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Télécharger Zip Téléchargement... 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"]
Azure Storage Blob SDK for Java
Build blob storage applications using the Azure Storage Blob SDK for Java.
Installation
<dependency >
<groupId > com.azure</groupId >
<artifactId > azure-storage-blob</artifactId >
<version > 12.33.0</version >
</dependency >
Client Creation
BlobServiceClient
import com.azure.storage.blob.BlobServiceClient;
import com.azure.storage.blob.BlobServiceClientBuilder;
BlobServiceClient serviceClient = new BlobServiceClientBuilder ()
.endpoint("<storage-account-url>" )
.sasToken("<sas-token>" )
.buildClient();
BlobServiceClient serviceClient = new BlobServiceClientBuilder ()
.connectionString("<connection-string>" )
.buildClient();
With DefaultAzureCredential
import com.azure.identity.DefaultAzureCredentialBuilder;
BlobServiceClient serviceClient = new BlobServiceClientBuilder ()
.endpoint("<storage-account-url>" )
.credential(new DefaultAzureCredentialBuilder ().build())
.buildClient();
BlobContainerClient import com.azure.storage.blob.BlobContainerClient;
BlobContainerClient containerClient = serviceClient.getBlobContainerClient("mycontainer" );
BlobContainerClient containerClient = new BlobContainerClientBuilder ()
.connectionString("<connection-string>" )
.containerName("mycontainer" )
.buildClient();
BlobClient import com.azure.storage.blob.BlobClient;
BlobClient blobClient = containerClient.getBlobClient("myblob.txt" );
BlobClient blobClient = containerClient.getBlobClient("folder/subfolder/myblob.txt" );
BlobClient blobClient = new BlobClientBuilder ()
.connectionString("<connection-string>" )
.containerName("mycontainer" )
.blobName("myblob.txt" )
.buildClient();
Core Patterns
Create Container
serviceClient.createBlobContainer("mycontainer" );
BlobContainerClient container = serviceClient.createBlobContainerIfNotExists("mycontainer" );
containerClient.create();
containerClient.createIfNotExists();
Upload Data import com.azure.core.util.BinaryData;
String data = "Hello, Azure Blob Storage!" ;
blobClient.upload(BinaryData.fromString(data));
blobClient.upload(BinaryData.fromString(data), true );
Upload from File blobClient.uploadFromFile("local-file.txt" );
blobClient.uploadFromFile("local-file.txt" , true );
Upload from Stream import com.azure.storage.blob.specialized.BlockBlobClient;
BlockBlobClient blockBlobClient = blobClient.getBlockBlobClient();
try (ByteArrayInputStream dataStream = new ByteArrayInputStream (data.getBytes())) {
blockBlobClient.upload(dataStream, data.length());
}
Upload with Options 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);
}
Upload if Not Exists import com.azure.storage.blob.models.BlobRequestConditions;
BlobParallelUploadOptions options = new BlobParallelUploadOptions (inputStream, length)
.setRequestConditions(new BlobRequestConditions ().setIfNoneMatch("*" ));
blobClient.uploadWithResponse(options, null , Context.NONE);
Download Data
BinaryData content = blobClient.downloadContent();
String text = content.toString();
blobClient.downloadToFile("downloaded-file.txt" );
Download to Stream try (ByteArrayOutputStream outputStream = new ByteArrayOutputStream ()) {
blobClient.downloadStream(outputStream);
byte [] data = outputStream.toByteArray();
}
Download with InputStream 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 ) {
}
}
Upload via OutputStream import com.azure.storage.blob.specialized.BlobOutputStream;
try (BlobOutputStream blobOS = blobClient.getBlockBlobClient().getBlobOutputStream()) {
blobOS.write("Data to upload" .getBytes());
}
List Blobs import com.azure.storage.blob.models.BlobItem;
for (BlobItem blobItem : containerClient.listBlobs()) {
System.out.println("Blob: " + blobItem.getName());
}
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());
}
List Blobs by Hierarchy 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());
}
}
Delete Blob blobClient.delete();
blobClient.deleteIfExists();
import com.azure.storage.blob.models.DeleteSnapshotsOptionType;
blobClient.deleteWithResponse(DeleteSnapshotsOptionType.INCLUDE, null , null , Context.NONE);
Copy Blob import com.azure.storage.blob.models.BlobCopyInfo;
import com.azure.core.util.polling.SyncPoller;
SyncPoller<BlobCopyInfo, Void> poller = blobClient.beginCopy("<source-blob-url>" , Duration.ofSeconds(1 ));
poller.waitForCompletion();
blobClient.copyFromUrl("<source-blob-url>" );
Generate SAS Token import com.azure.storage.blob.sas.*;
import java.time.OffsetDateTime;
BlobSasPermission permissions = new BlobSasPermission ().setReadPermission(true );
OffsetDateTime expiry = OffsetDateTime.now().plusDays(1 );
BlobServiceSasSignatureValues sasValues = new BlobServiceSasSignatureValues (expiry, permissions);
String sasToken = blobClient.generateSas(sasValues);
BlobContainerSasPermission containerPermissions = new BlobContainerSasPermission ()
.setReadPermission(true )
.setListPermission(true );
BlobServiceSasSignatureValues containerSasValues = new BlobServiceSasSignatureValues (expiry, containerPermissions);
String containerSas = containerClient.generateSas(containerSasValues);
Blob Properties and Metadata import com.azure.storage.blob.models.BlobProperties;
BlobProperties properties = blobClient.getProperties();
System.out.println("Size: " + properties.getBlobSize());
System.out.println("Content-Type: " + properties.getContentType());
System.out.println("Last Modified: " + properties.getLastModified());
Map<String, String> metadata = Map.of("key1" , "value1" , "key2" , "value2" );
blobClient.setMetadata(metadata);
BlobHttpHeaders headers = new BlobHttpHeaders ()
.setContentType("application/json" )
.setCacheControl("max-age=86400" );
blobClient.setHttpHeaders(headers);
Lease Blob import com.azure.storage.blob.specialized.BlobLeaseClient;
import com.azure.storage.blob.specialized.BlobLeaseClientBuilder;
BlobLeaseClient leaseClient = new BlobLeaseClientBuilder ()
.blobClient(blobClient)
.buildClient();
String leaseId = leaseClient.acquireLease(60 );
leaseClient.renewLease();
leaseClient.releaseLease();
Error Handling 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());
}
Proxy Configuration 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();
Environment Variables AZURE_STORAGE_CONNECTION_STRING=DefaultEndpointsProtocol=https;AccountName=...
AZURE_STORAGE_ACCOUNT_URL=https://<account>.blob.core.windows.net
Trigger Phrases
"Azure Blob Storage Java"
"upload download blob"
"blob container SDK"
"storage streaming"
"SAS token generation"
"blob metadata properties"
When to Use This skill is applicable to execute the workflow or actions described in the overview.
Connections
Domain: [[Cloud & Infrastruktur]]Kategorie: [[Microsoft Azure]]Navigation: [[Skills Uebersicht]], [[Home]] Métiers associés SOC
Basé sur la classification professionnelle SOC
