我创建了一个动态属性来处理导航节点条目的可见性，与Hybris的所有相关规则兼容。我能够在Java代码中访问该属性而没有遇到任何问题，但是我不能让JSP解释它。***我的DynamicAttributeHandler类工作顺利，但JSP阅读失败。***以下是创建属性的步骤：

1）items.xml

<attribute qualifier="navigationNodeVisibility" type="java.lang.Boolean">
       <persistence type="dynamic" attributeHandler="navigationNodeVisibilityAttributeHandler"/>
       <modifiers read="true" write="false" search="true"/>
       <defaultvalue>java.lang.Boolean.TRUE</defaultvalue>
</attribute>

2）NavigationNodeVisibilityAttributeHandler.java

@Override
public Boolean get(CMSNavigationNodeModel model) {
    if (model != null) {
        for(CMSNavigationEntryModel cmsNavigationEntry:model.getEntries()){
            if(cmsNavigationEntry.getItem() instanceof  CMSLinkComponentModel){
                CategoryModel category= ((CMSLinkComponentModel)cmsNavigationEntry.getItem()).getCategory();
                if((category.getVisibility()== null || category.getVisibility() ) && ActiveProductStatus.ACTIVE == category.getActiveProductStatus()
                        && ManageCategoryByDateStatus.ACTIVE == category.getManageCategoryByDateStatus()){
                    return Boolean.TRUE;
                }
            }
        }
        return Boolean.FALSE;
    }
    return null;
}

3）注册bean

<bean id="navigationNodeVisibilityAttributeHandler" class="com.inomera.hybris.core.handler.NavigationNodeVisibilityAttributeHandler" />

4）ant clean all && ant updatesystem

每当我在jsp文件中调用它时，我都会得到一个错误，如“..处理JSP页时发生异常..”

<c:forEach items="${component.navigationNode.children}" var="cx">
    ${cx.navigationNodeVisibility}
</c:forEach>

以这种方式调用属性不会抛出异常，但在我的例子中，有必要在for循环中使用它。
${component.navigationNode.children[0].navigationNodeVisibility}
任何帮助或建议将不胜感激
注意：${cx.getNavigationNodeVisibility()}确实抛出了相同的JSP异常。

编辑：JSP异常示例

WARN  [hybrisHTTP14] [XXXXXXXXXXXX] [DefaultCMSComponentRendererRegistry] Error processing component tag. currentComponent [CategoryNavigationComponentModel (8796098036796@1)] exception: An exception occurred processing JSP page /WEB-INF/views/responsive/cms/categorynavigationcomponent.jsp at line 14

11: <nav id="menu" style="display: none;">
12:         <ul>
13:             <c:forEach items="${component.navigationNode.children}" var="childLevel1">
14:                 <c:if test="${ childLevel1.visible eq 'true' && childLevel1.navigationNodeVisibility}">
15:                     <li>
16:                         <c:forEach items="${childLevel1.entries}" var="childEntry1" end="1">
17:                             <c:if test="${not empty childLevel1.children}">