apose-java用的是最新版本

運行工具： idea

代碼：

   Workbook workbook = new Workbook(filepath);
   WorksheetCollection worksheets = workbook.getWorksheets();
   Iterator<Worksheet> it = workbook.getWorksheets().iterator();
   while (it.hasNext()) {
       Worksheet worksheet = it.next();
       worksheet.refreshPivotTables();

   }
   Worksheet worksheet = worksheets.get(sheetIndex);

   String filename = filepath.substring(filepath.lastIndexOf(File.separator), filepath.lastIndexOf("."));
   String fileDir = filepath.substring(0, filepath.lastIndexOf(File.separator));

   String picName = filename + "_" + startPoint + "_" + endPoint + "_" + System.currentTimeMillis() + ".jpg";  // png

   resultPath = fileDir + File.separator + picName;


   System.out.println("resultPath: " + resultPath);
   String printArea = startPoint + ":" + endPoint;
   System.out.println("area: " + printArea);

   worksheet.getPageSetup().setPrintArea(printArea);
   worksheet.getPageSetup().setLeftMargin(1);
   worksheet.getPageSetup().setRightMargin(1);
   worksheet.getPageSetup().setTopMargin(1);
   worksheet.getPageSetup().setBottomMargin(1);
   ImageOrPrintOptions options = new ImageOrPrintOptions();
   options.setOnePagePerSheet(true);
   options.setDesiredSize(2560, 1440);
   options.setImageFormat(ImageFormat.getJpeg());
   // options.setCellAutoFit(true);
   if (OPERATING_SYSTEM.contains("win")) {
       CellsHelper.setFontDir("c:\\windows\\fonts");
   } else {
       CellsHelper.setFontDir("/usr/share/fonts/chinese");
   }

   SheetRender sheetRender = new SheetRender(worksheet, options);
   System.out.println("size -> " + sheetRender.getPageCount());
   for (int i = 0; i < sheetRender.getPageCount(); i++) {
       sheetRender.toImage(i, resultPath);
   }