c# - 如何使用 C# 轻松上传文件到 Amazon S3

Question

我厌倦了所有这些不起作用的“上传到 S3”示例和教程，有人能给我一个简单有效且 super 简单的示例吗？

Answer 1

好吧，这里是您必须遵循的说明才能获得完整的演示程序...

1 - 下载并安装适用于 .NET 的亚马逊网络服务 SDK，您可以在 ( http://aws.amazon.com/sdk-for-net/ ) 中找到它。因为我有 visual studio 2010，所以我选择安装 3.5 .NET SDK。

2- 打开 visual studio 并创建一个新项目，我有 visual studio 2010，我正在使用控制台应用程序项目。

3- 添加对 AWSSDK.dll 的引用，它与上面提到的 Amazon Web 服务 SDK 一起安装，在我的系统中，dll 位于“C:\Program Files (x86)\AWS SDK for .NET\bin\Net35\AWSSDK.dll"。

4- 制作一个新的类文件，将其命名为“AmazonUploader”，这里是该类的完整代码:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Amazon;
using Amazon.S3;
using Amazon.S3.Transfer;

namespace UploadToS3Demo
{
    public class AmazonUploader
    {
        public bool sendMyFileToS3(string localFilePath, string bucketName, string subDirectoryInBucket, string fileNameInS3)
        {
        // input explained :
        // localFilePath = the full local file path e.g. "c:\mydir\mysubdir\myfilename.zip"
        // bucketName : the name of the bucket in S3 ,the bucket should be alreadt created
        // subDirectoryInBucket : if this string is not empty the file will be uploaded to
            // a subdirectory with this name
        // fileNameInS3 = the file name in the S3

        // create an instance of IAmazonS3 class ,in my case i choose RegionEndpoint.EUWest1
        // you can change that to APNortheast1 , APSoutheast1 , APSoutheast2 , CNNorth1
        // SAEast1 , USEast1 , USGovCloudWest1 , USWest1 , USWest2 . this choice will not
        // store your file in a different cloud storage but (i think) it differ in performance
        // depending on your location
        IAmazonS3 client = Amazon.AWSClientFactory.CreateAmazonS3Client(RegionEndpoint.EUWest1);

        // create a TransferUtility instance passing it the IAmazonS3 created in the first step
        TransferUtility utility = new TransferUtility(client);
        // making a TransferUtilityUploadRequest instance
        TransferUtilityUploadRequest request = new TransferUtilityUploadRequest();

        if (string.IsNullOrEmpty(subDirectoryInBucket))
        {
            request.BucketName = bucketName; //no subdirectory just bucket name
        }
        else
        {   // subdirectory and bucket name
            request.BucketName = bucketName + @"/" + subDirectoryInBucket;
        }
        request.Key = fileNameInS3 ; //file name up in S3
        request.FilePath = localFilePath; //local file name
        utility.Upload(request); //commensing the transfer

        return true; //indicate that the file was sent
    }
  }
}

5- 添加配置文件:在解决方案资源管理器中右键单击您的项目并选择“添加”->“新项目”，然后从列表中选择“应用程序配置文件”类型并单击“添加”按钮。一个名为“App.config”的文件被添加到解决方案中。

6- 编辑 app.config 文件:双击解决方案资源管理器中的“app.config”文件，将出现编辑菜单。用以下文本替换所有文本:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <appSettings>
    <add key="AWSProfileName" value="profile1"/>
    <add key="AWSAccessKey" value="your Access Key goes here"/>
    <add key="AWSSecretKey" value="your Secret Key goes here"/>

  </appSettings>
</configuration>

您必须修改以上文本以反射(reflect)您的 Amazon 访问 key ID 和 secret 访问 key 。

7- 现在在 program.cs 文件中(记住这是一个控制台应用程序)写入以下代码:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace UploadToS3Demo
{
    class Program
    {
        static void Main(string[] args)
        {
            // preparing our file and directory names
            string fileToBackup = @"d:\mybackupFile.zip" ; // test file
            string myBucketName = "mys3bucketname"; //your s3 bucket name goes here
            string s3DirectoryName = "justdemodirectory";
            string s3FileName = @"mybackupFile uploaded in 12-9-2014.zip";

            AmazonUploader myUploader = new AmazonUploader();
            myUploader.sendMyFileToS3(fileToBackup, myBucketName, s3DirectoryName, s3FileName);
        }
    }
}

8-用自己的数据替换上面代码中的字符串

9-添加纠错 并且您的程序已准备就绪