art: 设备附件管理，工艺参数，精度参数初始代码添加

zhangherong

2025-03-18 b99e425766ac0e393cf4b47e7e4b989c7c424ced

 lxzn-boot-base-core/src/main/java/org/jeecg/common/util/FileUtil.java

@@ -46,7 +46,7 @@
      if (fileNameNonSuffix == null)
         return null;
      // 获取文件加密名称 1 保证文件唯一 不存在覆盖问题 2 目录下保存文件加密名称 去除文件关键信息
      String encodeFileName = SHA256Util.getSHA256Str(fileNameNonSuffix + System.currentTimeMillis());
      String encodeFileName = SHA256Util.getSHA256Str(fileNameNonSuffix + System.currentTimeMillis()) + "." + suffix;
      Long fileSize = file.getSize();
      boolean b = uploadFile(file, absolutePath, encodeFileName);
      if (!b)
@@ -54,7 +54,7 @@
      FileUploadResult dto = new FileUploadResult();
      dto.setFileName(fileNameNonSuffix);
      dto.setFileEncodeName(encodeFileName);
      dto.setFilePath(relativePath);
      dto.setFilePath(relativePath + encodeFileName);
      dto.setFileSize(fileSize);
      dto.setFileSuffix(suffix);
      return dto;
@@ -67,9 +67,7 @@
   public static void deleteFile(String filePath, String fileName) {
      String absolutePath = fileUploadFolder + "/" + filePath + "/";
      File targetFile = new File(absolutePath, fileName);
      if (null != targetFile && targetFile.isFile()) {
         targetFile.delete();
      }
      targetFile.deleteOnExit();
   }

   public static void downLoadFile(HttpServletResponse response, String fileName, String filePath, String toFileName) {
@@ -115,6 +113,49 @@
      }
   }

   public static void downLoadFile(HttpServletResponse response, String filePath, String toFileName) {
      String absolutePath = fileUploadFolder + filePath;
      File file = new File(absolutePath);
      if (file.exists()) {
         byte[] buffer = new byte[1024];
         FileInputStream fis = null;
         BufferedInputStream bis = null;
         try {
            response.setHeader("Content-Type", "application/octet-stream;charset=utf-8"); // 告诉浏览器输出内容为流
            // response.setHeader("Content-Disposition", "attachment;fileName="+ new
            // String(toFileName.getBytes("UTF-8"),"ISO-8859-1"));
            response.setHeader("Content-Disposition",
                  "attachment;fileName=" + URLEncoder.encode(toFileName, "UTF-8"));
            fis = new FileInputStream(file);
            bis = new BufferedInputStream(fis);
            OutputStream os = response.getOutputStream();
            int i = bis.read(buffer);
            while (i != -1) {
               os.write(buffer, 0, i);
               i = bis.read(buffer);
            }
            os.flush();
         } catch (Exception e) {
            e.printStackTrace();
         } finally {
            if (bis != null) {
               try {
                  bis.close();
               } catch (IOException e) {
               }
            }
            if (fis != null) {
               try {
                  fis.close();
               } catch (IOException e) {
               }
            }
         }
      } else {
         ExceptionCast.cast("文件不存在");
      }
   }

   /**
    * 上传文件工具类
    *