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2025-09-23 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Network Security >
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Agent mode: the agent and the principal realize the common behavior, and then let the agent system call the principal to complete these behaviors.
Example: the agent Proxy acts on behalf of MrLi to send gifts to MrssHong.
The class diagram is as follows:
Code implementation:
Define an interface for giving gifts: GiveGift
Package com.zpj.designMode.proxy;// defines an interface for giving gifts: public interface GiveGift {public void giveFlowers (); public void giveDolls (); public void giveChocolate ();}
Implement MrLi:
Package com.zpj.designMode.proxy;/** * MrLi will chase girls to give gifts, so to implement the interface GiveGift * / public class MrLi implements GiveGift {private MrssHong hong;// is pursued by public MrLi (MrssHong hong) {this.hong = hong;} @ Override public void giveFlowers () {System.out.println ("- send flowers -" + hong.getName ()) } @ Override public void giveDolls () {System.out.println ("- send dolls -" + hong.getName ();} @ Override public void giveChocolate () {System.out.println ("- send chocolates -" + hong.getName ());}}
Implement the proxy Proxy:
Package com.zpj.designMode.proxy;public class Proxy implements GiveGift {private MrLi person;// principal public Proxy (MrssHong hong) {person = new MrLi (hong);} @ Override public void giveFlowers () {person.giveFlowers ();} @ Override public void giveDolls () {person.giveDolls ();} @ Override public void giveChocolate () {person.giveChocolate ();}
Gift recipient: MrssHong
Package com.zpj.designMode.proxy;public class MrssHong {private String name; public MrssHong (String name) {super (); this.name = name;} public String getName () {return name;} public void setName (String name) {this.name = name;}}
Test class:
Package com.zpj.designMode.proxy;import org.junit.Test;public class TestUnit {@ Test public void test01 () {MrssHong hong = new MrssHong ("Red × × ×"); / / tell the agent who to send the gift, this agent belongs exclusively to MrLi Proxy proxy = new Proxy (hong); / / the agent sends the gift proxy.giveFlowers (); proxy.giveChocolate (); proxy.giveDolls () }}
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