Echarts图表Java后端生成Base64图片格式,POI写入Base64图片到Word中

青冘2023-08-09 11:49

Echarts图表Java后端生成请看上篇，此篇为Base64图片插入Word文档中
Java后台生成ECharts图片,并以Base64字符串返回_青冘的博客-CSDN博客

java 复制代码

		
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);
		}