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iGoodCode
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study
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study-java
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bage
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java
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pattern
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proxy
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MyProxy.java
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package com.bage.study.java.pattern.proxy;
import java.lang.reflect.Proxy;
/**
* 参考链接:https://www.cnblogs.com/qifengshi/p/6566752.html<br>
* https://www.cnblogs.com/oumyye/p/4374671.html<br>
* https://blog.csdn.net/lovejj1994/article/details/78080124
* 组成:抽象角色:通过接口或抽象类声明真实角色实现的业务方法。
* 代理角色:实现抽象角色,是真实角色的代理,通过真实角色的业务逻辑方法来实现抽象方法,并可以附加自己的操作。
* 真实角色:实现抽象角色,定义真实角色所要实现的业务逻辑,供代理角色调用。
* 代理模式的定义:为其他对象提供一种代理以控制对这个对象的访问。在某些情况下,一个对象不适合或者不能直接引用另一个对象,而代理对象可以在客户端和目标对象之间起到中介的作用。
*
* @author bage
*
*/
public class MyProxy {
public static void main(String[] args) {
System.out.println("--------- 静态代理 ------------");
// 静态代理
ProxySubject staticProxy = new ProxySubject(new RealSubject());
staticProxy.doSomething();
System.out.println("--------- 动态代理 ------------");
// 1、动态代理
Subject realSubject = new RealSubject(); // 创建待代理的实现类
// 2、Proxy.newProxyInstance
Subject subject = (Subject) Proxy.newProxyInstance(
realSubject.getClass().getClassLoader(), // 类加载器
new Class[]{Subject.class}, // 代理接口类数组
new DynamicProxy(realSubject)); // InvocationHandler 的实现
// 调用代理对象的方法
subject.doSomething();
}
}
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