使用AWS SDK for .NET的基于 Windows 的简单应用程序

打开 Visual Studio 并创建一个使用 C# 版本的控制台应用程序模板的新项目；也就是说，描述为：“... 用于创建可以在.NET 上运行的命令行应用程序...”。将项目命名为 S3CreateAndList。

加载新创建的项目后，选择 “工具”、“Pack NuGet age Manager”、“管理解决方案 NuGet 包”。

浏览以下 NuGet 软件包并将其安装到项目中：AWSSDK.S3AWSSDK.SecurityToken、AWSSDK.SSO、和 AWSSDK.SSOOIDC

此过程通过 NuGet 软件包管理器安装NuGet 软件包。因为我们确切地知道本教程需要什么 NuGet 软件包，所以我们现在可以执行这个步骤了。在开发过程中，知道所需的程序包也很常见。出现这种情况时，请按照类似的过程安装它们。

如果您打算从命令符提示处运行应用程序，请立即打开命令提示符并导航到将包含构建输出的文件夹。这通常是类似于 S3CreateAndList\S3CreateAndList\bin\Debug\net6.0 的内容，但具体取决于您的环境。

在 S3CreateAndList 项目中，查找并在 IDE 中打开 Program.cs。

用以下代码替换内容并保存文件。

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;
        }
    }
}

构建应用程序。

不带命令行参数运行应用程序。在命令提示符中（如果之前已打开）或从 IDE 执行此操作。

检查输出以查看您拥有的 Amazon S3 桶数（如果有）及其名称。

为新 Amazon S3 桶选择名称。使用 “dotnet-quicktour-s3-1-winvs-” 作为基础，然后为其添加一些独特的东西，例如 GUID 或你的名字。请务必遵守存储桶命名规则，如 Amazon S3 用户指南中的存储桶命名规则中所述。

再次运行应用程序，这次提供存储桶名称。

在命令行中，将以下命令中的 BUCKET-NAME 替换为您选择的桶的名称：

S3CreateAndList BUCKET-NAME

或者，如果您在 IDE 中运行应用程序，请选择 “项目”、“S3 CreateAndList 属性”、“调试”，然后在那里输入存储桶名称。

检查输出以查看创建的新存储桶。