使用java下载blob

我可以回答这个问题。使用Java下载blob可以使用Azure Blob存储Java SDK。您可以使用以下代码示例：

String connectStr = "DefaultEndpointsProtocol=https;AccountName=<your_account_name>;AccountKey=<your_account_key>;EndpointSuffix=core.windows.net";
String containerName = "<your_container_name>";
String blobName = "<your_blob_name>";
String filePath = "<your_local_file_path>";

// Create a BlobServiceClient object
BlobServiceClient blobServiceClient = new BlobServiceClientBuilder().connectionString(connectStr).buildClient();

// Get a reference to a container
BlobContainerClient containerClient = blobServiceClient.getBlobContainerClient(containerName);

// Get a reference to a blob
BlobClient blobClient = containerClient.getBlobClient(blobName);

// Download the blob to a local file
blobClient.downloadToFile(filePath);

请注意，您需要将`<your_account_name>`，`<your_account_key>`，`<your_container_name>`，`<your_blob_name>`和`<your_local_file_path>`替换为您自己的值。