Java 提取 PPT 中 SmartArt 图形的文本内容

<repositories>
    <repository>
        <id>com.e-iceblue</id>
        <url>http://repo.e-iceblue.cn/repository/maven-public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.presentation.free</artifactId>
        <version>3.9.0</version>
​    </dependency>
</dependencies>

import com.spire.presentation.Presentation;
import com.spire.presentation.diagrams.ISmartArt;
import java.io.*;

public class extractTextFromSmartArt {
    public static void main(String[] args) throws Exception {
        Presentation presentation = new Presentation();
        presentation.loadFromFile("SmartArt.pptx");

        //新建txt文档
        String result = "output/extractTextFromSmartArt.txt";
        File file=new File(result);
        if(file.exists()){
            file.delete();
        }
        file.createNewFile();
        FileWriter fw =new FileWriter(file,true);
        BufferedWriter bw =new BufferedWriter(fw);

        bw.write("以下内容为从SmartArt中提取到的文本:" + "rn");

        //遍历所有幻灯片并获取SmartArt图形.
        for (int i = 0; i < presentation.getSlides().getCount(); i++)
        {
            for (int j = 0; j < presentation.getSlides().get(i).getShapes().getCount(); j++)
            {
                if (presentation.getSlides().get(i).getShapes().get(j) instanceof ISmartArt)
                {
                    ISmartArt smartArt = (ISmartArt)presentation.getSlides().get(i).getShapes().get(j);

                    //提取SmartArt中的文本
                    for (int k = 0; k < smartArt.getNodes().getCount(); k++)
                    {
                        bw.write(smartArt.getNodes().get(k).getTextFrame().getText() + "rn");
                    }
                }
            }
        }
        bw.flush();
        bw.close();
        fw.close();

    }
}