我需要一个我的rich：treeNode块的父文件夹的唯一ID

Question

我尝试使用JSF核心c：forEach为treeNode中的每个项启用唯一ID，但最终出现错误。任何帮助和建议都会很棒。这是代码：

<s:div id="sourceTreePanel" style="overflow: auto; height: 398px; padding: 0 0 10px 0;">
                                        <rich:tree id="fullExportSourceSelectionTree" value="#{exportFormFolderTreePageBean.exportSourceFolderTree}" var="node"
                                            ajaxSingle="true" stateAdvisor="#{defaultFolderTreeStateAdvisor}" ignoreDupResponses="true"
                                            nodeSelectListener="#{exportFormFolderTreePageController.nodeSelectMultiple}" switchType="ajax"
                                            ajaxSubmitSelection="true" limitToList="true" reRender="fullExportSourceSelectionTree, includeSubExportSourcefolders, selectedTable, selectedFolderCountPane, clearSelectionButton">
                                            <c:forEach varStatus="loop">
                                            <rich:treeNode id="foldertree_#{loop.index}" icon="#{exportFormFolderTreePageBean.exportSourceFoldersList.contains(node) ? 'img/tree/selected.png' : node.folderTreeItem.icon}"
                                                iconLeaf="#{exportFormFolderTreePageBean.exportSourceFoldersList.contains(node) ? 'img/tree/selected.png' : node.folderTreeItem.icon}" >
                                                <h:outputText value="#{node.folderTreeItem.folderName}" />
                                            </rich:treeNode>
                                            </c:forEach>
                                        </rich:tree>
                                    </s:div>