java poi ppt转图片

pom文件添加

        <dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>3.12</version></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi-scratchpad</artifactId><version>3.12</version></dependency>

ppt转图片工具类

public class PPTtoImageUtils {private static final Logger logger = LoggerFactory.getLogger(PPTtoImageUtils.class);//支持pptxpublic static List<String> pptxToImage(MultipartFile file, String bucket) {String originalFileName = file.getOriginalFilename();String rootPath = bucket + "/" + System.currentTimeMillis();List<String> urlList = Lists.newArrayList();try {InputStream is = file.getInputStream();XMLSlideShow ppt = new XMLSlideShow(is);is.close();Dimension pgsize = ppt.getPageSize();logger.info("pptx to image file [name:{}] [width:{}] [height:{}]", originalFileName, pgsize.width, pgsize.height);for (int i = 0; i < ppt.getSlides().size(); i++) {//防止中文乱码for (XSLFShape shape : ppt.getSlides().get(i).getShapes()) {if (shape instanceof XSLFTextShape) {XSLFTextShape tsh = (XSLFTextShape) shape;for (XSLFTextParagraph p : tsh) {for (XSLFTextRun r : p) {r.setFontFamily("宋体");}}}}BufferedImage img = new BufferedImage(pgsize.width, pgsize.height, BufferedImage.TYPE_INT_RGB);Graphics2D graphics = img.createGraphics();// clear the drawing areagraphics.setPaint(Color.white);graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));// renderppt.getSlides().get(i).draw(graphics);// save the outputString filename =  (i + 1) + ".png";// 创建输出流ByteArrayOutputStream bos = new ByteArrayOutputStream();// 将图像输出到输出流中。ImageIO.write(img, "png", bos);MultipartFile multipartFile = new MockMultipartFile(filename, filename, "image/png", bos.toByteArray());//上传到ossString url = UploadUtils.simpleUpload(multipartFile, rootPath);urlList.add(url);}} catch (Exception e) {logger.error("pptx to image error [name:{}][e:{}] ", originalFileName,e);throw new BusinessException(ErrorCode.PPT_TO_IMAGE_ERROR);}logger.info("pptx to image success [name:{}] ", originalFileName);return urlList;}//支持pptpublic static List<String> pptToImage(MultipartFile file, String bucket) {String originalFileName = file.getOriginalFilename();String rootPath = bucket + "/" + System.currentTimeMillis();List<String> urlList = Lists.newArrayList();try {InputStream is = file.getInputStream();HSLFSlideShow ppt = new HSLFSlideShow(new HSLFSlideShowImpl(is));Dimension pgsize = ppt.getPageSize();for (int i = 0; i < ppt.getSlides().size(); i++) {//防止中文乱码for (HSLFShape shape : ppt.getSlides().get(i).getShapes()) {if (shape instanceof HSLFTextShape) {HSLFTextShape tsh = (HSLFTextShape) shape;for (HSLFTextParagraph p : tsh) {for (HSLFTextRun r : p) {r.setFontFamily("宋体");}}}}BufferedImage img = new BufferedImage(pgsize.width, pgsize.height, BufferedImage.TYPE_INT_RGB);Graphics2D graphics = img.createGraphics();// clear the drawing areagraphics.setPaint(Color.white);graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));// renderppt.getSlides().get(i).draw(graphics);String filename =  (i + 1) + ".png";// 创建输出流ByteArrayOutputStream bos = new ByteArrayOutputStream();// 将图像输出到输出流中。ImageIO.write(img, "png", bos);MultipartFile multipartFile = new MockMultipartFile(filename, filename, "image/png", bos.toByteArray());//上传到ossString url = UploadUtils.simpleUpload(multipartFile, rootPath);urlList.add(url);}logger.info("ppt to image success [name:{}] ", originalFileName);return urlList;} catch (Exception e) {logger.error("ppt to image error [name:{}] [e:{}]", originalFileName,e);throw new BusinessException(ErrorCode.PPT_TO_IMAGE_ERROR);}}

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