这篇文章将介绍如何使用Spire.Presentation for Java提取PowerPoint文档中的文本。

源文档：

import com.spire.presentation.*;

import java.io.FileWriter;

public class ExtractText {
    public static void main(String[] args) throws Exception {

        //创建Presentation实例
        Presentation ppt = new Presentation();
        //加载PowerPoint文档
        ppt.loadFromFile("Input.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());
                    }
                }
            }
        }
        //保存文本到文本文件
        FileWriter writer = new FileWriter("ExtractText.txt");
        writer.write(buffer.toString());
        writer.flush();
        writer.close();
    }
}

输出：