Liferay 以编程方式从 larFile 导入访客布局答案

【问题标题】：Liferay Import Guest layouts from a larFile ProgramaticallyLiferay 以编程方式从 larFile 导入访客布局
【发布时间】：2013-02-08 09:11:34
【问题描述】：

我正在尝试通过在启动挂钩中创建一个扩展 SimpleAction 的类，将一些来宾布局从 larFile（从另一个实例导出）导入到 liferay 实例（可以是已经安装的和配置的，也可以是全新安装） ( ) 然后将“application.startup.events”指向portal-ext.properties 文件中的此类。我希望每次服务器启动时都运行它，因为我的 larFile 版本可能会随着时间而改变。我的代码如下...

File larFile=new File("/Users/grai001/Desktop/default_guest_public_new_light.lar");

//using absolute path for now -need help in accessing the relative path to ${liferay.home}??

Group guestGroup = GroupLocalServiceUtil.getGroup(1, GroupConstants.GUEST);
LayoutLocalServiceUtil.importLayouts(guestGroup.getCreatorUserId(), guestGroup.getGroupId(), false, new HashMap<String,String[]>(), larFile);

//I want them to be a public layouts which are visible to every one even when a user is not logged in - like the default WHAT-WE-DO kind ofpages in liferay6.1 - I am using 6.1GA2 at both ends

这给了我空指针异常，堆栈跟踪如下..

com.liferay.portal.kernel.exception.SystemException: java.lang.NullPointerException
at com.liferay.portal.service.impl.LayoutLocalServiceImpl.importLayouts(LayoutLocalServiceImpl.java:1398)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:122)
at com.liferay.portal.service.impl.LayoutLocalServiceVirtualLayoutsAdvice.invoke(LayoutLocalServiceVirtualLayoutsAdvice.java:197)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.service.impl.LayoutLocalServiceStagingAdvice.invoke(LayoutLocalServiceStagingAdvice.java:107)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:71)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:57)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:57)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:57)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:57)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.security.pacl.PACLAdvice.invoke(PACLAdvice.java:51)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:211)
at $Proxy27.importLayouts(Unknown Source)
at com.liferay.portal.service.LayoutLocalServiceUtil.importLayouts(LayoutLocalServiceUtil.java:1037)
at com.walmart.services.mpportal.liferay.startup.StartupHook.run(StartupHook.java:88)
at com.liferay.portal.events.EventsProcessorImpl.processEvent(EventsProcessorImpl.java:106)
at com.liferay.portal.events.EventsProcessorImpl.process(EventsProcessorImpl.java:58)
at com.liferay.portal.events.EventsProcessorUtil.process(EventsProcessorUtil.java:53)
at com.liferay.portal.util.PortalInstances._initCompany(PortalInstances.java:462)
at com.liferay.portal.util.PortalInstances.initCompany(PortalInstances.java:92)
at com.liferay.portal.servlet.MainServlet.initCompanies(MainServlet.java:798)
at com.liferay.portal.servlet.MainServlet.init(MainServlet.java:355)
at javax.servlet.GenericServlet.init(GenericServlet.java:160)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1266)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1185)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1080)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5015)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5302)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:895)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:871)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:615)
at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:649)
at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1585)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:680)
Caused by: java.lang.NullPointerException
at com.liferay.portal.kernel.util.ParamUtil.getLong(ParamUtil.java:616)
at com.liferay.portal.service.impl.LayoutLocalServiceStagingAdvice.deleteLayout(LayoutLocalServiceStagingAdvice.java:70)
at com.liferay.portal.service.impl.LayoutLocalServiceStagingAdvice.invoke(LayoutLocalServiceStagingAdvice.java:113)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:71)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:57)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:57)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:57)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:57)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.security.pacl.PACLAdvice.invoke(PACLAdvice.java:51)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:118)
at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:211)
at $Proxy27.deleteLayout(Unknown Source)
at com.liferay.portal.service.LayoutLocalServiceUtil.deleteLayout(LayoutLocalServiceUtil.java:435)
at com.liferay.portal.lar.LayoutImporter.deleteMissingLayouts(LayoutImporter.java:196)
at com.liferay.portal.lar.LayoutImporter.doImportLayouts(LayoutImporter.java:774)
at com.liferay.portal.lar.LayoutImporter.importLayouts(LayoutImporter.java:147)
at com.liferay.portal.service.impl.LayoutLocalServiceImpl.importLayouts(LayoutLocalServiceImpl.java:1382)
... 50 more

现在正在做LayoutLocalServiceUtil.importLayouts(guestGroup.getCreatorUserId(), guestGroup.getGroupId(), true, new HashMap<String,String[]>(), larFile); 即...将它们作为私有布局导入工作正常 - 不幸的是，我希望它们公开并且对每个人都可见。还以门户管理员身份登录和从 UI 作为公共布局导入运行良好。我希望如何以自动化的方式完成此操作。

在过去 1 周内尝试解决我的这个问题 - 进行了足够的研究 - 但仍然无法解决。任何形式的帮助表示赞赏..！

提前致谢

【问题讨论】：

您可能想要检查根本原因堆栈跟踪（因为它会泄露实际的 NullpointerException 位置）或调试此过程。如果你有一个钩子，你很可能可以在调试器中运行它——将 Liferay 源代码添加到它，并在你点击导入例程（断点）时在 NullpointerException 上设置一个异常断点。这会给你一些想法，看看其他地方。
您必须按照 Olaf Kock 的建议调试 NullPonterException。在 LayoutLocalServiceUtil.importLayouts(guestGroup.getCreatorUserId(), guestGroup.getGroupId(), true, new HashMap(), larFile);将第三个参数传递为 false 以导入公共。
几天前终于可以远程调试了。问题出在一些参数上（不完全记得它们）我用 paramsMap 传递。
您找到解决方案了吗？我有类似的问题。

标签： liferay

【解决方案1】：

public void larTest()  {

    LiferayFacesContext liferayFacesContext = LiferayFacesContext
            .getInstance();
    ActionRequest request = (ActionRequest) liferayFacesContext
            .getPortletRequest();
    ThemeDisplay td = (ThemeDisplay) request
            .getAttribute(WebKeys.THEME_DISPLAY);
    long userId = td.getUserId();
    long groupId = td.getScopeGroupId();

    File larFile=new File("C:\\Users\\youssef\\dahar\\Downloads\\ok.lar");

    //using absolute path for now -need help in accessing the relative path to ${liferay.home}??

    Group guestGroup = null;
    try {
        guestGroup = GroupLocalServiceUtil.getGroup(groupId);
    } catch (Exception e) {
        System.out.println("catch 1");
        e.printStackTrace();
    }
    try {
        LayoutLocalServiceUtil.importLayouts(guestGroup.getCreatorUserId(), guestGroup.getGroupId(), false, new HashMap<String,String[]>(), larFile);
    } catch (PortalException e) {
        System.out.println("catch 2");
        e.printStackTrace();
    } catch (SystemException e) {
        System.out.println("catch 3");
        e.printStackTrace();
    }

    //I want them to be a public layouts which are visible to every one even when a user is not logged in - like the default WHAT-WE-DO kind ofpages in liferay6.1 - I am using 6.1GA2 at both ends


}

也许可以帮到你这个功能它有时对我有用，有时对我有用:)

【讨论】：