《wicket学习十七》&LocalizedChoicesExample-优快云博客

本文链接：https://blog.youkuaiyun.com/u010608964/article/details/89738499

现在来学习一个选择下拉框，做成的效果如下图所示。

我们来看一下实现的代码，如下所示。

public class HomePage extends WebPage{
    private static final long serialVersionUID = 1L;

    public HomePage() {

        List<Locale> locales = Arrays.asList(Locale.ENGLISH, Locale.ITALIAN, Locale.GERMAN);
        List<String> colors = Arrays.asList("green", "red", "blue", "yellow");

        final DropDownChoice<Locale> changeLocale = new DropDownChoice<Locale>("changeLocale", new Model<Locale>(), locales);

        StatelessForm form = new StatelessForm("form"){
            @Override
            protected void onSubmit() {
                Session.get().setLocale(changeLocale.getModelObject());
            }


        };
        //form.setDefaultModel(changeLocale);

        DropDownChoice<String> selectColor = new DropDownChoice<String>("selectColor", new Model<String>(), colors){
            @Override
            protected boolean localizeDisplayValues() {
                return true;
            }
        };

        form.add(selectColor);

        setStatelessHint(true);
        add(form.add(changeLocale));
    }
}

对应的html页面

<!DOCTYPE html>
<html xmlns:wicket="http://wicket.apache.org">
<head>
    <meta charset="utf-8" />
    <title></title>
</head>
<body>
<div id="bd">

        <form wicket:id="form">
            Select a Locale:
            <select wicket:id="changeLocale"></select>
            <br />
            Select a Color:
            <select wicket:id="selectColor"></select>
            <div>
                <input type="submit" value="submit"></div>
        </form>

</div>
</body>
</html>

几个配置文件

selectColor.null=Select a color
green=Green
red=Red
blue=Blue
yellow=Yellow