72 lines
1.8 KiB
Java
72 lines
1.8 KiB
Java
package com.youlai.boot.common.result;
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import com.baomidou.mybatisplus.core.metadata.IPage;
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import lombok.Data;
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import java.io.Serializable;
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import java.util.Collections;
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import java.util.List;
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/**
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* 分页响应结构体
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*
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* @author Ray.Hao
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* @since 2022/2/18
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*/
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@Data
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public class PageResult<T> implements Serializable {
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private String code;
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private String msg;
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private PageData<T> data;
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/**
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* 构建分页结果（MyBatis-Plus {@link IPage}）。
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*
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* <p>data 为当前页记录列表；page 提供分页元信息。</p>
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*/
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public static <T> PageResult<T> success(IPage<T> page) {
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PageResult<T> result = new PageResult<>();
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result.setCode(ResultCode.SUCCESS.getCode());
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result.setMsg(ResultCode.SUCCESS.getMsg());
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List<T> records =
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(page == null || page.getRecords() == null)
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? Collections.emptyList()
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: page.getRecords();
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PageData<T> pageData = new PageData<>();
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pageData.setList(records);
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pageData.setTotal(page != null ? page.getTotal() : 0L);
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result.setData(pageData);
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return result;
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}
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/**
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* 构建列表结果（无分页）。
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*
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* <p>page 置为 null，用于与分页返回区分。</p>
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*/
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public static <T> PageResult<T> success(List<T> list) {
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PageResult<T> result = new PageResult<>();
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result.setCode(ResultCode.SUCCESS.getCode());
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result.setMsg(ResultCode.SUCCESS.getMsg());
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PageData<T> pageData = new PageData<>();
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pageData.setList(list != null ? list : Collections.emptyList());
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pageData.setTotal(0L);
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result.setData(pageData);
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return result;
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}
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@Data
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public static class PageData<T> {
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private List<T> list;
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private long total;
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}
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}
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