Liferay 7 Freemarker模板。staticUtil已计算为NULL或丢失-试图获取JournalArticle的类别

Question

<#assign journalArticleId = .vars['reserved-article-id'].data>
<#assign journalArticleResourceLocalServiceUtil = staticUtil["com.liferay.portlet.journal.service.JournalArticleResourceLocalServiceUtil"]>
<#assign assetCategoryLocalServiceUtil = staticUtil["com.liferay.portlet.asset.service.AssetCategoryLocalServiceUtil"]>

<#assign articleResourcePK = journalArticleResourceLocalServiceUtil.getArticleResourcePrimKey(groupId, journalArticleId)/>
<#assign categoryList=assetCategoryLocalServiceUtil.getCategories("com.liferay.portlet.journal.model.JournalArticle",articleResourcePK) >

<#list categoryList as categoryList>
${categoryList.getName()}
</#list>

freemarker.engine.restricted.classes=
freemarker.engine.restricted.variables=
freemarker.engine.restricted.packages=

08:26:30,582 ERROR [http-nio-8080-exec-10][runtime:60] Error executing FreeMarker template
FreeMarker template error:
The following has evaluated to null or missing:
==> staticUtil  [in template "20202#20246#41671" at line 14, column 51]

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Tip: If the failing expression is known to be legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
----

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FTL stack trace ("~" means nesting-related):
        - Failed at: #assign journalArticleResourceLocalSe...  [in template "20202#20246#41671" at line 14, column 1]
----

Java stack trace (for programmers):
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有人知道我在这里做错了什么吗？提前谢谢你。

Answer 1

在liferay 7中，他们已经改变了freemarker引擎的设置，现在Configuration Azion在控制面板中

Control Panel -> Configuration -> System Settings
-> Foundation -> FreeMarker Engine -> Restricted Variables

您必须在这里删除限制变量

在Liferay7中对象的包被更改了，所以在本例中的crecreti freemarker是

<#assign journalArticleId = .vars['reserved-article-id'].data>
<#assign journalArticleResourceLocalServiceUtil = staticUtil["com.liferay.journal.service.JournalArticleResourceLocalServiceUtil"]>
<#assign assetCategoryLocalServiceUtil = staticUtil["com.liferay.asset.kernel.service.AssetCategoryLocalServiceUtil"]>

<#assign articleResourcePK = journalArticleResourceLocalServiceUtil.getArticleResourcePrimKey(groupId, journalArticleId)/>
<#assign categoryList=assetCategoryLocalServiceUtil.getCategories("com.liferay.journal.model.JournalArticle",articleResourcePK) >

<#list categoryList as categoryList>
${categoryList.getName()}
</#list>