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。