如何使用Java读取PPT文本和图片

import com.spire.presentation.IAutoShape;
import com.spire.presentation.ISlide;
import com.spire.presentation.ParagraphEx;
import com.spire.presentation.Presentation;
import java.io.FileWriter;

public class ExtractText {
 public static void main(String[]args) throws Exception{
  //加载测试文档
  Presentation ppt = new Presentation();
  ppt.loadFromFile("test.pptx");

  StringBuilder buffer = new StringBuilder();

  //遍历文档中的幻灯片，提取文本
  for (Object slide : ppt.getSlides()) {
   for (Object shape : ((ISlide) slide).getShapes()) {
    if (shape instanceof IAutoShape) {
     for (Object tp : ((IAutoShape) shape).getTextFrame().getParagraphs()) {
      buffer.append(((ParagraphEx) tp).getText());
     }
    }
   }
  }
  //保存到文本文件
  FileWriter writer = new FileWriter("ExtractText.txt");
  writer.write(buffer.toString());
  writer.flush();
  writer.close();
 }
}

import com.spire.presentation.Presentation;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;

public class ExtractAllImgs {
 public static void main(String[] args) throws Exception {
  //加载文档
  Presentation ppt = new Presentation();
  ppt.loadFromFile("test.pptx");

  //提取文档中的所有图片
  for (int i = 0; i < ppt.getImages().getCount(); i++) {
   BufferedImage image = ppt.getImages().get(i).getImage();
   ImageIO.write(image, "PNG", new File(String.format("AllImage-%1$s.png", i)));
  }
 }
}

import com.spire.presentation.*;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;

public class ExtractImgsInSpecifiedSlide {
 public static void main(String[]args) throws Exception{
  //加载文档
  Presentation ppt = new Presentation();
  ppt.loadFromFile("test.pptx");

  //获取第2张幻灯片
  ISlide slide = ppt.getSlides().get(1);

  //提取图片
  for(int i = 0; i< slide.getShapes().getCount(); i++)
  {
   IShape shape = slide.getShapes().get(i);
   if(shape instanceof SlidePicture)
   {
    SlidePicture pic = (SlidePicture) shape;
    BufferedImage image = pic.getPictureFill().getPicture().getEmbedImage().getImage();
    ImageIO.write(image, "PNG", new File(String.format("extractImageinslide-%1$s.png", i)));
   }
   if(shape instanceof PictureShape)
   {
    PictureShape ps = (PictureShape) shape;
    BufferedImage image = ps.getEmbedImage().getImage();
    ImageIO.write(image, "PNG", new File(String.format("extractImageinslide-%1$s.png", i)));
   }
  }

 }
}