Question

我需要一些支持，我不知道可能是什么：

我正在使用JSF 2和 Primefaces ，开发一个我需要动态创建 MenuBar 的网站，我正在使用动态菜单的基本结构Primefaces（MenuModel）：

DefaultMenuModel - ＆gt; DefaultSubMenu - ＆gt; DefaultMenuItem

对于我的页面，我正在创建一个会话bean，它负责创建我的菜单（如果有必要）并重新创建（如果有任何更改），一切正常，我的菜单创建了所有参数（结果）和其他方法（行动）。

我的问题是当我点击菜单中的各个子菜单时，我的菜单会一次又一次丢失，我的系统会抛出异常

更好的例子：

通过更好地解释：

我点击了一个子菜单，它将我重定向到另一个页面这个另一个页面我再次点击另一个子菜单，它将我重定向到另一个页面，等等....

我正在使用：

PrimeFaces 5.1

这是我的例外：

java.lang.ClassCastException: org.primefaces.model.menu.DefaultSubMenu
at org.primefaces.component.menu.BaseMenuRenderer.findMenuitem(BaseMenuRenderer.java:90)
at org.primefaces.component.menu.BaseMenuRenderer.decode(BaseMenuRenderer.java:61)
at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:787)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1181)
at javax.faces.component.UIForm.processDecodes(UIForm.java:225)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176)
at org.primefaces.component.layout.Layout.processDecodes(Layout.java:226)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176)
at org.primefaces.component.layout.Layout.processDecodes(Layout.java:226)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:933)
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 weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:242)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:216)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:132)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:352)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:75)
at com.ford.fc.adr.jpa.JPAFilter.doFilter(Unknown Source)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:75)
at com.ford.fc.atd.servlet.filter.AbstractFilter.invokeNextFilter(Unknown Source)
at com.ford.fc.atd.servlet.filter.AbstractFilter.doFilter(Unknown Source)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:75)
at com.ford.fc.atd.servlet.filter.AbstractFilter.invokeNextFilter(Unknown Source)
at com.ford.fc.atd.servlet.filter.AbstractFilter.doFilter(Unknown Source)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:75)
at com.ford.fc.atd.servlet.filter.AbstractFilter.invokeNextFilter(Unknown Source)
at com.ford.fc.atd.servlet.filter.AbstractFilter.doFilter(Unknown Source)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:75)
at com.ford.fc.atd.servlet.filter.XSSParameterEncodingFilter.doFilter(Unknown Source)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:75)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:105)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:75)
at com.ford.fc.atd.servlet.filter.AbstractFilter.invokeNextFilter(Unknown Source)
at com.ford.fc.atd.servlet.filter.AbstractFilter.doFilter(Unknown Source)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:75)
at org.jboss.weld.servlet.ConversationPropagationFilter.doFilter(ConversationPropagationFilter.java:63)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:75)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:75)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3288)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3254)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2163)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2091)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2074)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1512)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:255)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:256)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:221)

这是我的Bean代码：

//more imports

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.faces.bean.ManagedBean;
import javax.faces.bean.ManagedProperty;
import javax.faces.bean.SessionScoped;
import javax.faces.context.ExternalContext;
import javax.faces.context.FacesContext;
import javax.inject.Inject;

import org.primefaces.event.MenuActionEvent;
import org.primefaces.model.menu.DefaultMenuItem;
import org.primefaces.model.menu.DefaultMenuModel;
import org.primefaces.model.menu.DefaultSubMenu;
import org.primefaces.model.menu.MenuItem;
import org.primefaces.model.menu.MenuModel;

//more imports

@ManagedBean
@SessionScoped
public class MenuBean extends BaseResourcePage {

    /**
     * Serial Id.
     */
    private static final long serialVersionUID = -3250501071227237715L;

    /**
     * 
     */
    private static final String LOG_FACILITY = MenuBean.class.getPackage().getName();


    @ManagedProperty(value="#{BEANAuth}")
    private BEANAuthBean BEANAuth;

    @Inject
    UserSession userSession;

    private MenuModel mainMenu;

    private MenuModel breadCrump;

    private CountryEntity selectedcountry = new CountryEntity();

    private static final String DOT_TITLE = ".title";

    private static final String MODIFY = "modify";

    private static final String VIEW = "view";

    public MenuModel getBreadCrumb() {
        if(this.userSession.getCountryUsed() != null && this.breadCrump == null) {
            Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "getBreadCrumb = CREATE A BREADCRUMB");
            createHomeElementBreadcrumb();
        }

        Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "getBreadCrumb = In here");
        if(this.breadCrump != null) {
            Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "getBreadCrumb = SIZE ELEMENTS " + this.breadCrump.getElements().size());
        }
        return this.breadCrump;
    }

    private void createHomeElementBreadcrumb() {

        DefaultMenuItem homeElement = new DefaultMenuItem();
        homeElement.setId("homeBreadcumb");
        homeElement.setValue("Home");
        homeElement.setTitle("Home");
        homeElement.setCommand("#{menuBean.doClearBreadCrumb}");
        homeElement.setParam("outcome", new String("homePage"));
        homeElement.setAjax(false); // TODO REMOVE AJAX TRANSACTION

        this.breadCrump = new DefaultMenuModel();
        this.breadCrump.addElement(homeElement);
    }

    public String doClearBreadCrumb(MenuActionEvent  event) {
        String outcome = event.getMenuItem().getParams().get("outcome").get(0);
        createHomeElementBreadcrumb();
        Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "doClearBreadCrumb(MenuActionEvent) = OutCome : " + outcome);
        return outcome;
    }

    public String doClearBreadCrumb() {
        createHomeElementBreadcrumb();
        Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "doClearBreadCrumb = OutCome : homePage");
        return "homePage";
    }

    public MenuModel getMenuModel() throws CloneNotSupportedException {
        if(userSession.getCountryUsed() != null 
                && !userSession.getCountryUsed().equals(this.selectedcountry)) {
            Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "getMenuModel = CREATE A MAIN MENU");
            this.selectedcountry = this.userSession.getCountryUsed().clone();
            createMenu();
        }
        Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "getMenuModel = In here");

        if(this.mainMenu != null) {
            Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "getMenuModel = SIZE ELEMENTS " + this.mainMenu.getElements().size());
        }

        return this.mainMenu;
    }

    private void createMenu() {
        this.mainMenu = new DefaultMenuModel();

        //TODO ACCESS MENU ????
        createDocumentAndAcceptsMenu();
        createJudicialAssignmentMenu();
        createAgreementMenu();
        createGeneralMenu();
        createReportsMenu();
        createPaymentFeesMenu();
        createPayLegalFeesMenu();
        createProcessesMenu();
        createRepossessionMenu();
        createRecordsMenu();
    }

    private void createDocumentAndAcceptsMenu() {
        Map<String, NavigationEnum> documentAndAcceptsItems = new HashMap<String, NavigationEnum>();
        documentAndAcceptsItems.put(new String("documentAndAccepts.acceptsProcess"), ACCEPTS_PROCESS);
        documentAndAcceptsItems.put(new String("documentAndAccepts.sendReceiveDocuments"), SEND_RECEIVE_DOCUMENTS);

        DefaultSubMenu documentAndAcceptsMenu = createMenuItems(documentAndAcceptsItems);
        documentAndAcceptsMenu.setLabel(getResourceAccessValue("menu.documentAndAccepts"));
        documentAndAcceptsMenu.setId(getResourceAccessValue("menu.documentAndAccepts") + "Id");


        this.mainMenu.addElement(documentAndAcceptsMenu);
    }

    private void createJudicialAssignmentMenu() {
        Map<String, NavigationEnum> judicialAssignmentItems = new HashMap<String, NavigationEnum>();
        judicialAssignmentItems.put(new String("judicialAssignment.lawyersAllocationByUser"), LAWYERS_ALLOCATION_BY_USER);
        judicialAssignmentItems.put(new String("judicialAssignment.judgmentLawyerAndDetermination"), JUDGMENT_LAWYER_AND_DETERMINATION);
        judicialAssignmentItems.put(new String("judicialAssignment.documentsRequestedList"), DOCUMENTS_REQUESTED_LIST);
        judicialAssignmentItems.put(new String("judicialAssignment.generalProcessAndFollowUps"), GENERAL_PROCESSAND_FOLLOW_UPS);
        judicialAssignmentItems.put(new String("judicialAssignment.preAssignmentFocus"), PRE_ASSIGNMENT_FOCUS);
        judicialAssignmentItems.put(new String("judicialAssignment.documentsRequestedBranch"), DOCUMENTS_REQUESTED_BRANCH);

        DefaultSubMenu judicialAssignmentMenu = createMenuItems(judicialAssignmentItems);
        judicialAssignmentMenu.setLabel(getResourceAccessValue("menu.judicialAssignment"));
        judicialAssignmentMenu.setId(getResourceAccessValue("menu.judicialAssignment") + "Id");
        this.mainMenu.addElement(judicialAssignmentMenu);
    }

    private void createAgreementMenu() {
        Map<String, NavigationEnum> agreementItems = new HashMap<String, NavigationEnum>();
        agreementItems.put(new String("agreement.followAgreement"), FOLLOW_AGREEMENT);
        agreementItems.put(new String("agreement.agreement"), AGREEMENT);
        agreementItems.put(new String("agreement.monthlyAgreement"), MONTHLY_AGREEMENT);

        DefaultSubMenu agreementMenu = createMenuItems(agreementItems);
        agreementMenu.setLabel(getResourceAccessValue("menu.agreement"));
        agreementMenu.setId(getResourceAccessValue("menu.agreement") + "Id");
        this.mainMenu.addElement(agreementMenu);
    }

    private void createGeneralMenu() {
        Map<String, NavigationEnum> generalItems = new HashMap<String, NavigationEnum>();
        generalItems.put(new String("general.branchRegion"), BRANCH_REGION);
        generalItems.put(new String("general.bucketsAging"), BUCKET_SAGING);
        generalItems.put(new String("general.filesSearch"), FILES_SEARCH);
        generalItems.put(new String("general.expenses"), EXPENSES);
        generalItems.put(new String("general.maintenanceControlFiles"), MAINTENANCE_CONTROL_FILES);
        generalItems.put(new String("general.keyTableMaintenance"), KEY_TABLE_MAINTENANCE);
        generalItems.put(new String("general.workdaysMaintenance"), WORKDAYS_MAINTENANCE);
        generalItems.put(new String("general.maintenanceMenu"), MAINTENANCE_MENU);
        generalItems.put(new String("general.parametersMaintenance"), PARAMETERS_MAINTENANCE);
        generalItems.put(new String("general.percentageFeesMaintenance"), PERCENTAGE_FEES_MAINTENANCE);
        generalItems.put(new String("general.tableSubkeyMaintenance"), TABLE_SUBKEY_MAINTENANCE);
        generalItems.put(new String("general.userTypeMaintenance"), USER_TYPE_MAINTENANCE);
        generalItems.put(new String("general.documentationTutorial"), DOCUMENTATION_TUTORIAL);

        DefaultSubMenu generalMenu = createMenuItems(generalItems);
        generalMenu.setLabel(getResourceAccessValue("menu.general"));
        generalMenu.setId(getResourceAccessValue("menu.general") + "Id");
        this.mainMenu.addElement(generalMenu);
    }

    private void createReportsMenu() {
        Map<String, NavigationEnum> reportsItems = new HashMap<String, NavigationEnum>();
        reportsItems.put(new String("reports.agingNoJudicialCollection"), AGING_NO_JUDICIAL_COLLECTION);
        reportsItems.put(new String("reports.agingLegalCollection"), AGING_LEGAL_COLLECTION);
        reportsItems.put(new String("reports.compass"), COMPASS);
        reportsItems.put(new String("reports.eventsOrCompass"), COMPASS_OR_NEWS);
        reportsItems.put(new String("reports.events"), EVENTS);
        reportsItems.put(new String("reports.legalExpenses"), LEGAL_EXPENSES);
        reportsItems.put(new String("reports.generalPayments"), GENERAL_PAYMENTS);
        reportsItems.put(new String("reports.harshDataReport"), HARSH_DATA_REPORT);
        reportsItems.put(new String("reports.assignmentsHistory"), ASSIGNMENTS_HISTORY);
        reportsItems.put(new String("reports.contractValuesHistory"), CONTRACT_VALUES_HISTORY);
        reportsItems.put(new String("reports.lawyerFees"), LAWYER_FEES);
        reportsItems.put(new String("reports.agenciesFees"), AGENCIES_FEES);
        reportsItems.put(new String("reports.listOfEmbargoedGoods"), LIST_OF_EMBARGOED_GOODS);
        reportsItems.put(new String("reports.reportOfSupervisor"), REPORT_OF_SUPERVISOR);
        reportsItems.put(new String("reports.paymentsByDate"), PAYMENTS_BY_DATE);
        reportsItems.put(new String("reports.reportBreakDownRecuperation"), REPORT_BREAK_DOWN_RECUPERATION);
        reportsItems.put(new String("reports.lawyerPaymentsSummary"), LAWYER_PAYMENTS_SUMMARY);
        reportsItems.put(new String("reports.stagesSummary"), STAGES_SUMMARY);
        reportsItems.put(new String("reports.summaryByEvents"), SUMMARY_BY_EVENTS);

        DefaultSubMenu reportsMenu = createMenuItems(reportsItems);
        reportsMenu.setLabel(getResourceAccessValue("menu.reports"));
        reportsMenu.setId(getResourceAccessValue("menu.reports") + "Id");
        this.mainMenu.addElement(reportsMenu);
    }

    private void createPaymentFeesMenu() {
        Map<String, NavigationEnum> paymentFeesItems = new HashMap<String, NavigationEnum>();
        paymentFeesItems.put(new String("paymentFees.activationFees"), ACTIVATION_FEES);
        paymentFeesItems.put(new String("paymentFees.cancelPayFees"), CANCEL_PAY_FEES);
        paymentFeesItems.put(new String("paymentFees.paymentFeesGenerate"), PAYMENT_FEES_GENERATE);
        paymentFeesItems.put(new String("paymentFees.paymentFeesList"), PAYMENT_FEES_LIST);
        paymentFeesItems.put(new String("paymentFees.effectiveFeesPayment"), EFFECTIVE_FEES_PAYMENT);

        DefaultSubMenu paymentFeesMenu = createMenuItems(paymentFeesItems);
        paymentFeesMenu.setLabel(getResourceAccessValue("menu.paymentFees"));
        paymentFeesMenu.setId(getResourceAccessValue("menu.paymentFees") + "Id");
        this.mainMenu.addElement(paymentFeesMenu);
    }

    private void createPayLegalFeesMenu() {
        Map<String, NavigationEnum> payLegalFeesItems = new HashMap<String, NavigationEnum>();
        payLegalFeesItems.put(new String("payLegalFees.payLegalFeesActivation"), PAY_LEGAL_FEES_ACTIVATION);
        payLegalFeesItems.put(new String("payLegalFees.cancelPayLegalFees"), CANCEL_PAY_LEGAL_FEES);
        payLegalFeesItems.put(new String("payLegalFees.generatePayLegalFees"), GENERATE_PAY_LEGAL_FEES);
        payLegalFeesItems.put(new String("payLegalFees.reportPayLegalFees"), REPORT_PAY_LEGAL_FEES);
        payLegalFeesItems.put(new String("payLegalFees.payLegalFees"), PAY_LEGAL_FEES);

        DefaultSubMenu payLegalFeesMenu = createMenuItems(payLegalFeesItems);
        payLegalFeesMenu.setLabel(getResourceAccessValue("menu.payLegalFees"));
        payLegalFeesMenu.setId(getResourceAccessValue("menu.payLegalFees") + "Id");
        this.mainMenu.addElement(payLegalFeesMenu);
    }

    private void createProcessesMenu() {
        Map<String, NavigationEnum> agreementItems = new HashMap<String, NavigationEnum>();
        agreementItems.put(new String("processes.assignExternalAgencies"), ASSIGN_EXTERNAL_AGENCIES);
        agreementItems.put(new String("processes.specialEventChanges"), SPECIAL_EVENT_CHANGES);
        agreementItems.put(new String("processes.loadEvents"), LOAD_EVENTS);
        agreementItems.put(new String("processes.loadJudicialEvents"), LOAD_JUDICIAL_EVENTS);
        agreementItems.put(new String("processes.guarantorInquiry"), GUARANTOR_INQUIRY);
        agreementItems.put(new String("processes.legalCustomerInquiry"), LEGAL_CUSTOMER_INQUIRY);
        agreementItems.put(new String("processes.contractInquiry"), CONTRACT_INQUIRY);
        agreementItems.put(new String("processes.legalClaim"), LEGAL_CLAIM);
        agreementItems.put(new String("processes.embargoedGoods"), EMBARGOED_GOODS);
        agreementItems.put(new String("processes.sentence"), SENTENCE);

        DefaultSubMenu processesMenu = createMenuItems(agreementItems);
        processesMenu.setLabel(getResourceAccessValue("menu.processes"));
        processesMenu.setId(getResourceAccessValue("menu.processes") + "Id");
        this.mainMenu.addElement(processesMenu);
    }

    private void createRepossessionMenu() {
        Map<String, NavigationEnum> repossessionItems = new HashMap<String, NavigationEnum>();
        repossessionItems.put(new String("repossession.vehicleStorage"), VEHICLE_STORAGE);
        repossessionItems.put(new String("repossession.repossessionReport"), REPOSSESSION_REPORT);
        repossessionItems.put(new String("repossession.repossessionVoluntarySurrender"), REPOSSESSION_VOLUNTARY_SURRENDER);

        DefaultSubMenu repossessionMenu = createMenuItems(repossessionItems);
        repossessionMenu.setLabel(getResourceAccessValue("menu.repossession"));
        repossessionMenu.setId(getResourceAccessValue("menu.repossession") + "Id");
        this.mainMenu.addElement(repossessionMenu);
    }

    private void createRecordsMenu() {
        Map<String, NavigationEnum> recordsItems = new HashMap<String, NavigationEnum>();
        recordsItems.put(new String("records.stages"), STAGES);
        recordsItems.put(new String("records.usersDealerDEList"), USERS_DEALER_DE_LIST);
        recordsItems.put(new String("records.dealerExternalAgenciesList"), DEALER_EXTERNAL_AGENCIES_LIST);
        recordsItems.put(new String("records.postalCodesRangeExternalAgencies"), POSTAL_CODES_RANGE_EXTERNAL_AGENCIES);
        recordsItems.put(new String("records.eventTableList"), EVENT_TABLE_LIST);
        recordsItems.put(new String("records.externalAgenciesAndLawyersMaintenance"), EXTERNAL_AGENCIES_AND_LAWYERS_MAINTENANCE);
        recordsItems.put(new String("records.maintenanceBusinessCategory"), MAINTENANCE_BUSINESS_CATEGORY);
        recordsItems.put(new String("records.instituteMaintenance"),  INSTITUTE_MAINTENANCE);
        recordsItems.put(new String("records.steps"), STEPS);

        DefaultSubMenu recordMenu = createMenuItems(recordsItems);
        recordMenu.setLabel(getResourceAccessValue("menu.records"));
        recordMenu.setId(getResourceAccessValue("menu.records") + "Id");

        //TODO test for add or not a menu without a result inside
        if(!recordMenu.isRendered()) {
            this.mainMenu.addElement(recordMenu);
        }
    }


    private DefaultSubMenu createMenuItems(final Map<String, NavigationEnum> menuItens) {

        DefaultSubMenu defaultSubMenu = new DefaultSubMenu();   

        for (String keyItem : menuItens.keySet()) {
            String resourceRule = getResourceRuleMenu(keyItem);

            if(BEANAuth.hasResPermission(resourceRule)) {
                String destination = menuItens.get(keyItem).getDestination();

                DefaultMenuItem menuItem = new DefaultMenuItem();
                menuItem.setId(destination + "MenuItemID");
                menuItem.setValue(getResourceAccessValue(keyItem));
                menuItem.setTitle(getResourceAccessValue(new StringBuilder(keyItem).append(DOT_TITLE).toString()));
                menuItem.setCommand("#{menuBean.addElementBreadcrumByMenu}");
                menuItem.setParam("outcome", destination);
                menuItem.setAjax(false); // TODO REMOVE AJAX TRANSACTION
                menuItem.setImmediate(true);
                menuItem.setUpdate(":mainMenuForm, :breadCrumbForm");

                Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "createMenuItems = ID MENU ITEM " + menuItem.getId());
                defaultSubMenu.addElement(menuItem);
            }
        }

        defaultSubMenu.setRendered(!defaultSubMenu.getElements().isEmpty());
        return defaultSubMenu;
    }

    private String getResourceRuleMenu(String keyItem) {
        return new StringBuilder(keyItem).append(":").append(VIEW).append(",").append(keyItem).append(":").append(MODIFY).toString();
    }

    public String addElementBreadcrumByMenu(MenuActionEvent  event) {
        MenuItem menuItem = event.getMenuItem();
        String outcome = menuItem.getParams().get("outcome").get(0);
        createHomeElementBreadcrumb();
        createElementBreadcrum(menuItem, outcome);
        Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "addElementBreadcrumByMenu(MenuActionEvent) = OutCome : " + outcome);
        return outcome;
    }

    public String addElementBreadcrumByMenuButton(MenuActionEvent  event) {
        MenuItem menuItem = event.getMenuItem();
        String outcome = menuItem.getParams().get("outcome").get(0);
        createElementBreadcrum(menuItem, outcome);
        Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "addElementBreadcrumByMenuButton(MenuActionEvent) = OutCome : " + outcome);
        return outcome;
    }

    private void createElementBreadcrum(MenuItem menuItem, String outcome) {
        DefaultMenuItem menuItemBreadCrump = new DefaultMenuItem();
        menuItemBreadCrump.setValue(menuItem.getValue());
        menuItemBreadCrump.setTitle(menuItem.getTitle());
        menuItemBreadCrump.setOutcome(outcome);

        menuItemBreadCrump.setAjax(false); // TODO REMOVE AJAX TRANSACTION

        Logger.getInstance().log(Severity.DEBUG, LOG_FACILITY, "createElementBreadcrum(MenuActionEvent) = OutCome : " + outcome);
        this.breadCrump.addElement(menuItem);
    }

    /**
     * Set BEANAuth Managed Bean for Injection.
     * 
     * @param BEANAuthBean
     */
    public void setBEANAuth(BEANAuthBean BEANAuthBean) {
        BEANAuth = BEANAuthBean;
    }
}

我创建的菜单图片：

我尝试过很多东西并没有取得好成绩，你能帮帮我吗？

更新

问题与组件ID 有关，原因是组件正在更改ID以重定向页面。

注意我没有立即生成MenuModel组件，。

我尝试使用 .generateUniqueIds（）方法，但仍然失败

这是我查看ID组件的日志，对于一个菜单：

首次重定向

 getMenuModel = In here
getMenuModel = SIZE ELEMENTS 1
Sub Menu Name : Aceptación y Documentos > Sub Menu ID : 0 > Sub Menu ID CLIENT : 0
## Item Menu Name : Acepta Proceso > Item Menu ID : 0_0 > Item Menu ID CLIENT : 0_0
## Item Menu Name : Envio/Recepcion Documentos > Item Menu ID : 0_1 > Item Menu ID CLIENT : 0_1

第二次重定向

getMenuModel = In here
getMenuModel = SIZE ELEMENTS 1
Sub Menu Name : Aceptación y Documentos > Sub Menu ID : 0 > Sub Menu ID CLIENT : 0
## Item Menu Name : Acepta Proceso > Item Menu ID : 1 > Item Menu ID CLIENT : 1
## Item Menu Name : Envio/Recepcion Documentos > Item Menu ID : 1 > Item Menu ID CLIENT : 1

Answer 1

我设法用菜单模型的新实例修复我的问题，并传递每个重定向已经创建的元素。

如果有人有更好的答案，请添加。因为我对这个解决方案不太满意。

private void refreshMenuModel() {
        List<MenuElement> elements = this.mainMenu.getElements();
        this.mainMenu = new DefaultMenuModel();
        for (MenuElement menuElement : elements) {
            this.mainMenu.addElement(menuElement);
        }
        generateUniqueIdsMenuModel();
    }


private void generateUniqueIdsMenuModel() {
    this.mainMenu.generateUniqueIds();
}

创建程序菜单（动态）PrimeFaces - 重定向子菜单中的错误

1 个答案: