现�����的方法��为抽象方法� 抽象方法������abstract��� ��抽象方法的类����为抽象类�����abstract��� CODE ± 抽象类示例 1 public abstract class Animal { //定义为抽象类 2 private int age; 4 public void setAge(int age) { 5 this.age = age; 6 } 8 return age; 10 } 12 public abstract void eat(); //抽象方法 13 } 4 29 ����类 CODE ± 抽象类继承 1 public class Person extends Animal { 2 private String name; 3 public void setName(String name) { 4 this.name } 9 public void eat() { //重写方法 10 System.out.println("��→��→���→��→���"); 11 } 12 } 1 public class Bird extends Animal { 2 public void fly(){ 3 System.out.println("我���!"); 4 } 5 public void eat(){

个 时候就必须用到反射——运行时动态加载需要加载的对象。 一个例子 Struts2 框架开发中会在 struts.xml 里配置 Action 1 class="ouc.j2ee.action.LoginAction" method="execute"> 2 index.jsp 3 class 属性创建 LoginAction 的实例，并用 invoke 方法来调用 execute 方法。 这个过程是基于 Java 反射框架完成的。 大纲 反射 类的加载、连接和初始化 类加载器 使用反射生成并操作对象 本节习题 反射的主要用途„ O 依赖注入 有两个组件 A 和 B，A 依赖于 B。 1 public class A { 2 public setB() 方法： 1 public class A { 2 private B b; 3 public void importantMethod() { 4 b.usefulMethod(); 5 ... 6 } 8 public void setB(B b) { 9 this.b = b; 10 } 11 } 1 class="ouc.j2ee.sample

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48

Ant Starters 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 48. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 49

Starter POMs 14. Structuring your code Using the “default” package Locating the main application class 15. Configuration classes Importing additional configuration classes Importing XML configuration Understanding auto-configured beans Locating auto-configuration candidates Condition annotations Class conditions Bean conditions Property conditions Resource conditions Web application conditions SpEL HTTP health endpoint access restrictions 47. Monitoring and management over JMX Customizing MBean names Disabling JMX endpoints Using Jolokia for JMX over HTTP Customizing Jolokia Disabling Jolokia 48

33 Spring Boot Reference Guide 1.4.0.M2 Spring Boot iii 14.2. Locating the main application class ................................................................... 33 15. Configuration classes annotations ..................................................................................... 137 Class conditions ...................................................................................... ................................................................... 155 47.1. Customizing MBean names ............................................................................. 155 47.2. Disabling