Echarts chart Java backend generates Base64 image format, POI writes Base64 image to Word

Please refer to the previous article for Echarts chart Java backend generation. This article inserts Base64 images into Word documents to
generate ECharts images in the Java background and returns them as Base64 strings_青冘的博客-CSDN博客

 

		
try {
			XWPFParagraph xwpfParagraphimage = doc.createParagraph(); // 创建图片段落
			xwpfParagraphimage.setAlignment(ParagraphAlignment.CENTER);
			XWPFRun xwpfRunimage = xwpfParagraphimage.createRun(); // 创建段落文本
			String jsonData = echartsOption.getJsonDataZCRLQK();//获取OPT的Json配置
			EchartData echartData = new Gson().fromJson(EchartData2Base64.echartToBase64(jsonData), EchartData.class);
			if (echartData.getCode() == 1) {
//   依赖包sun.misc.BASE64Decoder
				BASE64Decoder decoder = new BASE64Decoder();
				byte[] decoderBytes = decoder.decodeBuffer(echartData.getData());
				InputStream imageis = new ByteArrayInputStream(decoderBytes);
				BufferedImage imagebi = ImageIO.read(new ByteArrayInputStream(decoderBytes));
				xwpfRunimage.addPicture(imageis, Document.PICTURE_TYPE_PNG, "",
					Units.pixelToEMU(Math.min(imagebi.getWidth(), 360)), Units.pixelToEMU(Math.min(imagebi.getHeight(), 240)));
			}
		} catch (Exception e) {
			throw new RuntimeException(e);
		}