go操作aws s3

v2

官方推荐版本，需要go版本>=1.20

安装

go get github.com/aws/aws-sdk-go-v2
go get github.com/aws/aws-sdk-go-v2/config
go get github.com/aws/aws-sdk-go-v2/service/s3

必要参数

bucket: 存储桶的名称

Region: 存储桶所在区域,例us-east-1

accessKeyID: 访问存储桶所需的KeyID

secretAccessKey: 访问存储桶所需的AccessKey

如何获取accessKeyID和secretAccessKey:指南

var (s3Client *s3.Clientbucket   = "yourbucketname"
)func InitS3Client() {accessKeyID := "xxxxx"secretAccessKey := "xxxxx"cfg, err := config.LoadDefaultConfig(context.TODO(),config.WithRegion("us-east-1"),config.WithCredentialsProvider(credentials.NewStaticCredentialsProvider(accessKeyID, secretAccessKey, "")),)if err != nil {log.Fatalf("unable to load SDK config, %v", err)}s3Client = s3.NewFromConfig(cfg)
}func UploadToS3(filePath, fileName, mimeType string) (string, error) {file, err := os.Open(filePath)if err != nil {return "", fmt.Errorf("failed to open file %q, %v", filePath, err)}defer file.Close()_, err = s3Client.PutObject(context.TODO(), &s3.PutObjectInput{Bucket:      aws.String(bucket),Key:         aws.String(fileName),Body:        file,ContentType: aws.String(mimeType),})if err != nil {return "", fmt.Errorf("failed to upload file to S3, %v", err)}return fmt.Sprintf("https://%s.s3.amazonaws.com/%s", bucket, fileName), nil
}

若不想升级go1.20，可以使用v1版本

v1

安装

go get github.com/aws/aws-sdk-go

var (s3Client *s3.S3bucket   = "yourbucketname"
)func InitS3Client() {accessKeyID := "xxxxx"secretAccessKey := "xxxxx"sess, err := session.NewSession(&aws.Config{Region:      aws.String("us-east-1"),Credentials: credentials.NewStaticCredentials(accessKeyID, secretAccessKey, ""),})if err != nil {log.Fatalf("unable to create AWS session, %v", err)}s3Client = s3.New(sess)
}func UploadToS3(content []byte, fileName, mimeType string) (string, error) {_, err := s3Client.PutObject(&s3.PutObjectInput{Bucket:      aws.String(bucket),Key:         aws.String(fileName),Body:        bytes.NewReader(content),ContentType: aws.String(mimeType),})if err != nil {return "", fmt.Errorf("failed to upload file to S3, %v", err)}return fmt.Sprintf("https://%s.s3.amazonaws.com/%s", bucket, fileName), nil
}