Apache POI PPT - PPT到图片

• 

  简述

  您可以将演示文稿转换为图像文件。 下面的程序展示了如何去做。

  
  
  import java.awt.Color;
  
  import java.awt.Dimension;
  
  import java.awt.Graphics2D;
  
  import java.awt.geom.Rectangle2D;
  
  import java.awt.image.BufferedImage;
  
  import java.io.File;
  
  import java.io.FileInputStream;
  
  import java.io.FileOutputStream;
  
  import java.io.IOException;
  
  import java.util.List;
  
  import org.apache.poi.xslf.usermodel.XMLSlideShow;
  
  import org.apache.poi.xslf.usermodel.XSLFSlide;
  
  
  
  public class PptToImage {
  
     public static void main(String args[]) throws IOException {
  
        //creating an empty presentation
  
        File file=new File("pptToImage.pptx");
  
        XMLSlideShow ppt = new XMLSlideShow(new FileInputStream(file));
  
        
  
        //getting the dimensions and size of the slide 
  
        Dimension pgsize = ppt.getPageSize();
  
        List<XSLFSlide> slide = ppt.getSlides();
  
        BufferedImage img = null;
  
        for (int i = 0; i < slide.size(); i++) {
  
           img = new BufferedImage(pgsize.width, pgsize.height,BufferedImage.TYPE_INT_RGB);
  
           Graphics2D graphics = img.createGraphics();
  
  
  
           //clear the drawing area
  
           graphics.setPaint(Color.white);
  
           graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));
  
  
  
           //render
  
           slide.get(i).draw(graphics);
  
        }
  
        //creating an image file as output
  
        FileOutputStream out = new FileOutputStream("ppt_image.png");
  
        javax.imageio.ImageIO.write(img, "png", out);
  
        ppt.write(out);
  
        
  
        System.out.println("Image successfully created");
  
        out.close();   
  
     }
  
  }
  
  

  将上述 Java 代码保存为 PpttoPNG.java，然后在命令提示符下编译并执行，如下所示 -

  
  
  $javac PpttoPNG.java
  
  $java PpttoPNG
  
  

  它将编译并执行以生成以下输出 -

  
  
  Image created successfully
  
  

  以下快照显示了作为输入给出的演示文稿 -

  

  下面给出的是在指定位置创建的图像的快照。