来源：http://www.bjsxt.com/
一、【GOF23设计模式】_中介者模式、同事协作类、内部类实现
1 package com.test.mediator; 2 /** 3 * 同事类的接口 4 */ 5 public interface Department { 6 void selfAction();//做本部门的事情 7 void outAction();//向总经理发出申请 8 }
1 package com.test.mediator; 2 3 public class Development implements Department{ 4 private Mediator m;//持有中介者(总经理)的引用 5 6 public Development(Mediator m) { 7 super(); 8 this.m = m; 9 m.register("development", this); 10 } 11 12 @Override 13 public void selfAction() { 14 System.out.println(getClass().getName()+"专心科研，开发项目！"); 15 } 16 17 @Override 18 public void outAction() { 19 System.out.println(getClass().getName()+"汇报工作！没钱了，需要资金支持！"); 20 } 21 }
1 package com.test.mediator; 2 3 public class Finacial implements Department{ 4 private Mediator m;//持有中介者(总经理)的引用 5 6 public Finacial(Mediator m) { 7 super(); 8 this.m = m; 9 m.register("finacial", this); 10 } 11 12 @Override 13 public void selfAction() { 14 System.out.println(getClass().getName()+"数钱！"); 15 } 16 17 @Override 18 public void outAction() { 19 System.out.println(getClass().getName()+"汇报工作！没钱了，钱太多了！怎么花？"); 20 } 21 }
1 package com.test.mediator; 2 3 public class Market implements Department{ 4 private Mediator m;//持有中介者(总经理)的引用 5 6 public Market(Mediator m) { 7 super(); 8 this.m = m; 9 m.register("market", this); 10 } 11 12 @Override 13 public void selfAction() { 14 System.out.println(getClass().getName()+"跑去接项目！"); 15 } 16 17 @Override 18 public void outAction() { 19 System.out.println(getClass().getName()+"汇报工作！项目承接的进度，需要资金支持！"); 20 21 m.command("finacial"); 22 } 23 }
1 package com.test.mediator; 2 3 public interface Mediator { 4 void register(String dname,Department d); 5 void command(String dname); 6 }
1 package com.test.mediator; 2 3 import java.util.HashMap; 4 import java.util.Map; 5 6 public class President implements Mediator{ 7 private Map<String, Department> map = new HashMap<String, Department>(); 8 9 @Override 10 public void register(String dname, Department d) { 11 map.put(dname, d); 12 } 13 14 @Override 15 public void command(String dname) { 16 map.get(dname).selfAction(); 17 } 18 }
1 package com.test.mediator; 2 3 public class Client { 4 public static void main(String[] args) { 5 Mediator m = new President(); 6 7 Market market = new Market(m); 8 Development devp = new Development(m); 9 Finacial f = new Finacial(m); 10 11 market.selfAction(); 12 market.outAction(); 13 } 14 }
控制台输出：
com.test.mediator.Market跑去接项目！
com.test.mediator.Market汇报工作！项目承接的进度，需要资金支持！
com.test.mediator.Finacial数钱！
