示例代码

excel文件格式 : xlsx

public static Map<String, XSSFPictureData> getPictures(Sheet sheet) throws Exception {Map<String, XSSFPictureData> pictures = new HashMap<>();// 对于XLSX文件if (sheet instanceof XSSFSheet) {XSSFDrawing drawing = ((XSSFSheet) sheet).getDrawingPatriarch();List<XSSFShape> shapes = drawing.getShapes();for (XSSFShape shape : shapes) {if (shape instanceof XSSFPicture) {XSSFPicture picture = (XSSFPicture) shape;XSSFClientAnchor anchor = (XSSFClientAnchor) picture.getAnchor();XSSFPictureData pdata = picture.getPictureData();String key = anchor.getRow1() + "-" + anchor.getCol1();pictures.put(key, pdata);}}}// 对于XLS文件，逻辑类似，使用HSSF相关类return pictures;}public static void savePicture(XSSFPictureData pictureData, String outputPath) throws Exception {String extension = pictureData.suggestFileExtension();byte[] data = pictureData.getData();FileOutputStream out = new FileOutputStream(outputPath + "." + extension);IOUtils.write(data, out);out.close();}public static void main(String[] args) throws Exception {File file = new File("C:\\Users\\Administrator\\Documents\\0708.xlsx");try (InputStream inputStream = new FileInputStream(file)) {Workbook workbook = new XSSFWorkbook(inputStream);Sheet sheet = workbook.getSheetAt(0);Map<String, XSSFPictureData> pictures = getPictures(sheet);for (Map.Entry<String, XSSFPictureData> entry : pictures.entrySet()) {savePicture(entry.getValue(), "D:\\" + entry.getKey());}}}