How to upload and download blobs from Azure Blob Storage with Java
This sample shows how to do the following operations of Storage Blobs with Storage SDK
- Create a container
- Upload a blob
- Enumerate blobs
- Download a blob
- Delete a blob
- Delete a container
Use latest Storage Blob SDK
The Storage Blob SDK package version in this repo is 11.x.x. It's strongly recommended that you use the latest version of the Storage Blob SDK package, please refer to the following examples:
- BasicExample.java - Examples for common Storage Blob tasks:
- Create a container
- Upload a blob
- Download a blob
- Enumerate blobs
- Delete the blob
- Delete the container
Prerequisites
If you don't have an Azure subscription, create a free account before you begin.
Create a Storage Account using the Azure portal
Step 1 : Create a new general-purpose storage account to use for this tutorial.
- Go to the Azure Portal and log in using your Azure account.
- Select New > Storage > Storage account.
- Select your Subscription.
- For
Resource group
, create a new one and give it a unique name. - Enter a name for your storage account.
- Select the
Location
to use for your Storage Account. - Set
Account kind
to StorageV2(general purpose v2). - Set
Performance
to Standard. - Set
Replication
to Locally-redundant storage (LRS). - Set
Secure transfer required
to Disabled. - Check Review + create and click Create to create your Storage Account.
Step 2 : Copy and save keys.
- After your Storage Account is created. Click on it to open it. Select Settings > Access keys > key1/key2, Select a key and copy the Key to the clipboard, then paste it into text editor for later use.
Set credentials in environment variables
Linux
export AZURE_STORAGE_ACCOUNT="<YourAccountName>"
export AZURE_STORAGE_ACCESS_KEY="<YourAccountKey>"
Windows
setx AZURE_STORAGE_ACCOUNT "<YourAccountName>"
setx AZURE_STORAGE_ACCESS_KEY "<YourAccountKey>"
Run the application
First, clone the repository on your machine:
git clone https://github.com/Azure-Samples/azure-sdk-for-java-storage-blob-upload-download.git
Finally, run the application with the mvn compile exec:java
command.
mvn compile exec:java
Resources
Contributing
This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit https://cla.microsoft.com.
When you submit a pull request, a CLA-bot will automatically determine whether you need to provide a CLA and decorate the PR appropriately (e.g., label, comment). Simply follow the instructions provided by the bot. You will only need to do this once across all repos using our CLA.
This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact opencode@microsoft.com with any additional questions or comments.