[出错了，请联系网站管理员] freemarker.core.InvalidReferenceException: The following has evaluated to null or missing: ==> viewNewsData [in template "tpl/html/20240507/1379030104276993/displaynews.html" at line 31, column 30] ---- Tip: If the failing expression is known to 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. (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: #function getTextContent(propertyText... [in template "public_include/function.html" in function "getTextContent" at line 159, column 1] - Reached through: ${getTextContent(viewNewsData.article... [in template "tpl/html/20240507/1379030104276993/displaynews.html" at line 31, column 13] ----