Minio:为什么我的PUT请求失败了,即使GET成功了?

我在用 Minio 模拟S3并在本地测试我的代码。我的代码是用 AWS SDK for C++ .

Unable to connect to endpoint . 不过,我可以使用curl将对象放到Minio中。

S3Client (我添加了一些喜欢解释我为什么做这些事情的内容):

auto credentialsProvider = Aws::MakeShared<Aws::Auth::EnvironmentAWSCredentialsProvider>("someTag");
Aws::Client::ClientConfiguration config;
config.endpointOverride = Aws::String("172.17.0.2:9000");
config.scheme = Aws::Http::Scheme::HTTP;
// diable ssl https://github.com/aws/aws-sdk-cpp/issues/284
config.verifySSL = false;
// set region to default https://github.com/awslabs/amazon-kinesis-producer/issues/66
config.region = "us-east-1"; 
// disable virtual adress and signing https://stackoverflow.com/questions/47105289/how-to-override-endpoint-in-aws-sdk-cpp-to-connect-to-minio-server-at-localhost
Aws::S3::S3Client client(credentialsProvider, config, Aws::Client::AWSAuthV4Signer::PayloadSigningPolicy::Never, false); 

这就是我的GET和PUT请求的样子。得到工作,得到不:

// declare request
Aws::S3::Model::GetObjectRequest get_obj_req;
get_obj_req.WithBucket("someBucket").WithKey("someKey");

// Get works fine
auto get_object_outcome = client.GetObject(get_obj_req);
if (!get_object_outcome.IsSuccess()){
    // fail does not happen
}

// write file from Minio to local file (seems to work fine)
int size = 1024;
char buffer[size];
auto &retrieved_file = get_object_outcome.GetResultWithOwnership().GetBody().read(buffer, size);
std::ofstream out("someFile");
out << std::string(buffer);
out.close();

// try to PUT the stored file again
Aws::S3::Model::PutObjectRequest put_obj_req;
const std::shared_ptr<Aws::IOStream> input_data =
    Aws::MakeShared<Aws::FStream>("tag", "someFile", std::ios_base::in | std::ios_base::binary);
put_obj_req.SetBody(input_data);
put_obj_req.WithBucket("someBucket").WithKey("someKey");
put_obj_req.SetContentLength(size);
put_obj_req.SetContentType("application/octet-stream");

// PUT request
auto resp = client.PutObject(put_obj_req);
if (!resp.IsSuccess()){
    // fails here
}

如前所述,我可以使用curl将对象放到Minio中。你可以看看 in this Gist

旁注:我正在使用 Minio inside a Docker container .

编辑: 我相信这可能是我想放的数据有问题。如果数据中有。 Content-Type application/octet-stream 我遇到了一个错误,但在使用txt文件时没有遇到这个错误。我当前的代码是这样的,如果我想流除cher之外的任何东西,我假设流会中断。你能确认吗?

Aws::String content_tye = get_object_outcome.GetResult().GetContentType();
Aws::IOStream &retrieved_file = get_object_outcome.GetResultWithOwnership().GetBody();
retrieved_file.seekg(0, retrieved_file.end);
int retrieved_file_size = retrieved_file.tellg();
retrieved_file.seekg(0, retrieved_file.beg);

char *buffer = new char[retrieved_file_size];
retrieved_file.read(buffer, retrieved_file_size);

AWS_LOGSTREAM_INFO(TAG, "Retrieved file of size: " + Aws::Utils::StringUtils::to_string(retrieved_file_size));

Aws::StringStream stream(Aws::String(buffer));

const std::shared_ptr<Aws::IOStream> input_data =
    Aws::MakeShared<Aws::StringStream>(TAG, Aws::String(buffer));