MinIO——分布式对象存储服务器。
它是一个是一个高性能的对象存储服务器,用于构建云存储解决方案,出于工作需求用到了这个MinIO来管理文件。
但,我用的是Qt,c++语言,并且使用环境是windows,可MinIO的C++ SDK只能Linux使用,不支持Windows,如果非要自己编译Windows版本的话估计得踩不少坑,放过自己吧。
最后只能折中于使用AWS SDK for C++,好在MinIO是兼容AWS SDK的?
安装vcpkg
先安装AWS SDK for C++,需要先安装vcpkg:
git clone https://github.com/Microsoft/vcpkg.git
cd vcpkg
./bootstrap-vcpkg.bat
等安装完成后,将vcpkg的环境加入系统环境变量,这样才能在cmd窗口随意使用vcpkg命令。
右键“我的电脑” >> 属性 >> 高级系统设置 >> 环境变量 >> 系统变量>> path
双击“path”把vcpkg的环境加入其中。
添加完成后,一路点击“确定”按钮退出界面。
安装AWS SDK for C++
按下win+R输入cmd回车,打开窗口后,输入以下命令:
vcpkg search aws-sdk-cpp
vcpkg install aws-sdk-cpp[s3]:x64-windows
这里可能会因为网络问题下载包失败,失败后重来,总会成功的。
等成功安装后,会在vcpkg中看到这样一个路径:D:\Soft\vcpkg\vcpkg\installed\x64-windows
这里面lib、include、bin文件夹中的内容,就是我们需要的。
创建Qt项目
随便创建一个qt项目,在pro文件中加入:
INCLUDEPATH += D:/Soft/vcpkg/vcpkg/installed/x64-windows/include
LIBS += -LD:/Soft/vcpkg/vcpkg/installed/x64-windows/lib -laws-cpp-sdk-core -laws-c-auth -laws-c-cal -laws-c-common \
-laws-c-compression -laws-c-event-stream -laws-checksums -laws-c-http -laws-c-io \
-laws-cpp-sdk-dynamodb -laws-cpp-sdk-kinesis -laws-cpp-sdk-s3 -laws-crt-cpp
对接MinIO
使用aws-sdk-cpp的接口,连接MinIO服务器,要确保服务器已打开。
完成功能:连接服务器、创建Bucket、列出Buckets的名字、上传文件、下载文件、删除文件、删除Bucket。文章来源:https://www.toymoban.com/news/detail-787530.html
#include <QFile>
#include <aws/core/Aws.h>
#include <aws/s3/S3Client.h>
#include <aws/s3/model/GetObjectRequest.h>
#include <aws/s3/model/PutObjectRequest.h>
#include <aws/s3/model/DeleteObjectRequest.h>
#include <aws/s3/model/CreateBucketRequest.h>
#include <aws/s3/model/DeleteBucketRequest.h>
#include <aws/core/auth/AWSCredentialsProviderChain.h>
void DemoQML::initMinIO()
{
// 连接服务器
Aws::SDKOptions options;
options.loggingOptions.logLevel = Aws::Utils::Logging::LogLevel::Debug;
Aws::InitAPI(options);
Aws::Client::ClientConfiguration cfg;
cfg.endpointOverride = "127.0.0.1:9000";
cfg.scheme = Aws::Http::Scheme::HTTP;
cfg.verifySSL = false;
Aws::Auth::AWSCredentials cred("hualongxunda", "hualongxunda");
Aws::S3::S3Client client(cred, cfg, Aws::Client::AWSAuthV4Signer::PayloadSigningPolicy::Always, false,
Aws::S3::US_EAST_1_REGIONAL_ENDPOINT_OPTION::NOT_SET);
std::string fileName = "2104616062021073019firstpush_00004893_OK.bmp";
std::string BucketName = "mybucket";
// 创建Bucket
Aws::S3::Model::CreateBucketRequest create_bucket_request;
create_bucket_request.SetBucket(BucketName);
create_bucket_request.SetCreateBucketConfiguration({});
auto create_bucket_outcome = client.CreateBucket(create_bucket_request);
if (create_bucket_outcome.IsSuccess()) {
qDebug() << "Bucket created successfully.";
} else {
qDebug() << "Failed to create bucket: " <<
create_bucket_outcome.GetError().GetMessage().c_str();
Aws::ShutdownAPI(options);
return;
}
// 列出Buckets的名字
auto response = client.ListBuckets();
if (response.IsSuccess()) {
auto buckets = response.GetResult().GetBuckets();
for (auto iter = buckets.begin(); iter != buckets.end(); ++iter) {
qDebug() << "--" << iter->GetName().c_str()
<< iter->GetCreationDate().ToLocalTimeString(Aws::Utils::DateFormat::ISO_8601).c_str();
}
}
// 上传文件
QFile file(QString::fromStdString(fileName));
file.open(QIODevice::ReadOnly);
Aws::S3::Model::PutObjectRequest putObjectRequest;
putObjectRequest.WithBucket(BucketName.c_str()).WithKey(fileName.c_str());
std::shared_ptr<Aws::IOStream> input_data = Aws::MakeShared<Aws::StringStream>("PutObjectInputStream");
*input_data << file.readAll().toStdString();
file.close();
putObjectRequest.SetBody(input_data);
auto putObjectResult = client.PutObject(putObjectRequest);
if (putObjectResult.IsSuccess())
{
qDebug() << "upload file success!";
}
else
{
qDebug() << "upload file error: " <<
putObjectResult.GetError().GetExceptionName().c_str() << " " <<
putObjectResult.GetError().GetMessage().c_str();
Aws::ShutdownAPI(options);
return;
}
// 下载文件
Aws::S3::Model::GetObjectRequest object_request;
object_request.WithBucket(BucketName.c_str()).WithKey(fileName.c_str());
auto get_object_outcome = client.GetObject(object_request);
if (get_object_outcome.IsSuccess())
{
Aws::IOStream &local_file = get_object_outcome.GetResult().GetBody();
if (!local_file) {
qDebug() << "Error opening file";
Aws::ShutdownAPI(options);
return;
}
std::istreambuf_iterator<char> begin(local_file);
std::istreambuf_iterator<char> end;
std::string buffer(begin, end); // 读取整个文件内容
QFile file_(QString::fromStdString("./test/"+fileName));
if(file_.open(QIODevice::ReadWrite | QIODevice::Truncate)){
file_.write(QByteArray::fromStdString(buffer));
file_.close();
}
qDebug() << "download success!";
}
else
{
std::cout << "GetObject error: " <<
get_object_outcome.GetError().GetExceptionName() << " " <<
get_object_outcome.GetError().GetMessage() << std::endl;
}
// 删除文件
Aws::S3::Model::DeleteObjectRequest delete_object_request;
delete_object_request.WithBucket(BucketName.c_str()).WithKey(fileName.c_str());
auto delete_object_outcome = client.DeleteObject(delete_object_request);
if (delete_object_outcome.IsSuccess()) {
qDebug() << "File deleted successfully.";
} else {
qDebug() << "Failed to delete file: " <<
delete_object_outcome.GetError().GetMessage().c_str();
}
// 删除Bucket,一定要先删除文件,再删除Bucket
Aws::S3::Model::DeleteBucketRequest delete_bucket_request;
delete_bucket_request.SetBucket(BucketName.c_str());
auto delete_bucket_outcome = client.DeleteBucket(delete_bucket_request);
if (delete_bucket_outcome.IsSuccess()) {
qDebug() << "Bucket deleted successfully.";
} else {
qDebug() << "Failed to delete bucket: " <<
delete_bucket_outcome.GetError().GetMessage().c_str();
}
Aws::ShutdownAPI(options);
}
运行
编译release版本后,如果运行失败,可以将D:\Soft\vcpkg\vcpkg\installed\x64-windows\bin 目录下有用到的dll文件,复制到qt程序的exe同级目录下。
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