1

现在我正在从 3.5 迁移到 4.0。
我正在使用递归方法创建这棵树并从数据库中检索树。
使用 3.5 时，这按预期工作。但是当迁移到 4 时，我无法使用 hibernate jpa 进行编辑/合并。错误仅出现在 glassfish 控制台java.lang.NumberFormatException: For input string: "null"。

看看我的实体：

@Entity
@Table(schema = "public", name = "menu")
@XmlRootElement
public class Menu implements Serializable {

private static final long serialVersionUID = 1L;
@Id
@Basic(optional = false)
@NotNull
@Column(nullable = false)
private Integer menuid;
@Size(max = 100)
@Column(length = 100)
private String menuname;
private Integer parentid;
private Integer level;
private Integer ordering;
@Temporal(TemporalType.DATE)
private Date sessiondate;
@Size(max = 15)
@Column(length = 15)
private String action;
@Size(max = 15)
@Column(length = 15)
private String menutype;
@Column(name = "icon")
private String icon;
@OneToMany(fetch = FetchType.EAGER)
@JoinColumn(name = "parentid")
@OrderBy(value = "ordering")
private List<Menu> children = new LinkedList<>();

//appropriate getter setter

}

和我创建递归的方法： 

public void generateMenuTree() throws SQLException {
    // findUserConfirmationDefault root menu
    rootMenu = menuFacadeLocal.findHomeMenu();

    //recursively createUserConfirmationDefault tree menu
    menuTree = createTree(rootMenu, null);
}

public TreeNode createTree(Menu menu, TreeNode rootNode) throws SQLException {
    TreeNode newNode = new DefaultTreeNode(menu, rootNode);

    for (Menu subMenu : menu.getChildren()) {
        if (("mm").equalsIgnoreCase(subMenu.getMenutype())) {
            TreeNode newNode2 = createTree(subMenu, newNode);
        }
    }

    return newNode;
}

我使用以下方法显示树： 

<p:tab title="Access Menus">
<p:tree value="#{managePositionBean.menuTree}" var="menutree" selectionMode="checkbox" selection="#{managePositionBean.selectedTreeMenu}" animate="true">
    <p:treeNode icon="#{menutree.icon}">
        <h:outputText value="#{msgs[menutree.menuname]}"/>
    </p:treeNode>
</p:tree>

唯一可能的事情可能null只是#{menutree.icon}。
啊，是的，堆栈跟踪： 

INFO: java.lang.NumberFormatException: For input string: "null"
java.lang.NumberFormatException: For input string: "null"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:492)
at java.lang.Integer.parseInt(Integer.java:527)
at org.primefaces.component.api.UITree.findTreeNode(UITree.java:156)
at org.primefaces.component.api.UITree.setRowKey(UITree.java:87)
at org.primefaces.component.tree.TreeRenderer.decodeSelection(TreeRenderer.java:86)
at org.primefaces.component.tree.TreeRenderer.decode(TreeRenderer.java:56)
at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:787)
at org.primefaces.component.api.UITree.processDecodes(UITree.java:294)
at org.primefaces.component.tree.Tree.processDecodes(Tree.java:370)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176)
at org.primefaces.util.ComponentUtils.processDecodesOfFacetsAndChilds(ComponentUtils.java:414)
at org.primefaces.component.tabview.TabView.processDecodes(TabView.java:325)
at javax.faces.component.UIForm.processDecodes(UIForm.java:225)
at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:506)
at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
at javax.faces.component.UIForm.visitTree(UIForm.java:354)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1601)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1601)
at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:376)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:252)
at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183)
at org.primefaces.context.PrimePartialViewContext.processPartial(PrimePartialViewContext.java:57)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:931)
at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1550)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:98)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.omnifaces.facesviews.FacesViewsForwardingFilter.doFilter(FacesViewsForwardingFilter.java:121)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:75)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.omnifaces.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:115)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:75)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.omnifaces.filter.GzipResponseFilter.doFilter(GzipResponseFilter.java:148)
at org.omnifaces.filter.HttpFilter.doFilter(HttpFilter.java:75)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at ch.qos.logback.classic.helpers.MDCInsertingServletFilter.doFilter(MDCInsertingServletFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279)
at org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java)
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595)
at org.apache.catalina.core.StandardHostValve.__invoke(StandardHostValve.java:161)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java)
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:331)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231)
at com.sun.enterprise.v3.services.impl.ContainerMapper$AdapterCallable.call(ContainerMapper.java:317)
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:195)
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:860)
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:757)
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1056)
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:229)
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104)
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90)
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79)
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54)
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59)
at com.sun.grizzly.ContextTask.run(ContextTask.java:71)
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532)
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513)
at java.lang.Thread.run(Thread.java:744)

我什至删除了显示的图标，但仍然无法正常工作..我 的
环境是JEE 7，，，，，，，。Mojarra 2.1.24Glassfish 3.1.2.2Primefaces 3.5Primefaces Extension 1.0Omnifaces 1.5

我很困惑，问题是什么，是primefaces或mojarra或其他地方的错误还是只是我？
谢谢。

更新

也许认为我发现了问题，在我检查生成后html，我在树下firebug发现了这个。input hidden它里面的值似乎是被选中的 id 组件。在我勾选并取消勾选某些或树节点后，其中的值填充或消失。

<input type="hidden" id="Position:tView:j_idt110_selection" name="Position:tView:j_idt110_selection" value="null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,0,0_0,0_1,0_2,0_3,0_4,0_5,4,4_0,4_1,4_2,6,6_0,6_0_0,6_0_1,6_0_2,6_0_3,6_0_4,6_1,6_1_0,6_1_0_0,6_1_0_1,6_1_0_2,6_1_0_3,6_1_0_4,6_1_0_5,6_1_0_6,6_1_1,6_1_2,6_1_3,6_1_4,6_1_5,6_1_6,6_1_7,6_1_8,6_1_9,6_1_10,6_1_11,6_1_12,6_1_13,6_1_14,6_1_15,6_1_16,6_1_17,6_2,6_2_0,6_2_0_0,6_2_0_1,6_2_1,6_2_2,6_2_3,6_2_4,6_2_5,6_2_6,6_2_6_0,6_2_6_1,6_2_6_2,6_2_7,6_3,6_3_0,6_3_1,6_3_2,6_4,6_4_0,6_4_1,6_4_2,6_4_3,6_4_3_0,6_4_3_1,6_4_3_2,1,1_0,1_0_0,1_0_1,1_0_2,1_1,1_1_0,1_1_1,1_1_2,1_1_3,2,2_0,2_0_0,2_0_1,2_0_2,2_0_3,2_0_4,2_0_5,2_1,2_1_0,2_1_1,2_1_2,2_1_3,2_1_4,2_1_5,2_1_6,2_1_7,2_2,3,3_0,3_1,3_2,3_3,3_3_0,3_3_1,5,5_0,5_0_0,5_0_1,5_0_2,5_0_3,5_0_4,5_0_5,5_1,5_1_0,5_1_1,5_1_2,5_1_3,5_1_4,5_1_5,5_2,5_2_0,5_2_1,5_2_2,5_2_3,5_2_4,5_3,5_3_0,5_3_1,5_3_2,5_3_3,5_3_4,5_3_5,5_3_6,5_4">

我将展示我的编辑方法：

public void editingPosition(final Position pList) {
        position = pList;

        List<PrivilageuserDefault> defaults = privilageuserDefaultFacadeLocal.findPrivilageuserDefaultByPositionid(position.getPositionid());
        positionPrivilegesMap = privilageuserDefaultFacadeLocal.searchMapPrivilegeUserDefault(position.getPositionid());

        if (!defaults.isEmpty()) {
            PrivilageuserDefault[] arrayOfPositionPrivileges = defaults.toArray(new PrivilageuserDefault[defaults.size()]);

            int i = 0;
//                this.selectedTreeMenu = new TreeNode[defaults.size()]; --> commented on 2nd update
            for (PrivilageuserDefault pd : arrayOfPositionPrivileges) {
//                    TreeNode node = new DefaultTreeNode(pd.getMenu(), null); --> commented on 2nd update
//                    this.selectedTreeMenu[i] = node; --> commented on 2nd update
                i++;
            }

            checkTreeNodes(menuTree);
        }

        status = 2;
    }

如果存在，这将用于勾选树：

private void checkTreeNodes(TreeNode root) {
        if (root.getChildCount() > 0) {
            for (TreeNode children : root.getChildren()) {
                Menu menu = (Menu) children.getData();
                if (positionPrivilegesMap.containsKey(menu.getMenuid())) {
                    children.setSelected(true);
                }

                // recursive check
                checkTreeNodes(children);
            }
        }
    }

我认为，我在 CRUD 概念中做错了关于勾选/取消勾选树，或者我错过了一些步骤。

更新

是的，我是对的，null来自上述输入的值 hidden 是 selectedTreeMenu 变量是罪魁祸首。在我评论填充 selectedTreeMenu 的行之后（我已经更新了上面片段上的评论行），现在我可以从数据库中检索数据并且树上的选定节点被勾选。但是在我没有勾选/取消勾选选定节点的情况下立即更新选定的树后，它成功更新，但选定的节点没有更新/插入到数据库/删除。所以它是正确的，这还不够

children.setSelected(true);

看来， selectedTree 变量也必须填写，但是如何正确填写呢？：/

4

2 回答 2

0

最后，我找到了一些解决方法，快速补丁。我制作新List变量

private List<TreeNode> selectedTreeList;

并用节点填充它

private void checkTreeNodes(TreeNode root) {
        if (root.getChildCount() > 0) {
            for (TreeNode children : root.getChildren()) {
                Menu menu = (Menu) children.getData();
                if (positionPrivilegesMap.containsKey(menu.getMenuid())) {
                    children.setSelected(true);
                    expand(children);
                    selectedTreeList.add(children); // --> filled with this
                }

                // recursive check
                checkTreeNodes(children);
            }
        }
    }

在向 UI 显示之前，我将节点更改List为Array

selectedTreeMenu = selectedTreeList.toArray(selectedTreeMenu);

瞧！

于 2013-12-05T10:34:27.343 回答
0

感谢您指出我在 PrimeFaces 5.3 中面临的问题。在我的情况下，rowKey当我以编程方式添加孩子时，没有设置。我可以rowKey通过简单地将分隔符和子计数添加到当前节点的来设置我的代码来解决此问题rowKey：

public abstract class TreeNodeWrapper<T extends Serializable>
    implements Serializable, TreeNode
{
    ...

    public TreeNodeWrapper<T> addChild(String name)
    {
        T clone = cloneEntity(name);
        ...
        TreeNodeWrapper<T> childNode = newInstance(clone ...);
        String rowKeyFix = getRowKey();
        if (rowKeyFix != null) {
            rowKeyFix += "_" + this.children.size();
            childNode.setRowKey(rowKeyFix);
        }
        this.children.add(childNode);
        return childNode;
    }
}
于 2016-02-08T16:43:06.063 回答