Object Storage Service:Specify Content-Type for an object

Usage notes

• Before you run the sample code in this topic, you must create an OSSClient instance by using methods such as using a custom domain name or Security Token Service (STS). For more information, see Initialization.

• In some cases, you must specify Content-Type for the object that you want to upload. Otherwise, the object cannot be read by using the specified method. If you do not specify Content-Type when you use Object Storage Service (OSS) SDK for Android to upload an object, OSS SDK for Android automatically specifies Content-Type based on the suffix of the object.

Examples

The following sample code provides an example on how to specify Content-Type for an object:

// Construct an upload request. 
// Specify the name of the bucket, the full path of the object, and the full path of the local file. In this example, the name of the bucket is examplebucket, the full path of the object is exampledir/exampleobject.txt, and the full path of the local file is /storage/emulated/0/oss/examplefile.txt. 
// Do not include the bucket name in the full path of the object. 
PutObjectRequest put = new PutObjectRequest("examplebucket", "exampledir/exampleobject.txt", "/storage/emulated/0/oss/examplefile.txt");

ObjectMetadata metadata = new ObjectMetadata();
// Specify Content-Type. 
metadata.setContentType("application/octet-stream");
// Specify custom user metadata. 
metadata.addUserMetadata("x-oss-meta-name1", "value1");
put.setMetadata(metadata);

OSSAsyncTask task = oss.asyncPutObject(put, new OSSCompletedCallback<PutObjectRequest, PutObjectResult>() {
    ...
});

References

• For more information about how to initialize an OSSClient instance, see Initialization.