notifying // those that are interested in this event for (int i = listeners.length-2; i>=0; i-=2) { if (listeners[i]==FooListener.class) { // Lazily create the event: if (fooEvent == null) fooEvent = new FooEven
slf4j.LoggerFactory; import java.util.TooManyListenersException; /** * 串口监听器 * * @author Yeats */ public class MySerialPortEventListener implements SerialPortEventListener { private String latestData = ""; private SerialPort serialPort; private int eventType; private static final Logger ...
EventListenerList listenerList = new EventListenerList(); FooEvent fooEvent = null; public void addFooListener(FooListener l) { listenerList.add(FooListener.class, l); } public void removeFooListener(FooListener l) { listenerList.remove(FooListener.class, l); } // Notify all listeners that...
= null) { return retriever.getApplicationListeners(); } // 这里面~~~ 有个缓存安全的特殊处理,其最为核心的方法,其实还是retrieveApplicationListeners // 若是缓存安全的,才会缓存它 否则直接return即可~~~ // 什么叫缓存安全isCacheSafe:原理很简单,就是判断该类型是否在指定class...
eventListeners.add(listener); }// 调用所有的合适的监听器publicvoidnotifyListeners(intoldStatus,intnewStatus){ eventListeners.forEach(l -> {if(oldStatus == newStatus) {// doSamething}else{// doSamething} }); } }// 测试方法publicstaticvoidmain(String[] args){MySourcemySource=newMySource();...
@GetMapping("/open") public String openSerialPort(@RequestParam() String port) throws NoSuchPortException, PortInUseException, UnsupportedCommOperationException, TooManyListenersException { port = "COM" + port; log.debug(port); SerialPort serialPort = remoteService.openSerialPortTest(port); return ...
notifying // those that are interested in this event for (int i = listeners.length-2; i>=0; i-=2) { if (listeners[i]==FooListener.class) { // Lazily create the event: if (fooEvent == null) fooEvent = new FooEvent(this); ((FooListener)listeners[i+1]).fooXXX(fooEvent); }...
代码语言:java AI代码解释 // 日志处理事件监听器@ComponentpublicclassLoginEventPrintLogListener{@EventListenerpublicvoidhandleUserLoginEvent(LogonEventevent){Stringusername=event.getUserName();// 在这里执行处理用户登录事件的逻辑,例如记录日志或触发其他操作System.out.println("User logged in: "+username);}...
interfaces. In that way, the service provider might be able to optimize the resources used for the registration by collecting data about both types of change with one request to the server. It can also reduce the number of listeners the provider must manage as well as your application's ...
getApplicationListeners中会根据事件监听器对象和事件类型在多播器的监听器对象中查找满足条件的事件监听器对象,并进行缓存。 invokeListener 先判断是否有设置错误处理程序,如果有则需要用错误处理程序来处理事件监听器中发生的异常。代码如下: protected void invokeListener(ApplicationListener<?> listener, ApplicationEvent...