Object Storage Service:Delete objects

1. Log on to the OSS console.

2. In the left-side navigation pane, click Buckets. On the Buckets page, find and click the desired bucket.

3. In the left-side navigation tree, choose Object Management > Objects.

4. Delete OSS or HDFS objects.

   Delete OSS objects

   1. On the OSS Object tab, select one or more objects and click Permanently Delete under the object list.

   2. In the message that appears, click OK.

   Delete HDFS objects

   1. On the HDFS tab, find the object that you want to delete and click Permanently Delete in the Actions column.

      Note

      You cannot delete multiple objects on the HDFS tab at a time. You can manually delete all objects on the HDFS tab one by one.

   2. In the message that appears, click OK.

You can use ossbrowser to perform the same object-level operations that you can perform in the OSS console. You can follow the on-screen instructions in ossbrowser to delete objects. For more information, see Use ossbrowser.

The following sample code provides examples on how to delete a single object by using OSS SDKs for common programming languages. For information about how to delete one or more objects by using OSS SDKs for other programming languages, see Overview.

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;

public class Demo {
    public static void main(String[] args) throws Exception {
        // In this example, the endpoint of the China (Hangzhou) region is used. Specify your actual endpoint. 
        String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
        // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
        EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
        // Specify the name of the bucket. Example: examplebucket. 
        String bucketName = "examplebucket";
        // Specify the full path of the object. Do not include the bucket name in the full path. 
        String objectName = "exampleobject.txt";

        // Create an OSSClient instance. 
        OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);

        try {
            // Delete the object or the directory. Before you delete a directory, make sure that the directory does not contain objects. 
            ossClient.deleteObject(bucketName, objectName);
        } catch (OSSException oe) {
            System.out.println("Caught an OSSException, which means your request made it to OSS, "
                    + "but was rejected with an error response for some reason.");
            System.out.println("Error Message:" + oe.getErrorMessage());
            System.out.println("Error Code:" + oe.getErrorCode());
            System.out.println("Request ID:" + oe.getRequestId());
            System.out.println("Host ID:" + oe.getHostId());
        } catch (ClientException ce) {
            System.out.println("Caught an ClientException, which means the client encountered "
                    + "a serious internal problem while trying to communicate with OSS, "
                    + "such as not being able to access the network.");
            System.out.println("Error Message:" + ce.getMessage());
        } finally {
            if (ossClient != null) {
                ossClient.shutdown();
            }
        }
    }
}            

<?php
if (is_file(__DIR__ . '/../autoload.php')) {
    require_once __DIR__ . '/../autoload.php';
}
if (is_file(__DIR__ . '/../vendor/autoload.php')) {
    require_once __DIR__ . '/../vendor/autoload.php';
}

use OSS\Credentials\EnvironmentVariableCredentialsProvider;
use OSS\OssClient;
use OSS\CoreOssException;

// Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
$provider = new EnvironmentVariableCredentialsProvider();
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
$endpoint = "yourEndpoint";
// Specify the name of the bucket. Example: examplebucket. 
$bucket = "examplebucket";
// Specify the full path of the object. Example: exampledir/exampleobject.txt. Do not include the bucket name in the full path. 
$object = "exampledir/exampleobject.txt";

try{
    $config = array(
        "provider" => $provider,
        "endpoint" => $endpoint,
    );
    $ossClient = new OssClient($config);

    $ossClient->deleteObject($bucket, $object);
} catch(OssException $e) {
    printf(__FUNCTION__ . ": FAILED\n");
    printf($e->getMessage() . "\n");
    return;
}
print(__FUNCTION__ . "OK" . "\n");          

const OSS = require('ali-oss');

const client = new OSS({
  // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
  region: 'oss-cn-hangzhou',
  // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
  accessKeyId: process.env.OSS_ACCESS_KEY_ID,
  accessKeySecret: process.env.OSS_ACCESS_KEY_SECRET,
  // Specify the name of the bucket. 
  bucket: 'examplebucket',
});

async function deleteObject() {
  try {
    // Specify the full path of the object. Do not include the bucket name in the full path. 
    const result = await client.delete('exampleobject.txt');
    console.log(result);
  } catch (error) {
    console.log(error);
  }
}

deleteObject();

# -*- coding: utf-8 -*-
import oss2
from oss2.credentials import EnvironmentVariableCredentialsProvider

# Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
auth = oss2.ProviderAuth(EnvironmentVariableCredentialsProvider())
# Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
# Specify the name of the bucket. Example: examplebucket. 
bucket = oss2.Bucket(auth, 'https://oss-cn-hangzhou.aliyuncs.com', 'examplebucket')

# Delete the object. 
# Specify the full path of the object that you want to delete. Do not include the bucket name in the full path. Example: exampledir/exampleobject.txt. 
# To delete a directory, specify the directory name. If the directory contains objects, you must delete all objects from the directory before you can delete the directory. 
bucket.delete_object('exampledir/exampleobject.txt')            

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8" />
  <title>Document</title>
</head>

<body>
  <button id="delete">Delete</button> 
  <!-- Import the SDK file -->
  <script type="text/javascript" src="https://gosspublic.alicdn.com/aliyun-oss-sdk-6.18.0.min.js"></script>
  <script type="text/javascript">
    const client = new OSS({
      // Specify the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the region to oss-cn-hangzhou. 
      region: 'yourRegion',
      // Specify the temporary AccessKey pair obtained from STS. The AccessKey pair consists of an AccessKey ID and an AccessKey secret. 
      accessKeyId: 'yourAccessKeyId',
      accessKeySecret: 'yourAccessKeySecret',
      // Specify the security token that you obtained from STS. 
      stsToken: 'yourSecurityToken',
      // Specify the name of the bucket. Example: examplebucket. 
      bucket: "examplebucket",
    });

    const deleteSingle = document.getElementById("delete");   

    // Delete a single object. 
    deleteSingle.addEventListener("click", async () => {
      // Specify the name of the object that you want to delete. Specify the full path of the object. Do not include the bucket name in the full path. Example: exampledir/exampleobject.txt. 
      let result = await client.delete('exampledir/exampleobject.txt');
      console.log(result);
    });

  </script>
</body>

</html>

using Aliyun.OSS;
// Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
var endpoint = "yourEndpoint";
// Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
var accessKeyId = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_ID");
var accessKeySecret = Environment.GetEnvironmentVariable("OSS_ACCESS_KEY_SECRET");
// Specify the name of the bucket. Example: examplebucket. 
var bucketName = "examplebucket";
// Specify the full path of the object. Do not include the bucket name in the full path. Example: exampledir/exampleobject.txt. 
var objectName = "exampledir/exampleobject.txt";
// Create an OSSClient instance. 
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    // Delete the object. 
    client.DeleteObject(bucketName, objectName);
    Console.WriteLine("Delete object succeeded");
}
catch (Exception ex)
{
    Console.WriteLine("Delete object failed. {0}", ex.Message);
}

// Create a delete request. 
// Specify the name of the bucket and the full path of the object. In this example, the bucket name is examplebucket and the full path of the object is exampledir/exampleobject.txt. Do not include the bucket name in the full path of the object. 
DeleteObjectRequest delete = new DeleteObjectRequest("examplebucket", "exampledir/exampleobject.txt");
// Asynchronously delete the object. 
OSSAsyncTask deleteTask = oss.asyncDeleteObject(delete, new OSSCompletedCallback<DeleteObjectRequest, DeleteObjectResult>() {
    @Override
    public void onSuccess(DeleteObjectRequest request, DeleteObjectResult result) {
        Log.d("asyncDeleteObject", "success!");
    }

    @Override
    public void onFailure(DeleteObjectRequest request, ClientException clientExcepion, ServiceException serviceException) {
        // Handle request exceptions. 
        if (clientExcepion != null) {
            // Handle client-side exceptions, such as network exceptions. 
            clientExcepion.printStackTrace();
        }
        if (serviceException != null) {
            // Handle server-side exceptions. 
            Log.e("ErrorCode", serviceException.getErrorCode());
            Log.e("RequestId", serviceException.getRequestId());
            Log.e("HostId", serviceException.getHostId());
            Log.e("RawMessage", serviceException.getRawMessage());
        }
    }
});

package main

import (
    "fmt"
    "os"
    "github.com/aliyun/aliyun-oss-go-sdk/oss"
)

func main() {
    // Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
    provider, err := oss.NewEnvironmentVariableCredentialsProvider()
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }

    // Create an OSSClient instance. 
    // Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. Specify your actual endpoint. 
    client, err := oss.New("yourEndpoint", "", "", oss.SetCredentialsProvider(&provider))
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }
    // Specify the name of the bucket. Example: examplebucket. 
    bucketName := "examplebucket"
    // Set objectName to the full path of the object that you want to delete. The full path must contain the extension of the object name but cannot contain the bucket name. Example: exampledir/exampleobject.txt. 
    // If you want to delete a directory, set objectName to the directory name. If the directory contains objects, you must delete all objects from the directory before you can delete the directory. 
    objectName := "exampledir/exampleobject.txt"

    bucket, err := client.Bucket(bucketName)
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }

    // Delete the object. 
    err = bucket.DeleteObject(objectName)
    if err != nil {
        fmt.Println("Error:", err)
        os.Exit(-1)
    }
}

OSSDeleteObjectRequest * delete = [OSSDeleteObjectRequest new];
// Specify the name of the bucket. Example: examplebucket.
delete.bucketName = @"examplebucket";
// Specify the full path of the object. The full path cannot contain the bucket name. Example: exampleobject.txt. 
delete.objectKey = @"exampleobject.txt";

OSSTask * deleteTask = [client deleteObject:delete];

[deleteTask continueWithBlock:^id(OSSTask *task) {
    if (!task.error) {
        // ...
    }
    return nil;
}];

// [deleteTask waitUntilFinished];

#include <alibabacloud/oss/OssClient.h>
using namespace AlibabaCloud::OSS;

int main(void)
{
    /* Initialize information about the account that is used to access OSS. */
            
    /* Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
    std::string Endpoint = "yourEndpoint";
    /* Specify the name of the bucket. Example: examplebucket. */
    std::string BucketName = "examplebucket";
    /* Specify the full path of the object. Example: exampleobject.txt. Do not include the bucket name in the full path. */
    /* If you want to delete a directory, set ObjectName to the directory name. If the directory contains objects, delete all objects from the directory before you delete the directory. */
    std::string ObjectName = "exampleobject.txt";

    /* Initialize resources such as network resources. */
    InitializeSdk();

    ClientConfiguration conf;
    /* Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. */
    auto credentialsProvider = std::make_shared<EnvironmentVariableCredentialsProvider>();
    OssClient client(Endpoint, credentialsProvider, conf);
   
    DeleteObjectRequest request(BucketName, ObjectName);

    /* Delete the object. */
    auto outcome = client.DeleteObject(request);

    if (!outcome.isSuccess()) {
        /* Handle exceptions. */
        std::cout << "DeleteObject fail" <<
        ",code:" << outcome.error().Code() <<
        ",message:" << outcome.error().Message() <<
        ",requestId:" << outcome.error().RequestId() << std::endl;
        return -1;
    }

    /* Release resources such as network resources. */
    ShutdownSdk();
    return 0;
}

#include "oss_api.h"
#include "aos_http_io.h"
/* Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. */
const char *endpoint = "https://oss-cn-hangzhou.aliyuncs.com";
/* Specify the name of the bucket. Example: examplebucket. */
const char *bucket_name = "examplebucket";
/* Specify the full path of the object that you want to delete. Do not include the bucket name in the full path. */
const char *object_name = "exampleobject.jpg";
void init_options(oss_request_options_t *options)
{
    options->config = oss_config_create(options->pool);
    /* Use a char* string to initialize data of the aos_string_t type. */
    aos_str_set(&options->config->endpoint, endpoint);
    /* Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. */
    aos_str_set(&options->config->access_key_id, getenv("OSS_ACCESS_KEY_ID"));
    aos_str_set(&options->config->access_key_secret, getenv("OSS_ACCESS_KEY_SECRET"));
    /* Specify whether to use CNAME. The value 0 indicates that CNAME is not used. */
    options->config->is_cname = 0;
    /* Specify network parameters, such as the timeout period. */
    options->ctl = aos_http_controller_create(options->pool, 0);
}
int main(int argc, char *argv[])
{
    /* Call the aos_http_io_initialize method in main() to initialize global resources, such as network resources and memory resources. */
    if (aos_http_io_initialize(NULL, 0) != AOSE_OK) {
        exit(1);
    }
    /* Create a memory pool to manage memory. aos_pool_t is equivalent to apr_pool_t. The code used to create a memory pool is included in the APR library. */
    aos_pool_t *pool;
    /* Create a memory pool. The value of the second parameter is NULL. This value indicates that the pool does not inherit other memory pools. */
    aos_pool_create(&pool, NULL);
    /* Create and initialize options. This parameter includes global configuration information, such as endpoint, access_key_id, access_key_secret, is_cname, and curl. */
    oss_request_options_t *oss_client_options;
    /* Allocate the memory resources in the memory pool to the options. */
    oss_client_options = oss_request_options_create(pool);
    /* Initialize oss_client_options. */
    init_options(oss_client_options);
    /* Initialize the parameters. */
    aos_string_t bucket;
    aos_string_t object;
    aos_table_t *resp_headers = NULL; 
    aos_status_t *resp_status = NULL; 
    /* Assign char* data to a bucket of the aos_string_t type. */
    aos_str_set(&bucket, bucket_name);
    aos_str_set(&object, object_name);
    /* Delete the object. */
    resp_status = oss_delete_object(oss_client_options, &bucket, &object, &resp_headers);
    /* Determine whether the object is deleted. */
    if (aos_status_is_ok(resp_status)) {
        printf("delete object succeed\n");
    } else {
        printf("delete object failed\n");
    }
    /* Release the memory pool. This operation releases the memory resources allocated for the request. */
    aos_pool_destroy(pool);
    /* Release the allocated global resources. */
    aos_http_io_deinitialize();
    return 0;
}

require 'aliyun/oss'
client = Aliyun::OSS::Client.new(
  # Specify the endpoint of the region in which the bucket is located. For example, if the bucket is located in the China (Hangzhou) region, set the endpoint to https://oss-cn-hangzhou.aliyuncs.com. 
  endpoint: 'https://oss-cn-hangzhou.aliyuncs.com',
  # Obtain access credentials from environment variables. Before you run the sample code, make sure that the OSS_ACCESS_KEY_ID and OSS_ACCESS_KEY_SECRET environment variables are configured. 
  access_key_id: ENV['OSS_ACCESS_KEY_ID'],
  access_key_secret: ENV['OSS_ACCESS_KEY_SECRET']
)
# Specify the name of the bucket. Example: examplebucket. 
bucket = client.get_bucket('examplebucket')
# Specify the full path of the object. Example: exampledir/exampleobject.txt. Do not include the bucket name in the full path. 
bucket.delete_object('exampledir/exampleobject.txt')            

For information about how to delete objects by using ossutil, see rm.

If your business requires a high level of customization, you can directly call RESTful APIs. To directly call an API, you must include the signature calculation in your code.

For information about the API operation that you can call to delete a single object, see DeleteObject.

For information about the API operation that you can call to delete multiple objects, see DeleteMultipleObjects.