74 lines
1.7 KiB
Java
74 lines
1.7 KiB
Java
package com.mcwl.common.utils;
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import cn.hutool.core.collection.CollectionUtil;
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import lombok.AllArgsConstructor;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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import java.io.Serializable;
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import java.util.List;
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import java.util.Objects;
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/**
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* 分页请求实体
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*
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*/
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@AllArgsConstructor
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@NoArgsConstructor
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@Data
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public class RequestPageEntity implements Serializable {
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private static final int DEFAULT_PAGE_SIZE = 10;
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/**
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* 页码，默认从一页开始
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*/
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private Integer pageNo = 1;
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/**
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* 每页大小，默认一页查询10条数据
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*/
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private Integer pageSize = DEFAULT_PAGE_SIZE;
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/**
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* 排序字段
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*/
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private List<String> sortField;
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/**
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* 获取分页开始位置
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*
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* @return 分页开始位置
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*/
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public Integer getPageBegin() {
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if (Objects.isNull(this.pageNo) || this.pageNo <= 0) {
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this.pageNo = 1;
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}
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if (Objects.isNull(this.pageSize)) {
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this.pageSize = DEFAULT_PAGE_SIZE;
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}
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return (this.pageNo - 1) * this.pageSize;
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}
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/**
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* 获取用户自定义排序集合
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*
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* @return 排序集合实体
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*/
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public String getSortString() {
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List<String> sortField = this.getSortField();
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if (CollectionUtil.isEmpty(sortField)) {
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return null;
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}
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StringBuilder sortBuilder = new StringBuilder();
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for (String field : sortField) {
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String[] values = field.split(",");
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sortBuilder.append(String.format("%s %s", values[0], values[1])).append(",");
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}
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return sortBuilder.deleteCharAt(sortBuilder.length() - 1).toString();
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}
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}
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