D365 FO操作Azure Blob

 在AZure里，一般用Azure Blob做数据传输的中间媒介，D365 FO的数据生成到Blob里，其他系统从Blob里获取，或者相反，这样就不用单独设置FTP服务器了，当然这个是要钱的。
要想使用Blob，需要在AZure上创建存储账号，创建好存储账户以后，就可以设置访问密钥了。

 .NET提供了读写Azure里的类库，读写AZure Blob非常方便，访问只需要一个连接字符串做认证就可以了,用C#简单封装了一下访问的类库供D365 FO调用。

public class AZureBlobHelper
    {
        CloudBlobContainer blobContainer;
        string path;

        public AZureBlobHelper(
            string _connectionString,
            string _containerName,
            string _path)
        {            
            blobContainer = CloudStorageAccount.Parse(_connectionString)
                                                .CreateCloudBlobClient()
                                                .GetContainerReference(_containerName);

            if (_path != string.Empty && _path.EndsWith("/") == false)
            {
                path = _path + "/";
            }
            else
            {
                path = _path;
            }
        }
        public bool upload(MemoryStream _stream, string _fileName)
        {            
            CloudBlockBlob blockBlob = blobContainer.GetBlockBlobReference(path + _fileName);
            blockBlob.UploadFromStream(_stream, null, null, null);
            return true;
        }
        
        public string[] getFileList()
        {
            List<string> list = new List<string>();
            CloudBlobDirectory direcotry =  blobContainer.GetDirectoryReference(path);
            foreach(var file in direcotry.ListBlobs())
            {
                string fileName = file.Uri.Segments[file.Uri.Segments.Length - 1];
                list.Add(fileName);
            }
            return list.ToArray();
        }
        public MemoryStream download(string _fileName)
        {
            MemoryStream ms = new MemoryStream();
            CloudBlockBlob blockBlob = blobContainer.GetBlockBlobReference(path + _fileName);            
            blockBlob.DownloadToStream(ms);            
            return ms;
        }
        public void delete(string _fileName)
        {
            CloudBlockBlob blockBlob = blobContainer.GetBlockBlobReference(path + _fileName);
            blockBlob.Delete();
        }
    }