無法通過Ajax請求更新視圖

Question

在服務器端調用該方法，在托管bean中更新字段，但視圖不更新。

<h:panelGroup id="grupoPergunta" rendered="#{gameController.view.mostrarPergunta}">
    <h:outputLabel id="pergunta" readonly="true" value="#{gameController.view.pergunta.descricao}" />
    <h:selectOneRadio styleClass="centro" value="#{gameControllerView.repostaEscolhida}">
        <f:selectItem itemValue="#{gameController.view.r1.alternativa}" itemLabel="#{gameController.view.r1.descricao}"></f:selectItem>
        <f:selectItem itemValue="#{gameController.view.r2.alternativa}" itemLabel="#{gameController.view.r2.descricao}"></f:selectItem>
        <f:selectItem itemValue="#{gameController.view.r3.alternativa}" itemLabel="#{gameController.view.r3.descricao}"></f:selectItem>
        <f:selectItem itemValue="#{gameController.view.r4.alternativa}" itemLabel="#{gameController.view.r4.descricao}"></f:selectItem>
        </h:selectOneRadio>
</h:panelGroup>
<!-- span onclick="sortearDado();"> Girar dado</span-->
<a4j:commandButton value="Pergunta" action="#{gameController.buscarPergunta()}" onclick="sortearDado();" render="grupoPergunta pergunta"/>

我也嘗試使用<f:ajax>但沒有效果。

Answer 1

我在內部放置了最重渲染的對象，並在渲染中使用它，它可以解決我的問題

<a4j:outputPanel id="painelPergunta">
                        <h:outputLabel id="pergunta" readonly="true" value="#{gameController.view.pergunta.descricao}"  rendered="#{gameController.mostraPergunta}"/>
                        <h:selectOneRadio style="border:0px;" styleClass="centro" value="#{gameControllerView.repostaEscolhida}" rendered="#{gameController.mostraPergunta}">
                            <f:selectItem itemValue="#{gameController.view.r1.alternativa}" itemLabel="#{gameController.view.r1.descricao}"></f:selectItem>
                            <f:selectItem itemValue="#{gameController.view.r2.alternativa}" itemLabel="#{gameController.view.r2.descricao}"></f:selectItem>
                            <f:selectItem itemValue="#{gameController.view.r3.alternativa}" itemLabel="#{gameController.view.r3.descricao}"></f:selectItem>
                            <f:selectItem itemValue="#{gameController.view.r4.alternativa}" itemLabel="#{gameController.view.r4.descricao}"></f:selectItem>
                        </h:selectOneRadio>
                    </a4j:outputPanel>






<h:commandButton value="Pergunta2" onclick="sortearDado();">
        <f:ajax execute="@form" event="click" render="painelPergunta" listener="#{gameController.buscarPergunta()}"></f:ajax>
    </h:commandButton>