在Java编程中,如何将PPT的幻灯片转换为图片?
注意:需要访问网址: , 下载一个Apache POI软件包。这里下载最新版本:poi-bin-3.17-0915.tar.gz解压并全部导入 。
需要导入全部包,如下图所示 –
以下是使用Java将PPT的幻灯片转换为图片的程序。
package com.yiibai; 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("addingimage.pptx"); XMLSlideShow ppt = new XMLSlideShow(new FileInputStream(file)); // getting the dimensions and size of the slide Dimension pgsize = ppt.getPageSize(); List 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(); } }
执行上面示例代码,得到以下结果 –
Image successfully created
这就创建一个PPT文件:addingimage.pptx了,如下所示 –
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