我们今天来做一个医院挂号排队系统:分为病人,医生,服务器三个类。
病人:我只关心我挂哪个专家的号,我排在挂这个专家的队列里的位置和前面的人数。
医生:我有我的属性(id,name,需要看病的病人),而且我有一个处理病情的方法;我只关心挂我的号的人有多少,每次我只需要去从队列里取出病人就可以了,这就够了。
服务器:服务器需要设置一个Map(键值对应关系),将每一个医生对应的id和他的病人队列一一对应起来,需要初始化一些病人存储在每个医生的病人队列里。
再说UI:
病人客户端UI:
在点击事件监听器里:我需要知道排在我前面的人数有多少,我的位置是多少,需要将服务器的队列取过来处理。
医生客户端UI:
再点击事件监听器里:我只需要一个一个的叫下一位病人的名字或者号码就可以了。
下面附代码:
病人:
package com.dr.hospital;


public class Weaker
{

private int number;
private int frontnumber;
private String name;

public int getNumber()
{
return number;
}

public void setNumber(int number)
{
this.number = number;
}

public int getFrontnumber()
{
return frontnumber;
}

public void setFrontnumber(int frontnumber)
{
this.frontnumber = frontnumber;
}

public String getName()
{
return name;
}

public void setName(String name)
{
this.name = name;
}
}

医生:
package com.dr.hospital;


public class Doctor
{

private int id;
private String name;
private Weaker weaker;

public Doctor(Weaker weaker)
{
this.setWeaker(weaker);
}

public int getId()
{
return id;
}

public void setId(int id)
{
this.id = id;
}

public String getName()
{
return name;
}

public void setName(String name)
{
this.name = name;
}

public Weaker getWeaker()
{
return weaker;
}

public void setWeaker(Weaker weaker)
{
this.weaker = weaker;
}

public void handlDisease()
{
System.out.println("我正在治疗第"+this.weaker.getNumber()+"号病人的病情");

try
{
Thread.sleep(1000);

}catch(InterruptedException e)
{
e.printStackTrace();
}
System.out.println("我已经处理完第"+this.weaker.getNumber()+"号病人的病例");
System.out.println("请下一位病人到第"+(this.id+1)+"号医务室治疗病情");

try
{
Thread.sleep(1000);

}catch(InterruptedException e)
{
e.printStackTrace();
}
}
}

服务器:
package com.dr.hospital;

import java.util.HashMap;
import java.util.LinkedList;
import java.util.Map;
import java.util.Queue;


public class Server
{
public Map<Integer,Queue<Weaker>> doctorlist = new HashMap<Integer,Queue<Weaker>>();
public Queue<Weaker> doctor1weakerlist = new LinkedList<Weaker>();
public Queue<Weaker> doctor2weakerlist = new LinkedList<Weaker>();
public Queue<Weaker> doctor3weakerlist = new LinkedList<Weaker>();

public Queue<Weaker> init(Integer iter)
{
Weaker w= null;

if(iter==1)
{

for(int i=1;i<30;i++)
{
w = new Weaker();
w.setNumber(i);
w.setFrontnumber(i-1);
doctor1weakerlist.offer(w);
doctorlist.put(iter, doctor1weakerlist);
}
return doctor1weakerlist;
}

else if(iter==2)
{

for(int i=1;i<20;i++)
{
w = new Weaker();
w.setNumber(i);
w.setFrontnumber(i-1);
doctor2weakerlist.offer(w);
doctorlist.put(iter, doctor2weakerlist);
}
return doctor2weakerlist;
}

else
{

for(int i=1;i<10;i++)
{
w = new Weaker();
w.setNumber(i);
w.setFrontnumber(i-1);
doctor3weakerlist.offer(w);
doctorlist.put(iter, doctor3weakerlist);
}
return doctor3weakerlist;
}
}
}

病人客户端UI:
package com.dr.hospital;

import java.util.Queue;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;


public class WeakerQueueUI
{


public static void main(String[] args)
{
Display display = Display.getDefault();
final Shell shell = new Shell();
shell.setMaximized(true);
shell.setText("医院排队之病人客户端");
final Text text = new Text(shell,SWT.MULTI);
text.setBounds(500, 100, 300, 300);
Server server = new Server();
final Queue<Weaker> zhangweakerlist = server.init(1);
final Queue<Weaker> liweakerlist = server.init(2);
final Queue<Weaker> zhaoweakerlist = server.init(3);
Button button1 = new Button(shell,SWT.Activate);
button1.setBounds(250, 530, 200, 75);
button1.setText("张医生");

button1.addSelectionListener(new SelectionAdapter()
{

public void widgetSelected(SelectionEvent e)
{
Weaker w = new Weaker();
w.setNumber(zhangweakerlist.size()+1);
w.setFrontnumber(zhangweakerlist.size());
zhangweakerlist.offer(w);

if(zhangweakerlist.size()<=50)
{
text.setText("您现在排在"+w.getNumber()+"位置上,\n您前面有"+w.getFrontnumber()+"个人\n请您耐心等候吧!哈哈!");
}

else
{
text.setText("您前面已经排50个人,请考虑!\n"+"您现在排在"+w.getNumber()+"位置上,\n您前面有"+w.getFrontnumber()+"个人\n请您耐心等候吧!哈哈");
}
}
});
Button button2 = new Button(shell,SWT.Activate);
button2.setBounds(550, 530, 200, 75);
button2.setText("李医生");

button2.addSelectionListener(new SelectionAdapter()
{

public void widgetSelected(SelectionEvent e)
{
Weaker gw = new Weaker();
gw.setNumber(liweakerlist.size()+1);
gw.setFrontnumber(liweakerlist.size());
liweakerlist.offer(gw);

if(liweakerlist.size()<=50)
{
text.setText("您现在排在"+gw.getNumber()+"位置上,\n您前面有"+gw.getFrontnumber()+"个人\n请您耐心等候吧!哈哈!");
}

else
{
text.setText("您前面已经排超过50人了,请考虑!\n"+"您现在排在"+gw.getNumber()+"位置上,\n您前面有"+gw.getFrontnumber()+"个人\n请您耐心等候吧!哈哈");
}
}
});
Button button3 = new Button(shell,SWT.Activate);
button3.setBounds(850, 530, 200, 75);
button3.setText("赵医生");

button3.addSelectionListener(new SelectionAdapter()
{

public void widgetSelected(SelectionEvent e)
{
Weaker w = new Weaker();
w.setNumber(zhaoweakerlist.size()+1);
w.setFrontnumber(zhaoweakerlist.size());
zhaoweakerlist.offer(w);

if(zhaoweakerlist.size()<=50)
{
text.setText("您现在排在"+w.getNumber()+"位置上,\n您前面有"+w.getFrontnumber()+"个人\n请您耐心等候吧!哈哈!");
}

else
{
text.setText("您前面已经排50个人,请考虑!\n"+"您现在排在"+w.getNumber()+"位置上,\n您前面有"+w.getFrontnumber()+"个人\n请您耐心等候吧!哈哈");
}
}
});
shell.layout();
shell.open();

while(!shell.isDisposed())
{

if(!display.readAndDispatch())
{
display.sleep();
}
}
}
}

医生客户端UI:
package com.dr.hospital;

import java.util.Queue;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;


public class DoctorUI
{


public static void main(String[] args)
{

Display display = Display.getDefault();
final Shell shell = new Shell();
shell.setMaximized(true);
shell.setText("张医生客户端");
final Text text = new Text(shell,SWT.MULTI);
text.setBounds(500, 100, 300, 300);
final Button button = new Button(shell,SWT.Activate);
button.setBounds(550, 530, 200, 75);
button.setText("下一个病人");
Server server = new Server();
final Queue<Weaker> zhangwaiterlist = server.init(1);
final Queue<Weaker> liwaiterlist = server.init(2);
final Queue<Weaker> zhaowaiterlist = server.init(3);

button.addSelectionListener(new SelectionAdapter()
{

public void widgetSelected(SelectionEvent e)
{
Weaker w = zhangwaiterlist.poll();

if(w!=null)
{
text.setText("请"+w.getNumber()+"号病人到张医生医务室就医");
}

else
{
text.setText("现在没有病人看病了,您可以休息会了\n 喝杯咖啡吧,哈哈!");
}
}
});
shell.layout();
shell.open();

while(!shell.isDisposed())
{

if(!display.readAndDispatch())
{
display.sleep();
}
}
}

}

最后看看运行结果:
病人客户端:
医生客户端: