The SDK also supports generating signed URLs, which can be used to initiate HTTP requests directly or shared with third parties to enable access authorization.

Standard Pre-Signature

The following example demonstrates how to download an object using a pre-signed URL.

import android.os.Bundle;​
import android.util.Log;​
​
import androidx.appcompat.app.AppCompatActivity;​
​
import com.volcengine.tos.TOSV2;​
import com.volcengine.tos.TOSV2ClientBuilder;​
import com.volcengine.tos.comm.HttpMethod;​
​
import java.time.Duration;​
​
public class PreSignedUrlGetObjectExample extends AppCompatActivity {​
​
    @Override​
    protected void onCreate(Bundle savedInstanceState) {​
        String endpoint = "your endpoint";​
        String region = "your region";​
        String accessKey = "your access key";​
        String secretKey = "your secret key";​
        String securityToken = "your security token";​
​
        String bucketName = "your bucket name";​
        String objectKey = "your object key";​
​
        super.onCreate(savedInstanceState);​
        setContentView(R.layout.activity_display_message);​
        TOSV2 tos = new TOSV2ClientBuilder().build(region, endpoint, accessKey, secretKey, securityToken);​
​
        Thread tosThread = new Thread(new Runnable() {​
            @Override​
            public void run() {​
                String signed = tos.preSignedURL(HttpMethod.GET, bucketName, objectKey, Duration.ofHours(1));​
                Log.i("preSignedURL", "generated url is " + signed);​
            }​
        });​
​
        tosThread.start();​
    }​
}​

Last updated: 2025.09.25 14:23:26

Public security network record in Beijing: No. 11010802032137