校准本地阿里云文件路径备份

/**
	 * @author: xuebl
	 * @Date: 2022/5/6
	 * @Description: 校准本地阿里云文件路径
	 */
	@RequestMapping(params = "doAliPathEdit")
	@ResponseBody
	public void doAliPathEdit(HttpServletRequest request, ModelMap modelMap, HttpServletResponse response,
						 OutputStream output) throws UnsupportedEncodingException {
		try {
			String endpoint = "http://oss-cn-shanghai.aliyuncs.com";
			// 阿里云主账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM账号进行API访问或日常运维，请登录 https://ram.console.aliyun.com 创建RAM账号。
			String accessKeyId = KEYID;
			String accessKeySecret = KEYsecret;
			String bucketName = 文件夹名;
			/**********************************************************************************************************/

			//获取所有符合条件的附件数据，准备统一刷数据
			String sql = "select id,note,realpath from t_s_attachment \n" +
						 " where ifnull(osspath,'')=''\n" +
						 "   and ifnull(note,'')!=''\n" +
						 " order by createdate desc" ;
			List<Map<String, Object>> list = jdbcTemplate.queryForList(sql);
			int sussesNum = 0;
			for (int i = 0; i < list.size(); i++) {
				Map<String, Object> map = list.get(i);
				String id = "";
				String note = "";
				String realpath = "";
				if(oConvertUtils.isNotEmpty(map.get("id"))){
					id = String.valueOf(map.get("id"));
				}
				if(oConvertUtils.isNotEmpty(map.get("note"))){
					note = String.valueOf(map.get("note"));
				}
				if(oConvertUtils.isNotEmpty(map.get("realpath"))){
					realpath = String.valueOf(map.get("realpath"));
				}
				if(StringUtil.isNotEmpty(id)&&StringUtil.isNotEmpty(note)&&StringUtil.isNotEmpty(realpath)){
					//开始处理
					String fileName = realpath.substring(realpath.lastIndexOf("/"));//获取文件名
					String aliPath = note+fileName; //阿里云路径 是用note拼接 '/'加 文件名得到的
					// 创建OSSClient实例。
					OSSClient ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
					// 列举 该文件下所有的文件
					/*ObjectListing objectListing = ossClient.listObjects(bucketName, "");
					List<OSSObjectSummary> sums = objectListing.getObjectSummaries();
					for (OSSObjectSummary s : sums) {
						System.out.println(s.getKey()+"--"+s.getSize()+"---");
					}*/
					//判断阿里云该路径下文件是否存在
					Boolean result=ossClient.doesObjectExist(bucketName,aliPath);
					//System.out.println(result);
					// 关闭OSSClient。
					ossClient.shutdown();
					if(result){
						//如果存在，则返回阿里云路径保存到本地 附件表的osspath 字段
						Date expiration = new Date(new Date().getTime() + 3600l * 10000 * 24 * 365 * 10);
						//获取文件路径
						URL url2 = ossClient.generatePresignedUrl(bucketName, aliPath, expiration);
						//System.out.println(url2);
						//修改osspath
						sql = " update t_s_attachment set osspath = '"+url2+"' where id= '"+id+"'";
						jdbcTemplate.update(sql);
						sussesNum++;
					}
				}
			}

			System.out.println(">>>>>>>>成功校准"+sussesNum+"条数据");

		} catch (Exception e) {
			e.printStackTrace();
		}
	}