优化

core/src/main/java/com/mooctest/crowd/domain/repository/PublicationsRepo.java

@@ -39,7 +39,7 @@ public class PublicationsRepo implements IPublicationsRepo{
                 Predicate predicate = cb.conjunction();
                 if(keyword != null) {
                     predicate.getExpressions().add(
-                            cb.like(a.<String>get("longTitle"), "%" + StringUtils.trim(keyword) + "%")
+                            cb.like(a.<String>get("title"), "%" + StringUtils.trim(keyword) + "%")
                     );
                 }
                 return predicate;