Spring Boot \uc758 JPA Paging \uc744 \uc704\ud55c \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n
\uc791\ub3d9\uac00\ub2a5\ud55c \ucf54\ub4dc\ub97c \ubaa9\uc801\uc73c\ub85c \ud558\uc9c0 \uc54a\uace0,
\n\uae30\ubcf8 \uc6d0\ub9ac\ub97c \uc815\ub9ac\ud558\ub294 \uac83\uc744 \ubaa9\uc801\uc73c\ub85c \ud569\ub2c8\ub2e4.<\/p>\n
\uc544\ub798 \ucf54\ub4dc\ub294 DB \uc811\uc18d API \uc11c\ubc84\uc640 \uc0ac\uc6a9\uc790 \uc694\uccad\uc744 \ubc1b\ub294 \uc11c\ubc84\uac00 \ubd84\ub9ac\ub41c \uac83\uc744 \uac00\uc815\ud569\ub2c8\ub2e4.<\/p>\n
MapStruct \ub4f1\uc744 \uc774\uc6a9\ud574 DTO \ub85c \ubcc0\ud658\ud569\ub2c8\ub2e4.<\/p>\n DB \uc811\uc18d API \uc11c\ubc84\uc640 \uc0ac\uc6a9\uc790 \uc694\uccad\uc744 \ubc1b\ub294 \uc11c\ubc84\uac00 \ubd84\ub9ac\ub41c \uc0c1\ud0dc\ub77c, Spring Boot – JPA Paging Spring Boot \uc758 JPA Paging \uc744 \uc704\ud55c \ubc29\ubc95\uc744 \uc124\uba85\ud569\ub2c8\ub2e4. \uc791\ub3d9\uac00\ub2a5\ud55c \ucf54\ub4dc\ub97c \ubaa9\uc801\uc73c\ub85c \ud558\uc9c0 \uc54a\uace0, \uae30\ubcf8 \uc6d0\ub9ac\ub97c \uc815\ub9ac\ud558\ub294 \uac83\uc744 \ubaa9\uc801\uc73c\ub85c \ud569\ub2c8\ub2e4. \uc544\ub798 \ucf54\ub4dc\ub294 DB \uc811\uc18d API \uc11c\ubc84\uc640 \uc0ac\uc6a9\uc790 \uc694\uccad\uc744 \ubc1b\ub294 \uc11c\ubc84\uac00 \ubd84\ub9ac\ub41c \uac83\uc744 \uac00\uc815\ud569\ub2c8\ub2e4. Repository Page<Entity> \ub97c \ub9ac\ud134\ubc1b\uc2b5\ub2c8\ub2e4. public interface CompanyRepositoryCustom { Page<Company> search(SearchCompanyRequestDto dto); } Service MapStruct \ub4f1\uc744 \uc774\uc6a9\ud574 DTO\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"class_list":["post-7560","post","type-post","status-publish","format-standard","hentry","category-spring-boot-2-5"],"_links":{"self":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7560","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7560"}],"version-history":[{"count":4,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7560\/revisions"}],"predecessor-version":[{"id":7567,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7560\/revisions\/7567"}],"wp:attachment":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7560"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7560"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7560"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Page<Entity><\/code> \ub97c \ub9ac\ud134\ubc1b\uc2b5\ub2c8\ub2e4.<\/p>\npublic interface CompanyRepositoryCustom {\n Page<Company> search(SearchCompanyRequestDto dto);\n}<\/code><\/pre>\nService<\/h2>\n
@Service\n@RequiredArgsConstructor\npublic class CompanyService {\n public ResponseEntity<?> search(SearchCompanyRequestDto dto) {\n Page<CompanyDto> dtos = repository.search(dto).map(converter::toDto);\n return ResponseEntity.ok(new ApiResponseWithData(ResponseCode.OK, dtos));\n }\n}<\/code><\/pre>\nController<\/h2>\n
Page<DTO><\/code> \ub97c \ub9ac\ud134\ud574 \uc90d\ub2c8\ub2e4.<\/p>\n@RestController\n@RequiredArgsConstructor\n@RequestMapping("\/v1\/account")\npublic class CompanyController {\n @PostMapping("\/search")\n public ResponseEntity<?> search(@RequestBody SearchCompanyRequestDto dto) {\n return service.search(dto);\n }\n}<\/code><\/pre>\n\uc758\uc874\uc131 \ucd94\uac00<\/h2>\n
\n\uc758\uc874\uc131\uc744 \ucd94\uac00\ub85c \ub123\uc5b4 \uc918\uc57c \ud569\ub2c8\ub2e4.<\/p>\ndependencies {\n implementation 'org.springframework.boot:spring-boot-starter-data-jpa'\n}<\/code><\/pre>\n@SpringBootApplication(exclude = {\n DataSourceAutoConfiguration.class,\n DataSourceTransactionManagerAutoConfiguration.class,\n HibernateJpaAutoConfiguration.class\n})\npublic class WarehousewebApplication {\n public static void main(String[] args) {\n SpringApplication.run(WarehousewebApplication.class, args);\n }\n}<\/code><\/pre>\n\ucee4\uc2a4\ud140 \ub9e4\ud37c \uc0dd\uc131<\/h2>\n
import org.springframework.data.domain.Page;\n\npublic class PageModule extends SimpleModule {\n public PageModule() {\n addDeserializer(Page.class, new PageDeserializer());\n }\n}<\/code><\/pre>\npublic class PageDeserializer extends JsonDeserializer<Page<?>> implements ContextualDeserializer {\n private static final String CONTENT = "content";\n private static final String NUMBER = "number";\n private static final String SIZE = "size";\n private static final String TOTAL_ELEMENTS = "totalElements";\n private JavaType valueType;\n\n @Override\n public Page<?> deserialize(JsonParser p, DeserializationContext ctxt) throws IOException {\n final CollectionType valuesListType = ctxt.getTypeFactory().constructCollectionType(List.class, valueType);\n\n List<?> list = new ArrayList<>();\n int pageNumber = 0;\n int pageSize = 0;\n long total = 0;\n if (p.isExpectedStartObjectToken()) {\n p.nextToken();\n if (p.hasTokenId(JsonTokenId.ID_FIELD_NAME)) {\n String propName = p.getCurrentName();\n do {\n p.nextToken();\n switch (propName) {\n case CONTENT:\n list = ctxt.readValue(p, valuesListType);\n break;\n case NUMBER:\n pageNumber = ctxt.readValue(p, Integer.class);\n break;\n case SIZE:\n pageSize = ctxt.readValue(p, Integer.class);\n break;\n case TOTAL_ELEMENTS:\n total = ctxt.readValue(p, Long.class);\n break;\n default:\n p.skipChildren();\n break;\n }\n } while (((propName = p.nextFieldName())) != null);\n } else {\n ctxt.handleUnexpectedToken(handledType(), p);\n }\n } else {\n ctxt.handleUnexpectedToken(handledType(), p);\n }\n\n return new PageImpl<>(list, PageRequest.of(pageNumber, pageSize), total);\n }\n\n @Override\n public JsonDeserializer<?> createContextual(DeserializationContext ctxt, BeanProperty property) {\n final JavaType wrapperType = ctxt.getContextualType();\n final PageDeserializer deserializer = new PageDeserializer();\n deserializer.valueType = wrapperType.containedType(0);\n return deserializer;\n }\n}<\/code><\/pre>\nFeign Service<\/h2>\n
@FeignClient(name = "COMPANY-SERVICE",configuration = {FeignClientConfig.class, FeignRetryConfig.class}, url = "${api-server.url}:${api-server.port}")\npublic interface ApiCompanyService {\n @PostMapping("\/v1\/account\/search")\n ApiResponseWithData search(\n @RequestBody SearchCompanyRequestDto req\n );\n}<\/code><\/pre>\nService<\/h2>\n
@Service\n@RequiredArgsConstructor\npublic class CompanyService {\n\n private final ApiCompanyService apiCompanyService;\n\n public Page<SearchCompanyResponseDto> search(SearchCompanyRequestDto req) {\n ApiResponseWithData apiResponseWithData = apiCompanyService.search(req);\n\n ObjectMapper mapper = new ObjectMapper();\n mapper.registerModule(new PageModule());\n mapper.registerModule(new JavaTimeModule());\n\n return mapper.convertValue(apiResponseWithData.getData(), new TypeReference<>() {});\n }\n}<\/code><\/pre>\nController<\/h2>\n
Page<DTO><\/code> \ub97c \ubcc0\ud658\ud569\ub2c8\ub2e4.<\/p>\n@Controller\npublic class CompanyIndexController {\n @GetMapping("\/admin\/company\/")\n public String search(HttpServletRequest request, ModelMap model, @ModelAttribute SearchCompanyRequestDto req) {\n Page<SearchCompanyResponseDto> searchCompanyResponseDtoPage = service.search(req);\n\n model.addAttribute("list", searchCompanyResponseDtoPage.toList());\n model.addAttribute("req", req);\n model.addAttribute("currentPage", req.getPageNo());\n model.addAttribute("maxPage", searchCompanyResponseDtoPage.getTotalPages());\n\n return "\/admin\/company";\n }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"