对象存储服务 OBS-复制对象:重写对象属性

时间:2024-10-23 16:32:50

重写对象属性

以下代码展示了如何在复制对象时重写对象属性:

// 认证用的ak和sk硬编码到代码中或者明文存储都有很大的安全风险,建议在配置文件或者环境变量中密文存放,使用时解密,确保安全;本示例以ak和sk保存在环境变量中为例,运行本示例前请先在本地环境中设置环境变量AC CES S_KEY_ID和SECRET_ACCESS_KEY_ID。
// 您可以登录访问管理控制台获取访问密钥AK/SK,获取方式请参见https://support.huaweicloud.com/usermanual-ca/ca_01_0003.html
String ak = System.getenv("ACCESS_KEY_ID");
String sk = System.getenv("SECRET_ACCESS_KEY_ID");
String endPoint = "https://your-endpoint";
// 创建ObsClient实例
ObsClient obsClient = new ObsClient(ak, sk, endPoint);

CopyObjectRequest request = new CopyObjectRequest("sourcebucketname", "sourceobjectname", "destbucketname", "destobjectname");
// 设置进行对象属性重写
request.setReplaceMetadata(true);
ObjectMetadata newObjectMetadata = new ObjectMetadata();
newObjectMetadata.setContentType("image/jpeg");
newObjectMetadata.addUserMetadata("property", "property-value");
newObjectMetadata.setObjectStorageClass(StorageClassEnum.WARM);
request.setNewObjectMetadata(newObjectMetadata);
CopyObjectResult result = obsClient.copyObject(request);
Log.i("CopyObject","\t" + result.getEtag());

CopyObjectRequest.setReplaceMetadata需与CopyObjectRequest.setNewObjectMetadata配合使用。

support.huaweicloud.com/sdk-android-devg-obs/obs_26_0605.html