获得和生成二维码，请问为什么EncodeHintType.MARGIN和​writeToPath下面红线，我是缺少什么jar包吗？

Question

BitMatrix bitMatrix = null; try { bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints); } catch (WriterException e1) { e1.printStackTrace(); } String webRoot = System.getProperty("xbz.webapp"); String fileName = user_id +System.currentTimeMillis()+".png"; String filePath = webRoot + "/WEB-INF/qrcode/"+fileName; Path file = new File(filePath).toPath(); try { MatrixToImageWriter.writeToPath(bitMatrix, format, file); } catch (IOException e) { e.printStackTrace(); } try { QiNiuUtil.upload(filePath, fileName); } catch (IOException e) { e.printStackTrace(); System.out.println("七牛上传文件失败"); }finally{ File file2 = new File(filePath); file2.delete(); } return outURL+fileName; }

Answer 1

666666

Answer 2

import包错了或者是缺少jar包，你看看源码呗