处理模板时发生错误。 
         
          
           
         
        
       Java method "com.sun.proxy.$Proxy747.getArticle(long, String)" threw an exception when invoked on com.sun.proxy.$Proxy747 object "com.liferay.journal.service.impl.JournalArticleLocalServiceImpl@7c72bf66"; see cause exception in the Java stack trace.
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FTL stack trace ("~" means nesting-related):
	- Failed at: #assign journalArticle = JournalArtic...  [in template "83400193686067#20119#48805" at line 17, column 1]
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         1<#if themeDisplay?has_content> 
           2<#assign 
           3    ddmFieldLocalService=serviceLocator.findService("com.liferay.dynamic.data.mapping.service.DDMFieldLocalService") /> 
           4<#assign 
           5    JournalArticleLocalService=serviceLocator.findService("com.liferay.journal.service.JournalArticleLocalService") /> 
           6<#assign AssetEntryLocalService=serviceLocator.findService("com.liferay.asset.kernel.service.AssetEntryLocalService") /> 
           7<#assign 
           8    AssetEntryAssetCategoryRel=serviceLocator.findService("com.liferay.asset.entry.rel.service.AssetEntryAssetCategoryRelLocalService") /> 
           9<#assign 
           10    AssetVocabularyLocalService=serviceLocator.findService("com.liferay.asset.kernel.service.AssetVocabularyLocalService") /> 
           11<#assign 
           12    AssetCategoryLocalService=serviceLocator.findService("com.liferay.asset.kernel.service.AssetCategoryLocalService") /> 
           13<#assign url="${themeDisplay.getURLCurrent()}"> 
           14    <#assign lastIndex=url?last_index_of("=") /> 
           15<#assign articleId = url?substring(lastIndex+1) /> 
           16<#assign scopeGroupId = themeDisplay.getScopeGroupId() /> 
           17<#assign journalArticle = JournalArticleLocalService.getArticle(scopeGroupId, articleId) /> 
           18 
           19	<#assign articleIdLong = journalArticle.getId() /> 
           20	 
           21	<div class=""> 
           22		<@liferay_journal["journal-article"] 
           23                       articleId=articleId 
           24                       ddmTemplateKey="45777" 
           25                       groupId=journalArticle.getGroupId() 
           26                       /> 
           27	</div> 
           28								     
           29	 
           30	<#assign instanceId = themeDisplay.getPortletDisplay().getInstanceId() />  
           31<#assign	ddmFormStructure = journalArticle.getDDMStructure() 
           32				 ddmForm = ddmFormStructure.getDDMForm() 
           33				 /> 
           34  <#assign ddmFormValues = ddmFieldLocalService.getDDMFormValues(ddmForm, articleIdLong) 
           35				 ddmFormFieldValues = ddmFormValues.getDDMFormFieldValues() 
           36				 />        
           37        </#if> 
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