Liferay 7 自由标记模板。 staticUtil 评估为 NULL 或缺失 - 试图获取 JournalArticle 的类别

Question

嗨，Liferay 的同胞们，

我正在尝试使用 Freemarker 模板获取 journalArticle 的类别。

我试过这段代码：

<#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>

我还将此行添加到 portal-setup-wizzard.properties

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

当我执行代码时它抛出这个错误：

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]

----
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)??
----

----
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):
----

有没有人知道我在这里做错了什么？提前谢谢你。

Answer 1

在 liferay 7 中，他们更改了 freemarker 引擎的设置，现在配置在控制面板中

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

你必须在这里删除限制变量

对象的包在 liferay 7 中发生了变化，所以在这种情况下更正的自由标记是

<#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>

Liferay 7 自由标记模板。 staticUtil 评估为 NULL 或缺失 - 试图获取 JournalArticle 的类别

Liferay 7 Freemarker Template. staticUtil has evaluated to NULL or missing - Tried to get JournalArticle's Categories

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