通过apache POI检索powerpoint文件（.PPTX）中超链接幻灯片的内容

Question

我正在尝试获取powerpoint文件的文本内容并替换为其他文本。我有一个20张幻灯片的powerpoint文件。其中13,14,15,16张幻灯片有17,18,19和20张幻灯片的超链接。我使用XMLSlideshow遍历幻灯片，但它只提供了16张幻灯片。它没有提供最后4个超链接幻灯片。

任何想法都可以预先提供，我如何获取所有超链接幻灯片的内容，并通过其他文本替换。

这是我的代码。

public static void replaceContentInPPTX（File inputFile，File outputFile）抛出IOException {

    FileInputStream fis = null;

    FileOutputStream fos = null;

    XMLSlideShow ppt = null;

    try{

        fis = new FileInputStream(inputFile);

        fos = new FileOutputStream(outputFile);

        ppt = new XMLSlideShow(fis);

        //  System.out.println("Available slide layouts:"+ppt.getSlideMasters().length);

        /*  for(XSLFSlideMaster master : ppt.getSlideMasters()){

            XSLFShape[] shape = master.getShapes();

            for(XSLFSlideLayout layout : master.getSlideLayouts()){

                System.out.println(layout.getType());

            }

        }*/

        System.out.println("No of slides:"+ppt.getSlides().length); // gives 16 slides.

        for(XSLFSlide slide : ppt.getSlides()) {

for(XSLFShape shape : slide){

                if(shape instanceof XSLFTextShape) {

                    XSLFTextShape txShape = (XSLFTextShape)shape;


                    for (XSLFTextParagraph xslfParagraph : txShape.getTextParagraphs()) {

                        String originalText = replaceUnwantedChar(xslfParagraph.getText());

                        if(! originalText.isEmpty()) {

                            String translation = "";

                            if(translation != null ) {


                                CTRegularTextRun[] ctRegularTextRun = xslfParagraph.getXmlObject().getRArray();

                                for(int index = ctRegularTextRun.length-1; index > 0 ; index--){

xslfParagraph.getXmlObject().removeR(index);
                                }
                                ctRegularTextRun[0].setT(translation);
                            }
                        }
                    }
                }
            }
        }
        ppt.write(fos);
        fos.close();
        fis.close();
    }catch(Exception ex){
        ex.printStackTrace();
    }
}