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                [java靜態代理與動態代理簡單分析](https://www.cnblogs.com/V1haoge/p/5860749.html) 使用設計模式的好處:最小限度的修改代碼,實現復雜的功能,高度解耦 靜態代理的弊端: 一個代理接口只能服務于一種類型的對象.對于稍大點的項目根本無法勝任. ~~~ //房產接口。。。 public interface FangChan { //房產信息方法。 void FangChanXinXi(); } ~~~ ~~~ public class BeiJingFangChan implements FangChan{ @Override public void FangChanXinXi() { // TODO Auto-generated method stub System.out.println("北京2環海景房。。。"); } } ~~~ ~~~ public class ShangHaiFangChan implements FangChan{ @Override public void FangChanXinXi() { // TODO Auto-generated method stub System.out.println("上海市中心別墅。。。"); } } ~~~ ~~~ public class LianJia implements FangChan{ private FangChan fc; public LianJia(FangChan fc){ this.fc=fc; } @Override public void FangChanXinXi() { // TODO Auto-generated method stub //代理類代理正常方法的同時 還可以在方法的前后加入其它方法。 fc.FangChanXinXi(); System.out.println("辦理各種手續。。。"); System.out.println("代理成功收取代理費:1000萬"); } } ~~~ ~~~ //賣家 。。。 public class MaiJia { public static void main(String[] args) { // TODO Auto-generated method stub //首先找到中介。。。告訴鏈家你要出售哪里的房子? LianJia lianjia=new LianJia(new BeiJingFangChan()); //然后調用代理類的實現方法,此時則會執行被代理類的方法。以及代理類,自身加入的功能。 lianjia.FangChanXinXi(); } } ~~~
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