public interfaceComponentListenerextendsEventListener 用于接收组件事件的侦听器接口。对处理组件事件感兴趣的类要么实现此接口(以及它包含的所有方法),要么扩展抽象ComponentAdapter类(仅覆盖感兴趣的方法)。然后,使用组件的addComponentListener方法向该组件注册从该类创建的侦听器对象。当组件的大小,位置或可见性发生更改时...
(overriding only the methods of interest). The listener object created from that class is then registered with a component using the component'saddComponentListenermethod. When the component's size, location, or visibility changes, the relevant method in the listener object is invoked, and the...
AWTEventMulticaster implements efficient and thread-safe multi-cast event dispatching for the AWT events defined in the java.awt.event package. protected class Component.AccessibleAWTComponent.AccessibleAWTComponentHandler Fire PropertyChange listener, if one is registered, when shown/hidden.. Fields in...
import java.awt.*; import java.awt.event.*; import java.io.Serializable; class MyApp java.io.Serializable { BigObjectThatShouldNotBeSerializedWithAButton bigOne; Button aButton = new Button(); static class MyActionListener implements ActionListener { public void actionPerformed(ActionEvent e) { Sy...
需要注意的一种情形是：import java.awt.*;import java.awt.event.*;import java.io.Serializable;class MyApp implements ActionListener, Serializable{BigObjectThatShouldNotBeSerializedWithAButton bigOne;Button aButton = new Button();MyApp(){// Oops, now aButton has a listener with a ...
一、SpringBoot中使用Servlet在SpringBootApplication上使用@ServletComponentScan注解后,Servlet、Filter、Listener可以直接通过@WebServlet、@WebFilter、@WebListener注解自动注册,无需其他代码。1.在入口Application类上加入注解@ServletComponentScanpackage springboot spring java java代码 xml配置 Spring的ComponentScan注解 ...
org.springframework.context.event.internalEventListenerFactory excludeFilters:Filter[]数组类型,自定义组件扫描过滤规则,excludeFilters表示排除使用对应的规则,符合过滤规则的类的Bean定义信息不会被注册到IOC容器中。 lazyInit:boolean类型,从Spring4.1版本开始提供,表示Spring扫描组件时是否采用懒加载 ,默认false,表示不开启...
在SpringBootApplication上使用@ServletComponentScan注解后,Servlet、Filter、Listener可以直接通过@WebServlet、@WebFilter、@WebListener注解自动注册,无需其他代码。 1.在入口Application类上加入注解@ServletComponentScan packagecom.hui;importorg.springframework.boot.SpringApplication;importorg.springframework.boot.autoconf...
从类java.awt.Component 继承的方法 action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage...
这是@ComponentScan的官方介绍,大致意思就是扫描注册bean的一个注解,会扫描对应路径下被@Component标注的类,和xml方式的<context:component-scan>作用相似,常用的方式是basePackages方式。 @ComponentScan会根据配置扫描路径下被@Component或者被其标注了的注解标注的类,比如@Controller、@Service、@Repository和@Configuration...