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package com.xdadan.erp.emis.service.billexport;
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import com.alibaba.excel.metadata.Head;
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import com.alibaba.excel.write.handler.CellWriteHandler;
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import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
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import com.alibaba.excel.write.metadata.holder.WriteTableHolder;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.Row;
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import org.apache.poi.ss.usermodel.Sheet;
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import org.apache.poi.ss.util.CellRangeAddress;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* 列合并工具类
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*
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* @author DaiHaijiao
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*/
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public class ExcelFillCellMergePrevColUtils implements CellWriteHandler {
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private static final String KEY = "%s-%s";
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//所有的合并信息都存在了这个map里面
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Map<String, Integer> mergeInfo = new HashMap<>();
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public ExcelFillCellMergePrevColUtils() {
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}
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@Override
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public void beforeCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Row row, Head head, Integer integer, Integer integer1, Boolean aBoolean) {
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}
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@Override
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public void afterCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Cell cell, Head head, Integer integer, Boolean aBoolean) {
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}
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// @Override
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// public void afterCellDataConverted(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, CellData cellData, Cell cell, Head head, Integer integer, Boolean aBoolean) {
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//
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// }
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//
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// @Override
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// public void afterCellDispose(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, List<CellData> list, Cell cell, Head head, Integer integer, Boolean aBoolean) {
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// //当前行
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// int curRowIndex = cell.getRowIndex();
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// //当前列
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// int curColIndex = cell.getColumnIndex();
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//
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// Integer num = mergeInfo.get(String.format(KEY, curRowIndex, curColIndex));
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// if (null != num) {
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// // 合并最后一行 ,列
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// this.mergeWithPrevCol(writeSheetHolder, cell, curRowIndex, curColIndex, num);
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// }
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// }
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public void mergeWithPrevCol(WriteSheetHolder writeSheetHolder, Cell cell, int curRowIndex, int curColIndex, int num) {
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Sheet sheet = writeSheetHolder.getSheet();
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CellRangeAddress cellRangeAddress = new CellRangeAddress(curRowIndex, curRowIndex, curColIndex, curColIndex + num);
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sheet.addMergedRegion(cellRangeAddress);
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}
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//num从第几列开始增加多少列，(6,2,7)代表的意思就是第6行的第2列至第2+7也就是9列开始合并
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public void add(int curRowIndex, int curColIndex, int num) {
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mergeInfo.put(String.format(KEY, curRowIndex, curColIndex), num);
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}
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}
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@ -1,110 +0,0 @@
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package com.xdadan.erp.emis.service.billexport;
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import com.alibaba.excel.metadata.Head;
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import com.alibaba.excel.metadata.data.CellData;
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import com.alibaba.excel.write.handler.CellWriteHandler;
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import com.alibaba.excel.write.metadata.holder.WriteSheetHolder;
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import com.alibaba.excel.write.metadata.holder.WriteTableHolder;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.CellType;
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import org.apache.poi.ss.usermodel.Row;
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import org.apache.poi.ss.usermodel.Sheet;
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import org.apache.poi.ss.util.CellRangeAddress;
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import java.util.List;
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/**
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* 行合并工具类
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*
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* @author DaiHaijiao
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*/
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public class ExcelFillCellMergeStrategyUtils implements CellWriteHandler {
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/**
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* 合并字段的下标
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*/
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private int[] mergeColumnIndex;
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/**
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* 合并几行
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*/
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private int mergeRowIndex;
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public ExcelFillCellMergeStrategyUtils(int mergeRowIndex, int[] mergeColumnIndex) {
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this.mergeRowIndex = mergeRowIndex;
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this.mergeColumnIndex = mergeColumnIndex;
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}
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@Override
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public void beforeCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Row row,
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Head head, Integer integer, Integer integer1, Boolean aBoolean) {
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}
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@Override
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public void afterCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Cell cell,
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Head head, Integer integer, Boolean aBoolean) {
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}
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//
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// @Override
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// public void afterCellDataConverted(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder,
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// CellData cellData, Cell cell, Head head, Integer integer, Boolean aBoolean) {
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//
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// }
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//
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// @Override
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// public void afterCellDispose(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder,
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// List<CellData> list, Cell cell, Head head, Integer integer, Boolean aBoolean) {
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// //当前行
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// int curRowIndex = cell.getRowIndex();
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// //当前列
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// int curColIndex = cell.getColumnIndex();
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//
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// if (curRowIndex > mergeRowIndex) {
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// for (int i = 0; i < mergeColumnIndex.length; i++) {
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// if (curColIndex == mergeColumnIndex[i]) {
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// this.mergeWithPrevRow(writeSheetHolder, cell, curRowIndex, curColIndex);
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// break;
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// }
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// }
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// }
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// }
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private void mergeWithPrevRow(WriteSheetHolder writeSheetHolder, Cell cell, int curRowIndex, int curColIndex) {
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//获取当前行的当前列的数据和上一行的当前列列数据，通过上一行数据是否相同进行合并
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//获取当前行的第一列
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Cell firstNowCell = cell.getSheet().getRow(curRowIndex).getCell(curColIndex);
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Object curData = firstNowCell.getCellTypeEnum() == CellType.STRING ? firstNowCell.getStringCellValue() : firstNowCell.getNumericCellValue();
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Row preRow = cell.getSheet().getRow(curRowIndex - 1);
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if (preRow == null) {
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// 当获取不到上一行数据时，使用缓存sheet中数据
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preRow = writeSheetHolder.getCachedSheet().getRow(curRowIndex - 1);
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}
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Cell preCell = preRow.getCell(curColIndex);
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Object preData = preCell.getCellTypeEnum() == CellType.STRING ? preCell.getStringCellValue() : preCell.getNumericCellValue();
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// 比较当前行的第一列的单元格与上一行是否相同，相同合并当前单元格与上一行
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if (curData.equals(preData)) {
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Sheet sheet = writeSheetHolder.getSheet();
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List<CellRangeAddress> mergeRegions = sheet.getMergedRegions();
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boolean isMerged = false;
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for (int i = 0; i < mergeRegions.size() && !isMerged; i++) {
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CellRangeAddress cellRangeAddr = mergeRegions.get(i);
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// 若上一个单元格已经被合并，则先移出原有的合并单元，再重新添加合并单元
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if (cellRangeAddr.isInRange(curRowIndex - 1, curColIndex)) {
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sheet.removeMergedRegion(i);
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cellRangeAddr.setLastRow(curRowIndex);
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sheet.addMergedRegion(cellRangeAddr);
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isMerged = true;
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}
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}
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// 若上一个单元格未被合并，则新增合并单元
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if (!isMerged) {
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CellRangeAddress cellRangeAddress = new CellRangeAddress(curRowIndex - 1, curRowIndex, curColIndex, curColIndex);
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sheet.addMergedRegion(cellRangeAddress);
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}
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}
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}
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}
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public class ExcelUtils {
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public class ExcelUtils {
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public static void exportTplFile(HttpServletResponse response, String excelPath, String fileName, Map<String, Object> outerMap, List<Map<String, Object>> innerMapList,
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ExcelFillCellMergePrevColUtils excelFillCellMergePrevColUtils, ExcelFillCellMergeStrategyUtils excelFillCellMergeStrategyUtils) throws IOException {
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OutputStream fos=response.getOutputStream();
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InputStream fis = new ClassPathResource(excelPath).getInputStream();
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exportToTemplate(fos, fis, outerMap, innerMapList,
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excelFillCellMergePrevColUtils, excelFillCellMergeStrategyUtils);
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}
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public static void exportTplFileLocal(String outFile, String tplFile, Map<String, Object> outerMap, List<Map<String, Object>> innerMapList,
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ExcelFillCellMergePrevColUtils excelFillCellMergePrevColUtils, ExcelFillCellMergeStrategyUtils excelFillCellMergeStrategyUtils) throws IOException {
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FileOutputStream fos=new FileOutputStream(outFile);
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InputStream fis = new FileInputStream(tplFile);
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exportToTemplate(fos, fis,outerMap, innerMapList,
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excelFillCellMergePrevColUtils, excelFillCellMergeStrategyUtils);
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}
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public static void exportToTemplate(OutputStream fos, InputStream fis, Map<String, Object> outerMap, List<Map<String, Object>> innerMapList,
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ExcelFillCellMergePrevColUtils excelFillCellMergePrevColUtils, ExcelFillCellMergeStrategyUtils excelFillCellMergeStrategyUtils) throws IOException {
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// InputStream inputStream = new ClassPathResource(excelPath).getInputStream();
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// response.setContentType("application/vnd.ms-excel");
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// response.setCharacterEncoding("utf-8");
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// String fileOutFileName = URLEncoder.encode(fileName, "UTF-8");
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// response.setHeader("Content-disposition", "attachment;filename=" + fileName + ".xlsx");
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ExcelWriter excelWriter = EasyExcel.write(fos)
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.withTemplate(fis)
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.registerWriteHandler(excelFillCellMergePrevColUtils)
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.registerWriteHandler(excelFillCellMergeStrategyUtils)
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.build();
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WriteSheet writeSheet = EasyExcel.writerSheet().build();
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FillConfig fillConfig = FillConfig.builder().forceNewRow(Boolean.TRUE).build();
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if (null != innerMapList && innerMapList.size() > 0) {
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FillWrapper listWrapper = new FillWrapper("list", innerMapList);
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excelWriter.fill(listWrapper, fillConfig, writeSheet);
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}
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if (null != outerMap && outerMap.size() > 0) {
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excelWriter.fill(outerMap, writeSheet);
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}
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excelWriter.finish();
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}
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/**
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/**
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* 验证并获取excel单元格内的值
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* 验证并获取excel单元格内的值
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*
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*
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