Signed-off-by: chenhaoxiang <[email protected]>

Author: chenhaoxiang

myListenerWeb/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="con" path="melibrary.com.genuitec.eclipse.j2eedt.core.MYECLIPSE_JAVAEE_6_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.web.container"/>
+	<classpathentry kind="con" path="org.eclipse.jst.j2ee.internal.module.container"/>
+	<classpathentry kind="output" path="WebRoot/WEB-INF/classes"/>
+</classpath>

myListenerWeb/.mymetadata

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+<?xml version="1.0" encoding="UTF-8"?>
+<project-module
+  type="WEB"
+  name="myListenerWeb"
+  id="myeclipse.1471595135635"
+  context-root="/myListenerWeb"
+  j2ee-spec="6.0"
+  archive="myListenerWeb.war">
+  <attributes>
+    <attribute name="webrootdir" value="WebRoot" />
+  </attributes>
+</project-module>
+

myListenerWeb/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>myListenerWeb</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.wst.common.project.facet.core.builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.wst.jsdt.core.javascriptValidator</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.genuitec.eclipse.j2eedt.core.WebClasspathBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.genuitec.eclipse.j2eedt.core.J2EEProjectValidator</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>com.genuitec.eclipse.j2eedt.core.DeploymentDescriptorValidator</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.wst.validation.validationbuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jem.workbench.JavaEMFNature</nature>
+		<nature>com.genuitec.eclipse.j2eedt.core.webnature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+		<nature>org.eclipse.wst.jsdt.core.jsNature</nature>
+		<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
+		<nature>org.eclipse.wst.common.modulecore.ModuleCoreNature</nature>
+	</natures>
+</projectDescription>

myListenerWeb/.settings/.jsdtscope

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="WebRoot"/>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.WebProject">
+		<attributes>
+			<attribute name="hide" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="con" path="org.eclipse.wst.jsdt.launching.baseBrowserLibrary"/>
+	<classpathentry kind="output" path=""/>
+</classpath>

myListenerWeb/.settings/org.eclipse.jdt.core.prefs

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+#Fri Aug 19 16:25:38 CST 2016
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
+org.eclipse.jdt.core.compiler.compliance=1.6
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.6

myListenerWeb/.settings/org.eclipse.wst.common.component

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+<?xml version="1.0" encoding="UTF-8"?>
+<project-modules id="moduleCoreId" project-version="1.5.0">
+    <wb-module deploy-name="myListenerWeb">
+        <wb-resource deploy-path="/" source-path="/WebRoot"/>
+        <wb-resource deploy-path="/WEB-INF/classes" source-path="/src"/>
+        <property name="context-root" value="/myListenerWeb"/>
+        <property name="java-output-path" value="/myListenerWeb/WebRoot/WEB-INF/classes"/>
+    </wb-module>
+</project-modules>

myListenerWeb/.settings/org.eclipse.wst.common.project.facet.core.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<faceted-project>
+  <fixed facet="wst.jsdt.web"/>
+  <installed facet="java" version="1.6"/>
+  <installed facet="jst.web" version="3.0"/>
+  <installed facet="wst.jsdt.web" version="1.0"/>
+</faceted-project>

myListenerWeb/.settings/org.eclipse.wst.jsdt.ui.superType.container

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+org.eclipse.wst.jsdt.launching.baseBrowserLibrary

myListenerWeb/.settings/org.eclipse.wst.jsdt.ui.superType.name

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+Window

myListenerWeb/README.md

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+监听器Listener解析与实例
+
+监听器－就是一个实现待定接口的普通Java程序，此程序专门用于监听另外一个类的方法调用。 
+这是使用观察者模式的。
+
+什么是观察者模式： 
+定义对象间一对多的依赖关系，当一个对象的状态发生改变时，所有依赖于它的对象都得到通知自动更新。 
+示例： 
+GUI编程中的addXxxxListener都是观察者模式。 
+比如为按钮点击添加监听事件，为键盘添加监听等等…

myListenerWeb/WebRoot/META-INF/MANIFEST.MF

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+Manifest-Version: 1.0
+Class-Path: 
+

myListenerWeb/WebRoot/WEB-INF/classes/cn/hncu/designPattern1/A.class

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+<?xml version="1.0" encoding="UTF-8"?>
+<web-app version="3.0" 
+	xmlns="http://java.sun.com/xml/ns/javaee" 
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
+	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
+	http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd">
+  <display-name></display-name>	
+  <welcome-file-list>
+    <welcome-file>index.jsp</welcome-file>
+  </welcome-file-list>
+</web-app>

myListenerWeb/WebRoot/WEB-INF/classes/cn/hncu/designPattern1/Demo$1.class

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+<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
+<%
+String path = request.getContextPath();
+String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
+%>
+
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
+<html>
+  <head>
+    <base href="<%=basePath%>">
+    
+    <title>My JSP 'index.jsp' starting page</title>
+	<meta http-equiv="pragma" content="no-cache">
+	<meta http-equiv="cache-control" content="no-cache">
+	<meta http-equiv="expires" content="0">    
+	<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
+	<meta http-equiv="description" content="This is my page">
+	<!--
+	<link rel="stylesheet" type="text/css" href="styles.css">
+	-->
+  </head>
+  
+  <body>
+    This is my JSP page. <br>
+  </body>
+</html>

myListenerWeb/WebRoot/WEB-INF/classes/cn/hncu/designPattern1/Demo.class

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+package cn.hncu.designPattern1;
+
+public class Demo {
+	
+	public static void main(String[] args) {
+		Person person = new Person("张三");
+		IPersonRunListener listener = new IPersonRunListener() {
+			@Override
+			public void fighting() {
+				//这里可以做很多事，不是只能输出哦
+				//不过由于还没写Event对象，所以拿不到是谁调用的
+				System.out.println("先做好准备工作...");
+			}
+		};
+		person.addBefore(listener);
+		
+		A a = new A();
+		
+		person.addAfter(a);
+		
+		person.run();
+	}
+}
+
+class A implements IPersonRunListener{
+	@Override
+	public void fighting() {
+		//这里可以做很多事，不是只能输出哦
+		//不过由于还没写Event对象，所以拿不到是谁调用的
+		System.out.println("跑完了，休息休息...");
+	} 
+}

myListenerWeb/WebRoot/WEB-INF/classes/cn/hncu/designPattern1/IPersonRunListener.class

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+package cn.hncu.designPattern1;
+
+public class Person {
+	private String name;
+	private IPersonRunListener listener1;
+	private IPersonRunListener listener2;
+	public Person(String name) {
+		super();
+		this.name = name;
+	}
+	
+	public void run(){
+		if(listener1!=null){
+			listener1.fighting();
+		}
+		System.out.println(name+"正在跑...");
+		if(listener2!=null){
+			listener2.fighting();
+		}
+	}
+	
+	public void addBefore(IPersonRunListener listener){
+		this.listener1=listener;
+	}
+	
+	public void addAfter(IPersonRunListener listener){
+		this.listener2=listener;
+	}
+	
+}
+
+interface IPersonRunListener{
+	public void fighting();
+}

myListenerWeb/WebRoot/WEB-INF/classes/cn/hncu/designPattern1/Person.class

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+package cn.hncu.designPattern2;
+
+public class Demo {
+	
+	public static void main(String[] args) {
+		Person p1 = new Person("张三");
+		Person p2 = new Person("Jack");
+		IPersonRunListener listener = new IPersonRunListener() {
+			@Override
+			public void fighting(PersonEvent pe) {
+				System.out.println(pe.getSource()+"已经跑完了...");
+				if(pe.getName().equals("张三")){
+					System.out.println(pe.getName()+"跑到了第一名...");
+				}
+			}
+		};
+		p1.addPersonListener(listener);
+		p2.addPersonListener(listener);
+		p1.run();
+		p2.run();
+		
+		
+		Person p3 = new Person("李四");
+		p3.addPersonListener(new DefaultCatListener());
+		p3.run();
+	}
+}
+

myListenerWeb/WebRoot/WEB-INF/classes/cn/hncu/designPattern2/DefaultCatListener.class

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+package cn.hncu.designPattern2;
+
+public class Person {
+	private String name;
+	private IPersonRunListener listener;
+	
+	
+	public Person(String name) {
+		super();
+		this.name = name;
+	}
+
+	public void run(){
+		System.out.println(name+"开始跑了..");
+		if(listener!=null){
+			listener.fighting(new PersonEvent(this));
+		}
+	}
+	
+	public void addPersonListener(IPersonRunListener listener){
+		this.listener=listener;
+	}
+	
+	public String getName(){
+		return name;
+	}
+
+	@Override
+	public String toString() {
+		return "Person [name=" + name + ", listener=" + listener + "]";
+	}
+	
+	
+	
+}
+
+interface IPersonRunListener {
+	public void fighting(PersonEvent pe);
+}
+
+class PersonEvent{
+	Person p = null;
+	public PersonEvent(Person p) {
+		this.p = p;
+	}
+	
+	public String getName(){
+		return p.getName();
+	}
+	
+	public Object getSource(){
+		return p;
+	}
+}
+
+//我们还可以写一个帮我们实现了接口的基本类
+//里面写我们通用的模板，如果我们继承这个类，我们就可以不写了。
+//有功能不一样的地方，我们就自己写，覆盖这个类的方法
+class DefaultCatListener implements IPersonRunListener {
+
+	@Override
+	public void fighting(PersonEvent pe) {
+		System.out.println("默认的动作...");
+	}
+}
+
+