有人可以提供一个示例，说明如何使用Google.Apis.Storage.v1将文件上传到c＃中的google云存储？
答案 0 :(得分：10)
我发现这个基本操作并不像你想象的那样直截了当。谷歌关于它的存储API的文档缺乏有关在C＃（或任何其他.NET语言）中使用它的信息。在c＃中搜索“如何将文件上传到Google云存储”并没有完全帮助我，所以这是我的工作解决方案，并附有一些评论：
<强>制备
您需要在Google Developers Console中创建OAuth2帐户 - 转到Project / API＆amp; AUTH /证书。
复制客户端ID＆amp;客户端对您的代码的秘密。您还需要您的项目名称。
代码（假设您已通过NuGet添加了Google.Apis.Storage.v1）：
首先，您需要授权您的请求：
var clientSecrets = new ClientSecrets();
clientSecrets.ClientId = clientId;
clientSecrets.ClientSecret = clientSecret;
//there are different scopes, which you can find here https://cloud.google.com/storage/docs/authentication
var scopes = new[] {@"https://www.googleapis.com/auth/devstorage.full_control"};
var cts = new CancellationTokenSource();
var userCredential = await GoogleWebAuthorizationBroker.AuthorizeAsync(clientSecrets,scopes, "yourGoogle@email", cts.Token);
有时您可能还想通过以下方式刷新授权令牌：
await userCredential.RefreshTokenAsync(cts.Token);
您还需要创建存储服务：
var service = new Google.Apis.Storage.v1.StorageService();
现在您可以向Google Storage API发出请求。 让我们从创建一个新桶开始：
var newBucket = new Google.Apis.Storage.v1.Data.Bucket()
{
Name = "your-bucket-name-1"
};
var newBucketQuery = service.Buckets.Insert(newBucket, projectName);
newBucketQuery.OauthToken = userCredential.Result.Token.AccessToken;
//you probably want to wrap this into try..catch block
newBucketQuery.Execute();
它已经完成了。现在，您可以发送请求以获取所有存储桶的列表：
var bucketsQuery = service.Buckets.List(projectName);
bucketsQuery.OauthToken = userCredential.Result.Token.AccessToken;
var buckets = bucketsQuery.Execute();
上一部分上传新文件：
//enter bucket name to which you want to upload file
var bucketToUpload = buckets.Items.FirstOrDefault().Name;
var newObject = new Object()
{
Bucket = bucketToUpload,
Name = "some-file-"+new Random().Next(1,666)
};
FileStream fileStream = null;
try
{
var dir = Directory.GetCurrentDirectory();
var path = Path.Combine(dir, "test.png");
fileStream = new FileStream(path, FileMode.Open);
var uploadRequest = new Google.Apis.Storage.v1.ObjectsResource.InsertMediaUpload(service, newObject,
bucketToUpload,fileStream,"image/png");
uploadRequest.OauthToken = userCredential.Result.Token.AccessToken;
await uploadRequest.UploadAsync();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
if (fileStream != null)
{
fileStream.Dispose();
}
}
和bam！新文件将显示在所选存储桶内的Google Developers Console中。
答案 1 :(得分：4)
您可以通过以下方式使用不带SDK的Google Cloud API：
网址详细信息：
“ GoogleCloudStorageBaseUrl”：“ https://www.googleapis.com/upload/storage/v1/b/”， “ GoogleSpeechBaseUrl”：“ https://speech.googleapis.com/v1/operations/”， “ GoogleLongRunningRecognizeBaseUrl”：“ https://speech.googleapis.com/v1/speech:longrunningrecognize”， “ GoogleCloudScope”：“ https://www.googleapis.com/auth/cloud-platform”，
public void GetConfiguration()
{
// Set global configuration
bucketName = _configuration.GetValue<string>("BucketName");
googleCloudStorageBaseUrl = _configuration.GetValue<string>("GoogleCloudStorageBaseUrl");
googleSpeechBaseUrl = _configuration.GetValue<string>("GoogleSpeechBaseUrl");
googleLongRunningRecognizeBaseUrl = _configuration.GetValue<string>("GoogleLongRunningRecognizeBaseUrl");
// Set google cloud credentials
string googleApplicationCredentialsPath = _configuration.GetValue<string>("GoogleCloudCredentialPath");
using (Stream stream = new FileStream(googleApplicationCredentialsPath, FileMode.Open, FileAccess.Read))
googleCredential = GoogleCredential.FromStream(stream).CreateScoped(_configuration.GetValue<string>("GoogleCloudScope"));
}
获取Oauth令牌：
public string GetOAuthToken()
{
return googleCredential.UnderlyingCredential.GetAccessTokenForRequestAsync("https://accounts.google.com/o/oauth2/v2/auth", CancellationToken.None).Result;
}
要将文件上传到云存储桶：
public async Task<string> UploadMediaToCloud(string filePath, string objectName = null)
{
string bearerToken = GetOAuthToken();
byte[] fileBytes = File.ReadAllBytes(filePath);
objectName = objectName ?? Path.GetFileName(filePath);
var baseUrl = new Uri(string.Format(googleCloudStorageBaseUrl + "" + bucketName + "/o?uploadType=media&name=" + objectName + ""));
using (WebClient client = new WebClient())
{
client.Headers.Add(HttpRequestHeader.Authorization, "Bearer " + bearerToken);
client.Headers.Add(HttpRequestHeader.ContentType, "application/octet-stream");
byte[] response = await Task.Run(() => client.UploadData(baseUrl, "POST", fileBytes));
string responseInString = Encoding.UTF8.GetString(response);
return responseInString;
}
}
要对云API执行任何操作，只需按照要求发出HttpClient获取/发布请求即可。
谢谢
答案 2 :(得分：3)
这适用于Google.Cloud.Storage.V1（不是Google.Apis.Storage.v1），但现在执行上传似乎更简单一些。我从Client libraries "Getting Started" instructions开始创建服务帐户和存储桶，然后进行实验以了解如何上传图像。
我遵循的流程是：
GOOGLE_APPLICATION_CREDENTIALS的环境变量中 - 我无法通过提供的说明进行操作。事实证明它不是必需的，因为您可以将JSON文件读入字符串并将其传递给客户端构造函数。ViewModel来容纳应用程序逻辑。 Google.Cloud.Storage.V1 nuget包，它应该引入所需的所有依赖项。代码。
MainWindow.xaml
<StackPanel>
<Button
Margin="50"
Height="50"
Content="BEGIN UPLOAD"
Click="OnButtonClick" />
<ContentControl
Content="{Binding Path=ProgressBar}" />
</StackPanel>
MainWindow.xaml.cs
public partial class MainWindow
{
readonly ViewModel _viewModel;
public MainWindow()
{
_viewModel = new ViewModel(Dispatcher);
DataContext = _viewModel;
InitializeComponent();
}
void OnButtonClick(object sender, RoutedEventArgs args)
{
_viewModel.UploadAsync().ConfigureAwait(false);
}
}
ViewModel.cs
public class ViewModel
{
readonly Dispatcher _dispatcher;
public ViewModel(Dispatcher dispatcher)
{
_dispatcher = dispatcher;
ProgressBar = new ProgressBar {Height=30};
}
public async Task UploadAsync()
{
// Google Cloud Platform project ID.
const string projectId = "project-id-goes-here";
// The name for the new bucket.
const string bucketName = projectId + "-test-bucket";
// Path to the file to upload
const string filePath = @"C:\path\to\image.jpg";
var newObject = new Google.Apis.Storage.v1.Data.Object
{
Bucket = bucketName,
Name = System.IO.Path.GetFileNameWithoutExtension(filePath),
ContentType = "image/jpeg"
};
// read the JSON credential file saved when you created the service account
var credential = Google.Apis.Auth.OAuth2.GoogleCredential.FromJson(System.IO.File.ReadAllText(
@"c:\path\to\service-account-credentials.json"));
// Instantiates a client.
using (var storageClient = Google.Cloud.Storage.V1.StorageClient.Create(credential))
{
try
{
// Creates the new bucket. Only required the first time.
// You can also create buckets through the GCP cloud console web interface
storageClient.CreateBucket(projectId, bucketName);
System.Windows.MessageBox.Show($"Bucket {bucketName} created.");
// Open the image file filestream
using (var fileStream = new System.IO.FileStream(filePath, System.IO.FileMode.Open))
{
ProgressBar.Maximum = fileStream.Length;
// set minimum chunksize just to see progress updating
var uploadObjectOptions = new Google.Cloud.Storage.V1.UploadObjectOptions
{
ChunkSize = Google.Cloud.Storage.V1.UploadObjectOptions.MinimumChunkSize
};
// Hook up the progress callback
var progressReporter = new Progress<Google.Apis.Upload.IUploadProgress>(OnUploadProgress);
await storageClient.UploadObjectAsync(
newObject,
fileStream,
uploadObjectOptions,
progress: progressReporter)
.ConfigureAwait(false);
}
}
catch (Google.GoogleApiException e)
when (e.Error.Code == 409)
{
// When creating the bucket - The bucket already exists. That's fine.
System.Windows.MessageBox.Show(e.Error.Message);
}
catch (Exception e)
{
// other exception
System.Windows.MessageBox.Show(e.Message);
}
}
}
// Called when progress updates
void OnUploadProgress(Google.Apis.Upload.IUploadProgress progress)
{
switch (progress.Status)
{
case Google.Apis.Upload.UploadStatus.Starting:
ProgressBar.Minimum = 0;
ProgressBar.Value = 0;
break;
case Google.Apis.Upload.UploadStatus.Completed:
ProgressBar.Value = ProgressBar.Maximum;
System.Windows.MessageBox.Show("Upload completed");
break;
case Google.Apis.Upload.UploadStatus.Uploading:
UpdateProgressBar(progress.BytesSent);
break;
case Google.Apis.Upload.UploadStatus.Failed:
System.Windows.MessageBox.Show("Upload failed"
+ Environment.NewLine
+ progress.Exception);
break;
}
}
void UpdateProgressBar(long value)
{
_dispatcher.Invoke(() => { ProgressBar.Value = value; });
}
// probably better to expose progress value directly and bind to
// a ProgressBar in the XAML
public ProgressBar ProgressBar { get; }
}
答案 3 :(得分：2)
使用Google.Apis.Storage.v1通过SDK将文件上传到c＃中的Google云存储：
必需的api-key.json文件
安装软件包Google.Cloud.Storage.V1;和Google.Apis.Auth.OAuth2;
下面提供了将文件上传到云端的代码
line设置凭据
# set the index in line
df.set_index('line', inplace=True)
#split up the table into the 2 parts to work on
amount_df = df[df['text'] == 'Amount']
vat_df = df[df['text'] == 'VAT']
# join the 2 tables to get everything on one row
df2 = amount_df.join(vat_df, how='outer', on='line', rsuffix='amount', lsuffix='vat')
# do the math
condition = df2['xvat'] - df2['x2amount'] < 10
df2 = df2[condition]
df2['text'] = 'Total'
df2['x'] = df2['xvat'] - (df2['xamount'] - df2['xvat'])
df2['y'] = df2['yvat'] - (df2['yamount'] - df2['yvat'])
df2['x2'] = df2['x2vat'] - (df2['x2amount'] - df2['x2vat'])
df2['y2'] = df2['y2vat'] - (df2['y2amount'] - df2['y2vat'])
df.append(df2[['text','x','y','x2','y2']])
我在一个窗口应用程序中使用了SDK。您可以根据自己的需求/要求使用相同的代码。
答案 4 :(得分：1)
你会很高兴知道它仍然有效2016年...
我使用像谷歌gcp C＃上传图片这样的关键词进行谷歌搜索，直到我简单地问了一个问题：“如何使用C＃将图像上传到谷歌桶”......我在这里。我删除了用户凭据中的.Result，这是对我有用的最终编辑。
// ******
static string bucketForImage = ConfigurationManager.AppSettings["testStorageName"];
static string projectName = ConfigurationManager.AppSettings["GCPProjectName"];
string gcpPath = Path.Combine(Server.MapPath("~/Images/Gallery/"), uniqueGcpName + ext);
var clientSecrets = new ClientSecrets();
clientSecrets.ClientId = ConfigurationManager.AppSettings["GCPClientID"];
clientSecrets.ClientSecret = ConfigurationManager.AppSettings["GCPClientSc"];
var scopes = new[] { @"https://www.googleapis.com/auth/devstorage.full_control" };
var cts = new CancellationTokenSource();
var userCredential = await GoogleWebAuthorizationBroker.AuthorizeAsync(clientSecrets, scopes, ConfigurationManager.AppSettings["GCPAccountEmail"], cts.Token);
var service = new Google.Apis.Storage.v1.StorageService();
var bucketToUpload = bucketForImage;
var newObject = new Google.Apis.Storage.v1.Data.Object()
{
Bucket = bucketToUpload,
Name = bkFileName
};
FileStream fileStream = null;
try
{
fileStream = new FileStream(gcpPath, FileMode.Open);
var uploadRequest = new Google.Apis.Storage.v1.ObjectsResource.InsertMediaUpload(service, newObject,
bucketToUpload, fileStream, "image/"+ ext);
uploadRequest.OauthToken = userCredential.Token.AccessToken;
await uploadRequest.UploadAsync();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
if (fileStream != null)
{
fileStream.Dispose();
}
}
// ******
答案 5 :(得分：0)
以下是使用Google云端存储的“.NET Bookshelf App”官方C＃示例的链接。
https://cloud.google.com/dotnet/docs/getting-started/using-cloud-storage
github上的来源：
https://github.com/GoogleCloudPlatform/getting-started-dotnet/tree/master/aspnet/3-binary-data
的NuGet
答案 6 :(得分：0)
以下有两个示例可帮助我使用Google.Cloud.Storage.V1（而非Google.Apis.Storage.v1）将文件上传到Google Cloud Storage中的存储桶：
Upload files to Google cloud storage using c#
Uploading .csv Files to Google Cloud Storage using C# .Net
我都是为了测试而C# Console Application上工作的。
答案 7 :(得分：0)
@2021 年 2 月
string _projectId = "YOUR-PROJECT-ID-GCP"; //ProjectID also present in the json file
GoogleCredential _credential = GoogleCredential.FromFile("credential-cloud-file-123418c9e06c.json");
/// <summary>
/// UploadFile to GCS Bucket
/// </summary>
/// <param name="bucketName"></param>
/// <param name="localPath">my-local-path/my-file-name</param>
/// <param name="objectName">my-file-name</param>
public void UploadFile(string bucketName, string localPath, string objectName)
{
var storage = StorageClient.Create(_credential);
using var fileStream = File.OpenRead(localPath);
storage.UploadObject(bucketName, objectName, null, fileStream);
Console.WriteLine($"Uploaded {objectName}.");
}
您从 Google 云门户获取凭证 JSON 文件，您可以在该门户中在项目下创建存储桶..