Controller 구성import org.springframework.web.bind.annotation.*;import org.springframework.ui.Model;import java.util.List;import java.util.stream.Collectors;@RestController@RequestMapping("/example")public class ExampleController { private List items = List.of( new Item(1, "Item 1", 5), new Item(2, "Item 2", 0), new Item(3, "Item 3", 10) ); @GetMapping("/filter") p..