wicket pallete初识

最新推荐文章于 2025-05-01 23:24:04 发布

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最新推荐文章于 2025-05-01 23:24:04 发布

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分类专栏： wicket 文章标签： java

本文链接：https://blog.youkuaiyun.com/ffhu2015r/article/details/84733827

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本文将介绍如何利用Apache Wicket框架中的Pallete组件，实现动态面板选择功能，并通过提供HTML代码和Java代码示例，展示如何将书籍列表以面板形式呈现，方便用户进行选择。

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wicket 之Pallete

使用Pallete实现下面效果：

Html代码 MyPallete.html：

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form wicket:id="form">
<span wicket:id="palette">面板区域</span>
</form>
</body>
</html>

java 代码：

Book.java

mport java.io.Serializable;
//实现比较器Comparable
public class Book implements Serializable,Comparable<Book> {
    /**
    * serialVersionUID
    */
    private static final long serialVersionUID = 1L;
    private String id;
    private String name;
    public Book(String id, String name) {
        super();
        this.id = id;
        this.name = name;
    }
    public String getId() {
        return id;
    }
    public void setId(String id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    @Override
    public int compareTo(Book o) {

        return id.compareToIgnoreCase(o.getId());
    }

}
MyPallete.java

import java.io.Serializable;
import java.util.Arrays;
import java.util.List;

import org.apache.wicket.extensions.markup.html.form.palette.Palette;
import org.apache.wicket.markup.html.WebPage;
import org.apache.wicket.markup.html.form.ChoiceRenderer;
import org.apache.wicket.markup.html.form.Form;
import org.apache.wicket.markup.html.form.IChoiceRenderer;
import org.apache.wicket.model.Model;

public class MyPalette extends WebPage {
    public MyPalette() {
    List<Book> list=Arrays.asList(new Book("001","语文"),new Book("002","数学"),new Book("003","英语"),new Book("004","物理"));
    //初始化右侧
    List<Book> init=Arrays.asList(new Book("001","语文"),new Book("002","数学"));

    Form form =new Form("form");
    add(form);
    IChoiceRenderer<Book> renderer=new ChoiceRenderer<Book>("name", "id");
            /*
            new IChoiceRenderer<Book>() {
            @Override
            public Object getDisplayValue(Book object) {
                return object.getName();
            }

            @Override
            public String getIdValue(Book object, int index) {
                return object.getId();
            }
        };*/
    final Palette<Book> palette=new Palette<Book>("palette", new Model((Serializable) init), new Model((Serializable) list), renderer, 10, true);
    form.add( palette );

    }
}