Standard download refers to downloading the complete object from a specified bucket using the SDK's getObject method. Before using this interface, please ensure that you have read access to this object.

Sample Code

The following code demonstrates how to download an object.

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.TosException;​
import com.volcengine.tos.model.object.GetObjectV2Input;​
import com.volcengine.tos.model.object.GetObjectV2Output;​
​
import java.io.BufferedReader;​
import java.io.IOException;​
import java.io.InputStreamReader;​
​
public class GetObjectInStringExample 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 bucketName = "your bucket name";​
        String objectKey = "your object key";​
        String securityToken = "your security token";​
​
        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() {​
                try{​
                    GetObjectV2Input input = new GetObjectV2Input().setBucket(bucketName).setKey(objectKey);​
                    ​
                    try(GetObjectV2Output output = tos.getObject(input);​
                        BufferedReader reader = new BufferedReader(new InputStreamReader(output.getContent()))) {​
                        Log.i("getObject", "begin to read content in object.");​
                        while (true) {​
                            String line = reader.readLine();​
                            if (line == null) {​
                                break;​
                            }​
                            Log.i("getObject", line);​
                        }​
                        Log.i("getObject", "getObject succeed, object's metadata is " + output.getGetObjectBasicOutput());​
                    } catch (IOException e) {​
                        Log.e("IOException", "read data in object failed");​
                        e.printStackTrace();​
                    }​
                } catch (TosException e) {​
                    if (e.getStatusCode() == 404) {​
                        ​
                        Log.e("TosException", "the object you want to download is not found");​
                    } else {​
                        Log.e("TosException", "getObject failed");​
                    }​
                    e.printStackTrace();​
                }​
            }​
        });​
​
        tosThread.start();​
    }​
}​

Relevant Documents

For API documentation on downloading objects, refer to GetObject.

Last updated: 2025.09.25 14:23:26

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