查看生命周期规则

开发过程中，您有任何问题可以在github上提交issue，或者在华为云对象存储服务论坛中发帖求助。接口参考文档详细介绍了每个接口的参数和使用方法。

您可以通过ObsClient.GetBucketLifecycle查看桶的生命周期规则。以下代码展示了如何查看桶的生命周期规则：

// 初始化配置参数
ObsConfig config = new ObsConfig();
config.Endpoint = "https://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.html
string accessKey= Environment.GetEnvironmentVariable("AccessKeyID", EnvironmentVariableTarget.Machine);
string secretKey= Environment.GetEnvironmentVariable("SecretAccessKey", EnvironmentVariableTarget.Machine);
// 创建ObsClient实例
ObsClient client = new ObsClient(accessKey, secretKey, config);
// 查看桶的生命周期
try
{
    GetBucketLifecycleRequest request = new GetBucketLifecycleRequest();
    request.BucketName = "bucketname";
    GetBucketLifecycleResponse response = client.GetBucketLifecycle(request);
    foreach (LifecycleRule lifecycleRule in response.Configuration.Rules)
    {
        Console.WriteLine("Lifecycle rule id: {0}", lifecycleRule.Id);
        Console.WriteLine("Lifecycle rule prefix: {0}", lifecycleRule.Prefix);
        Console.WriteLine("Lifecycle rule status: {0}", lifecycleRule.Status);
        if (null != lifecycleRule.Expiration)
        {
            Console.WriteLine("expiration days: {0}", lifecycleRule.Expiration.Days);
        }
        if (null != lifecycleRule.NoncurrentVersionExpiration)
        {
            Console.WriteLine("NoncurrentVersionExpiration NoncurrentDays: {0}", lifecycleRule.NoncurrentVersionExpiration.NoncurrentDays);
        }
        foreach (Transition transition in lifecycleRule.Transitions)
        {
            Console.WriteLine("Transition Days : {0}", transition.Days);
            Console.WriteLine("Transition StorageClass : {0}", transition.StorageClass);
        }
        foreach (NoncurrentVersionTransition noncurrentVersionTransition in lifecycleRule.NoncurrentVersionTransitions)
        {
            Console.WriteLine("NoncurrentVersionTransition NoncurrentDays: {0}", noncurrentVersionTransition.NoncurrentDays);
            Console.WriteLine("NoncurrentVersionTransition StorageClass : {0}", noncurrentVersionTransition.StorageClass);
        }
        Console.WriteLine("Get bucket lifecycle response: {0}", response.StatusCode);
    }
}
catch (ObsException ex)
{
    Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);
    Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);
}