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Object Storage Service:List objects (OSS SDK for Go 1.0)

Dernière mise à jour :Sep 22, 2026

Cette rubrique explique comment répertorier les objets d'un bucket pour lequel la gestion des versions est activée, par exemple en listant tous les objets, les objets dont le nom contient un préfixe spécifié, ainsi que les objets et sous-répertoires d'un répertoire donné.

Notes

  • Cette rubrique utilise l'endpoint public de la région Chine (Hangzhou). Pour accéder à OSS depuis d'autres services Alibaba Cloud situés dans la même région, utilisez un endpoint interne. Pour plus d'informations sur les régions et les endpoints OSS, consultez Régions et endpoints.

  • Les identifiants d'accès utilisés dans cette rubrique sont obtenus à partir des variables d'environnement. Pour savoir comment configurer ces identifiants, consultez Configurer les identifiants d'accès.

  • Cette rubrique illustre la création d'une instance OSSClient avec un endpoint OSS. Pour d'autres configurations, telles que l'utilisation d'un domaine personnalisé ou l'authentification via des identifiants du Security Token Service (STS), consultez Configurer un client (Go SDK V1).

  • Pour répertorier les objets, vous devez disposer de l'autorisation oss:ListObjectVersions. Pour plus d'informations, consultez Accorder une politique personnalisée.

Scénarios

La figure suivante présente la structure des répertoires et des objets dans un bucket nommé examplebucket.

examplebucket
  └── fun
       └── exampleobject.jpg
       └── examplefile.txt
       └── destfolder
               └── image1.jpg
               └── image2.png
  └── srcfile.txt
  └── oss.jpg 

Les sections suivantes décrivent comment répertorier différents objets en spécifiant des conditions.

Pour plus d'informations sur les paramètres configurables lors du listage des objets, consultez ListObjectVersions (GetBucketVersions).

Exemple de code

Le code suivant montre comment répertorier les versions de tous les objets, y compris les marqueurs de suppression, dans un bucket spécifié :

package main

import (
	"log"

	"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 {
		log.Fatalf("Failed to create credentials provider: %v", err)
	}

	// 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.
	// 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 cn-hangzhou. Specify the actual region.
	clientOptions := []oss.ClientOption{oss.SetCredentialsProvider(&provider)}
	clientOptions = append(clientOptions, oss.Region("yourRegion"))
	// Specify the version of the signature algorithm.
	clientOptions = append(clientOptions, oss.AuthVersion(oss.AuthV4))
	client, err := oss.New("yourEndpoint", "", "", clientOptions...)
	if err != nil {
		log.Fatalf("Failed to create OSS client: %v", err)
	}

	// Specify the name of the bucket. 
	bucketName := "examplebucket"
	bucket, err := client.Bucket(bucketName)
	if err != nil {
		log.Fatalf("Failed to get bucket '%s': %v", bucketName, err)
	}

	// List the versions of all objects including delete markers in the bucket. 
	keyMarker := oss.KeyMarker("")
	versionIdMarker := oss.VersionIdMarker("")

	for {
		lor, err := bucket.ListObjectVersions(keyMarker, versionIdMarker)
		if err != nil {
			log.Fatalf("Failed to list object versions: %v", err)
		}

		// Display the version IDs of the objects. 
		for _, objVersion := range lor.ObjectVersions {
			log.Printf("Versionid: %s", objVersion.VersionId)
			log.Printf("Key: %s", objVersion.Key)
			log.Printf("Is Latest: %t", objVersion.IsLatest)
		}

		// Display the versions of the listed delete markers.
		for _, deleteMarker := range lor.ObjectDeleteMarkers {
			log.Printf("Delete Marker Versionid: %s", deleteMarker.VersionId)
			log.Printf("Delete Marker Key: %s", deleteMarker.Key)
		}

		// Check whether the required versions are listed. If the versions are incompletely listed, the list operation continues. If the versions are completely listed, the list operation stops. 
		keyMarker = oss.KeyMarker(lor.NextKeyMarker)
		versionIdMarker = oss.VersionIdMarker(lor.NextVersionIdMarker)
		if !lor.IsTruncated {
			break
		}
	}
}

Exemple de réponse :

Versionid: CAEQChiBgIDHzNPEthciIDYzZGQ5M2VjOTU2ODRmMzA4ZWM4ODk0NjVmMWEx****
Key: fun/
Is Latest true
Versionid: CAEQChiBgID61tnEthciIDNmOGM2MTQ3ZjU1NTQ2MGFhYWJjNjQxMTQxZWZh****
Key: fun/destfolder/
Is Latest true
Versionid: CAEQChiBgMDczt3EthciIDEwYjliZmQ4MDNiMDQ2Njk4YWMxM2NhM2E5NzQ3****
Key: fun/destfolder/image1.jpg
Is Latest true
Versionid: CAEQChiBgIDszt3EthciIGU5OWU0ZTllMGY3NTRmMmU5NzVjZmJkYmE3ZWYy****
Key: fun/destfolder/image2.png
Is Latest true
Versionid: CAEQChiBgICditzEthciIDBiNTg1ZTZkMDRlMzRjNDdiMjRjMTBlOGUzMTM0****
Key: fun/examplefile.txt
Is Latest true
Versionid: CAEQChiBgMC.itzEthciIDEzNWVlYjNhYzNmMjQ4NWM5Nzc2NzllY2FiYmQ3****
Key: fun/exampleobject.jpg
Is Latest true
Versionid: CAEQChiBgIDMgdbEthciIDUyMGI0NmZlNThkODQwY2ZhNmZhNTQ1Njk4ZTdj****
Key: oss.jpg
Is Latest true
Versionid: CAEQChiBgICIgdbEthciIDdlM2Q1YjYxZDIyZDQyMzI4MTRkNzVmYzdiMTBh****
Key: srcfile.txt
Is Latest true

Scénarios courants

Répertorier les versions des objets dont le nom contient un préfixe spécifié

Le code suivant montre comment répertorier les versions des objets dont le nom contient un préfixe spécifié :

package main

import (
	"log"

	"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 {
		log.Fatalf("Failed to create credentials provider: %v", err)
	}

	// 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. 
	// 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 cn-hangzhou. Specify the actual region.
	clientOptions := []oss.ClientOption{oss.SetCredentialsProvider(&provider)}
	clientOptions = append(clientOptions, oss.Region("yourRegion"))
	// Specify the version of the signature algorithm.
	clientOptions = append(clientOptions, oss.AuthVersion(oss.AuthV4))
	client, err := oss.New("yourEndpoint", "", "", clientOptions...)
	if err != nil {
		log.Fatalf("Failed to create OSS client: %v", err)
	}

	// Specify the name of the bucket. 
	bucketName := "examplebucket"
	bucket, err := client.Bucket(bucketName)
	if err != nil {
		log.Fatalf("Failed to get bucket '%s': %v", bucketName, err)
	}

	// Specify the Prefix parameter to list the versions of objects whose names contain the fun prefix. 
	prefix := oss.Prefix("fun")
	keyMarker := oss.KeyMarker("")
	versionIdMarker := oss.VersionIdMarker("")

	for {
		lor, err := bucket.ListObjectVersions(prefix, keyMarker, versionIdMarker)
		if err != nil {
			log.Fatalf("Failed to list object versions: %v", err)
		}

		// Display the version IDs of the objects. 
		for _, objVersion := range lor.ObjectVersions {
			log.Printf("VersionId: %s", objVersion.VersionId)
			log.Printf("Key: %s", objVersion.Key)
			log.Printf("Is Latest: %t", objVersion.IsLatest)
		}

		// Check whether the required versions are listed. If the versions are incompletely listed, the list operation continues. If the versions are completely listed, the list operation stops. 
		keyMarker = oss.KeyMarker(lor.NextKeyMarker)
		versionIdMarker = oss.VersionIdMarker(lor.NextVersionIdMarker)
		if !lor.IsTruncated {
			break
		}
	}
}

Résultats renvoyés :

Versionid: CAEQChiBgIDHzNPEthciIDYzZGQ5M2VjOTU2ODRmMzA4ZWM4ODk0NjVmMWEx****
Key: fun/
Is Latest true
Versionid: CAEQChiBgID61tnEthciIDNmOGM2MTQ3ZjU1NTQ2MGFhYWJjNjQxMTQxZWZh****
Key: fun/destfolder/
Is Latest true
Versionid: CAEQChiBgMDczt3EthciIDEwYjliZmQ4MDNiMDQ2Njk4YWMxM2NhM2E5NzQ3****
Key: fun/destfolder/image1.jpg
Is Latest true
Versionid: CAEQChiBgIDszt3EthciIGU5OWU0ZTllMGY3NTRmMmU5NzVjZmJkYmE3ZWYy****
Key: fun/destfolder/image2.png
Is Latest true
Versionid: CAEQChiBgICditzEthciIDBiNTg1ZTZkMDRlMzRjNDdiMjRjMTBlOGUzMTM0****
Key: fun/examplefile.txt
Is Latest true
Versionid: CAEQChiBgMC.itzEthciIDEzNWVlYjNhYzNmMjQ4NWM5Nzc2NzllY2FiYmQ3****
Key: fun/exampleobject.jpg
Is Latest true

Répertorier les versions d'un nombre spécifié d'objets

Le code suivant montre comment répertorier les versions d'un nombre spécifié d'objets :

package main

import (
	"log"

	"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 {
		log.Fatalf("Failed to create credentials provider: %v", err)
	}

	// 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.
	// 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 cn-hangzhou. Specify the actual region.
	clientOptions := []oss.ClientOption{oss.SetCredentialsProvider(&provider)}
	clientOptions = append(clientOptions, oss.Region("yourRegion"))
	// Specify the version of the signature algorithm.
	clientOptions = append(clientOptions, oss.AuthVersion(oss.AuthV4))
	client, err := oss.New("yourEndpoint", "", "", clientOptions...)
	if err != nil {
		log.Fatalf("Failed to create OSS client: %v", err)
	}

	// Specify the name of the bucket. 
	bucketName := "examplebucket"
	bucket, err := client.Bucket(bucketName)
	if err != nil {
		log.Fatalf("Failed to get bucket '%s': %v", bucketName, err)
	}

	// Specify the MaxKeys parameter to list up to four object versions in alphabetical order of the object names. 
	maxKeys := oss.MaxKeys(4)
	keyMarker := oss.KeyMarker("")
	versionIdMarker := oss.VersionIdMarker("")

	for {
		lor, err := bucket.ListObjectVersions(maxKeys, keyMarker, versionIdMarker)
		if err != nil {
			log.Fatalf("Failed to list object versions: %v", err)
		}

		// Display the version IDs of the objects. 
		for _, objVersion := range lor.ObjectVersions {
			log.Printf("Versionid: %s", objVersion.VersionId)
			log.Printf("Key: %s", objVersion.Key)
			log.Printf("Is Latest: %t", objVersion.IsLatest)
		}

		// Check whether the required versions are listed. If the versions are incompletely listed, the list operation continues. If the versions are completely listed, the list operation stops. 
		keyMarker = oss.KeyMarker(lor.NextKeyMarker)
		versionIdMarker = oss.VersionIdMarker(lor.NextVersionIdMarker)
		if !lor.IsTruncated {
			break
		}
	}
}

Exemple de réponse :

Versionid: CAEQChiBgIDHzNPEthciIDYzZGQ5M2VjOTU2ODRmMzA4ZWM4ODk0NjVmMWEx****
Key: fun/
Is Latest true
Versionid: CAEQChiBgID61tnEthciIDNmOGM2MTQ3ZjU1NTQ2MGFhYWJjNjQxMTQxZWZh****
Key: fun/destfolder/
Is Latest true
Versionid: CAEQChiBgMDczt3EthciIDEwYjliZmQ4MDNiMDQ2Njk4YWMxM2NhM2E5NzQ3****
Key: fun/destfolder/image1.jpg
Is Latest true
Versionid: CAEQChiBgIDszt3EthciIGU5OWU0ZTllMGY3NTRmMmU5NzVjZmJkYmE3ZWYy****
Key: fun/destfolder/image2.png
Is Latest true

Répertorier les versions de tous les objets par page

Le code suivant montre comment répertorier les versions de tous les objets par page :

package main

import (
	"log"

	"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 {
		log.Fatalf("Failed to create credentials provider: %v", err)
	}

	// 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. 
	// 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 cn-hangzhou. Specify the actual region.
	clientOptions := []oss.ClientOption{oss.SetCredentialsProvider(&provider)}
	clientOptions = append(clientOptions, oss.Region("yourRegion"))
	// Specify the version of the signature algorithm.
	clientOptions = append(clientOptions, oss.AuthVersion(oss.AuthV4))
	client, err := oss.New("yourEndpoint", "", "", clientOptions...)
	if err != nil {
		log.Fatalf("Failed to create OSS client: %v", err)
	}

	// Specify the name of the bucket. 
	bucketName := "examplebucket"
	bucket, err := client.Bucket(bucketName)
	if err != nil {
		log.Fatalf("Failed to get bucket '%s': %v", bucketName, err)
	}

	// List the versions of all objects in the bucket by page. 
	keyMarker := oss.KeyMarker("")
	// Specify the MaxKeys parameter to list up to four object versions in alphabetical order of the object names. 
	maxKeys := oss.MaxKeys(4)
	versionIdMarker := oss.VersionIdMarker("")

	for {
		lor, err := bucket.ListObjectVersions(maxKeys, keyMarker, versionIdMarker)
		if err != nil {
			log.Fatalf("Failed to list object versions: %v", err)
		}

		// Display the version IDs of the objects. 
		for _, objVersion := range lor.ObjectVersions {
			log.Printf("Versionid: %s", objVersion.VersionId)
			log.Printf("Key: %s", objVersion.Key)
			log.Printf("Is Latest: %t", objVersion.IsLatest)
		}

		log.Println("---------------")

		// Check whether the required versions are listed. If the versions are incompletely listed, the list operation continues. If the versions are completely listed, the list operation stops. 
		if lor.IsTruncated {
			keyMarker = oss.KeyMarker(lor.NextKeyMarker)
			versionIdMarker = oss.VersionIdMarker(lor.NextVersionIdMarker)
		} else {
			break
		}
	}
}

Exemple de réponse :

Versionid: CAEQChiBgIDHzNPEthciIDYzZGQ5M2VjOTU2ODRmMzA4ZWM4ODk0NjVmMWEx****
Key: fun/
Is Latest true
Versionid: CAEQChiBgID61tnEthciIDNmOGM2MTQ3ZjU1NTQ2MGFhYWJjNjQxMTQxZWZh****
Key: fun/destfolder/
Is Latest true
Versionid: CAEQChiBgMDczt3EthciIDEwYjliZmQ4MDNiMDQ2Njk4YWMxM2NhM2E5NzQ3****
Key: fun/destfolder/image1.jpg
Is Latest true
Versionid: CAEQChiBgIDszt3EthciIGU5OWU0ZTllMGY3NTRmMmU5NzVjZmJkYmE3ZWYy****
Key: fun/destfolder/image2.png
Is Latest true
---------------
Versionid: CAEQChiBgICditzEthciIDBiNTg1ZTZkMDRlMzRjNDdiMjRjMTBlOGUzMTM0****
Key: fun/examplefile.txt
Is Latest true
Versionid: CAEQChiBgMC.itzEthciIDEzNWVlYjNhYzNmMjQ4NWM5Nzc2NzllY2FiYmQ3****
Key: fun/exampleobject.jpg
Is Latest true
Versionid: CAEQChiBgIDMgdbEthciIDUyMGI0NmZlNThkODQwY2ZhNmZhNTQ1Njk4ZTdj****
Key: oss.jpg
Is Latest true
Versionid: CAEQChiBgICIgdbEthciIDdlM2Q1YjYxZDIyZDQyMzI4MTRkNzVmYzdiMTBh****
Key: srcfile.txt
Is Latest true
---------------

Référence

Pour plus d'informations sur l'opération API permettant de répertorier les versions de tous les objets d'un bucket, consultez ListObjectVersions.