记Excel模板导出并转为PDF，⽀持批量打包下载。
最近项⽬⽤到了PDF导出，主要是后端完成，主要是个⼈不会设计PDF模板，效果太丑了，就想到了⽤Excel转PDF，且不⽤再设置样式，在模板中设置好了就可以直接套⽤了，记录下简单思路：1. ⽤excel设计好模板，因为涉及到多个表格需要动态插⼊数据，所以需要注意表格⾏列的计算。
2. 将excel转为PDF⽂档。
3. 若是存在多个PDF，则进⾏ZIP打包再提供下载，基于spring boot提供下载。
⾸先是excel模板样式预览PDF预览下载预览⾸先引⼊依赖<!-- https:///artifact/com.itextpdf/itextpdf --><dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>5.5.13.2</version></dependency><!-- https:///artifact/com.itextpdf/itext-asian --><dependency><groupId>com.itextpdf</groupId><artifactId>itext-asian</artifactId><version>5.2.0</version></dependency><!-- https:///artifact/org.apache.poi/poi --><dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>5.0.0</version></dependency><!-- https:///artifact/org.apache.poi/poi-ooxml --><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>5.0.0</version></dependency>服务层代码/*** PDF导出** @param form 表单* @param response 响应* @throws DocumentException 异常* @throws IOException 异常*/public void pdfExport(BaseForm form, HttpServletResponse response) throws DocumentException, IOException {//将zip以流的形式输出到前台response.setContentType("application/octet-stream");String keyword = form.getKeyword();ApiRegisterVo vo = null;if (StringUtils.isNotBlank(keyword)) {vo = JSON.parseObject(keyword, ApiRegisterVo.class);}// 数据列表List<ApiRegisterVo> vos = findList(vo);if (ObjectUtils.isNotEmpty(vos)) { // 不为空才导出if (vos.size() == 1) { // 单⽂件导出ApiRegisterVo temp = vos.get(0);ApiRegisterDetailVo detailVo = detail(temp.getId(), vo.getGatewayAddress());response.setHeader("Content-Disposition", "attachment;filename="+ URLEncoder.encode(detailVo.getName() + System.currentTimeMillis(), "UTF-8") + ".pdf");Workbook workbook = excelService.openGatewayApiWorkbook(detailVo);byte[] bytes = ExcelToPdfUtil.excelToPdf(workbook, false, 0.8f);response.getOutputStream().write(bytes);} else { // 批量压缩导出// pdf数据包列表List<Map<String, byte[]>> dataPackage = new ArrayList<>();// 单个数据，key为⽂件名Map<String, byte[]> map;// ⽂件设置，附件形式打开response.setHeader("content-disposition", "attachment; filename="+ URLEncoder.code("GatewayInfo" + System.currentTimeMillis(), "UTF-8") + ".zip");for (ApiRegisterVo registerVo : vos) {ApiRegisterDetailVo detailVo = detail(registerVo.getId(), vo.getGatewayAddress());Workbook workbook = excelService.openGatewayApiWorkbook(detailVo);byte[] bytes = ExcelToPdfUtil.excelToPdf(workbook, false, 0.8f);map = new HashMap<>();map.put(detailVo.getName() + System.currentTimeMillis() + ".pdf", bytes);dataPackage.add(map);}byte[] zipByte = ZipUtil.batchZipByte(dataPackage);response.getOutputStream().write(zipByte);}response.flushBuffer();}}excel导出⽅法/*** 根据模板导出excel** @param vo 数据列表* @return⼯作簿*/public Workbook openGatewayApiWorkbook(ApiRegisterDetailVo vo) throws IOException {String templatePath = "template/openGatewayApi.xlsx";Workbook workbook = ExcelUtils.getWorkBook(templatePath);// 字体信息assert workbook != null;Font font = workbook.createFont();font.setFontName("宋体");font.setBold(true);font.setFontHeightInPoints((short) 12);CellStyle workbookCellStyle = workbook.createCellStyle();workbookCellStyle.setWrapText(true);workbookCellStyle.setFont(font);workbookCellStyle.setVerticalAlignment(VerticalAlignment.CENTER);// 写⼊第⼀页sheet中Sheet sheet0 = workbook.getSheetAt(0);// 名称setMergedCellValue(sheet0, 0, 0, vo.getName());// 基本信息,固定⾏信息优先填写好setMergedCellValue(sheet0, 2, 1, vo.getName());setMergedCellValue(sheet0, 3, 1, vo.getMethods());setMergedCellValue(sheet0, 4, 1, vo.getPath());setMergedCellValue(sheet0, 5, 1, vo.getRequestUrl() == null ? "" : vo.getRequestUrl());setMergedCellValue(sheet0, 6, 1, vo.getVersion() == null ? "" : vo.getVersion());setMergedCellValue(sheet0, 7, 1, vo.getNote() == null ? "" : vo.getNote());setMergedCellValue(sheet0, 15, 0, vo.getRequestParamsExample() == null ? "": vo.getRequestParamsExample().getExample() == null ? "" : vo.getRequestParamsExample().getExample());setMergedCellValue(sheet0, 22, 0, vo.getPathParamsExample() == null ? "": vo.getPathParamsExample().getExample() == null ? "" : vo.getPathParamsExample().getExample());setMergedCellValue(sheet0, 30, 0, vo.getResponseParamsExample() == null ? "": vo.getResponseParamsExample().getExample() == null ? "" : vo.getResponseParamsExample().getExample()); setMergedCellValue(sheet0, 34, 2, vo.getMoreStateCodeUrl() == null ? "" : vo.getMoreStateCodeUrl());// 请求头List<ApiParams> requestHeaderParams = vo.getRequestHeaderParams();// 记录请求头动态添加的⾏数int requestHeaderParamsAddRow = 0;// 请求参数List<ApiParams> requestParams = vo.getRequestParams();// 记录请求参数动态添加的⾏数int requestParamsAddRow = 0;// 路径参数List<ApiParams> pathParams = vo.getPathParams();// 记录路径参数动态添加的⾏数int pathParamsAddRow = 0;// 响应头List<ApiParams> responseHeaderParams = vo.getResponseHeaderParams();// 记录响应头动态添加的⾏数int responseHeaderParamsAddRow = 0;// 响应参数List<ApiParams> responseParams = vo.getResponseParams();// 记录响应参数动态添加的⾏数int responseParamsAddRow = 0;// 状态码List<ApiErrcode> apiErrcodes = vo.getApiErrcodes();// 记录状态码动态添加的⾏数int apiErrcodesAddRow = 0;// 表格数据填充if (ObjectUtils.isNotEmpty(requestHeaderParams)) { // 请求头// 计算起始⾏和获取样式⾏int startRow = 11;// 样式⾏requestHeaderParamsAddRow = getParamsAddRow(sheet0, requestHeaderParams, requestHeaderParamsAddRow, startRow);}if (ObjectUtils.isNotEmpty(requestParams)) { // 请求参数// 计算起始⾏,原14+请求头添加⾏int startRow = 14 + (Math.max(requestHeaderParamsAddRow - 1, 0));// 样式⾏Row styleRow = sheet0.getRow(startRow - 1);if (requestParams.size() > 1) { // 动态插⼊⾏sheet0.shiftRows(startRow, sheet0.getLastRowNum(), requestParams.size() - 1, true, false);}requestParamsAddRow = getParamsAddRow(sheet0, requestParams, requestParamsAddRow, startRow, styleRow);}if (ObjectUtils.isNotEmpty(pathParams)) { // 路径参数// 计算起始⾏，原21+请求头添加⾏+请求参数添加⾏int startRow = 21 + (Math.max(requestHeaderParamsAddRow - 1, 0)) + (Math.max(requestParamsAddRow - 1, 0));// 样式⾏Row styleRow = sheet0.getRow(startRow - 1);pathParamsAddRow = getParamsAddRow(sheet0, pathParams, pathParamsAddRow, startRow, styleRow);}if (ObjectUtils.isNotEmpty(responseHeaderParams)) { // 响应头// 计算起始⾏，原26+请求头添加⾏+请求参数添加⾏+路径参数添加⾏int startRow = 26 + (Math.max(requestHeaderParamsAddRow - 1, 0)) + (Math.max(requestParamsAddRow - 1, 0))+ (Math.max(pathParamsAddRow - 1, 0));// 样式⾏Row styleRow = sheet0.getRow(startRow - 1);if (responseHeaderParams.size() > 1) { // 动态插⼊⾏sheet0.shiftRows(startRow, sheet0.getLastRowNum(), pathParams.size() - 1, true, false);}for (ApiParams apiParams : responseHeaderParams) {// 插⼊的⾏号int rowNum = responseHeaderParamsAddRow + (startRow - 1);Row newRow = sheet0.getRow(rowNum) == null ? sheet0.createRow(rowNum) : sheet0.getRow(rowNum);newRow.setRowStyle(styleRow.getRowStyle());newRow.setHeight(styleRow.getHeight());Cell cell0 = getCell(newRow, 0);cell0.setCellStyle(getCell(styleRow, 0).getCellStyle());cell0.setCellValue(apiParams.getName());Cell cell1 = getCell(newRow, 1);cell1.setCellStyle(getCell(styleRow, 1).getCellStyle());cell1.setCellValue(apiParams.getExample() == null ? "" : apiParams.getExample());Cell cell2 = getCell(newRow, 2);cell2.setCellStyle(getCell(styleRow, 2).getCellStyle());Cell cell3 = getCell(newRow, 3);cell3.setCellStyle(getCell(styleRow, 3).getCellStyle());cell3.setCellValue(apiParams.getNote() == null ? "" : apiParams.getNote());Cell cell4 = getCell(newRow, 4);cell4.setCellStyle(getCell(styleRow, 4).getCellStyle());if (!ExcelUtils.isMergedRegion(sheet0, newRow.getRowNum(), cell1.getColumnIndex())) {// 合并单元格CellRangeAddress cellAddresses1 = new CellRangeAddress(newRow.getRowNum(), newRow.getRowNum(), cell1.getColumnIndex(), cell2.getColumnIndex()); sheet0.addMergedRegion(cellAddresses1);}if (!ExcelUtils.isMergedRegion(sheet0, newRow.getRowNum(), cell3.getColumnIndex())) {// 合并单元格CellRangeAddress cellAddresses2 = new CellRangeAddress(newRow.getRowNum(), newRow.getRowNum(), cell3.getColumnIndex(), cell4.getColumnIndex()); sheet0.addMergedRegion(cellAddresses2);}responseHeaderParamsAddRow++;}}if (ObjectUtils.isNotEmpty(responseParams)) { // 响应参数// 计算起始⾏，原29+请求头添加⾏+请求参数添加⾏+路径参数添加⾏+响应头参数添加⾏int startRow = 29 + (Math.max(requestHeaderParamsAddRow - 1, 0)) + (Math.max(requestParamsAddRow - 1, 0))+ (Math.max(pathParamsAddRow - 1, 0)) + (Math.max(responseHeaderParamsAddRow - 1, 0));// 样式⾏responseParamsAddRow = getParamsAddRow(sheet0, responseParams, responseParamsAddRow, startRow);}if (ObjectUtils.isNotEmpty(apiErrcodes)) { // API状态码// 计算起始⾏，原37+请求头添加⾏+请求参数添加⾏+路径参数添加⾏+响应头参数添加⾏+响应参数添加⾏int startRow = 37 + (Math.max(requestHeaderParamsAddRow - 1, 0)) + (Math.max(requestParamsAddRow - 1, 0))+ (Math.max(pathParamsAddRow - 1, 0)) + (Math.max(responseHeaderParamsAddRow - 1, 0))+ (Math.max(responseParamsAddRow - 1, 0));Row styleRow = sheet0.getRow(startRow - 1);if (apiErrcodes.size() > 1) { // 动态插⼊⾏,此表格最后⾏为空⾏，会⽆法识别到，所以从上⼀⾏开始下移插⼊sheet0.shiftRows(startRow - 1, sheet0.getLastRowNum(), apiErrcodes.size() - 1, true, false);}for (ApiErrcode errcode : apiErrcodes) {// 插⼊的⾏号int rowNum = apiErrcodesAddRow + (startRow - 1);Row newRow = sheet0.getRow(rowNum) == null ? sheet0.createRow(rowNum) : sheet0.getRow(rowNum);newRow.setRowStyle(styleRow.getRowStyle());newRow.setHeight(styleRow.getHeight());Cell cell0 = getCell(newRow, 0);cell0.setCellStyle(getCell(styleRow, 0).getCellStyle());cell0.setCellValue(errcode.getCode());Cell cell1 = getCell(newRow, 1);cell1.setCellStyle(getCell(styleRow, 1).getCellStyle());cell1.setCellValue(errcode.getNote() == null ? "" : errcode.getNote());Cell cell2 = getCell(newRow, 2);cell2.setCellStyle(getCell(styleRow, 2).getCellStyle());Cell cell3 = getCell(newRow, 3);cell3.setCellStyle(getCell(styleRow, 3).getCellStyle());apiErrcodesAddRow = getCodeAddRow(sheet0, apiErrcodesAddRow, styleRow, newRow, cell1);}}workbook.close();return workbook;}/*** 合并单元格** @param sheet0 ⼯作簿* @param addRow 添加⾏* @param styleRow 样式⾏* @param newRow 插⼊⾏* @param cell1 单元格* @return添加⾏*/private int getCodeAddRow(Sheet sheet0, int addRow, Row styleRow, Row newRow, Cell cell1) {Cell cell4 = getCell(newRow, 4);cell4.setCellStyle(getCell(styleRow, 4).getCellStyle());if (!ExcelUtils.isMergedRegion(sheet0, newRow.getRowNum(), cell1.getColumnIndex())) {// 合并单元格CellRangeAddress cellAddresses = new CellRangeAddress(newRow.getRowNum(), newRow.getRowNum(), cell1.getColumnIndex(), cell4.getColumnIndex()); sheet0.addMergedRegion(cellAddresses);}addRow++;return addRow;}/*** 提取重复项** @param sheet0 ⼯作簿* @param paramsList 参数列表* @param addRow 添加⾏* @param startRow 样式⾏* @param styleRow 样式⾏* @return参数添加⾏*/private int getParamsAddRow(Sheet sheet0, List<ApiParams> paramsList, int addRow, int startRow, Row styleRow) {for (ApiParams apiParams : paramsList) {// 插⼊的⾏号int rowNum = addRow + (startRow - 1);Row newRow = sheet0.getRow(rowNum) == null ? sheet0.createRow(rowNum) : sheet0.getRow(rowNum);newRow.setRowStyle(styleRow.getRowStyle());newRow.setHeight(styleRow.getHeight());// 插⼊数据Cell cell0 = getCell(newRow, 0);cell0.setCellStyle(getCell(styleRow, 0).getCellStyle());cell0.setCellValue(apiParams.getName());Cell cell1 = getCell(newRow, 1);cell1.setCellStyle(getCell(styleRow, 1).getCellStyle());cell1.setCellValue(apiParams.getRequired());Cell cell2 = getCell(newRow, 2);cell2.setCellStyle(getCell(styleRow, 2).getCellStyle());cell2.setCellValue(apiParams.getDataType());Cell cell3 = getCell(newRow, 3);cell3.setCellStyle(getCell(styleRow, 3).getCellStyle());cell3.setCellValue(apiParams.getExample() == null ? "" : apiParams.getExample());Cell cell4 = getCell(newRow, 4);cell4.setCellStyle(getCell(styleRow, 4).getCellStyle());cell4.setCellValue(apiParams.getNote() == null ? "" : apiParams.getNote());addRow++;}return addRow;}/*** 提取重复项** @param sheet0 ⼯作簿* @param paramsList 参数列表* @param addRow 添加⾏* @param startRow 开始⾏* @return参数添加⾏*/private int getParamsAddRow(Sheet sheet0, List<ApiParams> paramsList, int addRow, int startRow) {Row styleRow = sheet0.getRow(startRow - 1);if (paramsList.size() > 1) { // 动态插⼊⾏sheet0.shiftRows(startRow, sheet0.getLastRowNum(), paramsList.size() - 1, true, false);}for (ApiParams apiParams : paramsList) {// 插⼊的⾏号int rowNum = addRow + (startRow - 1);Row newRow = sheet0.getRow(rowNum) == null ? sheet0.createRow(rowNum) : sheet0.getRow(rowNum); newRow.setRowStyle(styleRow.getRowStyle());newRow.setHeight(styleRow.getHeight());Cell cell0 = getCell(newRow, 0);cell0.setCellStyle(getCell(styleRow, 0).getCellStyle());cell0.setCellValue(apiParams.getName());Cell cell1 = getCell(newRow, 1);cell1.setCellStyle(getCell(styleRow, 1).getCellStyle());cell1.setCellValue(apiParams.getRequired());Cell cell2 = getCell(newRow, 2);cell2.setCellStyle(getCell(styleRow, 2).getCellStyle());cell2.setCellValue(apiParams.getExample() == null ? "" : apiParams.getExample());Cell cell3 = getCell(newRow, 3);cell3.setCellStyle(getCell(styleRow, 3).getCellStyle());cell3.setCellValue(apiParams.getNote() == null ? "" : apiParams.getNote());addRow = getCodeAddRow(sheet0, addRow, styleRow, newRow, cell3);}return addRow;}/*** 设置合并单元格值** @param sheet ⼯作表* @param row ⾏* @param column 列* @param value 值*/private void setMergedCellValue(Sheet sheet, int row, int column, Object value) {Cell cell = ExcelUtils.getMergedRegion(sheet, row, column);if (cell != null && value != null) {cell.setCellValue(ExcelUtils.getCellValue(cell) + value);}}excel⼯具类package com.edp.gateway.open.utils;import ng3.StringUtils;import ermodel.HSSFClientAnchor;import ermodel.HSSFPicture;import ermodel.HSSFShape;import ermodel.HSSFSheet;import ermodel.HSSFWorkbook;import org.apache.poi.ooxml.POIXMLDocumentPart;import ermodel.Cell;import ermodel.CellType;import ermodel.PictureData;import ermodel.Row;import ermodel.Sheet;import ermodel.Workbook;import org.apache.poi.ss.util.CellRangeAddress;import ermodel.XSSFClientAnchor;import ermodel.XSSFDrawing;import ermodel.XSSFPicture;import ermodel.XSSFShape;import ermodel.XSSFSheet;import ermodel.XSSFWorkbook;import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTMarker; import org.springframework.core.io.ClassPathResource;import java.io.IOException;import java.io.InputStream;import java.util.HashMap;import java.util.List;import java.util.Map;public class ExcelUtils {/*** 获取excel** @param filePath ⽂件路径* @return Workbook*/public static Workbook getWorkBook(String filePath) {if (StringUtils.isBlank(filePath)) {return null;}Workbook workbook = null;try {ClassPathResource cpr = new ClassPathResource(filePath);try (InputStream is = cpr.getInputStream()) {if (filePath.endsWith("xls")) {// 2003workbook = new HSSFWorkbook(is);} else if (filePath.endsWith("xlsx")) {// 2007workbook = new XSSFWorkbook(is);}}} catch (IOException e) {e.printStackTrace();}return workbook;}/*** 读取excel中的图⽚和位置** @param workbook excel* @param sheet ⼯作表* @return Map<String, PictureData>*/public static Map<String, PictureData> getPictures(Workbook workbook, Sheet sheet) { Map<String, PictureData> map = new HashMap<>();if (workbook instanceof HSSFWorkbook) {map = getPictures2003((HSSFSheet) sheet);} else if (workbook instanceof XSSFWorkbook) {map = getPictures2007((XSSFSheet) sheet);}return map;}/*** 读取excel中的图⽚和位置（xls）** @param sheet ⼯作表* @return Map<String, PictureData>*/public static Map<String, PictureData> getPictures2003(HSSFSheet sheet) {Map<String, PictureData> map = new HashMap<>();List<HSSFShape> list = sheet.getDrawingPatriarch().getChildren();for (HSSFShape shape : list) {if (shape instanceof HSSFPicture) {HSSFPicture picture = (HSSFPicture) shape;HSSFClientAnchor cAnchor = (HSSFClientAnchor) picture.getAnchor();// ⾏号-列号String key = cAnchor.getRow1() + "-" + cAnchor.getCol1();map.put(key, picture.getPictureData());}}return map;}/*** 读取excel中的图⽚和位置（xlsx）** @param sheet ⼯作表* @return Map<String, PictureData>*/public static Map<String, PictureData> getPictures2007(XSSFSheet sheet) { Map<String, PictureData> map = new HashMap<>();List<POIXMLDocumentPart> list = sheet.getRelations();for (POIXMLDocumentPart part : list) {if (part instanceof XSSFDrawing) {XSSFDrawing drawing = (XSSFDrawing) part;List<XSSFShape> shapes = drawing.getShapes();for (XSSFShape shape : shapes) {if (shape instanceof XSSFPicture) {XSSFPicture picture = (XSSFPicture) shape;XSSFClientAnchor anchor = picture.getPreferredSize();CTMarker marker = anchor.getFrom();String key = marker.getRow() + "-" + marker.getCol();map.put(key, picture.getPictureData());}}}}return map;}/*** 获取excel中每列宽度的占⽐** @param sheet ⼯作表* @return float[]*/public static float[] getColWidth(Sheet sheet) {int rowNum = getMaxColRowNum(sheet);Row row = sheet.getRow(rowNum);int cellCount = row.getPhysicalNumberOfCells();int[] colWidths = new int[cellCount];int sum = 0;for (int i = row.getFirstCellNum(); i < cellCount; i++) {Cell cell = row.getCell(i);if (cell != null) {colWidths[i] = sheet.getColumnWidth(i);sum += sheet.getColumnWidth(i);}}float[] colWidthPer = new float[cellCount];for (int i = row.getFirstCellNum(); i < cellCount; i++) {//对数字进⾏操作前先校验是否为0if (sum != 0) {colWidthPer[i] = (float) colWidths[i] / sum * 100;}}return colWidthPer;}/*** 获取合并单元格** @param sheet ⼯作表* @param row ⾏* @param column 列* @return Cell*/public static Cell getMergedRegion(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);return fRow.getCell(firstColumn);}}}return null;}/*** 获取单元格的值** @param cell 单元格* @return String*/public static String getCellValue(Cell cell) {if (cell == null) {return "";}if (cell.getCellType() == CellType.STRING) {return cell.getStringCellValue();} else if (cell.getCellType() == CellType.BOOLEAN) {return String.valueOf(cell.getBooleanCellValue());} else if (cell.getCellType() == CellType.FORMULA) {return cell.getCellFormula();} else if (cell.getCellType() == CellType.NUMERIC) {double value = cell.getNumericCellValue();return String.valueOf((long) value);}return "";}/*** 判断指定的单元格是否是合并单元格** @param sheet ⼯作表* @param row ⾏下标* @param column 列下标* @return boolean*/public static boolean isMergedRegion(Sheet sheet, int row, int column) {int sheetMergeCount = sheet.getNumMergedRegions();for (int i = 0; i < sheetMergeCount; i++) {CellRangeAddress range = sheet.getMergedRegion(i);int firstColumn = range.getFirstColumn();int lastColumn = range.getLastColumn();int firstRow = range.getFirstRow();int lastRow = range.getLastRow();if (row >= firstRow && row <= lastRow) {if (column >= firstColumn && column <= lastColumn) {return true;}}}return false;}/*** 获取合并单元格宽⾼** @param sheet ⼯作表* @param row ⾏* @param column 列* @return int[]*/public static float[] getMergedRegionSize(Sheet sheet, int row, int column) { int[] matrix = getMergedRegionMatrix(sheet, row, column);float[] size = new float[2];// 合并单元格⾼float height = 0;// 合并单元格宽float width = 0;for (int y = matrix[0]; y <= matrix[2]; y++) {Row rowY = sheet.getRow(y);if (rowY != null) {height += sheet.getRow(y).getHeightInPoints();}}for (int x = matrix[1]; x <= matrix[3]; x++) {width += sheet.getColumnWidthInPixels(x);}size[0] = height;size[1] = width;return size;}/*** 获取合并单元格矩阵** @param sheet ⼯作表* @param row ⾏* @param column 列* @return int[]*/public static int[] getMergedRegionMatrix(Sheet sheet, int row, int column) { int sheetMergeCount = sheet.getNumMergedRegions();int[] matrix = new int[4];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) {matrix[0] = firstRow;matrix[1] = firstColumn;matrix[2] = lastRow;matrix[3] = lastColumn;break;}}}return matrix;}/*** 计算合并单元格合并的跨⾏跨列数** @param sheet ⼯作表* @param row ⾏* @param column 列* @return int[]*/public static int[] getMergedSpan(Sheet sheet, int row, int column) {int sheetMergeCount = sheet.getNumMergedRegions();int[] span = {1, 1};for (int i = 0; i < sheetMergeCount; i++) {CellRangeAddress range = sheet.getMergedRegion(i);int firstColumn = range.getFirstColumn();int lastColumn = range.getLastColumn();int firstRow = range.getFirstRow();int lastRow = range.getLastRow();if (firstColumn == column && firstRow == row) {span[0] = lastRow - firstRow + 1;span[1] = lastColumn - firstColumn + 1;break;}}return span;}/*** 获取excel中列数最多的⾏号** @param sheet ⼯作表* @return int*/private static int getMaxColRowNum(Sheet sheet) {int rowNum = 0;int maxCol = 0;for (int r = sheet.getFirstRowNum(); r < sheet.getPhysicalNumberOfRows(); r++) { Row row = sheet.getRow(r);if (row != null && maxCol < row.getPhysicalNumberOfCells()) {maxCol = row.getPhysicalNumberOfCells();rowNum = r;}}return rowNum;}}excel转pdf⼯具类package com.edp.gateway.open.utils;import com.itextpdf.text.BaseColor;import com.itextpdf.text.Document;import com.itextpdf.text.DocumentException;import com.itextpdf.text.Element;import com.itextpdf.text.Font;import com.itextpdf.text.Image;import com.itextpdf.text.PageSize;import com.itextpdf.text.Phrase;import com.itextpdf.text.Rectangle;import com.itextpdf.text.pdf.BaseFont;import com.itextpdf.text.pdf.PdfPCell;import com.itextpdf.text.pdf.PdfPTable;import com.itextpdf.text.pdf.PdfWriter;import ermodel.BorderStyle;import ermodel.Cell;import ermodel.CellStyle;import ermodel.PictureData;import ermodel.Row;import ermodel.Sheet;import ermodel.Workbook;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.util.Map;public class ExcelToPdfUtil {/*** ⽤excel⽣成PDF** @param workbook excel⼯作表* @param isRotate 横向或纵向显⽰* @param zoom 缩放⽐例* @return byte[]*/public static byte[] excelToPdf(Workbook workbook, boolean isRotate, float zoom)throws DocumentException, IOException {Sheet sheet = workbook.getSheetAt(0);// 获取excel中的图⽚Map<String, PictureData> pictureDataMap = ExcelUtils.getPictures(workbook, sheet);ByteArrayOutputStream os = new ByteArrayOutputStream();// 创建PDFDocument document = new Document();Rectangle pageSize;if (isRotate) {// 横向显⽰pageSize = new Rectangle(PageSize.A4.getHeight(), PageSize.A4.getWidth());} else {// 纵向显⽰pageSize = new Rectangle(PageSize.A4.getWidth(), PageSize.A4.getHeight());}document.setPageSize(pageSize);PdfWriter.getInstance(document, os);//设置页边距document.setMargins(0, 0, 15, 15);document.open();// Table获取每列所占百分⽐float[] widths = ExcelUtils.getColWidth(sheet);int colCount = widths.length;// 创建TablePdfPTable pTable = new PdfPTable(widths);// 设置Table占页⾯的百分⽐pTable.setWidthPercentage(92);// 设置基本字体BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);// 遍历Excel的⾏和列读取数据for (int r = sheet.getFirstRowNum(); r < sheet.getPhysicalNumberOfRows(); r++) {Row row = sheet.getRow(r);// 为空时创建默认单元格if (row == null) {PdfPCell pCell = new PdfPCell(new Phrase(""));pCell.setBorder(0);pCell.setMinimumHeight(13);pTable.addCell(pCell);} else {for (int c = row.getFirstCellNum(); (c < row.getLastCellNum() || c < colCount); c++) {if (c > row.getPhysicalNumberOfCells()) {PdfPCell pCell = new PdfPCell(new Phrase(""));pCell.setBorder(0);pTable.addCell(pCell);continue;}Cell cell = row.getCell(c);if (cell == null) {continue;}// 获取单元格的值String value = ExcelUtils.getCellValue(cell);// 获取Excel单元格的样式CellStyle cellStyle = cell.getCellStyle();// 获取Excel单元格的字体ermodel.Font excelFont = workbook.getFontAt(cellStyle.getFontIndex());// 设置PDF单元格字体Font pFont = new Font(baseFont, excelFont.getFontHeightInPoints() * zoom,excelFont.getBold() ? Font.BOLD : Font.NORMAL, BaseColor.BLACK);// 处理图⽚// 拼接图⽚的keyString pictureKey = r + "-" + c;PdfPCell pCell;if (pictureDataMap.containsKey(pictureKey)) {// 如果是图⽚则给PDF单元格设置图⽚PictureData pictureData = pictureDataMap.get(pictureKey);Image image = Image.getInstance(pictureData.getData());float percent = 0.8f;if (ExcelUtils.isMergedRegion(sheet, r, c)) {float[] size = ExcelUtils.getMergedRegionSize(sheet, r, c);image.scaleToFit(size[0] * percent, size[1] * percent);} else {image.scaleToFit(row.getHeightInPoints() * percent,sheet.getColumnWidthInPixels(cell.getColumnIndex()) * percent);}pCell = new PdfPCell(image, true);} else {pCell = new PdfPCell(new Phrase(value, pFont));}// 设置对齐⽅式pCell.setHorizontalAlignment(getHorAlignment(cellStyle.getAlignment().getCode()));pCell.setVerticalAlignment(getVerAlignment(cellStyle.getVerticalAlignment().getCode()));// 设置最⼩⾼度pCell.setMinimumHeight(row.getHeightInPoints() * zoom);// 判断是否合并单元格if (ExcelUtils.isMergedRegion(sheet, r, c)) {int[] span = ExcelUtils.getMergedSpan(sheet, r, c);// 忽略合并过的单元格if (span[0] == 1 && span[1] == 1) {continue;}pCell.setRowspan(span[0]);pCell.setColspan(span[1]);// 跳过合并过的单元格c = c + span[1] - 1;}// 设置边框setBorder(pCell, sheet, r, c);pTable.addCell(pCell);}}}document.add(pTable);document.close();byte[] pdfByte = os.toByteArray();os.close();return pdfByte;}/*** 设置PDF边框** @param pCell pdf单元格* @param sheet ⼯作表* @param row ⾏* @param column 列*/private static void setBorder(PdfPCell pCell, Sheet sheet, int row, int column) {Cell cell;boolean isMergedRegion = ExcelUtils.isMergedRegion(sheet, row, column);if (isMergedRegion) {cell = ExcelUtils.getMergedRegion(sheet, row, column);} else {cell = sheet.getRow(row).getCell(column);}assert cell != null;CellStyle cellStyle = cell.getCellStyle();if (BorderStyle.NONE.equals(cellStyle.getBorderTop())) {// 隐藏上边框pCell.disableBorderSide(1);}if (BorderStyle.NONE.equals(cellStyle.getBorderBottom())) {// 隐藏下边框pCell.disableBorderSide(2);。
