Spring分页不起作用

Question

Controller :

@RestController
@RequestMapping("/api")
public class TestResource {

    @RequestMapping(value="/test",
        method = RequestMethod.GET,
        produces = MediaType.APPLICATION_JSON_VALUE)
    public ResponseEntity<List<Integer>> test(Pageable pageable) {
        List<Integer> init = new ArrayList<>(Arrays.asList(new Integer[]{1,2,3,4,5,6,7,8,9,10}));
        return ResponseEntity.ok(new PageImpl<>(init, pageable, init.size()).getContent());
    }
}

请求/api/test?page=1&size=2返回整个初始化列表(从1到10)。
来自日志:

Enter: com.test.rest.TestResource.test() with argument[s] = [Page request [number: 1, size 2, sort: null]]

如何让它发挥作用？

Answer 1

据我了解，Page 仅适用于存储库，因此我找到了解决方案:

使用org.springframework.beans.support.PagedListHolder

public ResponseEntity<List<Integer>> getIntegers(Pageable pageable) {
    List<Integer> init = new ArrayList<>(Arrays.asList(new Integer[]{1,2,3,4,5,6,7,8,9,10}));
    PagedListHolder<Integer> holder = new PagedListHolder<>(init);
    holder.setPage(pageable.getPageNumber());
    holder.setPageSize(pageable.getPageSize());
    return ResponseEntity.ok(holder.getPageList());
}

请求/api/test?page=1&size=2返回[3,4]