package com.rongyichuang.common.dto;
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import org.springframework.data.domain.Pageable;
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import org.springframework.data.domain.Sort;
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/**
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* 分页请求DTO
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*/
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public class PageRequest {
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private Integer page = 0;
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private Integer size = 10;
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private String sort;
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private String order = "desc";
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public PageRequest() {}
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public PageRequest(Integer page, Integer size) {
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this.page = page;
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this.size = size;
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}
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/**
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* 转换为Spring Data的Pageable对象
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* 注意：前端页码从1开始，Spring Data页码从0开始，需要转换
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*/
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public Pageable toPageable() {
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Sort sortObj = Sort.unsorted();
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if (sort != null && !sort.isEmpty()) {
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Sort.Direction direction = "asc".equalsIgnoreCase(order) ? Sort.Direction.ASC : Sort.Direction.DESC;
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sortObj = Sort.by(direction, sort);
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}
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// 将前端的1-based页码转换为Spring Data的0-based页码
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int springDataPage = Math.max(0, page - 1);
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return org.springframework.data.domain.PageRequest.of(springDataPage, size, sortObj);
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}
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// Getters and Setters
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public Integer getPage() {
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return page;
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}
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public void setPage(Integer page) {
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this.page = page;
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}
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public Integer getSize() {
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return size;
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}
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public void setSize(Integer size) {
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this.size = size;
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}
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public String getSort() {
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return sort;
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}
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public void setSort(String sort) {
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this.sort = sort;
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}
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public String getOrder() {
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return order;
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}
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public void setOrder(String order) {
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this.order = order;
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}
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}
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