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/**
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* Copyright 2013-2015 JueYue (qrb.jueyue@gmail.com)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package cn.afterturn.easypoi.excel;
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import java.util.Collection;
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import java.util.List;
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import java.util.Map;
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import org.apache.poi.hssf.usermodel.HSSFWorkbook;
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import org.apache.poi.ss.usermodel.Workbook;
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import org.apache.poi.xssf.streaming.SXSSFWorkbook;
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import org.apache.poi.xssf.usermodel.XSSFWorkbook;
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import cn.afterturn.easypoi.excel.entity.ExportParams;
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import cn.afterturn.easypoi.excel.entity.TemplateExportParams;
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import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
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import cn.afterturn.easypoi.excel.entity.params.ExcelExportEntity;
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import cn.afterturn.easypoi.excel.export.ExcelBatchExportService;
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import cn.afterturn.easypoi.excel.export.ExcelExportService;
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import cn.afterturn.easypoi.excel.export.template.ExcelExportOfTemplateUtil;
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/**
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* excel 导出工具类
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*
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* @author JueYue
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* @version 1.0
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* 2013-10-17
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*/
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public class ExcelExportUtil {
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private ExcelExportUtil() {
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}
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/**
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* @param entity
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* 表格标题属性
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* @param pojoClass
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* Excel对象Class
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* @param dataSet
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* Excel对象数据List
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*/
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public static Workbook exportBigExcel(ExportParams entity, Class<?> pojoClass,
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Collection<?> dataSet) {
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ExcelBatchExportService batchService = ExcelBatchExportService
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.getExcelBatchExportService(entity, pojoClass);
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return batchService.appendData(dataSet);
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}
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public static Workbook exportBigExcel(ExportParams entity, List<ExcelExportEntity> excelParams,
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Collection<?> dataSet) {
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ExcelBatchExportService batchService = ExcelBatchExportService
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.getExcelBatchExportService(entity, excelParams);
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return batchService.appendData(dataSet);
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}
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public static void closeExportBigExcel() {
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ExcelBatchExportService batchService = ExcelBatchExportService.getCurrentExcelBatchExportService();
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if(batchService != null) {
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batchService.closeExportBigExcel();
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}
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}
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/**
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* @param entity
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* 表格标题属性
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* @param pojoClass
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* Excel对象Class
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* @param dataSet
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* Excel对象数据List
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*/
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public static Workbook exportExcel(ExportParams entity, Class<?> pojoClass,
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Collection<?> dataSet) {
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Workbook workbook = getWorkbook(entity.getType(),dataSet.size());
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new ExcelExportService().createSheet(workbook, entity, pojoClass, dataSet);
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return workbook;
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}
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private static Workbook getWorkbook(ExcelType type, int size) {
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if (ExcelType.HSSF.equals(type)) {
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return new HSSFWorkbook();
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} else if (size < 100000) {
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return new XSSFWorkbook();
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} else {
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return new SXSSFWorkbook();
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}
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}
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/**
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* 根据Map创建对应的Excel
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* @param entity
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* 表格标题属性
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* @param entityList
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* Map对象列表
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* @param dataSet
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* Excel对象数据List
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*/
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public static Workbook exportExcel(ExportParams entity, List<ExcelExportEntity> entityList,
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Collection<?> dataSet) {
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Workbook workbook = getWorkbook(entity.getType(),dataSet.size());;
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new ExcelExportService().createSheetForMap(workbook, entity, entityList, dataSet);
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return workbook;
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}
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/**
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* 一个excel 创建多个sheet
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*
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* @param list
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* 多个Map key title 对应表格Title key entity 对应表格对应实体 key data
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* Collection 数据
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* @return
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*/
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public static Workbook exportExcel(List<Map<String, Object>> list, ExcelType type) {
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Workbook workbook = getWorkbook(type,0);
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for (Map<String, Object> map : list) {
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ExcelExportService service = new ExcelExportService();
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service.createSheet(workbook, (ExportParams) map.get("title"),
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(Class<?>) map.get("entity"), (Collection<?>) map.get("data"));
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}
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return workbook;
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}
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/**
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* 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
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*
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* @param params
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* 导出参数类
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* @param pojoClass
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* 对应实体
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* @param dataSet
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* 实体集合
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* @param map
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* 模板集合
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* @return
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*/
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@Deprecated
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public static Workbook exportExcel(TemplateExportParams params, Class<?> pojoClass,
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Collection<?> dataSet, Map<String, Object> map) {
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return new ExcelExportOfTemplateUtil().createExcleByTemplate(params, pojoClass, dataSet,
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map);
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}
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/**
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* 导出文件通过模板解析只有模板,没有集合
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*
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* @param params
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* 导出参数类
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* @param map
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* 模板集合
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* @return
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*/
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public static Workbook exportExcel(TemplateExportParams params, Map<String, Object> map) {
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return new ExcelExportOfTemplateUtil().createExcleByTemplate(params, null, null, map);
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}
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/**
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* 导出文件通过模板解析只有模板,没有集合
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* 每个sheet对应一个map,导出到处,key是sheet的NUM
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* @param params
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* 导出参数类
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* @param map
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* 模板集合
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* @return
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*/
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public static Workbook exportExcel(Map<Integer, Map<String, Object>> map,
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TemplateExportParams params) {
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return new ExcelExportOfTemplateUtil().createExcleByTemplate(params, map);
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}
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}
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