之前遇到的小问题，记录一下，仅此而已。 ``` private static String imgToBase64(String path) { try { HttpResponse response = HttpRequest.get(path).execute(); if ( null == response) { throw new BizException(CosmosResultCodeEnum.BIZ_FAIL); } return "data:image/jpeg;base64," + Base64.encodeBase64String(response.bodyBytes()); } catch (Exception e) { throw new BuisnessException(CosmosResultCodeEnum.BIZ_FAIL); } } ``` # 20220902更新 base64转 图片 **注意！我们将图片转为 base64 的时候数据前面添加了 `data:image/png;base64,` 这种格式，在转图片时需要将其删掉，不然就会报错。** ```java if (base64Data.startsWith("data:image/png;base64,")) { base64Data = base64Data.replace("data:image/png;base64,", ""); } else if (base64Data.startsWith("data:image/jpeg;base64,")) { base64Data = base64Data.replace("data:image/jpeg;base64,", ""); } else if (base64Data.startsWith("data:image/jpg;base64,")) { base64Data = base64Data.replace("data:image/jpg;base64,", ""); } ``` ```java /** * 将 base64 转为图片，并保存到指定位置 * @param base64 图片数据 * @param filePath 保存位置及文件名 * @throws IOException */ private static void base64ToImg(String base64, String filePath) throws IOException { byte[] bs = new byte[1024]; bs = Base64.getDecoder().decode(base64); BufferedOutputStream bos = null; FileOutputStream fos = null; File file = null; file = new File(filePath); try { fos = new FileOutputStream(file); bos = new BufferedOutputStream(fos); bos.write(bs); } catch (Exception e) { e.printStackTrace(); } finally { if (bos != null) { try { bos.close(); } catch (IOException e) { e.printStackTrace(); } } if (fos != null) { try { fos.close(); } catch (IOException e) { e.printStackTrace(); } } } } ```