HTTP Status 500 - tag 'select', field 'list', name 'category.id': The requested list key 'categories' could not be resolved as a collection/array/map/enumeration/iterator type. Example: people or people.{name} - [unknown location]
https://hocdelamduocviec.blogspot.com/2014/04/http-status-500-tag-select-field-list.html
Nguyên nhân: do chưa tạo các hàm getter, setter trong class Category(categories là List<Category>).HTTP Status 500 - tag 'select', field 'list', name 'category.id': The requested list key 'categories' could not be resolved as a collection/array/map/enumeration/iterator type. Example: people or people.{name} - [unknown location]
Chỉ cần thêm các hàm getter, setter vào trong class Category là được.
