问题：

Wicket 8-扩展机制不工作

甄成弘

2023-03-14

我正在将一个应用程序从旧版本的wicket迁移到wicket 8。一些页面工作正常（简单页面，如登录）。这些页面不使用扩展机制。当我访问具有该机制的页面时，该机制不起作用。我不知道这是否是一个bug，但我尝试了所有的方法，但没有找到解决方案。我正在使用wicket 8.0.0-M5（我知道这不是一个稳定的版本）。有人有同样的问题吗？这是我的代码：

WerklijstPagexxx.html

<html xmlns:wicket>
 <body>
    <wicket:extend>
        <div wicket:id="panelXXX"></div>
    </wicket:extend>
</body>

Werklijspanelxxx.html

<wicket:head xmlns:wicket>
</wicket:head>

<wicket:panel xmlns:wicket>
    <div wicket:id="filter">
         <div wicket:id="label"></div>
    </div>
</wicket:panel>

WerklijstPageXXX.java

public class WerklijstPageXXX extends BasePage {

private WerklijstPanelXXX werklijstPanel;

public WerklijstPageXXX() {
    werklijstPanel = new WerklijstPanelXXX("panelXXX"){};
    add(werklijstPanel);
}

@Override
public Panel getContextPanel(String id)
{
    return werklijstPanel.getWerklijstFilterPanel();
}

Werklijspanelxxx.java

public abstract class WerklijstPanelXXX extends Panel {
private static final Logger LOG = LoggerFactory
        .getLogger(WerklijstPanelXXX.class);

private Panel filterPanel;

public WerklijstPanelXXX(String id) {
    super(id);
    WebMarkupContainer upperPanel = new WebMarkupContainer("filter");
    filterPanel = new Panel("filterPanel") {

    };

    add(upperPanel);

    upperPanel.add(new Label("label"));


}

public Panel getWerklijstFilterPanel() {
    return filterPanel;
}

编辑：BasePage。html（它的一部分）

<div id="body" class="body">
                <div id="aside" class="aside">
                    <div wicket:id="contextPanel"></div>
                </div>
                <div id="content" class="content">
                    <div class="padding">
                        <wicket:child></wicket:child>
                    </div>
                </div>
            </div>

BasePage.java

    @Override
protected void onInitialize() {
    super.onInitialize();
    add(getContextPanel("contextPanel"));
    addTabMenu();
    addMenu();
    addPatientBar();
}

错误:

根源：

org.apache.wicket.WicketRuntimeException：下面的组件无法呈现。可能的原因是：1）您在代码中添加了一个组件，但忘记在标记中引用它（因此组件永远不会呈现），2）如果您的组件添加在父容器中，请确保子容器的标记包含它们。

> < Li >[WerklijstPanelXXX[Component id = panel XXX，page = nl . Philips . raris . web . werklijst . werklijstpagexxx，path = panelXXX，type = nl . Philips . raris . web . werklijst . werklijst . WerklijstPanelXXX，isVisible = true，isVersioned = true]，children =[web markup container[Component id = filter]]] < Li >[web markup container[Component id = filter，page = nl . Philips . raris . web . werklijst . werklijstpagexxx，path = panelXXX:filter，type = org . Apache . wicket . markup . html . web markup container，isVisible = true，isVersioned = true]，children =[Component id = label]] < li>[Component id = label，page = nl . Philips . raris . web . werklijst . werklijstpagexxx，path = panelXXX:filter:label，type = org . Apache . wicket . markup . html . basic . label，isVisible = true，isVersioned = true] < Li > < p >[Panel[Component id = filter Panel，page = nl . Philips . raris . web . werklijst . werklijstpagexxx，path = filterPanel，type = org . Apache . wicket . markup . html . Panel . Panel，isVisible = true，isVersioned = true]]

在RequestCycle.java:912（org.apache.wicket.request.RequestHandlerExecutor.execute）在RequestHandlerExecutor.java:65（org.apache.wicket.request.cycle.RequestCycle.execute）在RequestCycle.java:283（org.apache.wicket.request.cycle.RequestCycle.processRequest）在RequestCycle.java:253（org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach）在RequestCycle.java:221（org.apache.wicket.protocol.http.WicketFilter.processRequestCycle）在WicketFilter.java:262（org.apache.wicket.protocol.http.WicketFilter.processRequest）在WicketFilter.java:204（WebPageRenderer.java:124）在org.apache.wicket.request.handler.render.WebPageRenderer.respond（WebPageRenderer.java:236）在org.apache.wicket.core.request.handler.RenderPageRequestHandler.respond（RenderPageRequestHandler.java:175）在org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond（org.apache.wicket.Page.checkRendering）在Page.java:662（org.apache.wicket.Page.onAfterRender）在Page.java:805（org.apache.wicket.markup.html.WebPage.onAfterRender）在WebPage.java:209（org.apache.wicket.Component.afterRender）在Component.java:919（org.apache.wicket.Component.render）在Component.java:2335（org.apache.wicket.Page.renderPage）在Page.java:987（org.apache.wicket.request.handler.render.WebPageRenderer.renderPage）在org. apache. wicklet. servlet. doGet（WicketServlet. java： 137）在javax. servlet. http. HttpServlet. service（HttpServlet. java： 687）在javax. servlet. http. HttpServlet. service（HttpServlet. java： 790）在org. eclipse. jetty. servlet. ServletHandler（ServletHandler. java： 808）在org. eclipse. jetty. servlet. ServletHandler$CachedChain. doFilter（ServletHandler. java： 1669）在org.在org. springframework. orm. hibernate4. support. OpenSessionInViewFilter. doFilter内部（OpenSessionInViewFilter. java： 151）在org. springframe. web. filter. OncePerRequest estFilter. doFilter（OncePerRequest estFilter. java： 107）在org. eclipse. jetty. servlet. ServletHandler$CachedChain. doFilter（ServletHandler. java： 1652）

丁雅懿

2023-03-14

Java和超文本标记语言组件树应该匹配。

您的HTML状态：＜代码＞

public WerklijstPageXXX() {
    werklijstPanel = new WerklijstPanelXXX("panelXXX"){};
    add(werklijstPanel);
}

@Override
public Panel getContextPanel(String id)  // HERE id is ignored
{
    return werklijstPanel.getWerklijstFilterPanel(); // This returns a panel with id `filterPanel`
}

Wicket 8-扩展机制不工作

共有1个答案

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