0 
public void save()
{ Presentation pres = new Presentation(filename);

ISlide slide = pres.getSlides().get_Item(0);

IShape shape= null;


for (int i = 0 ; i < slide.getShapes().size() ; i++)
{    shape = slide.getShapes().get_Item(i);
if (shape.getPlaceholder() != null)
{
((IAutoShape)shape).getTextFrame().setText(txtArea.getText());
}
}


pres.save(filename,SaveFormat.Ppt);

}

此代码用于更改文本，但它不起作用。我一次使用了两个 API，显示代码如下：

public void Display(int currentPage, String source)
    {
        try {
        // Create a slideshow object; this creates an underlying POIFSFileSystem object for us
        SlideShow ppt = new SlideShow(new HSLFSlideShow(source));
        current=currentPage;
        // Get all of the slides from the PPT file
        Slide[] slides = ppt.getSlides();
        Dimension pgsize = ppt.getPageSize();
        all = slides.length;
        String temp="";
        lblPage.setText(currentPage+" / "+all);

            BufferedImage img = new BufferedImage(pgsize.width, pgsize.height, BufferedImage.TYPE_INT_RGB);
            Graphics2D graphics = img.createGraphics();
graphics.setPaint(Color.white);
graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));

//render
slides[currentPage-1].draw(graphics);
//save the output
            /*FileOutputStream out = new FileOutputStream("slide-" + (i + 1) + ".png");
            javax.imageio.ImageIO.write(img, "png", out);
            out.close();
            //ImageIcon icon = new ImageIcon("slide-" + (i + 1) + ".png");*/
            ImageIcon icon = new ImageIcon(img);
            lblPresentasi.setIcon(icon);
// Obtain metrics about the slide: its number and name
            int number = slides[currentPage-1].getSlideNumber();
            String title = slides[currentPage-1].getTitle();
            // Obtain the embedded text in the slide
            TextRun[] textRuns = slides[currentPage-1].getTextRuns();
            System.out.println("Slide " + number + ": " + title);
            System.out.println("\tText Runs");
            txtArea.setText("Slide : " + number + " Title : " + title + "\n");
            for (int j = 0; j < textRuns.length; j++) {
                // Display each of the text runs present on the slide
                System.out.println("\t\t" + j + ": " + textRuns[j].getText());
                temp=txtArea.getText();
                txtArea.setText(temp+"\t\t" + textRuns[j].getText() + "\n");
            }

            // Obtain the notes for this slide
            System.out.println("\tNotes: ");
            Notes notes = slides[currentPage-1].getNotesSheet();
            if (notes != null) {
                // Notes are comprised of an array of text runs
                TextRun[] notesTextRuns = notes.getTextRuns();
                for (int j = 0; j < notesTextRuns.length; j++) {
                    System.out.println("\t\t" + notesTextRuns[j].getText());
                }
            }


    } catch (Exception e) {
        e.printStackTrace();
    }
    }

谁能帮忙，我正在尝试用Java制作一个简单的PowerPoint编辑器。我想更改 textarea 中的文本，按保存按钮，因此必须更改文本并调用显示功能。

4

2 回答 2

0

看来您正在使用 Aspose.Slides，这绝对是满足此类要求的绝佳工具，而我通常使用Free Spire.Presentation for Java，它也可以满足您的需求，请尝试以下代码：

import com.spire.presentation.*;
import java.util.HashMap;
import java.util.Map;

public class ReplaceText {

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

    //create a Presentation object
    Presentation presentation = new Presentation();

    //load the template file
    presentation.loadFromFile("C:\\Users\\Administrator\\Desktop\\input.pptx");

    //get the first slide
    ISlide slide= presentation.getSlides().get(0);

    //create a Map object
    Map map = new HashMap();

    //add several pairs of keys and values to the map
    map.put("#name#","John Smith");
    map.put("#age#","28");
    map.put("#address#","Oklahoma City, United States");
    map.put("#tel#","333 123456");
    map.put("#email#","johnsmith@outlook.com");

    //replace text in the slide
    replaceText(slide,map);

    //save to another file
    presentation.saveToFile("output/ReplaceText.pptx", FileFormat.PPTX_2013);
}

/**
 * Replace text within a slide
 * @param slide Specifies the slide where the replacement happens
 * @param map Where keys are existing strings in the document and values are the new strings to replace the old ones
 */
public static void replaceText(ISlide slide, Map map) {

    for (Object shape : slide.getShapes()
    ) {
        if (shape instanceof IAutoShape) {

            for (Object paragraph : ((IAutoShape) shape).getTextFrame().getParagraphs()
            ) {
                ParagraphEx paragraphEx = (ParagraphEx)paragraph;
                for (String key : map.keySet()
                ) {
                    if (paragraphEx.getText().contains(key)) {

                        paragraphEx.setText(paragraphEx.getText().replace(key, map.get(key)));
                     }
                }
            }
        }
    }
}
}
于 2022-02-07T01:34:49.477 回答
0

我观察了您的示例代码，并愿意分享与 Aspose.Slides 相关的代码，没有问题，而且完全正确。您可以通过在 PowerPoint 中打开已更改文本的已保存演示文稿来验证这一点。如果您在这方面遇到任何问题，我们很乐意为您提供进一步的帮助。您也可以在Aspose.Slides 支持论坛中与我们联系。

我与 Aspose 合作，担任开发人员传道者。

于 2017-02-09T08:03:50.560 回答