您可以使用 XSLFShape 类的 getShapeName()方法计算演示文稿中使用的形状数.以下是从演示文稿中读取形状的程序 :
import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import org.apache.poi.xslf.usermodel.XMLSlideShow;import org.apache.poi.xslf.usermodel.XSLFShape;import org.apache.poi.xslf.usermodel.XSLFSlide;public class ReadingShapes { public static void main(String args[]) throws IOException { //creating a slideshow File file = new File("shapes.pptx"); XMLSlideShow ppt = new XMLSlideShow(new FileInputStream(file)); //get slides XSLFSlide[] slide = ppt.getSlides(); //getting the shapes in the presentation System.out.println("Shapes in the presentation:"); for (int i = 0; i < slide.length; i++){ XSLFShape[] sh = slide[i].getShapes(); for (int j = 0; j < sh.length; j++){ //name of the shape System.out.println(sh[j].getShapeName()); } } FileOutputStream out = new FileOutputStream(file); ppt.write(out); out.close(); }}将上述Java代码保存为 ReadingShapes.java ，然后编译并执行它来自命令提示符，如下所示 :
$javac ReadingShapes.java$java ReadingShapes
它将编译并执行以生成以下输出.
Shapes in the presentation: Rectangle 1Oval 1Isosceles Triangle 1
新添加的具有各种形状的幻灯片显示如下 :
