Wicket框架基础（二）
pizza Application Sample
本节采用David R. Heffelfinger 撰写的 A First Look at the Wicket Framework一文做一个实际的例子。
本文档需要的环境
- NetBeans IDE 6.5
- Java Standard Development Kit (JDK™) 5.0 版或 6.0 版
- NetBeans IDE 的 Wicket Support 插件
一、在netbeans6.5中建立wickt应用程序
1、 建立一个“web应用程序”。在选择服务器（如tomcat6.0）和javaEE版本（如5.0规范）之后，选择框架“wicket1.4”。
把Wicket Name Page修改为：WicketTestPage，点击“完成”。
2、 编辑文件WicketTestPage.html：
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title></title>
<link wicket:id='stylesheet'/>
</head>
<body>
<form wicket:id="pizzaForm">
<div style="font-weight: bold;" font-weight="" bold=""><big>Online Pizza Builder</big></div>
<table style="text-align: left; 427px; height: 112px;" border="1"
cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td style="font-weight: bold; text-align: right;">Crust:</td>
<td><select wicket:id="crust">
<option>option 1</option>
<option>option 2</option>
<option>option 3</option>
</select></td>
</tr>
<tr>
<td style="font-weight: bold; text-align: right;">Toppings:</td>
<td>Pepperoni<input wicket:id="pepperoni" type="checkbox" /> Sausage<input
wicket:id="sausage" type="checkbox" /> Onions<input
wicket:id="onions" type="checkbox" /> Green Peppers<input
wicket:id="greenPeppers" type="checkbox" /></td>
</tr>
<tr>
<td style="font-weight: bold; text-align: right;">Comments:</td>
<td><input maxlength="50" size="50" wicket:id="comments" type="text" /></td>
</tr>
<tr>
<td style="text-align: center;" colspan="2"><input value="Submit"
name="Submit" type="submit" /></td>
</tr>
</tbody>
</table>
</form>
</body>
</html>
3、 编辑文件WicketTestPage.java：
public class WicketTestPage extends WebPage
{
PizzaForm pizzaForm = new PizzaForm("pizzaForm");
public WicketTestPage()
{
super();
add(pizzaForm);
}
}
4、新建java类，命名为PizzaForm。
5、 编辑文件PizzaForm.java：
public class PizzaForm extends Form
{
private DropDownChoice crustDropDown;
private CheckBox pepperoniCheckBox = new CheckBox("pepperoni");
private CheckBox sausageCheckBox = new CheckBox("sausage");
private CheckBox onionsCheckBox = new CheckBox("onions");
private CheckBox greenPeppersCheckBox = new CheckBox("greenPeppers");
private TextField commentsTextField = new TextField("comments");
public PizzaForm(String id)
{
super(id);
PizzaModel pizzaModel = new PizzaModel();
setModel(new CompoundPropertyModel(pizzaModel));
crustDropDown = new DropDownChoice(
"crust",new PropertyModel(pizzaModel, "crust"), Arrays
.asList(new CrustType[]
{ new CrustType("Thin & Crispy"),
new CrustType("Hand Tossed"),
new CrustType("Pan Pizza") }),
new ChoiceRenderer("text", "id"));
add(crustDropDown);
add(pepperoniCheckBox);
add(sausageCheckBox);
add(onionsCheckBox);
add(greenPeppersCheckBox);
add(commentsTextField);
}
}
6、新建java 类，命名PizzaModel；
7、 编辑PizzaModel.java：
public class PizzaModel implements Serializable
{
private String crust;
private boolean pepperoni;
private boolean sausage;
private boolean onions;
private boolean greenPeppers;
private String comments;
public String getComments()
{
return comments;
}
public void setComments(String comments)
{
this.comments = comments;
}
public String getCrust()
{
return crust;
}
public void setCrust(String crust)
{
this.crust = crust;
}
public boolean getGreenPeppers()
{
return greenPeppers;
}
public void setGreenPeppers(boolean greenPeppers)
{
this.greenPeppers = greenPeppers;
}
public boolean getOnions()
{
return onions;
}
public void setOnions(boolean onions)
{
this.onions = onions;
}
public boolean getPepperoni()
{
return pepperoni;
}
public void setPepperoni(boolean pepperoni)
{
this.pepperoni = pepperoni;
}
public boolean getSausage()
{
return sausage;
}
public void setSausage(boolean sausage)
{
this.sausage = sausage;
}
}
8、新建java类CrustType，编辑CrustType.java如下：
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package com.myapp.wicket;
import java.io.Serializable;
public class CrustType implements Serializable
{
String id;
String text;
public CrustType()
{
super();
}
public CrustType(String crustName)
{
setId(crustName);
setText(crustName);
}
public String getId()
{
return id;
}
public void setId(String id)
{
this.id = id;
}
public String getText()
{
return text;
}
public void setText(String value)
{
this.text = value;
}
@Override
public String toString()
{
return getText();
}
}
9、修改PizzaForm.java，添加方法onSubmit()：
@Override
protected void onSubmit()
{
PizzaModel pizzaModel = (PizzaModel) getModelObject();
setResponsePage(new WicketTestConfPage(pizzaModel));
}
9、 新建wicket page，命名为WicketTestConfPage；
10、 编辑WicketTestConfPage.html文件如下：
<table style="text-align: left; 427px; height: 112px;" border="1"
cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td style="font-weight: bold; text-align: right;">Crust:</td>
<td><span wicket:id="crust">Hello</span></td>
</tr>
<tr>
<td style="font-weight: bold; text-align: right;">Toppings:</td>
<td>Pepperoni: <span wicket:id="pepperoni"></span>
Sausage: <span wicket:id="sausage"></span> Onions: <span
wicket:id="onions"></span> Green Peppers: <span
wicket:id="greenPeppers"></span></td>
</tr>
<tr>
<td style="font-weight: bold; text-align: right;">Comments:</td>
<td><span wicket:id="comments"></span></td>
</tr>
</tbody>
</table>
11、 编辑WicketTestConfPage.java文件如下：
public class WicketTestConfPage extends WebPage
{
public WicketTestConfPage(PizzaModel pizzaModel)
{
super();
add(new Label("crust", pizzaModel.getCrust()));
add(new Label("pepperoni", new Boolean(pizzaModel.getPepperoni())
.toString()));
add(new Label("sausage", new Boolean(pizzaModel.getSausage()).toString()));
add(new Label("onions", new Boolean(pizzaModel.getOnions()).toString()));
add(new Label("greenPeppers", new Boolean(pizzaModel.getGreenPeppers())
.toString()));
add(new Label("comments", pizzaModel.getComments()));
}
}
12、 F6，运行主项目，WicketTestPage页面如下：
13、 在表单中输入任意内容，点submit提交，页面转至：