如何在 azure 中正确设置元数据

Question

我尝试通过这种方式保存元数据：

     public void SaveMetaData(string fileName, string container, string key, string value)
    {
        try
        {
            var blob = GetBlobReference(fileName, container);
            blob.FetchAttributes();
            blob.Metadata.Add(key,value);
        }
        catch (Exception e)
        {
            _logger.Error(e,
                "An Exception occured  with blobname = {0} and blobcontainer = {1}", fileName,
                container);
        }
    }

但它不起作用。我应该怎么做呢？！

Answer 1

您需要调用SetMetadata() 来实际保存元数据。你的代码应该是这样的：

    public void SaveMetaData(string fileName, string container, string key, string value)
    {
        try
        {
            var blob = GetBlobReference(fileName, container);
            blob.FetchAttributes();
            blob.Metadata.Add(key, value);
            blob.SetMetadata();//This line of code will save the metadata.
        }
        catch (Exception e)
        {
            _logger.Error(e,
                "An Exception occured  with blobname = {0} and blobcontainer = {1}", fileName,
                container);
        }
    }