我到处搜索但找不到我的问题的答案，所有问题和答案都与selectOneMenu有关。我在我的页面中使用了selectOneListbox组件，如下所示
<h:selectOneListbox id="basic" value="#{location.selectedCategory}" style="width: 400px; border: none;" >
<f:selectItems value="#{location.categories}" var="y" itemLabel="#{y.title} (#{y.itemCount})" itemValue="#{y}" />
<f:ajax listener="#{location.onNodeSelect}"/>
<f:ajax render="itemsPanel" execute="@this"/>
</h:selectOneListbox>
我的豆，
@ManagedBean(name = "location")
@SessionScoped
public class LocationServiceBean extends BaseService implements Serializable{
public void onNodeSelect(AjaxBehaviorEvent event) {
log.info("Entering method : onNodeSelect : ");
if(null != selectedCategory){
GetCategoriesAndItemsResponse response =getLocationSupport().getItemsByCategoryAndLocation(selectedCategory.getId(), selectedLocationId);
if(response.getStatusCode().equals("0"))
{
items = response.getData().getItems();
log.info("Items size: " + items.size());
}
}
}
}
问题在于，当我在列表框中选择项目时，selectOneListBox中的上述侦听器不会被触发。尝试使用primeface（3.5）组件，但没有运气。
更新：添加更多代码
<h:form id="venuForm" prependId="false">
<legend>2. Choose Venue</legend>
<div class="control-group">
<label class="span3" for="Country">Venue</label>
<div class="controls">
<h:selectOneMenu value="#{location.selectedLocationId}" id="select01" required="true"
requiredMessage="Location is a mandatory field" styleClass="span8">
<f:selectItem itemValue="#{null}" itemLabel="Select Location" noSelectionOption="true" />
<f:selectItems value="#{location.allLocations}" var="c" itemLabel="#{c.title}" itemValue="#{c.locationId}" />
<f:ajax listener="#{location.loadCategoriesListner}" render=":itemForm:categoriesPanel" execute="@this" />
<f:ajax execute="@this" render=":itemForm:itemsPanel" />
</h:selectOneMenu>
</div>
</div>
</h:form>
<h:form id="itemForm" prependId="false">
<legend>3. Choose Gift</legend>
<div class="control-group">
<p:outputPanel id="panel" autoUpdate="true">
<div style="padding-left: 5px; padding-right: 5px; padding-bottom: 5px; border: none;">
<p:panel id="categoriesPanel" rendered="#{location.categories != null}" autoUpdate="true" style=" border: none;">
<h:selectOneListbox id="basic" value="#{location.selectedCategory}" style="width: 400px; border: none;">
<f:selectItems value="#{location.categories}" var="y" itemLabel="#{y.title} (#{y.itemCount})" itemValue="#{y}" />
<f:ajax listener="#{location.onNodeSelect}" render="itemsPanel" execute="@form" event="change"/>
</h:selectOneListbox>
</p:panel>
</div>
</p:outputPanel>
<div class="clear" style="height: 30px;"></div>
<div style="padding-bottom: 5px; padding-top: 5px;">
<p:panel id="itemsPanel" style="float: left;" header="Items">
<ui:repeat value="#{location.items}" var="o" id="itemTable">
<div style="width: 170px; height: 200px; margin: auto; float: left; border-style: solid; border-color: #ECE5B6; border-width: thin;">
<div style="margin: 5px; padding: 5px;">
<div style="margin-bottom: 5px;">
<h:outputText value="#{fnc:getTitleTruncateText(o.title)}" style="margin: 0 auto; padding: 0 0 20px; color: #9A1326; width: 100px; font-size: 14px; text-align: center;" />
<BR />
</div>
<div style="padding-left: 45px; margin-bottom: 5px;">
<h:graphicImage value="http://dev.cdn.abc.com/#{o.imageId}_3.png" id="itemImage" alt="#{o.title}" />
</div>
<div
style="padding: 5px 10px; background-color: #FFC200; margin: 15px auto 0 auto; width: 100px; text-align: center; color: #29000F; border: 1px solid #F2BD00;">
<h:outputText value="$ #{fnc:formatDoubleValue(o.salePrice)}" />
</div>
<div class="clear" style="height: 5px;"></div>
<div style="float: left;">
<div style="float: left; margin-right: 50px;">
<p:spinner id="itemQty" value="#{o.selectedQty}" size="3" min="1" max="#{o.qtyAvailable}" style="width: 20px;" />
</div>
<div style="float: right;">
<h:commandButton value="Add" id="addToCartBtn" rendered="#{o.qtyAvailable > 0 }" actionListener="#{location.addItemToCart(o)}" />
</div>
</div>
</div>
</div>
</ui:repeat>
</p:panel>
</div>
<div class="clear" style="height: 30px;"></div>
<div style="float: right;">
<h:commandButton action="#{location.gotoUserDetails}" value="Next" onclick="return(validate());" rendered="#{!empty location.selectedItems}" />
</div>
</div>
</h:form>
答案 0 :(得分：1)
问题在于转换器。问题可以通过从jsf组件获取原始类型值（即整数，字符串...），或为类创建自定义转换器并在组件（属性：转换器）中引用它来解决。