cn.afterturn.easypoi.excel.ExcelExportUtil Maven / Gradle / Ivy
/**
* Copyright 2013-2015 JueYue ([email protected])
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cn.afterturn.easypoi.excel;
import cn.afterturn.easypoi.excel.entity.ExportParams;
import cn.afterturn.easypoi.excel.entity.TemplateExportParams;
import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
import cn.afterturn.easypoi.excel.entity.params.ExcelExportEntity;
import cn.afterturn.easypoi.excel.export.ExcelBatchExportService;
import cn.afterturn.easypoi.excel.export.ExcelExportService;
import cn.afterturn.easypoi.excel.export.template.ExcelExportOfTemplateUtil;
import cn.afterturn.easypoi.handler.inter.IExcelExportServer;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.streaming.SXSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import java.util.Collection;
import java.util.List;
import java.util.Map;
/**
* excel 导出工具类
*
* @author JueYue
* @version 1.0
* 2013-10-17
*/
public final class ExcelExportUtil {
public static int USE_SXSSF_LIMIT = 100000;
public static final String SHEET_NAME = "sheetName";
private ExcelExportUtil() {
}
/**
* 大数据量导出
*
* @param entity 表格标题属性
* @param pojoClass Excel对象Class
* @param server 查询数据的接口
* @param queryParams 查询数据的参数
*/
public static Workbook exportBigExcel(ExportParams entity, Class pojoClass,
IExcelExportServer server, Object queryParams) {
ExcelBatchExportService batchServer = new ExcelBatchExportService();
batchServer.init(entity, pojoClass);
return batchServer.exportBigExcel(server, queryParams);
}
/**
* 大数据量导出
*
* @param entity
* @param excelParams
* @param server 查询数据的接口
* @param queryParams 查询数据的参数
* @return
*/
public static Workbook exportBigExcel(ExportParams entity, List excelParams,
IExcelExportServer server, Object queryParams) {
ExcelBatchExportService batchServer = new ExcelBatchExportService();
batchServer.init(entity, excelParams);
return batchServer.exportBigExcel(server, queryParams);
}
/**
* @param entity 表格标题属性
* @param pojoClass Excel对象Class
* @param dataSet Excel对象数据List
*/
public static Workbook exportExcel(ExportParams entity, Class pojoClass,
Collection dataSet) {
Workbook workbook = getWorkbook(entity.getType(), dataSet.size());
new ExcelExportService().createSheet(workbook, entity, pojoClass, dataSet);
return workbook;
}
private static Workbook getWorkbook(ExcelType type, int size) {
if (ExcelType.HSSF.equals(type)) {
return new HSSFWorkbook();
} else if (size < USE_SXSSF_LIMIT) {
return new XSSFWorkbook();
} else {
return new SXSSFWorkbook();
}
}
/**
* 根据Map创建对应的Excel
*
* @param entity 表格标题属性
* @param entityList Map对象列表
* @param dataSet Excel对象数据List
*/
public static Workbook exportExcel(ExportParams entity, List entityList,
Collection dataSet) {
Workbook workbook = getWorkbook(entity.getType(), dataSet.size());
;
new ExcelExportService().createSheetForMap(workbook, entity, entityList, dataSet);
return workbook;
}
/**
* 根据Map创建对应的Excel(一个excel 创建多个sheet)
*
* @param list 多个Map key title 对应表格Title key entity 对应表格对应实体 key data
* Collection 数据
* @return
*/
public static Workbook exportExcel(List> list, ExcelType type) {
Workbook workbook = getWorkbook(type, 0);
for (Map map : list) {
ExcelExportService service = new ExcelExportService();
service.createSheet(workbook, (ExportParams) map.get("title"),
(Class) map.get("entity"), (Collection) map.get("data"));
}
return workbook;
}
/**
* 导出文件通过模板解析,不推荐这个了,推荐全部通过模板来执行处理
*
* @param params 导出参数类
* @param pojoClass 对应实体
* @param dataSet 实体集合
* @param map 模板集合
* @return
*/
@Deprecated
public static Workbook exportExcel(TemplateExportParams params, Class pojoClass,
Collection dataSet, Map map) {
return new ExcelExportOfTemplateUtil().createExcelByTemplate(params, pojoClass, dataSet,
map);
}
/**
* 导出文件通过模板解析只有模板,没有集合
*
* @param params 导出参数类
* @param map 模板集合
* @return
*/
public static Workbook exportExcel(TemplateExportParams params, Map map) {
return new ExcelExportOfTemplateUtil().createExcelByTemplate(params, null, null, map);
}
/**
* 导出文件通过模板解析只有模板,没有集合
* 每个sheet对应一个map,导出到处,key是sheet的NUM
*
* @param params 导出参数类
* @param map 模板集合
* @return
*/
public static Workbook exportExcel(Map> map,
TemplateExportParams params) {
return new ExcelExportOfTemplateUtil().createExcelByTemplate(params, map);
}
/**
* 导出文件通过模板解析只有模板,没有集合
* 每个sheet对应一个list,按照数量进行导出排序,key是sheet的NUM
*
* @param params 导出参数类
* @param map 模板集合
* @return
*/
public static Workbook exportExcelClone(Map>> map,
TemplateExportParams params) {
return new ExcelExportOfTemplateUtil().createExcelCloneByTemplate(params, map);
}
}