使用 的簡單跨平台應用程式 AWS SDK for .NET

開啟命令提示字元或終端機。尋找或建立作業系統資料夾，您可以在其中建立 .NET 專案。

在該資料夾中，執行下列命令來建立 .NET 專案。

dotnet new console --name S3CreateAndList

前往新建立的S3CreateAndList資料夾並執行下列命令：

dotnet add package AWSSDK.S3
dotnet add package AWSSDK.SecurityToken
dotnet add package AWSSDK.SSO
dotnet add package AWSSDK.SSOOIDC

上述命令會從 NuGet 套件NuGet 管理員 安裝套件。由於我們確切知道本教學課程所需的 NuGet 套件，因此現在可以執行此步驟。開發期間，所需的套件也很常見。發生這種情況時，即可執行類似的命令。

在 S3CreateAndList 資料夾中，在程式碼編輯器中尋找並開啟 Program.cs。

以下列程式碼取代內容，並儲存檔案。

using System;
using System.Threading.Tasks;

// NuGet packages: AWSSDK.S3, AWSSDK.SecurityToken, AWSSDK.SSO, AWSSDK.SSOOIDC
using Amazon.Runtime;
using Amazon.Runtime.CredentialManagement;
using Amazon.S3;
using Amazon.S3.Model;
using Amazon.SecurityToken;
using Amazon.SecurityToken.Model;

namespace S3CreateAndList
{
    class Program
    {
        // This code is part of the quick tour in the developer guide.
        // See https://docs.aws.amazon.com/sdk-for-net/v3/developer-guide/quick-start.html
        // for complete steps.
        // Requirements:
        // - An SSO profile in the SSO user's shared config file with sufficient privileges for
		//   STS and S3 buckets.
        // - An active SSO Token.
        //    If an active SSO token isn't available, the SSO user should do the following:
        //    In a terminal, the SSO user must call "aws sso login".

        // Class members.
        static async Task Main(string[] args)
        {
            // Get SSO credentials from the information in the shared config file.
            // For this tutorial, the information is in the [default] profile.
            var ssoCreds = LoadSsoCredentials("default");

            // Display the caller's identity.
            var ssoProfileClient = new AmazonSecurityTokenServiceClient(ssoCreds);
            Console.WriteLine($"\nSSO Profile:\n {await ssoProfileClient.GetCallerIdentityArn()}");

            // Create the S3 client is by using the SSO credentials obtained earlier.
            var s3Client = new AmazonS3Client(ssoCreds);

            // Parse the command line arguments for the bucket name.
            if (GetBucketName(args, out String bucketName))
            {
                // If a bucket name was supplied, create the bucket.
                // Call the API method directly
                try
                {
                    Console.WriteLine($"\nCreating bucket {bucketName}...");
                    var createResponse = await s3Client.PutBucketAsync(bucketName);
                    Console.WriteLine($"Result: {createResponse.HttpStatusCode.ToString()}");
                }
                catch (Exception e)
                {
                    Console.WriteLine("Caught exception when creating a bucket:");
                    Console.WriteLine(e.Message);
                }
            }

            // Display a list of the account's S3 buckets.
            Console.WriteLine("\nGetting a list of your buckets...");
            var listResponse = await s3Client.ListBucketsAsync();
            Console.WriteLine($"Number of buckets: {listResponse.Buckets.Count}");
            foreach (S3Bucket b in listResponse.Buckets)
            {
                Console.WriteLine(b.BucketName);
            }
            Console.WriteLine();
        }

        // 
        // Method to parse the command line.
        private static Boolean GetBucketName(string[] args, out String bucketName)
        {
            Boolean retval = false;
            bucketName = String.Empty;
            if (args.Length == 0)
            {
                Console.WriteLine("\nNo arguments specified. Will simply list your Amazon S3 buckets." +
                  "\nIf you wish to create a bucket, supply a valid, globally unique bucket name.");
                bucketName = String.Empty;
                retval = false;
            }
            else if (args.Length == 1)
            {
                bucketName = args[0];
                retval = true;
            }
            else
            {
                Console.WriteLine("\nToo many arguments specified." +
                  "\n\ndotnet_tutorials - A utility to list your Amazon S3 buckets and optionally create a new one." +
                  "\n\nUsage: S3CreateAndList [bucket_name]" +
                  "\n - bucket_name: A valid, globally unique bucket name." +
                  "\n - If bucket_name isn't supplied, this utility simply lists your buckets.");
                Environment.Exit(1);
            }
            return retval;
        }

        //
        // Method to get SSO credentials from the information in the shared config file.
        static AWSCredentials LoadSsoCredentials(string profile)
        {
            var chain = new CredentialProfileStoreChain();
            if (!chain.TryGetAWSCredentials(profile, out var credentials))
                throw new Exception($"Failed to find the {profile} profile");
            return credentials;
        }
    }

    // Class to read the caller's identity.
    public static class Extensions
    {
        public static async Task<string> GetCallerIdentityArn(this IAmazonSecurityTokenService stsClient)
        {
            var response = await stsClient.GetCallerIdentityAsync(new GetCallerIdentityRequest());
            return response.Arn;
        }
    }
}

執行下列命令。

dotnet run

檢查輸出以查看您擁有的 Amazon S3 儲存貯體數量，如果有的話，以及其名稱。

選擇新 Amazon S3 儲存貯體的名稱。使用 "dotnet-quicktour-s3-1-cross-" 作為基礎，並為其新增唯一項目，例如 GUID或您的名稱。請務必遵循儲存貯體名稱的規則，如 Amazon S3 使用者指南 中的儲存貯體命名規則所述。

執行下列命令，取代 amzn-s3-demo-bucket 搭配您選擇的儲存貯體名稱。

dotnet run amzn-s3-demo-bucket

檢查輸出以查看建立的新儲存貯體。