Java中将Html转图片 |
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方式一
引入Html2Image的Maven依赖 com.github.xuwei-k html2image 0.1.0import gui.ava.html.image.generator.HtmlImageGenerator; public static void main(String[] args) { HtmlImageGenerator imageGenerator = new HtmlImageGenerator(); //加载html模版 imageGenerator.loadHtml(htmlTemplate); //把html写入到图片 imageGenerator.saveAsImage("E:\\hello-world.png"); } 方法二(推荐) gui.ava html2image 2.0.1 import gui.ava.html.parser.HtmlParser; import gui.ava.html.parser.HtmlParserImpl; import gui.ava.html.renderer.ImageRenderer; import gui.ava.html.renderer.ImageRendererImpl; public static void main(String[] args) { HtmlParser htmlParser = new HtmlParserImpl(); htmlParser.loadHtml(HtmlTemplateStr); // html 是我的html代码 ImageRenderer imageRenderer = new ImageRendererImpl(htmlParser); imageRenderer.saveImage("E:\\lcxq1.png"); } static String HtmlTemplateStr = "\t\n" + "\t\t这个是一个div\n" + "\t\t标题\n" + "\t\t\n" + "\t\t\ta\n" + "\t\t\n" + "\t\t\n" + "\t"; 转换jpg变红的问题处理 public class ImageRendererSubImpl extends ImageRendererImpl { public ImageRendererSubImpl(DocumentHolder documentHolder) { super(documentHolder); } private String getImageFormat(String filename) { if (this.getImageFormat() != null) { return this.getImageFormat(); } else { return filename != null ? FormatNameUtil.formatForFilename(filename) : FormatNameUtil.getDefaultFormat(); } } private FSImageWriter getImageWriter(String imageFormat) { FSImageWriter imageWriter = new FSImageWriter(imageFormat); imageWriter.setWriteCompressionMode(this.getWriteCompressionMode()); imageWriter.setWriteCompressionQuality(this.getWriteCompressionQuality()); imageWriter.setWriteCompressionType(this.getWriteCompressionType()); return imageWriter; } public void saveImage(File file) { try { BufferedOutputStream outputStream = new BufferedOutputStream(new FileOutputStream(file)); this.save(outputStream, file.getName(), true); } catch (IOException var3) { throw new RenderException("IOException while rendering image to " + file.getAbsolutePath(), var3); } } public void saveImage(String filename) { this.saveImage(new File(filename)); } private void save(OutputStream outputStream, String filename, boolean closeStream) { try { String imageFormat = this.getImageFormat(filename); FSImageWriter imageWriter = this.getImageWriter(imageFormat); BufferedImage bufferedImage = this.getBufferedImage(getImageType(imageFormat)); imageWriter.write(bufferedImage, outputStream); } catch (IOException var15) { throw new RenderException("IOException while rendering image", var15); } finally { if (closeStream) { try { outputStream.close(); } catch (IOException var14) { ; } } } } /** * 获取图像类型 * 根据图像的格式 */ public int getImageType(String imageFormat){ if ("jpg".equalsIgnoreCase(imageFormat)){ return BufferedImage.TYPE_3BYTE_BGR; } if ("bmp".equalsIgnoreCase(imageFormat)){ return BufferedImage.TYPE_INT_RGB; } return BufferedImage.BITMASK; } }参考： https://blog.csdn.net/superit401/article/details/82629524 https://www.cnblogs.com/zxf330301/p/5666592.html https://www.cnblogs.com/wikid/p/3913070.html https://blog.csdn.net/lijinzhou2017/article/details/88714381 jar包下载：https://download.csdn.net/download/qq_25775675/12511219 方法三(推荐)使用 wkhtmltox 进行转换： https://blog.csdn.net/qq_25775675/article/details/110425304 |
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