我有一个jsf模板页面。在这个模板中,我想使用带参数的组件。其实我想迭代收集。此集合应由特定页面的参数确定。参数名称为selectedMenu。我如何在我的bean中使用它?
<div id="notes">
selectedMenu: #{selectedMenu}
<h:form>
<h:inputHidden value="#{notatkaController.searchForm.kategoria}">
<f:param value="#{selectedMenu}" />
</h:inputHidden>
<ui:repeat value="#{notatkaController.items}" var="item" varStatus="iter">
<f:param value="#{selectedMenu}" />
<p class="q-title"><strong><h:outputText value="#{item.ntaData}" /></strong></p>
<p class="answer"><h:outputText value="#{item.ntaDane}" escape="false" /></p>
</ui:repeat>
<span>Moje notatki</span>
<textarea>Tu wpisz treść swojej notatki</textarea>
<span>[+] dodaj notatkę</span>
</h:form>
</div>
我的豆子:
@ManagedBean(name = "notatkaController")
@ViewScoped
public class NotatkaController extends AbstractController<Notatka> implements Serializable {
@EJB
private pl.alfaprojekt.model.session.NotatkaFacade ejbFacade;
private NotatkaSearchForm searchForm;
public DataModel getItems() {
if (items == null)
items = getPagination().createPageDataModel();
return items;
}
public PaginationHelper getPagination() {
if (pagination == null) {
if (paginationSize == null)
paginationSize = 10;
pagination = new PaginationHelper(paginationSize) {
@Override
public int getItemsCount() {
return getFacade().countByParam(getSearchForm());
}
@Override
public DataModel createPageDataModel() {
if (rapId == null)
return new ListDataModel(getFacade().findRangeByParam(getSearchForm(), new int[]{getPageFirstItem(), getPageFirstItem() + getPageSize()}));
else {
Long uzyId = SessionUtil.getUser().getUzyId();
return new ListDataModel(convertToRaportWierszList(getFacade().findRangeByParam(getSearchForm(), new int[]{getPageFirstItem(), getPageFirstItem() + getPageSize()}), uzyId));
}
}
};
}
return pagination;
}
}
答案 0 :(得分:0)
我不确定我理解这个问题,但我回答的问题是:
我想动态显示一些东西。我想告诉它在访问页面时要显示什么。
查看:强>
然后您可以使用以下内容:
<f:event listener="#{myBean.myMethod}" type="preRenderView" />
Bean:
public void myMethod(ComponentSystemEvent event){
//your logic here
}
使用参数:
<f:metadata>
<f:event listener="#{myBean.myMethod}" type="preRenderView" id="fevent"/>
<f:attribute name="myParam" value="#{mySecondBean.param)" />
</f:metadata>
和
public void myMethod(ComponentSystemEvent event){
String id = (String) event.getComponent().getAttributes().get("myParam");
}