Java简单实现xls转xlsx
2024-06-25 18:55:38
已完成
- sheet页隐藏
- 冻结的单元格
- 设置默认行高
- 合并单元格
- 下拉列表（单元格校验）
- 设置行高
- 设置列样式
- 设置列宽
- 设置单元格样式
- 设置单元格字体
- 设置单元格批注
项目地址
package xxx.common.utils;
import xxx.common.entity.ExcelCell;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.CellRangeAddress;
import org.apache.poi.ss.util.CellRangeAddressList;
import org.apache.poi.ss.util.PaneInformation;
import org.apache.poi.xssf.usermodel.*;
import java.util.*;import static org.apache.poi.ss.usermodel.CellType.*;public class ExcelUtil {/*** 获取合并单元格的值* @param sheet* @param row* @param column* @return*/public static ExcelCell getMergedRegionEntity(Sheet sheet , int row , int column){int sheetMergeCount = sheet.getNumMergedRegions();for(int i = 0 ; i < sheetMergeCount ; i++){CellRangeAddress ca = sheet.getMergedRegion(i);int firstColumn = ca.getFirstColumn();int lastColumn = ca.getLastColumn();int firstRow = ca.getFirstRow();int lastRow = ca.getLastRow();if(row >= firstRow && row <= lastRow){if(column >= firstColumn && column <= lastColumn){Row fRow = sheet.getRow(firstRow);Cell fCell = fRow.getCell(firstColumn);ExcelCell cell = new ExcelCell();cell.setMergedRegion(true);cell.setFirstColumn(firstColumn);cell.setLastColumn(lastColumn);cell.setFirstRow(firstRow);cell.setLastRow(lastRow);cell.setValue(getCellValue(fCell));return cell;}}}return null ;}/*** 判断指定的单元格是否是合并单元格* @param sheet* @param row* @param column* @return*/public static boolean isMergedRegion(Sheet sheet , int row , int column){int sheetMergeCount = sheet.getNumMergedRegions();for(int i = 0 ; i < sheetMergeCount ; i++ ){CellRangeAddress ca = sheet.getMergedRegion(i);int firstColumn = ca.getFirstColumn();int lastColumn = ca.getLastColumn();int firstRow = ca.getFirstRow();int lastRow = ca.getLastRow();if(row >= firstRow && row <= lastRow){if(column >= firstColumn && column <= lastColumn){return true ;}}}return false ;}/*** 获取单元格的值* @param cell* @return*/public static String getCellValue(Cell cell){if(cell == null) return "";if(cell.getCellType() == STRING){return cell.getStringCellValue();}else if(cell.getCellType() == BOOLEAN){return String.valueOf(cell.getBooleanCellValue());}else if(cell.getCellType() == FORMULA){return cell.getCellFormula() ;}else if(cell.getCellType() == NUMERIC){return String.valueOf(cell.getNumericCellValue());}return "";}/*** 转换 AA => 27* @param rowName* @return* @throws Exception*/public static Integer getCellRowIndex(String rowName) throws Exception {Integer A_charAt = Integer.valueOf('A');Integer Z_charAt = Integer.valueOf('Z');Integer full = Z_charAt - A_charAt;char[] codeList = rowName.toUpperCase().toCharArray();Integer offset = A_charAt - 1;int num = 0;for (int i=0; i<codeList.length; i++) {char chr = codeList[i];Integer chr_charAt = Integer.valueOf(chr);if (chr_charAt < A_charAt|| chr_charAt > Z_charAt) {throw new Exception("非法的单元格位置！");}num += (chr_charAt - offset) + full * i;}return num;}/*** 分割cell地址* AAA111 => { x: AAA, y:111 }* @param cellAddr* @return*/public static Map<String, String> splitSingleCellAddr(String cellAddr) {String x = new String(cellAddr);String y = new String(cellAddr);x = x.replaceAll("\\d+", "");y = y.replaceAll("[a-zA-Z]+", "");Map<String, String> res = new HashMap<>();res.put("x", x);res.put("y", y);return res;}/*** 将xls转换为xlsx* @param xls* @return*/public static XSSFWorkbook xls2xlsx(HSSFWorkbook xls) {int sheetNum = xls.getNumberOfSheets();XSSFWorkbook newXlsx = new XSSFWorkbook();for (int i=0; i<sheetNum; i++) {HSSFSheet oldSheet = xls.getSheetAt(i);XSSFSheet newSheet = newXlsx.createSheet(oldSheet.getSheetName());oldSheet.getActiveCell();// sheet页隐藏if (xls.isSheetHidden(i)) {newXlsx.setSheetHidden(i, true);}// 冻结的单元格 okPaneInformation paneInformation = oldSheet.getPaneInformation();if (!Objects.isNull(paneInformation)) {newSheet.createFreezePane(paneInformation.getVerticalSplitPosition(), paneInformation.getHorizontalSplitPosition(),paneInformation.getVerticalSplitLeftColumn(), paneInformation.getHorizontalSplitTopRow());}// 这个不知道是设置什么 ？int[] oldColumnBreaks = oldSheet.getColumnBreaks();for (int j : oldColumnBreaks) {newSheet.setColumnBreak(j);}// 设置默认行高newSheet.setDefaultRowHeightInPoints(oldSheet.getDefaultRowHeightInPoints());newSheet.setDefaultRowHeight(oldSheet.getDefaultRowHeight());newSheet.setDefaultColumnWidth(oldSheet.getDefaultColumnWidth());// 合并单元格 OKList<CellRangeAddress> mergeRegins = oldSheet.getMergedRegions();for (int j = 0; j < mergeRegins.size(); j++) {newSheet.addMergedRegion(mergeRegins.get(j));}// 保护单元格 @TODO// 下拉列表（单元格校验） OKXSSFDataValidationHelper helper = new XSSFDataValidationHelper(newSheet);List<HSSFDataValidation> validationList = oldSheet.getDataValidations();for (HSSFDataValidation item : validationList) {CellRangeAddressList cellRangeAddressList = item.getRegions();DataValidationConstraint dvConstraint = item.getValidationConstraint();XSSFDataValidationConstraint dv = copyDataValidationConstraint(dvConstraint);DataValidation dataValidation = helper.createValidation(dv, cellRangeAddressList);newSheet.addValidationData(dataValidation);}// 单元格的值for (int j = 0; j <= oldSheet.getLastRowNum(); j++) {HSSFRow row = oldSheet.getRow(j);if(row != null){XSSFRow newRow = newSheet.getRow(j);if (Objects.isNull(newRow)) newRow = newSheet.createRow(j);// 设置行高 OKnewRow.setHeight(row.getHeight());newRow.setHeightInPoints(row.getHeightInPoints());// 隐藏列 —— 无效newRow.setZeroHeight(row.getZeroHeight());// 设置列样式 OKXSSFCellStyle newStyle = newXlsx.createCellStyle();if (!Objects.isNull(row.getRowStyle())) {HSSFFont oldFont = row.getRowStyle().getFont(xls);if (!Objects.isNull(oldFont)) {XSSFFont newFont = newXlsx.createFont();transXSSFFont(oldFont, newFont);newStyle.setFont(newFont);}}transXSSFStyle(row.getRowStyle(), newStyle);newRow.setRowStyle(newStyle);for (int k = oldSheet.getRow(j).getFirstCellNum(); k < oldSheet.getRow(j).getLastCellNum(); k++) {// 设置列宽 OKnewSheet.setColumnWidth(k, oldSheet.getColumnWidth(k));// 获取每个单元格HSSFCell cell = row.getCell(k);if (cell == null) {continue;}XSSFCell newCell = newRow.getCell(k);// 隐藏行 —— 无效if (oldSheet.isColumnHidden(k)) {newSheet.setColumnHidden(k, true);}if (Objects.isNull(newCell)) newCell = newRow.createCell(k);// 设置单元格样式 OKXSSFCellStyle newCellStyle = newXlsx.createCellStyle();transXSSFStyle(cell.getCellStyle(), newCellStyle);// 设置单元格字体if (!Objects.isNull(cell.getCellStyle())) {HSSFFont oldFont = cell.getCellStyle().getFont(xls);if (!Objects.isNull(oldFont)) {XSSFFont newFont = newXlsx.createFont();transXSSFFont(oldFont, newFont);newCellStyle.setFont(newFont);}}newCell.setCellStyle(newCellStyle);// 设置单元格批注 OK// 批注值 yesXSSFComment newComment = copyComment(cell, newSheet.createDrawingPatriarch());// 批注样式 no// 将批注添加到单元格对象中newCell.setCellComment(newComment);// 设置单元格公式 OKnewCell.setHyperlink(cell.getHyperlink());// 设置单元格值 OKnewCell.setCellType(cell.getCellType());switch (cell.getCellType()) {case STRING:newCell.setCellValue(cell.getRichStringCellValue().getString());break;case NUMERIC:if (org.apache.poi.ss.usermodel.DateUtil.isCellDateFormatted(cell)) {newCell.setCellValue(cell.getDateCellValue());} else {newCell.setCellValue(cell.getNumericCellValue());}break;case BOOLEAN:newCell.setCellValue(cell.getBooleanCellValue());break;case FORMULA:newCell.setCellFormula(cell.getCellFormula());break;case ERROR:newCell.setCellErrorValue(cell.getErrorCellValue());default:newCell.setCellValue("");break;}}}}}return newXlsx;}/*** 迁移字体* @param oldFont* @param newFont*/private static void transXSSFFont(HSSFFont oldFont, XSSFFont newFont) {newFont.setBold(oldFont.getBold());newFont.setFontName(oldFont.getFontName());newFont.setColor(oldFont.getColor());newFont.setFontHeightInPoints(oldFont.getFontHeightInPoints());newFont.setItalic(oldFont.getItalic());newFont.setCharSet(oldFont.getCharSet());newFont.setFontHeight(oldFont.getFontHeight());newFont.setStrikeout(oldFont.getStrikeout());newFont.setTypeOffset(oldFont.getTypeOffset());newFont.setUnderline(oldFont.getUnderline());}/*** 复制注解* @param cell* @param newDrawing* @return*/private static XSSFComment copyComment(HSSFCell cell, XSSFDrawing newDrawing) {HSSFComment oldComment = cell.getCellComment();if (Objects.isNull(oldComment)) return null;ClientAnchor anchor = new XSSFClientAnchor();// 关键修改anchor.setDx1(0);anchor.setDx2(0);anchor.setDy1(0);anchor.setDy2(0);anchor.setCol1(cell.getColumnIndex());anchor.setRow1(cell.getRowIndex());anchor.setCol2(cell.getColumnIndex() + 5);anchor.setRow2(cell.getRowIndex() + 6);// 结束XSSFComment comment = newDrawing.createCellComment(anchor);// 输入批注信息HSSFRichTextString str = oldComment.getString();XSSFRichTextString newStr = copyRichTextString(str);comment.setString(newStr);return comment;}/*** 复制富文本* @param str* @return*/private static XSSFRichTextString copyRichTextString(HSSFRichTextString str) {XSSFRichTextString newStr = new XSSFRichTextString();newStr.setString(str.getString());return newStr;}/*** 复制下拉框* @param dvConstraint* @return*/private static XSSFDataValidationConstraint copyDataValidationConstraint(DataValidationConstraint dvConstraint) {System.out.println(dvConstraint.getExplicitListValues());XSSFDataValidationConstraint dv = new XSSFDataValidationConstraint(dvConstraint.getExplicitListValues());dv.setOperator(dvConstraint.getOperator());if (!Objects.isNull(dvConstraint.getFormula1())) {dv.setFormula1(dvConstraint.getFormula1());}if (!Objects.isNull(dvConstraint.getFormula2())) {dv.setFormula2(dvConstraint.getFormula2());}return dv;}/*** 转换单元格属性* @param oldStyle* @param newStyle*/public static void transXSSFStyle(HSSFCellStyle oldStyle, XSSFCellStyle newStyle) {if (Objects.isNull(oldStyle)) return ;newStyle.setAlignment(oldStyle.getAlignment());newStyle.setVerticalAlignment(oldStyle.getVerticalAlignment());newStyle.setBorderBottom(oldStyle.getBorderBottom());newStyle.setBorderLeft(oldStyle.getBorderLeft());newStyle.setBorderRight(oldStyle.getBorderRight());newStyle.setBorderTop(oldStyle.getBorderTop());newStyle.setBottomBorderColor(oldStyle.getBottomBorderColor());newStyle.setTopBorderColor(oldStyle.getTopBorderColor());newStyle.setLeftBorderColor(oldStyle.getLeftBorderColor());newStyle.setRightBorderColor(oldStyle.getRightBorderColor());newStyle.setFillForegroundColor(oldStyle.getFillForegroundColor());newStyle.setFillPattern(oldStyle.getFillPattern());
// newStyle.setFont(oldStyle.getFont());newStyle.setWrapText(oldStyle.getWrapText());newStyle.setDataFormat(oldStyle.getDataFormat());newStyle.setFillBackgroundColor(oldStyle.getFillForegroundColor());newStyle.setHidden(oldStyle.getHidden());newStyle.setIndention(oldStyle.getIndention());newStyle.setLocked(oldStyle.getLocked());newStyle.setQuotePrefixed(oldStyle.getQuotePrefixed());newStyle.setRotation(oldStyle.getRotation());newStyle.setShrinkToFit(oldStyle.getShrinkToFit());}}
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