1.aws-sdk-go-v2常用api
1.引入所需包
import (
"context"
"fmt"
"log"
"os"
"path/filepath"
"sync"
"time"
"github.com/aws/aws-sdk-go-v2/aws"
"github.com/aws/aws-sdk-go-v2/config"
"github.com/aws/aws-sdk-go-v2/credentials"
"github.com/aws/aws-sdk-go-v2/feature/s3/manager"
"github.com/aws/aws-sdk-go-v2/service/s3"
"github.com/aws/aws-sdk-go-v2/service/s3/types"
"github.com/gabriel-vasile/mimetype"
)
2.初始化aws配置
func initAwsConfig(partitionID, url, region, key, secret string) (cfg aws.Config) {
customResolver := aws.EndpointResolverWithOptionsFunc(func(service, region string, options ...interface{}) (aws.Endpoint, error) {
return aws.Endpoint{
PartitionID: partitionID,
URL: url,
SigningRegion: region,
}, nil
})
creds := credentials.NewStaticCredentialsProvider(key, secret, "")
cfg, err := config.LoadDefaultConfig(context.TODO(), config.WithCredentialsProvider(creds), config.WithEndpointResolverWithOptions(customResolver))
if err != nil {
log.Printf("error: %v", err)
return
}
return cfg
}
3.初始化aws客户端
func initAwsClient(region, url string, cfg aws.Config, style bool) *s3.Client {
awsS3Client := s3.NewFromConfig(cfg, func(o *s3.Options) {
o.UsePathStyle = style
o.Region = *aws.String(region)
o.BaseEndpoint = aws.String(url)
})
return awsS3Client
}
4.创建bucket
func createBUcket(bucket string, awsS3Client *s3.Client, storeyType string) {
createInput := &s3.CreateBucketInput{
Bucket: aws.String(bucket),
ACL: types.BucketCannedACLPublicRead,
}
out, err := awsS3Client.CreateBucket(context.TODO(), createInput)
fmt.Println(storeyType+"创建bucket返回信息：", out)
fmt.Println(storeyType+"创建bucket错误信息", err)
}
5.获取bucket信息
func headBucketInfo(bucket string, awsS3Client *s3.Client, storeyType string) {
input := &s3.HeadBucketInput{
Bucket: aws.String(bucket)}
out, err := awsS3Client.HeadBucket(context.TODO(), input)
if out != nil {
fmt.Println(storeyType+"返回bucket信息：", *out.BucketRegion)
}
if err != nil {
fmt.Println(storeyType+"错误信息", err)
}
}
4.普通文件上传
func uploadFile(bucket string, awsS3Client *s3.Client) {
// 打开要上传的文件
file, err := os.Open("D:\\DefaultInfo\\Pictures\\06.jpg")
if err != nil {
fmt.Println("上传文件报错", err)
}
defer file.Close()
putInput := &s3.PutObjectInput{
Bucket: aws.String(bucket),
Key: aws.String("image/20240522101923-aws.jpg"),
Body: file,
}
awsS3Client.PutObject(context.TODO(), putInput)
}
5.分块上传
// 分块上传 默认分块大小5m
func upload(bucket string, awsS3Client *s3.Client) {
//https://aws.github.io/aws-sdk-go-v2/docs/sdk-utilities/s3/
uploader := manager.NewUploader(awsS3Client)
filePath := "D:\\DefaultInfo\\Pictures\\06.jpg"
file, err := os.Open(filePath)
if err != nil {
fmt.Println("上传文件报错", err)
}
defer file.Close()
//检测文件的content-type
mtype, _ := mimetype.DetectReader(file)
putInput := &s3.PutObjectInput{
Bucket: aws.String(bucket),
Key: aws.String("image/20240522101923-manager222.jpg"),
Body: file,
ContentType: aws.String(mtype.String()),
}
result, err := uploader.Upload(context.TODO(), putInput)
fmt.Println("上传文件返回结果", result)
fmt.Println("上传文件", err)
}
6.获取文件信息
func getObjectinfo(bucket, key, storeyType string, awsS3Client *s3.Client) {
headObjectInput := &s3.HeadObjectInput{
Bucket: aws.String(bucket),
Key: aws.String("image/20240522101923-manager222.jpg"),
}
out, err := awsS3Client.HeadObject(context.TODO(), headObjectInput)
if out != nil {
fmt.Printf(storeyType+"获取文件信息：", *out.ContentType)
}
if err != nil {
fmt.Println(storeyType+"获取文件信息失败：", err)
}
}
7.对象复制
func copyObject(bucket, key, storeyType string, awsS3Client *s3.Client) {
copyInput := &s3.CopyObjectInput{
//目标文件bucket
Bucket: aws.String(bucket),
//拷贝后目标文件
Key: aws.String("image/20240522101923-copy-manager222.jpg"),
//源文件
CopySource: aws.String(bucket + "/image/20240522101923-manager222.jpg"),
}
out, err := awsS3Client.CopyObject(context.TODO(), copyInput)
if out != nil {
fmt.Printf(storeyType+"拷贝文件信息：", *out.CopyObjectResult)
}
if err != nil {
fmt.Println(storeyType+"拷贝文件信息失败：", err)
}
}
8.获取临时url
func getPresignedUrl(bucket, key, storeyType string, awsS3Client *s3.Client) {
presign := s3.NewPresignClient(awsS3Client)
duration := 10 * time.Minute
fmt.Println("换算为秒：", duration.Seconds())
options := func(o *s3.PresignOptions) {
o.Expires = duration
}
input := &s3.GetObjectInput{
Bucket: aws.String(bucket),
Key: aws.String("image/20240522101923-manager222.jpg"),
}
req, err := presign.PresignGetObject(context.TODO(), input, options)
fmt.Println(storeyType+"临时url信息：", req.URL)
fmt.Println(err)
}
9.获取指定bucket下的对象列表
func GetObjectList(bucket string, awsS3Client *s3.Client) {
input := &s3.ListObjectsV2Input{
Bucket: aws.String(bucket),
}
out, err := awsS3Client.ListObjectsV2(context.TODO(), input)
fmt.Println("out===", *out.KeyCount)
fmt.Println(err)
// for _, object := range out.Contents {
// fmt.Println(*object.Key)
// }
}
10.拷贝所有的对象到指定的bucket
func CopyALlObject(bucket, distbucket, storeyType string, awsS3Client *s3.Client) {
listinput := &s3.ListObjectsV2Input{
Bucket: aws.String(bucket),
}
listFile, err := awsS3Client.ListObjectsV2(context.TODO(), listinput)
fmt.Printf(storeyType+"获取文件信息失败：", err)
for _, fileName := range listFile.Contents {
copyInput := &s3.CopyObjectInput{
//目标文件bucket
Bucket: aws.String(distbucket),
//拷贝后目标文件
Key: aws.String(*fileName.Key),
//源文件
CopySource: aws.String(bucket + "/" + *fileName.Key),
}
out, err := awsS3Client.CopyObject(context.TODO(), copyInput)
if out != nil {
fmt.Printf(storeyType+"拷贝文件信息：", *out.CopyObjectResult)
}
if err != nil {
fmt.Println(storeyType+"拷贝文件信息失败：", err)
}
}
}
2.常用云存储使用awssdk
1.oss--阿里云
func OssClient() {
partitionID := "oss"
url := "https://oss-cn-shanghai.aliyuncs.com"
region := "ap-shanghai"
key := "xxxxxx"
secret := "xxxxx"
bucket := "bucket"
cfg := initAwsConfig(partitionID, url, region, key, secret)
awsS3Client := initAwsClient(region, url, cfg, false)
headBucketInfo(bucket, awsS3Client, "阿里云cos")
//createBUcket(bucket, awsS3Client, "阿里云cos")
//uploadFile(bucket, awsS3Client)
}
2.cos--腾讯云
func CosClient() {
partitionID := "cos"
url := "https://cos.ap-shanghai.myqcloud.com"
region := "ap-shanghai"
key := "xxxxxx"
secret := "xxxxxxx"
bucket := "xxxx-456798"
cfg := initAwsConfig(partitionID, url, region, key, secret)
awsS3Client := initAwsClient(region, url, cfg, false)
headBucketInfo(bucket, awsS3Client, "腾讯云cos")
//createBUcket(bucket, awsS3Client, "腾讯云cos")
//uploadFile(bucket, awsS3Client)
//upload(bucket, awsS3Client)
//getObjectinfo(bucket, key, "腾讯云cos", awsS3Client)
//copyObject(bucket, key, "腾讯云cos", awsS3Client)
//getPresignedUrl(bucket, key, "腾讯云cos", awsS3Client)
}
3.obs--华为云
func InitObs() {
url := "https://obs.myhuaweicloud.com"
region := "cn-east-3"
partitionID := "obs"
key := "xxxxxxx"
secret := "xxxxxx"
bucket := "bucket"
cfg := initAwsConfig(partitionID, url, region, key, secret)
awsS3Client := initAwsClient(region, url, cfg, false)
headBucketInfo(bucket, awsS3Client, "华为云obs")
//createBUcket(bucket, awsS3Client, "华为云obs")
//upload(bucket, awsS3Client)
}
4.minio
func InitMinIo() {
partitionID := "minio"
url := "http://127.0.0.1:9001"
region := "cn-east-1"
key := "minioadmin"
secret := "minioadmin"
//bucket := "bucket"
cfg := initAwsConfig(partitionID, url, region, key, secret)
awsS3Client := initAwsClient(region, url, cfg, true)
//headBucketInfo(bucket, awsS3Client, "minio")
//CopyALlObject("xbzqnewbkt", "chinareformbkt", "minio", awsS3Client)
//GetObjectList("gdqhbkt", awsS3Client)
downFileBysuffix("dfzqbkt", awsS3Client)
//createBUcket(bucket, awsS3Client, "minio")
//uploadFile(bucket, awsS3Client)
//upload(bucket, awsS3Client)
//getObjectinfo(bucket, key, "minio", awsS3Client)
//copyObject(bucket, key, "minio", awsS3Client)
//getPresignedUrl(bucket, key, "minio", awsS3Client)
}
