Performing a Streaming Upload

If you have any questions during development, post them on the Issues page of GitHub. For details about parameters and usage of each API, see the .

Streaming upload uses java.io.InputStream as the data source of an object. You can call ObsClient.putObject to upload the data streams to OBS. Sample code is as follows:

Uploading a Character String (Byte Array)

// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running this example, configure environment variables ACCESS_KEY_ID and SECRET_ACCESS_KEY_ID.
// Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html.
String ak = System.getenv("ACCESS_KEY_ID");
String sk = System.getenv("SECRET_ACCESS_KEY_ID");
String endPoint = "https://your-endpoint";
// Create an ObsClient instance.
ObsClient obsClient = new ObsClient(ak, sk, endPoint);

String content = "Hello OBS";
obsClient.putObject("bucketname", "objectname", new ByteArrayInputStream(content.getBytes()));

Uploading a Network Stream

// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running this example, configure environment variables ACCESS_KEY_ID and SECRET_ACCESS_KEY_ID.
// Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html.
String ak = System.getenv("ACCESS_KEY_ID");
String sk = System.getenv("SECRET_ACCESS_KEY_ID");
String endPoint = "https://your-endpoint";
// Create an ObsClient instance.
ObsClient obsClient = new ObsClient(ak, sk, endPoint);

InputStream inputStream = new URL("http://www.a.com").openStream();
obsClient.putObject("bucketname", "objectname", inputStream);

Uploading a File Stream

// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running this example, configure environment variables ACCESS_KEY_ID and SECRET_ACCESS_KEY_ID.
// Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/eu/usermanual-ca/ca_01_0003.html.
String ak = System.getenv("ACCESS_KEY_ID");
String sk = System.getenv("SECRET_ACCESS_KEY_ID");
String endPoint = "https://your-endpoint";
// Create an ObsClient instance.
ObsClient obsClient = new ObsClient(ak, sk, endPoint);

FileInputStream fis = new FileInputStream(new File("localfile")); // localfile indicates the path of the local file to be uploaded. You need to specify the file name.
obsClient.putObject("bucketname", "objectname", fis);
// Path of the local file to be uploaded, in which the file name must be specified.
FileInputStream fis2 = new FileInputStream(new File("localfile2"));
PutObjectRequest request = new PutObjectRequest();
request.setBucketName("bucketname");
request.setObjectKey("objectname2");
request.setInput(fis2);
obsClient.putObject(request);

To upload a local file, you are advised to use file-based upload.
To upload a large file, you are advised to use multipart upload.
The file to be uploaded cannot exceed 5 GB.
Due to HTTP coding restrictions, non-ASCII characters cannot be sent. If your request headers contain full-width characters, the SDK will URL encode these characters before sending the request. When you use a browser to access the object metadata, the browser automatically decodes the data.
If you do not need the SDK to decode for you, call PutObjectRequest.setIsEncodeHeaders(false) to disable auto encoding.