代理模式,適配器模式,遠(yuǎn)程方法調(diào)用案例實驗報告

1、代理模式,適配器模式,遠(yuǎn)程方法調(diào)用案例實驗報告 軟件設(shè)計與體系結(jié)構(gòu) 實 實 驗 報 告 課程名稱 軟件設(shè)計與體系結(jié)構(gòu) 課程編號 0920216 實驗項目名稱 代理模式，適配器模式，遠(yuǎn)程方法調(diào)用案例 學(xué)號 班級 姓名 專業(yè) 學(xué)生所在學(xué)院 指導(dǎo)教師 實驗室名稱地點 實驗時間 實驗名稱： 代理模式，適配器模式，遠(yuǎn)程方法調(diào)用案例 實驗?zāi)康模捍砟Ｊ剑m配器模式，遠(yuǎn)程方法調(diào)用案例(observer pattern)是設(shè)計模式中行為模式的一種，它解決了上述具有一對多依賴關(guān)系的對象的重用問題。此模式的參與者分為兩大類，一類是被觀察的目標(biāo)，另一類是觀察該目標(biāo)的觀察者們。正因為該模式是基于"一對多&#

2、39;的關(guān)系，所以該模式一般是應(yīng)用于由一個目標(biāo)對象和 n 個觀察者對象組成（當(dāng)然也可以擴(kuò)展為有多個目標(biāo)對象，但我們現(xiàn)在只討論前者）的場合。當(dāng)目標(biāo)對象的狀態(tài)發(fā)生改變或做出某種行為時，正在觀察該目標(biāo)對象的觀察者們將自動地、連鎖地作出相應(yīng)的響應(yīng)行為。 通過本次實驗了解觀察者模式的原理。并能夠運(yùn)用觀察者模式來進(jìn)行編程。 實驗內(nèi)容 1 uml類圖 代理模式-追女友實例： 適配器模式-清潔系統(tǒng)： 遠(yuǎn)程方法調(diào)用： 2 程序的源代碼 代理模式-追女友實例： package gift; public interface givegift public void givedolls(); public void

3、giveflowers(); public void givechocolate(); package gift; public class proxy implements givegift pursuit gg; public proxy(pursuit g,schoolgirl mm) super(); g.setmm(mm); this.gg = g; override public void givedolls() / todo auto-generated method stub gg.givedolls(); override public void giveflowers()

4、/ todo auto-generated method stub gg.giveflowers(); override public void givechocolate() / todo auto-generated method stub gg.givechocolate(); package gift; public class pursuit implements givegift private schoolgirl mm; private string name; public pursuit(schoolgirl mm, string name) super(); this.m

5、m = mm; = name; public schoolgirl getmm() return mm; public void setmm(schoolgirl mm) this.mm = mm; override public void givedolls() / todo auto-generated method stub system.out.println(mm.getname() + + 這個洋娃娃是給你的，你親愛的 + + name); override public void giveflowers() / todo auto-generated meth

6、od stub system.out.println(mm.getname() + + 這束鮮花是給你的，你親愛的 + + name); override public void givechocolate() / todo auto-generated method stub system.out.println(mm.getname() + + 這塊巧克力是給你的，你親愛的 + + name); package gift; public class schoolgirl private string name; public schoolgirl(string name) super();

7、 = name; public string getname() return name; public void setname(string name) = name; package gift; public class test /* * param args */ public static void main(string args) / todo auto-generated method stub schoolgirl ss = new schoolgirl(小籠包); pursuit p = new pursuit(ss, 過兒); p

8、roxy pxy = new proxy(p, ss); pxy.givechocolate(); pxy.givedolls(); pxy.giveflowers(); 適配器模式-清潔系統(tǒng)： public interface clean public void makeclean(); public class office implements clean public void makeclean() system.out.println(清潔辦公室); public class workshop implements clean public void makeclean() sys

9、tem.out.println(清潔工作室); public interface extra extends clean public void takecare(); class facility implements extra public void takecare() system.out.println(養(yǎng)護(hù)照料); public void makeclean () system.out.println(清潔設(shè)備); public class client static void jobs(clean job) if(job instanceof clean) (clean)job

10、).makeclean(); if(job instanceof extra) (extra)job).takecare(); public static void main(string args) extra e = new facility(); jobs(e); clean c1 = new office(); clean c2 = new workshop(); jobs(c1); jobs(c2); 遠(yuǎn)程方法調(diào)用： package client; import java.rmi.*; import java.math.*; import compute.*; /* * client

11、 that asks the generic compute server to compute pi. the first * command-line argument is the server hostname. the second command-line * argument is the number of required digits after the decimal point for the * computation. */ public class computepi public static void main(string args) / install a

12、 security manager! try /string name = / + args0 + /compute; string name = rmi:/localhost:3332/compute; / get a reference to the remote object from the registry. compute comp = (compute) naming.lookup(name); / create a task object. pi task = new pi(0); / ask the server to perform the computation. dou

13、ble pi = (double) (comp.executetask(task); system.out.println(pi); catch (exception e) system.err.println(computepi exception: + e.getmessage(); e.printstacktrace(); package client; import compute.*; import java.math.*; public class pi implements task private int digits; public pi(int digits) this.d

14、igits = digits; package compute; import java.rmi.*; /* * generic compute interface. */ public interface compute extends remote double executetask(task t) throws remoteexception; package compute; import java.io.serializable; /* * task interface. */ public interface task extends serializable package e

15、ngine; import java.math.bigdecimal; import java.rmi.*; import java.rmi.registry.locateregistry; import java.rmi.server.*; import compute.*; /* * server that executes a task specified in a task object. */ public class computeengine extends unicastremoteobject implements compute public computeengine()

16、 throws remoteexception super(); double pi; public double executetask(task t) pi=3.1415926; return pi; public static void main(string args) / install a security manager! / create the remote object. / register the remote object as compute. string name = rmi:/localhost:3332/compute; try compute engine

17、 = new computeengine(); locateregistry.createregistry(3332); naming.rebind(name, engine); system.out.println(computeengine bound); catch (exception e) system.err.println(computeengine exception: + e.getmessage(); e.printstacktrace(); 3實驗截圖 代理模式-追女友實例： 適配器模式-清潔系統(tǒng)： 遠(yuǎn)程方法調(diào)用： 對該模式的認(rèn)識 經(jīng)過本次代理遠(yuǎn)程方法調(diào)用和適配器模式的實驗，通過自己動手編代碼，是自己理解代理遠(yuǎn)程方法調(diào)用和適配器模式機(jī)制，并且知道代理遠(yuǎn)程方法調(diào)用和適配器模式有以下的優(yōu)點：代理模式適用性：在需要更高級的對象引