接数{}", count);
    }

    /**
     * 关闭时执行
     */
    @OnClose
    public void onClose() {
        count--;
        log.info("WebSocket连接关闭,剩余连接：{}", count);
    }

    /**
     * 收到消息时执行
     */
    @OnMessage
    public String onMessage(String params) {
        int count = taskMessageService.getSocketMessageCount(params);
        return String.valueOf(count);
    }

    /**
     * 连接错误时执行
     */
    @OnError
    public void onError(Throwable error) {
        error.printStackTrace();
        log.error("WebSocket连接错误");
    }
}