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add 增加分页工具

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疯狂的狮子li
2021-05-13 21:22:51 +08:00
parent 685504e1d0
commit 9f5a03edcd
3 changed files with 232 additions and 2 deletions
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ruoyi-common/src/main/java/com/ruoyi/common/utils/PageUtils.java Normal file
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package com.ruoyi.common.utils;
import cn.hutool.core.util.StrUtil;
import cn.hutool.http.HttpStatus;
import com.baomidou.mybatisplus.core.metadata.OrderItem;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.ruoyi.common.core.page.PagePlus;
import com.ruoyi.common.core.page.TableDataInfo;
import com.ruoyi.common.utils.sql.SqlUtil;
import java.util.List;
/**
* 分页工具
*
* @author Lion Li
*/
public class PageUtils {
/**
* 当前记录起始索引
*/
public static final String PAGE_NUM = "pageNum";
/**
* 每页显示记录数
*/
public static final String PAGE_SIZE = "pageSize";
/**
* 排序列
*/
public static final String ORDER_BY_COLUMN = "orderByColumn";
/**
* 排序的方向 "desc" 或者 "asc".
*/
public static final String IS_ASC = "isAsc";
public static <T, K> PagePlus<T, K> buildPagePlus() {
Integer pageNum = ServletUtils.getParameterToInt(PAGE_NUM);
Integer pageSize = ServletUtils.getParameterToInt(PAGE_SIZE);
String orderByColumn = ServletUtils.getParameter(ORDER_BY_COLUMN);
String isAsc = ServletUtils.getParameter(IS_ASC);
PagePlus<T, K> page = new PagePlus<>(pageNum, pageSize);
if (StrUtil.isNotBlank(orderByColumn)) {
String orderBy = SqlUtil.escapeOrderBySql(orderByColumn);
if ("asc".equals(isAsc)) {
page.addOrder(OrderItem.asc(orderBy));
} else if ("desc".equals(isAsc)) {
page.addOrder(OrderItem.desc(orderBy));
}
}
return page;
}
public static <T> Page<T> buildPage() {
Integer pageNum = ServletUtils.getParameterToInt(PAGE_NUM);
Integer pageSize = ServletUtils.getParameterToInt(PAGE_SIZE);
String orderByColumn = ServletUtils.getParameter(ORDER_BY_COLUMN);
String isAsc = ServletUtils.getParameter(IS_ASC);
Page<T> page = new Page<>(pageNum, pageSize);
if (StrUtil.isNotBlank(orderByColumn)) {
String orderBy = SqlUtil.escapeOrderBySql(orderByColumn);
if ("asc".equals(isAsc)) {
page.addOrder(OrderItem.asc(orderBy));
} else if ("desc".equals(isAsc)) {
page.addOrder(OrderItem.desc(orderBy));
}
}
return page;
}
public static <T, K> TableDataInfo<K> buildDataInfo(PagePlus<T, K> page) {
TableDataInfo<K> rspData = new TableDataInfo<>();
rspData.setCode(HttpStatus.HTTP_OK);
rspData.setMsg("查询成功");
rspData.setRows(page.getRecordsVo());
rspData.setTotal(page.getTotal());
return rspData;
}
public static <T> TableDataInfo<T> buildDataInfo(Page<T> page) {
TableDataInfo<T> rspData = new TableDataInfo<>();
rspData.setCode(HttpStatus.HTTP_OK);
rspData.setMsg("查询成功");
rspData.setRows(page.getRecords());
rspData.setTotal(page.getTotal());
return rspData;
}
public static <T> TableDataInfo<T> buildDataInfo(List<T> list) {
TableDataInfo<T> rspData = new TableDataInfo<>();
rspData.setCode(HttpStatus.HTTP_OK);
rspData.setMsg("查询成功");
rspData.setRows(list);
rspData.setTotal(list.size());
return rspData;
}
}