发布时间：FreeMarker template error (DEBUG mode; use RETHROW in production!): The following has evaluated to null or missing: ==> article.releaseTime [in template "main/content.html" at line 122, column 24] ---- Tip: It's the step after the last dot that caused this error, not those before it. ---- 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