Q:

Load data in cache with java

I´m a little lost with a problem. I need to save in cache a list of data which I query from the Database. The list is very big and when it loads in a combobox isn´t optim. Any ideas about this?
My code is:

Controller:
model.addAttribute(LISTA_LUGARES,lugarService.findLugaresByIdMunicipio(documentacionDTO.getIdMunicipio()));

Service:
public List<Lugar> findLugaresByIdMunicipio(Long idMunicipio) {
    return this.lugarRepository.findLugaresByIdMunicipio(idMunicipio);
}

Repository:
@Query("from Lugar l where l.municipio.id = :idMunicipio order by l.nombre asc")
List<Lugar> findLugaresByIdMunicipio(@Param("idMunicipio") Long idMunicipio);

HTML:
 <select
    id="lugar" th:field="*{idLugar}" class="form-control">
    <option th:each="type : ${lugar}" th:value="${type.id}"
    th:text="#{${type.nombre}}">opciones</option>
    </select>

A:

You can use something like EhCache to set the query as @Cacheable, this will  indicate that the result of invoking a method (or all methods in a class) can be cached. 
Each time an advised method is invoked, the caching behavior will be applied, checking whether the method was already invoked for the given arguments:
Here's an example

