25 lines
688 B
Java
25 lines
688 B
Java
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package com.pukka.jiecheng.utils;
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public class PageNumberUtil {
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/**
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* 计算总页数
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* */
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public static int calculateTotalPages(int totalItems, int pageSize) {
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if (totalItems <= 0) {
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return 0; // 没有数据时返回0页
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}
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if (pageSize <= 0) {
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throw new IllegalArgumentException("每页大小必须大于0");
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}
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return (totalItems - 1) / pageSize + 1;
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}
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/**
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* 计算当前页数
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* @param position 当前position
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* @param itemsPerPage 每页项数
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* */
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public static int calculatePage(int position, int itemsPerPage) {
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return (position / itemsPerPage) + 1;
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}
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}
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