使用poi將excel轉換為html,適用本身有匯出excel的而現在需要新增網頁列印的功能
阿新 • • 發佈：2019-01-04
import org.apache.poi.POIXMLDocumentPart; import org.apache.poi.hssf.usermodel.*; import org.apache.poi.hssf.util.HSSFColor; import org.apache.poi.ss.usermodel.*; import org.apache.poi.ss.util.CellRangeAddress; import org.apache.poi.xssf.usermodel.*; import org.openxmlformats.schemas.drawingml.x2006.spreadsheetDrawing.CTMarker; import java.io.*; import java.text.DecimalFormat; import java.text.SimpleDateFormat; import java.util.*; /** * @ClassName: PoiExcelToHtmlUtil * @Description: TODO(poi轉excel為html) * @author liang * @date 2016年5月5日 下午3:50:20 * 2017年5月19日，張鵬：新增隱藏行的過濾，修改excelToHtml入口引數，保證邏輯的正確性 * 2017年5月26日，張鵬：新增圖片處理，當excel中包含圖片時，先將圖片儲存到指定位置，後面在html程式碼中引用該圖片，不同使用環境可修改儲存位置，在web環境下，可指定到webapp下 * 2017年5月27日，張鵬：針對合併單元格後又隱藏了首行（此時下面的行列雖然可以顯示正確的資料，但是poi無法讀取到對應的value）的特殊型別excel，進行合併程式碼的重構 * 2017年5月27日，張鵬：邊框全部使用黑色基本樣式，解決合併後部分邊框為灰色的問題；如果有特殊要求，可在dealStyle方法中解放原來的顏色獲取方法 * 2017年6月5日，張鵬：樣式處理方法dealstyle中，修改width屬性的獲取方式，解決由於合併單元格只計算單獨寬度時造成的寬度計算錯誤的問題，並將原有的寬度轉換為了pt單位，原有的px方式存在錯誤 * 2017年6月6日，張鵬：新增多sheet的excel轉換方式，提供此類呼叫的一套介面 */ public class PoiExcelToHtmlUtil { private static Map<String, Object> map[]; /** * 程式入口方法（讀取指定位置的excel，將其轉換成html形式的字串，並儲存成同名的html檔案在相同的目錄下，預設帶樣式） * @param realPath 檔案路徑 * @param saveName 檔名稱 * @param suffix 檔案字尾 * @return <table>...</table> 字串 */ public static void excelWriteToHtml(String realPath, final String saveName,final String suffix){ System.out.println("*****excel轉html 正在轉換...*****"); String excelFile=realPath + "\\" + saveName + suffix; String htmlFile=realPath + "\\" + saveName + ".html"; File sourcefile = new File(excelFile); try { InputStream is = new FileInputStream(sourcefile); String content = readExcelToHtml(is,true); writeFile(content, htmlFile); } catch (Exception e) { e.printStackTrace(); } System.out.println("*****excel轉html 轉換結束...*****"); } /** * 程式入口方法（將指定路徑的excel檔案讀取成字串） * @param filePath 檔案的路徑 * @param isWithStyle 是否需要表格樣式 包含 字型 顏色 邊框 對齊方式 * @return <table>...</table> 字串 */ public static String readExcelToHtml(String filePath , boolean isWithStyle){ InputStream is = null; String htmlExcel = null; try { File sourcefile = new File(filePath); is = new FileInputStream(sourcefile); Workbook wb = WorkbookFactory.create(is); htmlExcel = readWorkbook(wb,isWithStyle); } catch (Exception e) { e.printStackTrace(); }finally{ try { is.close(); } catch (IOException e) { e.printStackTrace(); } } return htmlExcel; } /** * 程式入口方法（將指定路徑的excel檔案讀取成字串） * @param is excel轉換成的輸入流 * @param isWithStyle 是否需要表格樣式 包含 字型 顏色 邊框 對齊方式 * @return <table>...</table> 字串 */ public static String readExcelToHtml(InputStream is,boolean isWithStyle){ String htmlExcel = null; try { Workbook wb = WorkbookFactory.create(is); htmlExcel = readWorkbook(wb,isWithStyle); } catch (Exception e) { e.printStackTrace(); }finally{ try { is.close(); } catch (IOException e) { e.printStackTrace(); } } return htmlExcel; } /** * 根據excel的版本分配不同的讀取方法進行處理 * @param wb * @param isWithStyle * @return */ private static String readWorkbook(Workbook wb,boolean isWithStyle){ String htmlExcel = ""; if (wb instanceof XSSFWorkbook) { XSSFWorkbook xWb = (XSSFWorkbook) wb; htmlExcel = getExcelInfo(xWb,isWithStyle); }else if(wb instanceof HSSFWorkbook){ HSSFWorkbook hWb = (HSSFWorkbook) wb; htmlExcel = getExcelInfo(hWb,isWithStyle); } return htmlExcel; } /** * 讀取excel成string * @param wb * @param isWithStyle * @return */ public static String getExcelInfo(Workbook wb, boolean isWithStyle){ StringBuffer sb = new StringBuffer(); Sheet sheet = wb.getSheetAt(0);//獲取第一個Sheet的內容 // map等待儲存excel圖片 Map<String, PictureData> sheetIndexPicMap = getSheetPictrues(0, sheet, wb); //臨時儲存位置，正式環境根據部署環境存放其他位置 try { if(sheetIndexPicMap!=null) printImg(sheetIndexPicMap); } catch (IOException e) { e.printStackTrace(); } //讀取excel拼裝html int lastRowNum = sheet.getLastRowNum(); map = getRowSpanColSpanMap(sheet); sb.append("<table style='border-collapse:collapse;width:100%;'>"); Row row = null; //相容 Cell cell = null; //相容 for (int rowNum = sheet.getFirstRowNum(); rowNum <= lastRowNum; rowNum++) { if(rowNum>1000) break; row = sheet.getRow(rowNum); int lastColNum = row.getLastCellNum(); int rowHeight = row.getHeight(); if (row == null) { sb.append("<tr><td > </td></tr>"); continue; }else if(row.getZeroHeight()){ continue; }else if(rowHeight==0){ continue;//針對jxl的隱藏行（此類隱藏行只是把高度設定為0，單getZeroHeight無法識別） } sb.append("<tr>"); for (int colNum = 0; colNum < lastColNum; colNum++) { if(sheet.isColumnHidden(colNum))continue; String imageRowNum = "0_"+rowNum+"_"+colNum; String imageHtml = ""; cell = row.getCell(colNum); if ((sheetIndexPicMap!=null && !sheetIndexPicMap.containsKey(imageRowNum) || sheetIndexPicMap==null) && cell == null) { //特殊情況 空白的單元格會返回null+//判斷該單元格是否包含圖片，為空時也可能包含圖片 sb.append("<td> </td>"); continue; } if(sheetIndexPicMap!=null && sheetIndexPicMap.containsKey(imageRowNum)){ String imagePath = "D:\\pic"+imageRowNum+".jpeg"; imageHtml = "<img src='"+imagePath+"' style='height:"+rowHeight/20+"px;'>"; } String stringValue = getCellValue(cell); if (map[0].containsKey(rowNum + "," + colNum)) { String pointString = (String)map[0].get(rowNum + "," + colNum); int bottomeRow = Integer.valueOf(pointString.split(",")[0]); int bottomeCol = Integer.valueOf(pointString.split(",")[1]); int rowSpan = bottomeRow - rowNum + 1; int colSpan = bottomeCol - colNum + 1; if(map[2].containsKey(rowNum + "," + colNum)){ rowSpan = rowSpan-(Integer)map[2].get(rowNum + "," + colNum); // System.out.println(rowNum + "," + colNum+"減少rows:"+map[2].get(rowNum + "," + colNum)+"，剩餘"+rowSpan+";當前值："+stringValue); } sb.append("<td rowspan= '" + rowSpan + "' colspan= '"+ colSpan + "' "); if(map.length>3 && map[3].containsKey(rowNum + "," + colNum)){ //此類資料首行被隱藏，value為空，需使用其他方式獲取值 stringValue = getMergedRegionValue(sheet,rowNum,colNum); } } else if (map[1].containsKey(rowNum + "," + colNum)) { map[1].remove(rowNum + "," + colNum); continue; } else { sb.append("<td "); } //判斷是否需要樣式 if(isWithStyle){ dealExcelStyle(wb, sheet, cell, sb);//處理單元格樣式 } sb.append(">"); if(sheetIndexPicMap!=null && sheetIndexPicMap.containsKey(imageRowNum)) sb.append(imageHtml); if (stringValue == null || "".equals(stringValue.trim())) { sb.append(" "); } else { // 將ascii碼為160的空格轉換為html下的空格（ ） sb.append(stringValue.replace(String.valueOf((char) 160)," ")); } sb.append("</td>"); } sb.append("</tr>"); } sb.append("</table>"); return sb.toString(); } /** * 分析excel表格，記錄合併單元格相關的引數，用於之後html頁面元素的合併操作 * @param sheet * @return */ @SuppressWarnings({ "unchecked", "rawtypes" }) private static Map<String, Object>[] getRowSpanColSpanMap(Sheet sheet) { Map<String, String> map0 = new HashMap<String, String>();//儲存合併單元格的對應起始和截止單元格 Map<String, String> map1 = new HashMap<String, String>();//儲存被合併的那些單元格 Map<String, Integer> map2 = new HashMap<String, Integer>();//記錄被隱藏的單元格個數 Map<String, String> map3 = new HashMap<String, String>();//記錄合併了單元格，但是合併的首行被隱藏的情況 int mergedNum = sheet.getNumMergedRegions(); CellRangeAddress range = null; Row row = null; for (int i = 0; i < mergedNum; i++) { range = sheet.getMergedRegion(i); int topRow = range.getFirstRow(); int topCol = range.getFirstColumn(); int bottomRow = range.getLastRow(); int bottomCol = range.getLastColumn(); /** * 此類資料為合併了單元格的資料 * 1.處理隱藏（只處理行隱藏，列隱藏poi已經處理） */ if(topRow!=bottomRow){ int zeroRoleNum = 0; int tempRow = topRow; for(int j=topRow;j<=bottomRow;j++){ row = sheet.getRow(j); if(row.getZeroHeight() || row.getHeight()==0){ if(j==tempRow){ //首行就進行隱藏，將rowTop向後移 tempRow++; continue;//由於top下移，後面計算rowSpan時會扣除移走的列，所以不必增加zeroRoleNum; } zeroRoleNum++; } } if(tempRow!=topRow){ map3.put(tempRow + "," + topCol,topRow + "," + topCol); topRow = tempRow; } if(zeroRoleNum!=0) map2.put(topRow + "," + topCol,zeroRoleNum); } map0.put(topRow + "," + topCol, bottomRow + "," + bottomCol); int tempRow = topRow; while (tempRow <= bottomRow) { int tempCol = topCol; while (tempCol <= bottomCol) { map1.put(tempRow + "," + tempCol, topRow + "," + topCol); tempCol++; } tempRow++; } map1.remove(topRow + "," + topCol); } Map[] map = { map0, map1 ,map2,map3}; System.err.println(map0); return map; } /** * 獲取合併單元格的值 * @param sheet * @param row * @param column * @return */ public static String getMergedRegionValue(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); return getCellValue(fCell) ; } } } return null ; } /** * 獲取表格單元格Cell內容 * @param cell * @return */ private static String getCellValue(Cell cell) { String result = new String(); switch (cell.getCellType()) { case Cell.CELL_TYPE_NUMERIC:// 數字型別 if (HSSFDateUtil.isCellDateFormatted(cell)) {// 處理日期格式、時間格式 SimpleDateFormat sdf = null; if (cell.getCellStyle().getDataFormat() == HSSFDataFormat.getBuiltinFormat("h:mm")) { sdf = new SimpleDateFormat("HH:mm"); } else {// 日期 sdf = new SimpleDateFormat("yyyy-MM-dd"); } Date date = cell.getDateCellValue(); result = sdf.format(date); } else if (cell.getCellStyle().getDataFormat() == 58) { // 處理自定義日期格式：m月d日(通過判斷單元格的格式id解決，id的值是58) SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"); double value = cell.getNumericCellValue(); Date date = org.apache.poi.ss.usermodel.DateUtil .getJavaDate(value); result = sdf.format(date); } else { double value = cell.getNumericCellValue(); CellStyle style = cell.getCellStyle(); DecimalFormat format = new DecimalFormat(); String temp = style.getDataFormatString(); // 單元格設定成常規 if (temp.equals("General")) { format.applyPattern("#"); } result = format.format(value); } break; case Cell.CELL_TYPE_STRING:// String型別 result = cell.getRichStringCellValue().toString(); break; case Cell.CELL_TYPE_BLANK: result = ""; break; default: result = ""; break; } return result; } /** * 處理表格樣式 * @param wb * @param sheet * @param cell * @param sb */ private static void dealExcelStyle(Workbook wb, Sheet sheet, Cell cell, StringBuffer sb){ CellStyle cellStyle = cell.getCellStyle(); if (cellStyle != null) { short alignment = cellStyle.getAlignment(); sb.append("align='" + convertAlignToHtml(alignment) + "' ");//單元格內容的水平對齊方式 short verticalAlignment = cellStyle.getVerticalAlignment(); sb.append("valign='"+ convertVerticalAlignToHtml(verticalAlignment)+ "' ");//單元格中內容的垂直排列方式 if (wb instanceof XSSFWorkbook) { XSSFFont xf = ((XSSFCellStyle) cellStyle).getFont(); short boldWeight = xf.getBoldweight(); sb.append("style='"); sb.append("font-weight:" + boldWeight + ";"); // 字型加粗 sb.append("font-size: " + xf.getFontHeight() / 2 + "%;"); // 字型大小 int topRow = cell.getRowIndex(),topColumn = cell.getColumnIndex(); if(map[0].containsKey(topRow+","+topColumn)){//該單元格為合併單元格，寬度需要獲取所有單元格寬度後合併 String value = (String)map[0].get(topRow+","+topColumn); String[] ary = value.split(","); int bottomColumn = Integer.parseInt(ary[1]); if(topColumn!=bottomColumn){//合併列，需要計算相應寬度 int columnWidth = 0; for(int i=topColumn;i<=bottomColumn;i++){ columnWidth += sheet.getColumnWidth(i); } sb.append("width:" + columnWidth/256*xf.getFontHeight()/20 + "pt;"); }else{ int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()) ; sb.append("width:" + columnWidth/256*xf.getFontHeight()/20 + "pt;"); } }else{ int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()) ; sb.append("width:" + columnWidth/256*xf.getFontHeight()/20 + "pt;"); } XSSFColor xc = xf.getXSSFColor(); if (xc != null && !"".equals(xc)) { sb.append("color:#" + xc.getARGBHex().substring(2) + ";"); // 字型顏色 } XSSFColor bgColor = (XSSFColor) cellStyle.getFillForegroundColorColor(); if (bgColor != null && !"".equals(bgColor)) { sb.append("background-color:#" + bgColor.getARGBHex().substring(2) + ";"); // 背景顏色 } sb.append("border:solid #000000 1px;"); // sb.append(getBorderStyle(0,cellStyle.getBorderTop(), ((XSSFCellStyle) cellStyle).getTopBorderXSSFColor())); // sb.append(getBorderStyle(1,cellStyle.getBorderRight(), ((XSSFCellStyle) cellStyle).getRightBorderXSSFColor())); // sb.append(getBorderStyle(2,cellStyle.getBorderBottom(), ((XSSFCellStyle) cellStyle).getBottomBorderXSSFColor())); // sb.append(getBorderStyle(3,cellStyle.getBorderLeft(), ((XSSFCellStyle) cellStyle).getLeftBorderXSSFColor())); }else if(wb instanceof HSSFWorkbook){ HSSFFont hf = ((HSSFCellStyle) cellStyle).getFont(wb); short boldWeight = hf.getBoldweight(); short fontColor = hf.getColor(); sb.append("style='"); HSSFPalette palette = ((HSSFWorkbook) wb).getCustomPalette(); // 類HSSFPalette用於求的顏色的國際標準形式 HSSFColor hc = palette.getColor(fontColor); sb.append("font-weight:" + boldWeight + ";"); // 字型加粗 sb.append("font-size: " + hf.getFontHeight() / 2 + "%;"); // 字型大小 String fontColorStr = convertToStardColor(hc); if (fontColorStr != null && !"".equals(fontColorStr.trim())) { sb.append("color:" + fontColorStr + ";"); // 字型顏色 } int topRow = cell.getRowIndex(),topColumn = cell.getColumnIndex(); if(map[0].containsKey(topRow+","+topColumn)){//該單元格為合併單元格，寬度需要獲取所有單元格寬度後合併 String value = (String)map[0].get(topRow+","+topColumn); String[] ary = value.split(","); int bottomColumn = Integer.parseInt(ary[1]); if(topColumn!=bottomColumn){//合併列，需要計算相應寬度 int columnWidth = 0; for(int i=topColumn;i<=bottomColumn;i++){ columnWidth += sheet.getColumnWidth(i); } sb.append("width:" + columnWidth/256*hf.getFontHeight()/20 + "pt;"); }else{ int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()) ; sb.append("width:" + columnWidth/256*hf.getFontHeight()/20 + "pt;"); } }else{ int columnWidth = sheet.getColumnWidth(cell.getColumnIndex()) ; sb.append("width:" + columnWidth/256*hf.getFontHeight()/20 + "pt;"); } short bgColor = cellStyle.getFillForegroundColor(); hc = palette.getColor(bgColor); String bgColorStr = convertToStardColor(hc); if (bgColorStr != null && !"".equals(bgColorStr.trim())) { sb.append("background-color:" + bgColorStr + ";"); // 背景顏色 } sb.append("border:solid #000000 1px;"); // sb.append( getBorderStyle(palette,0,cellStyle.getBorderTop(),cellStyle.getTopBorderColor())); // sb.append( getBorderStyle(palette,1,cellStyle.getBorderRight(),cellStyle.getRightBorderColor())); // sb.append( getBorderStyle(palette,3,cellStyle.getBorderLeft(),cellStyle.getLeftBorderColor())); // sb.append( getBorderStyle(palette,2,cellStyle.getBorderBottom(),cellStyle.getBottomBorderColor())); } sb.append("' "); } } /** * 單元格內容的水平對齊方式 * @param alignment * @return */ private static String convertAlignToHtml(short alignment) { String align = "left"; switch (alignment) { case CellStyle.ALIGN_LEFT: align = "left"; break; case CellStyle.ALIGN_CENTER: align = "center"; break; case CellStyle.ALIGN_RIGHT: align = "right"; break; default: break; } return align; } /** * 單元格中內容的垂直排列方式 * @param verticalAlignment * @return */ private static String convertVerticalAlignToHtml(short verticalAlignment) { String valign = "middle"; switch (verticalAlignment) { case CellStyle.VERTICAL_BOTTOM: valign = "bottom"; break; case CellStyle.VERTICAL_CENTER: valign = "center"; break; case CellStyle.VERTICAL_TOP: valign = "top"; break; default: break; } return valign; } private static String convertToStardColor(HSSFColor hc) { StringBuffer sb = new StringBuffer(""); if (hc != null) { if (HSSFColor.AUTOMATIC.index == hc.getIndex()) { return null; } sb.append("#"); for (int i = 0; i < hc.getTriplet().length; i++) { sb.append(fillWithZero(Integer.toHexString(hc.getTriplet()[i]))); } } return sb.toString(); } private static String fillWithZero(String str) { if (str != null && str.length() < 2) { return "0" + str; } return str; } static String[] bordesr={"border-top:","border-right:","border-bottom:","border-left:"}; static String[] borderStyles={"solid ","solid ","solid ","solid ","solid ","solid ","solid ","solid ","solid ","solid","solid","solid","solid","solid"}; private static String getBorderStyle(HSSFPalette palette , int b, short s, short t){ if(s==0)return bordesr[b]+borderStyles[s]+"#d0d7e5 1px;"; String borderColorStr = convertToStardColor( palette.getColor(t)); borderColorStr=borderColorStr==null|| borderColorStr.length()<1?"#000000":borderColorStr; return bordesr[b]+borderStyles[s]+borderColorStr+" 1px;"; } private static String getBorderStyle(int b,short s, XSSFColor xc){ if(s==0)return bordesr[b]+borderStyles[s]+"#d0d7e5 1px;";; if (xc != null && !"".equals(xc)) { String borderColorStr = xc.getARGBHex();//t.getARGBHex(); borderColorStr=borderColorStr==null|| borderColorStr.length()<1?"#000000":borderColorStr.substring(2); return bordesr[b]+borderStyles[s]+borderColorStr+" 1px;"; } return ""; } private static void writeFile(String content, String path) { OutputStream os = null; BufferedWriter bw = null; try { File file = new File(path); os = new FileOutputStream(file); bw = new BufferedWriter(new OutputStreamWriter(os,"GBK")); bw.write(content); } catch (FileNotFoundException fnfe) { fnfe.printStackTrace(); } catch (IOException ioe) { ioe.printStackTrace(); } finally { try { if (bw != null) bw.close(); if (os != null) os.close(); } catch (IOException ie) { ie.printStackTrace(); } } } /** * 獲取Excel圖片公共方法 * @param sheetNum 當前sheet編號 * @param sheet 當前sheet物件 * @param workbook 工作簿物件 * @return Map key:圖片單元格索引（0_1_1）String，value:圖片流PictureData */ public static Map<String, PictureData> getSheetPictrues(int sheetNum, Sheet sheet, Workbook workbook) { if(workbook instanceof HSSFWorkbook){ return getSheetPictrues03(sheetNum, (HSSFSheet) sheet, (HSSFWorkbook) workbook); }else if(workbook instanceof XSSFWorkbook){ return getSheetPictrues07(sheetNum, (XSSFSheet) sheet, (XSSFWorkbook) workbook); }else{ return null; } } /** * 獲取Excel2003圖片 * @param sheetNum 當前sheet編號 * @param sheet 當前sheet物件 * @param workbook 工作簿物件 * @return Map key:圖片單元格索引（0_1_1）String，value:圖片流PictureData * @throws IOException */ private static Map<String, PictureData> getSheetPictrues03(int sheetNum, HSSFSheet sheet, HSSFWorkbook workbook) { Map<String, PictureData> sheetIndexPicMap = new HashMap<String, PictureData>(); List<HSSFPictureData> pictures = workbook.getAllPictures(); if (pictures.size() != 0) { for (HSSFShape shape : sheet.getDrawingPatriarch().getChildren()) { HSSFClientAnchor anchor = (HSSFClientAnchor) shape.getAnchor(); shape.getLineWidth(); if (shape instanceof HSSFPicture) { HSSFPicture pic = (HSSFPicture) shape; int pictureIndex = pic.getPictureIndex() - 1; HSSFPictureData picData = pictures.get(pictureIndex); String picIndex = String.valueOf(sheetNum) + "_" + String.valueOf(anchor.getRow1()) + "_" + String.valueOf(anchor.getCol1()); sheetIndexPicMap.put(picIndex, picData); } } return sheetIndexPicMap; } else { return null; } } /** * 獲取Excel2007圖片 * @param sheetNum 當前sheet編號 * @param sheet 當前sheet物件 * @param workbook 工作簿物件 * @return Map key:圖片單元格索引（0_1_1）String，value:圖片流PictureData */ private static Map<String, PictureData> getSheetPictrues07(int sheetNum, XSSFSheet sheet, XSSFWorkbook workbook) { Map<String, PictureData> sheetIndexPicMap = new HashMap<String, PictureData>(); for (POIXMLDocumentPart dr : sheet.getRelations()) { if (dr instanceof XSSFDrawing) { XSSFDrawing drawing = (XSSFDrawing) dr; List<XSSFShape> shapes = drawing.getShapes(); for (XSSFShape shape : shapes) { XSSFPicture pic = (XSSFPicture) shape; XSSFClientAnchor anchor = pic.getPreferredSize(); CTMarker ctMarker = anchor.getFrom(); String picIndex = String.valueOf(sheetNum) + "_" + ctMarker.getRow() + "_" + ctMarker.getCol(); sheetIndexPicMap.put(picIndex, pic.getPictureData()); } } } return sheetIndexPicMap; } public static void printImg(List<Map<String, PictureData>> sheetList) throws IOException { for (Map<String, PictureData> map : sheetList) { printImg(map); } } public static void printImg(Map<String, PictureData> map) throws IOException { Object key[] = map.keySet().toArray(); for (int i = 0; i < map.size(); i++) { // 獲取圖片流 PictureData pic = map.get(key[i]); // 獲取圖片索引 String picName = key[i].toString(); // 獲取圖片格式 String ext = pic.suggestFileExtension(); byte[] data = pic.getData(); FileOutputStream out = new FileOutputStream("D:\\pic" + picName + "." + ext); out.write(data); out.close(); } } }