擷取對象標籤

package main

import (
	"context"
	"flag"
	"log"

	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss"
	"github.com/aliyun/alibabacloud-oss-go-sdk-v2/oss/credentials"
)

// 定義全域變數
var (
	region     string // 儲存地區
	bucketName string // 儲存空間名稱
	objectName string // 對象名稱
)

// init函數用於初始化命令列參數
func init() {
	flag.StringVar(&region, "region", "", "The region in which the bucket is located.")
	flag.StringVar(&bucketName, "bucket", "", "The name of the bucket.")
	flag.StringVar(&objectName, "object", "", "The name of the object.")
}

func main() {
	// 解析命令列參數
	flag.Parse()

	// 檢查region是否為空白
	if len(region) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, region required")
	}

	// 檢查bucket名稱是否為空白
	if len(bucketName) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, bucket name required")
	}

	// 檢查object名稱是否為空白
	if len(objectName) == 0 {
		flag.PrintDefaults()
		log.Fatalf("invalid parameters, object name required")
	}

	// 載入預設配置並設定憑證提供者和地區
	cfg := oss.LoadDefaultConfig().
		WithCredentialsProvider(credentials.NewEnvironmentVariableCredentialsProvider()).
		WithRegion(region)

	// 建立OSS用戶端
	client := oss.NewClient(cfg)

	// 建立擷取對象標籤的請求
	getRequest := &oss.GetObjectTaggingRequest{
		Bucket:    oss.Ptr(bucketName),      // 儲存空間名稱
		Key:       oss.Ptr(objectName),      // 對象名稱
		VersionId: oss.Ptr("yourVersionId"), // 填寫實際的版本ID
	}

	// 執行擷取對象標籤的操作並處理結果
	getResult, err := client.GetObjectTagging(context.TODO(), getRequest)
	if err != nil {
		log.Fatalf("failed to get object tagging %v", err)
	}

	// 列印擷取對象標籤的數量
	log.Printf("get object tagging result:%#v\n", len(getResult.Tags))
}