对象存储服务 OBS-设置生命周期规则:设置对象转换策略

时间：2025-02-12 15:02:06

对象存储服务 OBS

设置对象转换策略

以下代码展示了如何设置最新版本对象和历史版本对象的转换策略：

 static OBSClient *client; NSString *endPoint = @"your-endpoint"; // 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AccessKeyID和SecretAccessKey。// 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.htmlchar* ak_env = getenv("AccessKeyID");char* sk_env = getenv("SecretAccessKey");NSString *AK = [NSString stringWithUTF8String:ak_env];NSString *SK = [NSString stringWithUTF8String:sk_env];    // 初始化身份验证OBSStaticCredentialProvider *credentialProvider = [[OBSStaticCredentialProvider alloc] initWithAccessKey:AK secretKey:SK];    //初始化服务配置OBSServiceConfiguration *conf = [[OBSServiceConfiguration alloc] initWithURLString:endPoint credentialProvider:credentialProvider];    // 初始化clientclient = [[OBSClient alloc] initWithConfiguration:conf];    // 设置一条规则OBSLifecycleRule *rule = [[OBSLifecycleRule alloc] initWithID:@"delete-2-days" prefix:@"test/" status:OBSLifecycleStatusEnabled];// 创建30天后转换成低频访问存储OBSLifecycleTransition* transitionStandard = [[OBSLifecycleTransition alloc]initWithDays:[NSNumber numberWithInteger:30] storageClass:OBSStorageClassStandardIA];// 创建60天后转换成指定存储OBSLifecycleTransition* transitionGlacier= [[OBSLifecycleTransition alloc]initWithDays:[NSNumber numberWithInteger:60] storageClass:OBSStorageClassGlacier];// 30天后历史版本转换成标准存储OBSLifecycleNoncurrentVersionTransition* noncurrentTransistionStandard = [[OBSLifecycleNoncurrentVersionTransition alloc]initWithDays:[NSNumber numberWithInteger:30] storageClass:OBSStorageClassStandardIA];//60天后历史版本转换成归档存储OBSLifecycleNoncurrentVersionTransition* noncurrentTransistionGlacier= [[OBSLifecycleNoncurrentVersionTransition alloc]initWithDays:[NSNumber numberWithInteger:60] storageClass:OBSStorageClassGlacier];    [rule.transitionList addObject:transitionStandard];[rule.transitionList addObject:transitionGlacier];    [rule.noncurrentVersionTransitionList addObject:noncurrentTransistionStandard];[rule.noncurrentVersionTransitionList addObject:noncurrentTransistionGlacier];    rule.expiration = expiration;rule.noncurrentVersionExpiration  = noncurrentExpiration;    OBSSetBucketLifecycleRequest *request = [[OBSSetBucketLifecycleRequest alloc]initWithBucketName:@"bucketname" ];[request.lifecycleRuleList addObject: rule];OBSLifecycleRule* rule2 = [rule copy];rule2.ID = @"123";rule2.prefix = @"test1/";[request.lifecycleRuleList addObject: rule2];     [client setBucketLifecycle:request completionHandler:^(OBSSetBucketLifecycleResponse *response, NSError *error){        NSLog(@"%@",response); }];

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