您可以开启存储空间的访问日志记录功能。开启后对于此存储空间的访问会被记录成日志文件，保存在指定的存储空间中。

日志文件的格式为：

<TargetPrefix><SourceBucket>YYYY-mm-DD-HH-MM-SS-UniqueString

更多关于访问日志的介绍，请参见开发指南中的设置访问日志记录。访问日志的完整代码请参见GitHub。

开启访问日志记录

以下代码用于开启存储空间的访问日志记录：

using Aliyun.OSS;
using Aliyun.OSS.Common;
var endpoint = "<yourEndpoint>";
var accessKeyId = "<yourAccessKeyId>";
var accessKeySecret = "<yourAccessKeySecret>";
var bucketName = "<yourBucketName>";
var targetBucketName = "<yourTargetBucketName>";
// 创建OssClient实例。
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    // targetBucketName为存放日志文件的存储空间，logging-为被保存的访问日志文件前缀。bucketName和targetBucketName可以是同一存储空间。
    var request = new SetBucketLoggingRequest(bucketName, targetBucketName, "logging-");
    // 开启访问日志记录。
    client.SetBucketLogging(request);
    Console.WriteLine("Set bucket:{0} Logging succeeded ", bucketName);
}
catch (OssException ex)
{
    Console.WriteLine("Failed with error info: {0}; Error info: {1}. \nRequestID:{2}\tHostID:{3}",
        ex.ErrorCode, ex.Message, ex.RequestId, ex.HostId);
}
catch (Exception ex)
{
    Console.WriteLine("Failed with error info: {0}", ex.Message);
}

查看访问日志设置

查看访问日志设置完整代码请参见GitHub。

以下代码用于查看存储空间的访问日志设置：

using Aliyun.OSS;
using Aliyun.OSS.Common;
var endpoint = "<yourEndpoint>";
var accessKeyId = "<yourAccessKeyId>";
var accessKeySecret = "<yourAccessKeySecret>";
var bucketName = "<yourBucketName>";
// 创建OssClient实例。
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    // 查看存储空间的访问日志设置。
    var result = client.GetBucketLogging(bucketName);
    Console.WriteLine("Get bucket:{0} Logging succeeded, prefix:{1}", bucketName, result.TargetPrefix);
}
catch (OssException ex)
{
    Console.WriteLine("Failed with error info: {0}; Error info: {1}. \nRequestID:{2}\tHostID:{3}",
        ex.ErrorCode, ex.Message, ex.RequestId, ex.HostId);
}
catch (Exception ex)
{
    Console.WriteLine("Failed with error info: {0}", ex.Message);
}

关闭访问日志记录

关闭访问日志记录完整代码请参见GitHub。

以下代码用于关闭存储空间的访问日志记录：

using Aliyun.OSS;
using Aliyun.OSS.Common;
var endpoint = "<yourEndpoint>";
var accessKeyId = "<yourAccessKeyId>";
var accessKeySecret = "<yourAccessKeySecret>";
var bucketName = "<yourBucketName>";
// 创建OssClient实例。
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    // 关闭访问日志记录，已经存在的日志不受影响。
    client.DeleteBucketLogging(bucketName);
    Console.WriteLine("Delete bucket:{0} Logging succeeded ", bucketName);
}
catch (OssException ex)
{
    Console.WriteLine("Failed with error info: {0}; Error info: {1}. \nRequestID:{2}\tHostID:{3}",
        ex.ErrorCode, ex.Message, ex.RequestId, ex.HostId);
}
catch (Exception ex)
{
    Console.WriteLine("Failed with error info: {0}", ex.Message);
}