访问OSS的过程中会产生大量的访问日志。您可以通过日志转存功能将这些日志按照固定命名规则，以小时为单位生成日志文件写入您指定的存储空间（Bucket）。

开启日志转存

以下代码用于开启日志转存功能。

PutBucketLoggingRequest request = new PutBucketLoggingRequest();
// 指定要开启访问日志记录的源Bucket。
request.setBucketName("yourSourceBucketName");
// 指定存储访问日志的目标Bucket。
// 目标Bucket和源Bucket必须属于同一地域。源Bucket和目标Bucket可以是同一个Bucket，也可以是不同的Bucket。
request.setTargetBucketName("yourTargetBucketName");
// 设置日志文件存放的目录。
request.setTargetPrefix("<yourTargetPrefix>");

OSSAsyncTask task = oss.asyncPutBucketLogging(request, new OSSCompletedCallback<PutBucketLoggingRequest, PutBucketLoggingResult>() {
    @Override
    public void onSuccess(PutBucketLoggingRequest request, PutBucketLoggingResult result) {
        OSSLog.logInfo("code::"+result.getStatusCode());
    }

    @Override
    public void onFailure(PutBucketLoggingRequest request, ClientException clientException, ServiceException serviceException) {
         OSSLog.logError("error: "+serviceException.getRawMessage());
    }
});
task.waitUntilFinished();

查看日志转存配置

以下代码用于查看日志转存配置。

GetBucketLoggingRequest request = new GetBucketLoggingRequest();
request.setBucketName("yourSourceBucketName");
OSSAsyncTask task = oss.asyncGetBucketLogging(request, new OSSCompletedCallback<GetBucketLoggingRequest, GetBucketLoggingResult>() {
    @Override
    public void onSuccess(GetBucketLoggingRequest request, GetBucketLoggingResult result) {
        OSSLog.logInfo("info: " + result.getTargetBucketName()+"*"+result.getTargetPrefix());

    }

    @Override
    public void onFailure(GetBucketLoggingRequest request, ClientException clientException, ServiceException serviceException) {
        OSSLog.logError("error: "+serviceException.getRawMessage());

    }
});
task.waitUntilFinished();

关闭日志转存

以下代码用于关闭日志转存功能。

DeleteBucketLoggingRequest request = new DeleteBucketLoggingRequest();
request.setBucketName("yourSourceBucketName");
OSSAsyncTask task = oss.asyncDeleteBucketLogging(request, new OSSCompletedCallback<DeleteBucketLoggingRequest, DeleteBucketLoggingResult>() {
    @Override
    public void onSuccess(DeleteBucketLoggingRequest request, DeleteBucketLoggingResult result) {
        OSSLog.logInfo("code::"+result.getStatusCode());

    }

    @Override
    public void onFailure(DeleteBucketLoggingRequest request, ClientException clientException, ServiceException serviceException) {
        OSSLog.logError("error: "+serviceException.getRawMessage());

    }
});

task.waitUntilFinished();

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