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easyopen mini版,保留基本签名校验,文档功能。https://gitee.com/durcframework/easyopen
package com.gitee.easyopen.util;
import java.util.Arrays;
import java.util.List;
import com.gitee.easyopen.bean.Pagable;
/**
* @author tanghc
*/
public class ListUtil {
/**
* 对List进行分页
*
* @param list 待分页list
* @param pageIndex 页索引,从1开始
* @param pageSize 每页大小,如果为0,返回原list
* @return 返回结果集
*/
@SuppressWarnings("unchecked")
public static List page(List list, int pageIndex, int pageSize) {
if (pageSize == 0) {
return list;
} else {
// 起始位置
int start = ((pageIndex - 1) * pageSize);
// 总记录数
int total = list.size();
// 剩余长度
int leftLimit = total - start;
// 偏移量
int limit = pageSize > leftLimit ? leftLimit : pageSize;
Pagable[] arr = list.toArray(new Pagable[total]);
Pagable[] newArr = new Pagable[limit];
System.arraycopy(arr, start, newArr, 0, limit);
return (List) Arrays.asList(newArr);
}
}
}