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Build blob storage applications using the Azure Storage Blob SDK for Java.
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npx skills add https://github.com/BEKO2210/Firstbrain --skill azure-storage-blob-java명령은 한 줄로 유지됩니다. 복사하기 전에 가로로 스크롤해 전체 내용을 확인하세요.
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SOC 직업 분류 기준
SKILL.md 표시 중
| name | azure-storage-blob-java |
| description | Build blob storage applications using the Azure Storage Blob SDK for Java. |
| type | skill |
| created | 2026-02-27T00:00:00.000Z |
| domain | cloud-infrastructure |
| category | azure |
| risk | unknown |
| source | community |
| tags | ["skill","cloud-infrastructure","azure","storage","blob"] |
Build blob storage applications using the Azure Storage Blob SDK for Java.
<dependency>
<groupId>com.azure</groupId>
<artifactId>azure-storage-blob</artifactId>
<version>12.33.0</version>
</dependency>
import com.azure.storage.blob.BlobServiceClient;
import com.azure.storage.blob.BlobServiceClientBuilder;
// With SAS token
BlobServiceClient serviceClient = new BlobServiceClientBuilder()
.endpoint("<storage-account-url>")
.sasToken("<sas-token>")
.buildClient();
// With connection string
BlobServiceClient serviceClient = new BlobServiceClientBuilder()
.connectionString("<connection-string>")
.buildClient();
import com.azure.identity.DefaultAzureCredentialBuilder;
BlobServiceClient serviceClient = new BlobServiceClientBuilder()
.endpoint("<storage-account-url>")
.credential(new DefaultAzureCredentialBuilder().build())
.buildClient();
import com.azure.storage.blob.BlobContainerClient;
// From service client
BlobContainerClient containerClient = serviceClient.getBlobContainerClient("mycontainer");
// Direct construction
BlobContainerClient containerClient = new BlobContainerClientBuilder()
.connectionString("<connection-string>")
.containerName("mycontainer")
.buildClient();
import com.azure.storage.blob.BlobClient;
// From container client
BlobClient blobClient = containerClient.getBlobClient("myblob.txt");
// With directory structure
BlobClient blobClient = containerClient.getBlobClient("folder/subfolder/myblob.txt");
// Direct construction
BlobClient blobClient = new BlobClientBuilder()
.connectionString("<connection-string>")
.containerName("mycontainer")
.blobName("myblob.txt")
.buildClient();
// Create container
serviceClient.createBlobContainer("mycontainer");
// Create if not exists
BlobContainerClient container = serviceClient.createBlobContainerIfNotExists("mycontainer");
// From container client
containerClient.create();
containerClient.createIfNotExists();
import com.azure.core.util.BinaryData;
// Upload string
String data = "Hello, Azure Blob Storage!";
blobClient.upload(BinaryData.fromString(data));
// Upload with overwrite
blobClient.upload(BinaryData.fromString(data), true);
blobClient.uploadFromFile("local-file.txt");
// With overwrite
blobClient.uploadFromFile("local-file.txt", true);
import com.azure.storage.blob.specialized.BlockBlobClient;
BlockBlobClient blockBlobClient = blobClient.getBlockBlobClient();
try (ByteArrayInputStream dataStream = new ByteArrayInputStream(data.getBytes())) {
blockBlobClient.upload(dataStream, data.length());
}
import com.azure.storage.blob.models.BlobHttpHeaders;
import com.azure.storage.blob.options.BlobParallelUploadOptions;
BlobHttpHeaders headers = new BlobHttpHeaders()
.setContentType("text/plain")
.setCacheControl("max-age=3600");
Map<String, String> metadata = Map.of("author", "john", "version", "1.0");
try (InputStream stream = new FileInputStream("large-file.bin")) {
BlobParallelUploadOptions options = new BlobParallelUploadOptions(stream)
.setHeaders(headers)
.setMetadata(metadata);
blobClient.uploadWithResponse(options, null, Context.NONE);
}
import com.azure.storage.blob.models.BlobRequestConditions;
BlobParallelUploadOptions options = new BlobParallelUploadOptions(inputStream, length)
.setRequestConditions(new BlobRequestConditions().setIfNoneMatch("*"));
blobClient.uploadWithResponse(options, null, Context.NONE);
// Download to BinaryData
BinaryData content = blobClient.downloadContent();
String text = content.toString();
// Download to file
blobClient.downloadToFile("downloaded-file.txt");
try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream()) {
blobClient.downloadStream(outputStream);
byte[] data = outputStream.toByteArray();
}
import com.azure.storage.blob.specialized.BlobInputStream;
try (BlobInputStream blobIS = blobClient.openInputStream()) {
byte[] buffer = new byte[1024];
int bytesRead;
while ((bytesRead = blobIS.read(buffer)) != -1) {
// Process buffer
}
}
import com.azure.storage.blob.specialized.BlobOutputStream;
try (BlobOutputStream blobOS = blobClient.getBlockBlobClient().getBlobOutputStream()) {
blobOS.write("Data to upload".getBytes());
}
import com.azure.storage.blob.models.BlobItem;
// List all blobs
for (BlobItem blobItem : containerClient.listBlobs()) {
System.out.println("Blob: " + blobItem.getName());
}
// List with prefix (virtual directory)
import com.azure.storage.blob.models.ListBlobsOptions;
ListBlobsOptions options = new ListBlobsOptions().setPrefix("folder/");
for (BlobItem blobItem : containerClient.listBlobs(options, null)) {
System.out.println("Blob: " + blobItem.getName());
}
import com.azure.storage.blob.models.BlobListDetails;
String delimiter = "/";
ListBlobsOptions options = new ListBlobsOptions()
.setPrefix("data/")
.setDetails(new BlobListDetails().setRetrieveMetadata(true));
for (BlobItem item : containerClient.listBlobsByHierarchy(delimiter, options, null)) {
if (item.isPrefix()) {
System.out.println("Directory: " + item.getName());
} else {
System.out.println("Blob: " + item.getName());
}
}
blobClient.delete();
// Delete if exists
blobClient.deleteIfExists();
// Delete with snapshots
import com.azure.storage.blob.models.DeleteSnapshotsOptionType;
blobClient.deleteWithResponse(DeleteSnapshotsOptionType.INCLUDE, null, null, Context.NONE);
import com.azure.storage.blob.models.BlobCopyInfo;
import com.azure.core.util.polling.SyncPoller;
// Async copy (for large blobs or cross-account)
SyncPoller<BlobCopyInfo, Void> poller = blobClient.beginCopy("<source-blob-url>", Duration.ofSeconds(1));
poller.waitForCompletion();
// Sync copy from URL (for same account)
blobClient.copyFromUrl("<source-blob-url>");
import com.azure.storage.blob.sas.*;
import java.time.OffsetDateTime;
// Blob-level SAS
BlobSasPermission permissions = new BlobSasPermission().setReadPermission(true);
OffsetDateTime expiry = OffsetDateTime.now().plusDays(1);
BlobServiceSasSignatureValues sasValues = new BlobServiceSasSignatureValues(expiry, permissions);
String sasToken = blobClient.generateSas(sasValues);
// Container-level SAS
BlobContainerSasPermission containerPermissions = new BlobContainerSasPermission()
.setReadPermission(true)
.setListPermission(true);
BlobServiceSasSignatureValues containerSasValues = new BlobServiceSasSignatureValues(expiry, containerPermissions);
String containerSas = containerClient.generateSas(containerSasValues);
import com.azure.storage.blob.models.BlobProperties;
// Get properties
BlobProperties properties = blobClient.getProperties();
System.out.println("Size: " + properties.getBlobSize());
System.out.println("Content-Type: " + properties.getContentType());
System.out.println("Last Modified: " + properties.getLastModified());
// Set metadata
Map<String, String> metadata = Map.of("key1", "value1", "key2", "value2");
blobClient.setMetadata(metadata);
// Set HTTP headers
BlobHttpHeaders headers = new BlobHttpHeaders()
.setContentType("application/json")
.setCacheControl("max-age=86400");
blobClient.setHttpHeaders(headers);
import com.azure.storage.blob.specialized.BlobLeaseClient;
import com.azure.storage.blob.specialized.BlobLeaseClientBuilder;
BlobLeaseClient leaseClient = new BlobLeaseClientBuilder()
.blobClient(blobClient)
.buildClient();
// Acquire lease (-1 for infinite)
String leaseId = leaseClient.acquireLease(60);
// Renew lease
leaseClient.renewLease();
// Release lease
leaseClient.releaseLease();
import com.azure.storage.blob.models.BlobStorageException;
try {
blobClient.download(outputStream);
} catch (BlobStorageException e) {
System.out.println("Status: " + e.getStatusCode());
System.out.println("Error code: " + e.getErrorCode());
// 404 = Blob not found
// 409 = Conflict (lease, etc.)
}
import com.azure.core.http.ProxyOptions;
import com.azure.core.http.netty.NettyAsyncHttpClientBuilder;
import java.net.InetSocketAddress;
ProxyOptions proxyOptions = new ProxyOptions(
ProxyOptions.Type.HTTP,
new InetSocketAddress("localhost", 8888));
BlobServiceClient client = new BlobServiceClientBuilder()
.endpoint("<endpoint>")
.sasToken("<sas-token>")
.httpClient(new NettyAsyncHttpClientBuilder().proxy(proxyOptions).build())
.buildClient();
AZURE_STORAGE_CONNECTION_STRING=DefaultEndpointsProtocol=https;AccountName=...
AZURE_STORAGE_ACCOUNT_URL=https://<account>.blob.core.windows.net
This skill is applicable to execute the workflow or actions described in the overview.