commandButton 不调用 bean 操作方法

发布于 2024-11-19 06:56:29 字数 1857 浏览 0 评论 0原文

我对 JSF2 渲染操作有一个大问题。我使用简单的 c:forEach 来迭代列表。这个列表有 itens，这些项目有一个包含更多 Itens 的列表。所以它是一个嵌套的 c:forEach。子列表有一个输入字段，一旦保存，必须转到 bean，保存这个新输入，然后返回到带有更新列表的屏幕。没有什么复杂的事情要做。当我调试将列表发送回视图的方法时，我看到所有信息都是正确的。所以我们来解决这个问题：命令按钮第一次工作正常。但是，如果我在刷新后尝试单击列表上的另一个按钮，则该按钮不会调用我的方法。奇怪的是，该操作确实将其发送到 bean（它通过我的 @PostConstruct 方法），但没有调用我想要的方法。

代码：

 <c:forEach var="pub" items="${publicacaoCidadeController.listaPublicacao}" varStatus="status">
        <div>message from first list : ${status.count} <br/>
            <h:outputLabel value="#{pub.publicacao.mensagem}" />
            <br/><br/>message from second list :<br/>
            <h:form>
            <f:ajax event="action" execute="@form" render="@all">
            <c:forEach id="test2" var="com" items="#{pub.publicacao.comentarioList}" >                                 
                <div>
                <h:outputLabel value="#{com.mensagem}" />
                </div>                                
            </c:forEach> 
            <div>
            <h:inputTextarea value="#{publicacaoCidadeController.msgComentarioNovo}" />
            <div >                                    
                    <h:commandButton type="submit" value="Postar" action="#{publicacaoCidadeController.salvarComentario}" >
                        <f:param name="codPublicacao" value="#{pub.publicacao.codPublicacao}"/>
                        <f:param name="postNum" value="${status.count}"/>
                    </h:commandButton>
                </div>                                     
                </div>
                </f:ajax>
                </h:form>              
            </div>
    </c:forEach>

大家有什么想法吗？

原文

Im having a big issue with JSF2 render actions.
Im using a simple c:forEach to iterate over a List. This list has itens and those items has a List of more Itens. So its a nested c:forEach. The sub list has an input field that, once saved, has to go to the bean, save this new input, and get back to the screen with the updated List.
Nothing complex to do. When i debug the method that sends the List back to the view, i see that all the information is correct.
So here we go with the issue : The first time the commandButton works fine. But if i try to click on another button on the list just after it was refreshed, the button does not call my method. Whats wierd is that the action does sends it to the bean (it goes thru my @PostConstruct method), but does not call the method i want.

The code :

 <c:forEach var="pub" items="${publicacaoCidadeController.listaPublicacao}" varStatus="status">
        <div>message from first list : ${status.count} <br/>
            <h:outputLabel value="#{pub.publicacao.mensagem}" />
            <br/><br/>message from second list :<br/>
            <h:form>
            <f:ajax event="action" execute="@form" render="@all">
            <c:forEach id="test2" var="com" items="#{pub.publicacao.comentarioList}" >                                 
                <div>
                <h:outputLabel value="#{com.mensagem}" />
                </div>                                
            </c:forEach> 
            <div>
            <h:inputTextarea value="#{publicacaoCidadeController.msgComentarioNovo}" />
            <div >                                    
                    <h:commandButton type="submit" value="Postar" action="#{publicacaoCidadeController.salvarComentario}" >
                        <f:param name="codPublicacao" value="#{pub.publicacao.codPublicacao}"/>
                        <f:param name="postNum" value="${status.count}"/>
                    </h:commandButton>
                </div>                                     
                </div>
                </f:ajax>
                </h:form>              
            </div>
    </c:forEach>

Any ideas guys?

分享到QQ

分享到微博