Question

请注意，这是我第一次用C＃做任何事情，所以请善待，我可能会犯一些非常基本的错误。（是的，我知道我不应该硬编码密钥，但会在代码完成我想要的时候修复它。）

我正在尝试创建一个Azure函数，将Blob存储中的所有新项目复制到AWS S3。我已经设法使用本文中的代码从blob复制到blob：https://cmatskas.com/copy-azure-blob-data-between-storage-accounts-using-functions/

我尝试修改该代码，而不是保存到AWS S3存储桶。虽然此代码成功编译并为我提供了成功的日志，但它不会复制任何文件。有什么想法吗？

using System;
using System.IO;
using Amazon.S3;
using Amazon.S3.Model;
using Amazon.S3.Transfer;
using Microsoft.Azure;
using Microsoft.WindowsAzure.Storage;
using Microsoft.WindowsAzure.Storage.Blob;

public async static void Run(CloudBlockBlob myBlob, TraceWriter log) 
{
    await CopyBlob(myBlob, log);
}

private async static Task CopyBlob(CloudBlockBlob myBlob, TraceWriter log)
{
    var existingBucketName = "bucketname";
    var keyName = "backup";
    var accessKey = "key";
    var secretKey = "secretkey";

    TransferUtility fileTransferUtility = new TransferUtility(new AmazonS3Client(accessKey,secretKey,Amazon.RegionEndpoint.eu-west-2));

    log.Info("Starting Copy");

    try{
        using (var stream = await myBlob.OpenReadAsync())
        {
            await fileTransferUtility.UploadAsync(stream, existingBucketName, keyName);
        }
        log.Info("Copy completed");

    }
    catch(Exception ex){
        log.Error(ex.Message);
        log.Info("Copy failed");
    }
    finally{
        log.Info("Operation completed");
    }
}

编辑：让它适用于将来发现这一点的任何人。

using System;
using System.IO;
using Amazon.S3;
using Amazon.S3.Model;
using Amazon.S3.Transfer;
using Microsoft.Azure;
using Microsoft.WindowsAzure.Storage;
using Microsoft.WindowsAzure.Storage.Blob;

public async static void Run(CloudBlockBlob myBlob, TraceWriter log) 
{
    await CopyBlob(myBlob, log);
}

private async static Task CopyBlob(CloudBlockBlob myBlob, TraceWriter log)
{
    var existingBucketName = "bucketname";
    var keyName = myBlob.Name;
    var accessKey = "accesskey";
    var secretKey = "secretkey";

    TransferUtility fileTransferUtility = new TransferUtility(new AmazonS3Client(accessKey,secretKey,Amazon.RegionEndpoint.eu-west-2));

    log.Info("Starting Copy");

    try{
        using (var stream = await myBlob.OpenReadAsync())
        {
            await fileTransferUtility.UploadAsync(stream,existingBucketName,keyName);
        }
        log.Info("Copy completed");

    }
    catch(Exception ex){
        log.Error(ex.Message);
        log.Info("Copy failed");
    }
    finally{
        log.Info("Operation completed");
    }
}

Answer 1

您应该看到有关此问题的警告，但您的void方法可能会导致此问题。

请将您的功能代码更新为以下内容：

public async static Task Run(CloudBlockBlob myBlob, TraceWriter log) 
{
    await CopyBlob(myBlob, log);
}

请注意从void到Task

的更改

使用C＃从Azure Blob复制到AWS S3

1 个答案: