Wicket：如何在运行时添加链接地址

Question

有人知道如何在Wicket中动态添加链接地址吗？

Answer 1

ExternalLink takes a model parameter that supplies a link URL. ExternalLink采用提供链接URL的模型参数。 That model can be pretty much anything. 该模型几乎可以是任何东西。 Here's one that generates random links ( LoadableDetachableModel is a convenience implementation of a dynamic model): 这是一个生成随机链接的代码（ LoadableDetachableModel是动态模型的便捷实现）：

IModel<String> model=new LoadableDetachableModel<String>() {
    private static final long   serialVersionUID    = 1L;
    @Override
    protected String load() {
        // this class does not really exist
        return LinkRandomizer.getNewRandomUrl();
    }
};
add(new ExternalLink("link", model));

See: 看到：

It turns out the OP needs a ListView with ExternalLink s. 事实证明，OP需要一个带有ExternalLink的ListView 。

Here is a Panel with a list of links: 这是带有链接列表的面板：

public class FooPanel extends Panel {

    private static final long   serialVersionUID    = 1L;

    public static class LinkBean{
        private String link;
        private String label;
        public LinkBean(final String link, final String label) {
            this.link = link;
            this.label = label;
        }
        public String getLabel() {
            return this.label;
        }
        public String getLink() {
            return this.link;
        }
        public void setLabel(final String label) {
            this.label = label;
        }
        public void setLink(final String link) {
            this.link = link;
        }


    }

    public FooPanel(final String id) {
        super(id);
        this.add(new ListView<LinkBean>("item", 
                Arrays.asList(
                    new LinkBean("http://www.google.com/","Google"), 
                    new LinkBean("http://www.ebay.com/", "Ebay"))
                ) {

            private static final long   serialVersionUID    = 1L;

            @Override
            protected void populateItem(final ListItem<LinkBean> item) {
                item.add(new ExternalLink("link", item.getModelObject().getLink())
                    .add(new Label("label",item.getModelObject().getLabel()))
                );

            }
        });
    }
}

And here is the associated HTML: 这是关联的HTML：

<html><head></head><body>
<wicket:panel>
    <div class="linkItem" wicket:id="item">
        <a href="" wicket:id="link" >
            <wicket:container wicket:id="label" />
        </a>
    </div>
</wicket:panel>
</body></html>

The Output will be something like this: 输出将是这样的：

<div class="linkItem"><a href="http://www.google.com/">Google</a></div>
<div class="linkItem"><a href="http://www.ebay.com/">Ebay</a></div>

See 看到

ListView and other repeaters (an ancient tutorial, careful: this relates to the older non-generic version of ListView in 1.3.x) ListView和其他转发器（一个古老的教程，请注意：这与1.3.x中的ListView的较旧的非通用版本有关）
Wicket Examples: Repeater Views (ListView is not covered, but the handling is pretty identical) Wicket示例：中继器视图（不包含ListView，但是处理方式完全相同）
ListView Api docs ListView Api文档
Wicket in Action (A very good book about Wicket you should consider buying) Wicket in Action （有关Wicket的非常好的书，您应该考虑购买）

Wicket：如何在运行时添加链接地址

问题描述

1 个解决方案

解决方案1
3 已采纳 2010-09-04 08:18:19

Wicket：如何在运行时添加链接地址

问题描述

1 个解决方案

解决方案1 3 已采纳 2010-09-04 08:18:19

解决方案1
3 已采纳 2010-09-04 08:18:19