使用 Java 将文件 .pptx 转换为 .ppt

Question

我想知道是否有人知道一种使用 Java 将 .pptx 转换为 .ppt 的方法？

Answer 1

使用 Apache POI。

Answer 2

可以使用openoffice进行转换。您必须正确配置 eclipse/netbeans。您还需要 jodconverter 插件。
哦，记得以聆听模式打开OO

package openofficeconv;
import java.io.File;
import java.net.ConnectException;

import com.artofsolving.jodconverter.DocumentConverter;
import com.artofsolving.jodconverter.openoffice.connection.*;
import com.artofsolving.jodconverter.openoffice.converter.OpenOfficeDocumentConverter;

public class PowerpointConverter{

public static void main(String[] args) {

    File inputFile = new File("j.pptx");
    File outputFile = new File("j.pdf");

    // connect to an OpenOffice.org instance running on port 8100
    OpenOfficeConnection connection = new SocketOpenOfficeConnection(8100);
    try {
        connection.connect();
    } catch (ConnectException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    // convert
    DocumentConverter converter = new OpenOfficeDocumentConverter(connection);
    converter.convert(inputFile, outputFile);

    // close the connection
    connection.disconnect();
}
}

Answer 3

Aspose Slides 是我唯一的库看过就懂pptx。它不是免费的，但它可能有能力进行转换。 Apache POI 是一个免费的 ppt Java 库，但上次我检查它不支持 pptx。

更新：这是我使用 Aspose 提取图像的方法。一旦获得 png 文件，您应该能够使用其他工具构建 PDF。我需要明确大小的图像 - 你也许可以将其获取为原始大小：

Dimension small = new Dimension(160, 120);
Dimension medium = new Dimension(200,150);
Dimension large = new Dimension(400,300);

for (Slide slide : presentation.getSlides()) {
  String path = FileService.getUploadPath() + slide.getPath();
  com.aspose.slides.Slide pptSlide = ppt.getSlideByPosition(slide.getSequence());
  ImageIO.write(pptSlide.getThumbnail(1, 1), "png", new File(path));

  path = FileService.getUploadPath() + slide.getSmallPath();
  ImageIO.write(pptSlide.getThumbnail(small), "png", new File(path));

  path = FileService.getUploadPath() + slide.getMediumPath();
  ImageIO.write(pptSlide.getThumbnail(medium), "png", new File(path));

  path = FileService.getUploadPath() + slide.getLargePath();
  ImageIO.write(pptSlide.getThumbnail(large), "png", new File(path));
}