使用poi处理ppt 转为图片乱码问题解决

最新推荐文章于 2025-02-19 19:24:47 发布

最新推荐文章于 2025-02-19 19:24:47 发布 · 2k 阅读

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#java poi ppt 字体

本文介绍了一种将PPT文件转换为PNG图片的方法。通过Java代码读取PPT文件内容，修改其中的文字属性（如字体），并将其绘制到图片上进行保存。此过程涉及文件输入输出操作、PPT解析及图像处理。


public int test(String source) {
		FileInputStream is;
		try {
			is = new FileInputStream(source);
			SlideShow ppt = new SlideShow(is);
			is.close();
			Slide[] slides = ppt.getSlides();
			for (int i = 0; i < slides.length; i++) {
				TextRun[] truns = slides[i].getTextRuns();
				for ( int k=0;k<truns.length;k++){
					RichTextRun[] rtruns = truns[k].getRichTextRuns();
					for(int l=0;l<rtruns.length;l++){
						int index = rtruns[l].getFontIndex();
						String name = rtruns[l].getFontName();			
						rtruns[l].setFontIndex(1);
						rtruns[l].setFontName("宋体");					
					}
				}
				Dimension pgsize = ppt.getPageSize();
				BufferedImage img = new BufferedImage(pgsize.width,
						pgsize.height, BufferedImage.TYPE_INT_RGB);
				Graphics2D graphics = img.createGraphics();
				// clear the drawing area
				graphics.setPaint(Color.white);
				graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width,
						pgsize.height));

				// render
				slides[i].draw(graphics);

				// save the output
				FileOutputStream out = new FileOutputStream(
						"e:\\pic\\test\\slide-" + (i + 1) + ".png");
				javax.imageio.ImageIO.write(img, "png", out);
				out.close();
			}

		} catch (Exception e) {
			e.printStackTrace();
		}
		return 0;
	}