有关排队系统的应用是很多的，本文是针对医院的排队挂号流程进行的简易设计。要设计排队系统，首先要分别设计出病人和专家的类，然后编写服务器类模拟出若干等侯的病人。最后分别编写出专家与病人的客户端。具体步骤及代码如下：

1.病人类。

package com.TinySK;

public class Pro {

private int  proId;

private String proName;

private  Patient patienter;

public Pro(Patient patienter){

this.patienter=patienter;

}

public int getProId() {

return proId;

}

public void setProId(int proId) {

this.proId = proId;

}

public String getProName() {

return proName;

}

public void setProName(String proName) {

this.proName = proName;

}

public Patient getPatienter() {

return patienter;

}

public void setPatienter(Patient patienter) {

this.patienter = patienter;

}

}

2.专家类。

package com.TinySK;

public class Pro {

private int  proId;

private String proName;

private  Patient patienter;

public Pro(Patient patienter){

this.patienter=patienter;

}

public int getProId() {

return proId;

}

public void setProId(int proId) {

this.proId = proId;

}

public String getProName() {

return proName;

}

public void setProName(String proName) {

this.proName = proName;

}

public Patient getPatienter() {

return patienter;

}

public void setPatienter(Patient patienter) {

this.patienter = patienter;

}

}

3.服务器端。

package com.TinySK;

import java.util.HashMap;

import java.util.LinkedList;

import java.util.Map;

import java.util.Queue;

public class PatientServer {

private static int num=1;

public static int getNum() {

return num;

}

public static void setNum(int num) {

PatientServer.num = num;

}

Map>  per=new HashMap>();

LinkedList waiterList1 = new LinkedList();

LinkedList waiterList2 = new LinkedList();

LinkedList waiterList3 = new LinkedList();

public Map> init(){

for(int i=1;i<=30;i++,num++){

Patient w1 = new Patient();

w1.setId(num);

w1.setFormer(i-1);

waiterList1.offer(w1);

}

per.put("冯医生",waiterList1);

for(int i=1;i<=20;i++,num++){

Patient w2 = new Patient();

w2.setId(num);

w2.setFormer(i-1);

waiterList2.offer(w2);

}

per.put("王医生",waiterList2);

for(int i=1;i<=10;i++,num++){

Patient w3 = new Patient();

w3.setId(num);

w3.setFormer(i-1);

waiterList3.offer(w3);

}

per.put("闫医生",waiterList3);

return per;

}

}

4.病人客户端。

package com.TinySK;

import java.util.Map;

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.graphics.Font;

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 PatientUI {

public static void main(String[] args) {

final Display display = Display.getDefault();

final Shell shell = new Shell();

shell.setMaximized(true);

shell.setText("医院排队客户端");

// ------------------新插入的界面核心代码------------------------

PatientServer ps = new PatientServer();//实例化类

final Map> waiterList = ps.init();

//初始化队列服务器

final Text txt1 = new Text(shell,SWT.MULTI);

txt1.setBounds(150, 50, 200, 400);

// 事件代码里要访问button，所以加final

final Button button1 = new Button(shell, SWT.Activate);

button1.addSelectionListener(new SelectionAdapter() { // 加一个择监听器

public void widgetSelected(SelectionEvent e) {

Queue  patient1List=waiterList.get("冯医生");

Patient patient1 = new Patient();

patient1.setId(patient1List.size()+1);

patient1.setFormer(patient1List.size());

patient1List.offer(patient1);

if(patient1List.size() <= 50){

txt1.setText( "您现在排在"+patient1.getId()+"位置上，\n您前面有"+patient1.getFormer()+"个人\n请您耐心等候吧！哈哈");

}else{

txt1.setText("您前面已经排50个人，请考虑！\n"+"您现在排在"+patient1.getId()+"位置上，\n您前面有"+patient1.getFormer()+"个人\n请您耐心等候吧！哈哈");

}

}

});

button1.setBounds(200, 530, 100, 40); // 设置按钮位置

button1.setFont(new Font(display,"宋体",12,SWT.BOLD));

button1.setText("冯医生");// 设置按钮上的文字

// ---------------------------------------------------------------

final Text txt2 = new Text(shell,SWT.MULTI);

txt2.setBounds(550, 50, 200, 400);

// 事件代码里要访问button，所以加final

final Button button2 = new Button(shell, SWT.Activate);

button2.addSelectionListener(new SelectionAdapter() { // 加一个择监听器

public void widgetSelected(SelectionEvent e) {

Queue  patient2List=waiterList.get("王医生");

Patient patient2 = new Patient();

patient2.setId(patient2List.size()+1);

patient2.setFormer(patient2List.size());

patient2List.offer(patient2);

if(patient2List.size() <= 50){

txt2.setText( "您现在排在"+patient2.getId()+"位置上，\n您前面有"+patient2.getFormer()+"个人\n请您耐心等候吧！哈哈");

}else{

txt2.setText("您前面已经排50个人，请考虑！\n"+"您现在排在"+patient2.getId()+"位置上，\n您前面有"+patient2.getFormer()+"个人\n请您耐心等候吧！哈哈");

}

}

});

button2.setBounds(600, 530, 100, 40); // 设置按钮位置

button2.setFont(new Font(display,"宋体",12,SWT.BOLD));

button2.setText("王医生");// 设置按钮上的文字

//-----------------------------------------------------------------------------

final Text txt3 = new Text(shell,SWT.MULTI);

txt3.setBounds(950, 50, 200, 400);

// 事件代码里要访问button，所以加final

final Button button3 = new Button(shell, SWT.Activate);

button3.addSelectionListener(new SelectionAdapter() { // 加一个择监听器

public void widgetSelected(SelectionEvent e) {

Queue  patient3List=waiterList.get("闫医生");

Patient patient3 = new Patient();

patient3.setId(patient3List.size()+1);

patient3.setFormer(patient3List.size());

patient3List.offer(patient3);

if(patient3List.size() <= 50){

txt3.setText( "您现在排在"+patient3.getId()+"位置上，\n您前面有"+patient3.getFormer()+"个人\n请您耐心等候吧！哈哈");

}else{

txt3.setText("您前面已经排50个人，请考虑！\n"+"您现在排在"+patient3.getId()+"位置上，\n您前面有"+patient3.getFormer()+"个人\n请您耐心等候吧！哈哈");

}

}

});

button3.setBounds(1000, 530, 100, 40); // 设置按钮位置

button3.setFont(new Font(display,"宋体",12,SWT.BOLD));

button3.setText("闫医生");// 设置按钮上的文字

shell.layout();

shell.open();

while (!shell.isDisposed()) {

if (!display.readAndDispatch())

display.sleep();

}

}

}

病人客户端运行界面如图：

5.医生客户端。

package com.TinySK;

import java.util.Map;

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.graphics.Font;

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 ProUI {public static void main(String[] args) {

final Display display = Display.getDefault();

final Shell shell = new Shell();

shell.setMaximized(true);

shell.setText("医院排队专家端");

// ------------------新插入的界面核心代码------------------------

PatientServer ps = new PatientServer();//实例化类

final Map> waiterList = ps.init();

//初始化队列服务器

final Text txt1 = new Text(shell,SWT.MULTI);

txt1.setBounds(150, 50, 200, 400);

// 事件代码里要访问button，所以加final

final Button button1 = new Button(shell, SWT.Activate);

button1.addSelectionListener(new SelectionAdapter() { // 加一个择监听器

public void widgetSelected(SelectionEvent e) {

Queue  patient1List=waiterList.get("冯医生");

Patient patient1 = patient1List.poll();

txt1.setText("请 " + patient1.getId()+"号到冯医生那里就诊");

}

});

button1.setBounds(200, 530, 100, 40); // 设置按钮位置

button1.setFont(new Font(display,"宋体",12,SWT.BOLD));

button1.setText("冯医生");// 设置按钮上的文字

// ------------------Second--------------------------------------------

final Text txt2 = new Text(shell,SWT.MULTI);

txt2.setBounds(550, 50, 200, 400);

// 事件代码里要访问button，所以加final

final Button button2 = new Button(shell, SWT.Activate);

button2.addSelectionListener(new SelectionAdapter() { // 加一个择监听器

public void widgetSelected(SelectionEvent e) {

Queue  patient2List=waiterList.get("王医生");

Patient patient2 = patient2List.poll();

txt2.setText("请 " + patient2.getId()+"号到冯医生那里就诊");

}

});

button2.setBounds(600, 530, 100, 40); // 设置按钮位置

button2.setFont(new Font(display,"宋体",12,SWT.BOLD));

button2.setText("王医生");// 设置按钮上的文字

//---------------------Third--------------------------------------------------------

final Text txt3 = new Text(shell,SWT.MULTI);

txt3.setBounds(950, 50, 200, 400);

// 事件代码里要访问button，所以加final

final Button button3 = new Button(shell, SWT.Activate);

button3.addSelectionListener(new SelectionAdapter() { // 加一个择监听器

public void widgetSelected(SelectionEvent e) {

Queue  patient3List=waiterList.get("闫医生");

Patient patient3 = patient3List.poll();

txt3.setText("请 " + patient3.getId()+"号到冯医生那里就诊");

}

});

button3.setBounds(1000, 530, 100, 40); // 设置按钮位置

button3.setFont(new Font(display,"宋体",12,SWT.BOLD));

button3.setText("闫医生");// 设置按钮上的文字

shell.layout();

shell.open();

while (!shell.isDisposed()) {

if (!display.readAndDispatch())

display.sleep();

}

}

}

医生客户端运行界面如图：

有关医院排队系统的简易模型就此完成，对于界面的美化，不再过多介绍。还有对于服务器端的模拟不太真实，这部分在实际应用中会很重要，而且要占一大部分内容，本文只是简单的模拟了一下服务器端。有关服务器端与用户端的结合使用，将在以后分析。本文写的不是很完善，若有问题请批评指正。