我正在尝试使用 java 以编程方式合并一些 pptx 文档。我从本质上想出了如何使用 Apache POI 来做到这一点,但我试图合并的文档不起作用。
经过大量的搜索和反复试验,我发现这是因为 pptx 文档没有主题信息(即,如果我单击 powerpoint 并检查幻灯片母版视图,它是空白的)。如果我转到设计功能区中的主题并选择“办公室主题”或其他主题,然后保存。这些文件将迷人地合并。否则,我会遇到以下错误:
Exception in thread "main" java.lang.IllegalArgumentException: Failed to fetch default style for otherStyle and level=0
at org.apache.poi.xslf.usermodel.XSLFTextParagraph.getDefaultMasterStyle(XSLFTextParagraph.java:1005)
at org.apache.poi.xslf.usermodel.XSLFTextParagraph.fetchParagraphProperty(XSLFTextParagraph.java:1029)
at org.apache.poi.xslf.usermodel.XSLFTextParagraph.isBullet(XSLFTextParagraph.java:654)
at org.apache.poi.xslf.usermodel.XSLFTextParagraph.copy(XSLFTextParagraph.java:1044)
at org.apache.poi.xslf.usermodel.XSLFTextShape.copy(XSLFTextShape.java:631)
at org.apache.poi.xslf.usermodel.XSLFSheet.appendContent(XSLFSheet.java:358)
at com.apsiva.main.Snippet.main(Snippet.java:28)
以下是我运行的代码:
package com.apsiva.main;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.xslf.usermodel.SlideLayout;
import org.apache.poi.xslf.usermodel.XMLSlideShow;
import org.apache.poi.xslf.usermodel.XSLFSlide;
import org.apache.poi.xslf.usermodel.XSLFSlideLayout;
public class Snippet {
/** Merge the pptx files in the array <decks> to the desired destination
* chosen in <outputPath> */
public static void main(String[] args) {
try {
FileInputStream empty = new FileInputStream("C:/Users/Alex/workspace/OutputWorker/tmp/base2.pptx");
XMLSlideShow pptx;
pptx = new XMLSlideShow(empty);
XSLFSlideLayout defaultLayout = pptx.getSlideMasters()[0].getLayout(SlideLayout.TITLE_AND_CONTENT);
FileInputStream is = new FileInputStream("C:/Users/Alex/workspace/OutputWorker/tmp/noWork.pptx");
// FileInputStream is = new FileInputStream("C:/Users/Alex/workspace/OutputWorker/tmp/works2.pptx");
XMLSlideShow src = new XMLSlideShow(is);
is.close();
for (XSLFSlide srcSlide: src.getSlides()){
pptx.createSlide(defaultLayout).appendContent(srcSlide);
}
FileOutputStream out = new FileOutputStream("C:/POI-TEST-OUTPUT.pptx");
pptx.write(out);
out.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
我想让这些文件合并,我相信解决方案是以编程方式将主题分配给文件。怎么做到呢?
谢谢您的考虑!