我的代码是这样的:
<h:form>
<p:accordionPanel>
<p:tab title="TAB 1">
<h:panelGrid columns="2" cellpadding="10">
<p:menu model="#{usuarioSesion.miMenu}" />
</h:panelGrid>
</p:tab>
<p:tab title="TAB 2">
<h:panelGrid columns="2" cellpadding="10">
Ayuda
</h:panelGrid>
</p:tab>
</p:accordionPanel>
</h:form>
我的托管 bean 就像:
@ManagedBean(name = "usuarioSesion")
@SessionScoped
public class UsuarioCtrl implements Serializable{
private DefaultMenuModel miMenu;
@SuppressWarnings("unused")
@PostConstruct
private void init(){
FacesContext facesContext = FacesContext.getCurrentInstance();
Application application = facesContext.getApplication();
ExpressionFactory expressionFactory = application.getExpressionFactory();
ELContext elContext = facesContext.getELContext();
miMenu = new DefaultMenuModel();
Submenu submenu;
submenu = new Submenu();
submenu.setId("idCabecera");
submenu.setLabel("Operaciones");
MenuItem item = new MenuItem();
item.setValue("Organismos");
item.setId("idOrganismo");
item.setActionExpression(expressionFactory.createMethodExpression(elContext, "#{usuarioSesion.listar2}", String.class, new Class[0]));
item.setAjax(false);
item.setAsync(false);
submenu.getChildren().add(item);
MenuItem item2 = new MenuItem();
item2.setId("idAplicacion");
item2.setValue("Aplicacion");
item2.setActionExpression(expressionFactory.createMethodExpression(elContext, "#{usuarioSesion.listar1}", String.class, new Class[0]));
item2.setAjax(false);
item2.setAsync(false);
submenu.getChildren().add(item2);
miMenu.addSubmenu(submenu);
}
public String listar1(){
.....
}
public String listar2(){
.....
}
当我单击菜单项时运行此代码时,永远不会执行 listar1()、listar2() 方法。
是什么原因?
但是使用此代码:
<h:form>
<h:panelGrid columns="2" cellpadding="10">
<p:menu model="#{usuarioSesion.miMenu}" />
</h:panelGrid>
</h:form>
菜单工作正常。为什么???
谢谢