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删除场景（Go SDK）

最近更新时间：2024.02.04 18:31:02

首次发布时间：2023.01.18 16:55:22

本文介绍删除对象的常用场景代码。

删除目录

以下代码用于删除指定目录下 exampledir 的对象。

package main

import (
   "context"
   "fmt"

   "github.com/volcengine/ve-tos-golang-sdk/v2/tos"
)

func checkErr(err error) {
   if err != nil {
      if serverErr, ok := err.(*tos.TosServerError); ok {
         if serverErr.StatusCode == http.StatusNotFound {
            return
         }
         fmt.Println("Error:", serverErr.Error())
         fmt.Println("Request ID:", serverErr.RequestID)
         fmt.Println("Response Status Code:", serverErr.StatusCode)
         fmt.Println("Response Header:", serverErr.Header)
         fmt.Println("Response Err Code:", serverErr.Code)
         fmt.Println("Response Err Msg:", serverErr.Message)
      } else if clientErr, ok := err.(*tos.TosClientError); ok {
         fmt.Println("Error:", clientErr.Error())
         fmt.Println("Client Cause Err:", clientErr.Cause.Error())
      } else {
         fmt.Println("Error:", err)
      }
      panic(err)
   }
}

func main() {
   var (
      accessKey = os.Getenv("TOS_ACCESS_KEY")
      secretKey = os.Getenv("TOS_SECRET_KEY")
      // Bucket 对应的 Endpoint，以华北2（北京）为例：https://tos-cn-beijing.volces.com
      endpoint = "https://tos-cn-beijing.volces.com"
      region   = "cn-beijing"
      // 填写 BucketName
      bucketName = "*** Provide your bucket name ***"

      ctx = context.Background()
   )
   // 初始化客户端
   client, err := tos.NewClientV2(endpoint, tos.WithRegion(region), tos.WithCredentials(tos.NewStaticCredentials(accessKey, secretKey)))
   checkErr(err)
   // 列举指定前缀下的所有对象
   truncated := true
   continuationToken := ""
   prefix := "exampledir/"

   for truncated {

      output, err := client.ListObjectsType2(ctx, &tos.ListObjectsType2Input{
         Bucket:            bucketName,
         MaxKeys:           1000,
         ContinuationToken: continuationToken,
         Prefix:            prefix,
      })
      checkErr(err)
      for _, obj := range output.Contents {
         deleteOutput, err := client.DeleteObjectV2(ctx, &tos.DeleteObjectV2Input{
            Bucket: bucketName,
            Key:    obj.Key,
         })
         checkErr(err)
         fmt.Println("DeleteObjectV2 Request ID:", deleteOutput.RequestID)
      }
      truncated = output.IsTruncated
      continuationToken = output.NextContinuationToken
   }

}

清空桶

以下代码用于清空整个桶，包括删除所有对象、删除所有未合并的对象。

package main

import (
    "context"
    "fmt"
    "net/http"
    "os"

    "github.com/volcengine/ve-tos-golang-sdk/v2/tos"
)

func checkErr(err error) {
    if err != nil {
       if serverErr, ok := err.(*tos.TosServerError); ok {
          if serverErr.StatusCode == http.StatusNotFound {
             return
          }
          fmt.Println("Error:", serverErr.Error())
          fmt.Println("Request ID:", serverErr.RequestID)
          fmt.Println("Response Status Code:", serverErr.StatusCode)
          fmt.Println("Response Header:", serverErr.Header)
          fmt.Println("Response Err Code:", serverErr.Code)
          fmt.Println("Response Err Msg:", serverErr.Message)
       } else if clientErr, ok := err.(*tos.TosClientError); ok {
          fmt.Println("Error:", clientErr.Error())
          fmt.Println("Client Cause Err:", clientErr.Cause.Error())
       } else {
          fmt.Println("Error:", err)
       }
       panic(err)
    }
}

func main() {
    var (
       accessKey = os.Getenv("TOS_ACCESS_KEY")
       secretKey = os.Getenv("TOS_SECRET_KEY")
       // Bucket 对应的 Endpoint，以华北2（北京）为例：https://tos-cn-beijing.volces.com
       endpoint = "https://tos-cn-beijing.volces.com"
       region   = "cn-beijing"
       // 填写 BucketName
       bucketName = "*** Provide your bucket name ***"

       ctx = context.Background()
    )
    // 初始化客户端
    client, err := tos.NewClientV2(endpoint, tos.WithRegion(region), tos.WithCredentials(tos.NewStaticCredentials(accessKey, secretKey)))
    checkErr(err)
    // 删除所有对象
    truncated := true
    continuationToken := ""
    for truncated {

       output, err := client.ListObjectsType2(ctx, &tos.ListObjectsType2Input{
          Bucket:            bucketName,
          MaxKeys:           1000,
          ContinuationToken: continuationToken,
       })
       checkErr(err)
       for _, obj := range output.Contents {
          deleteOutput, err := client.DeleteObjectV2(ctx, &tos.DeleteObjectV2Input{
             Bucket: bucketName,
             Key:    obj.Key,
          })
          checkErr(err)
          fmt.Println("DeleteObjectV2 Request ID:", deleteOutput.RequestID)
       }
       truncated = output.IsTruncated
       continuationToken = output.NextContinuationToken
    }

    // 终止所有未完成的分片
    truncated = true
    marker := ""
    uploadIDMarker := ""
    for truncated {

       output, err := client.ListMultipartUploadsV2(ctx, &tos.ListMultipartUploadsV2Input{
          Bucket:         bucketName,
          MaxUploads:     1000,
          KeyMarker:      marker,
          UploadIDMarker: uploadIDMarker,
       })
       checkErr(err)
       for _, upload := range output.Uploads {
          abortUpload, err := client.AbortMultipartUpload(ctx, &tos.AbortMultipartUploadInput{
             Bucket:   bucketName,
             Key:      upload.Key,
             UploadID: upload.UploadID,
          })
          checkErr(err)
          fmt.Println("AbortMultipartUpload Upload ID:", upload.UploadID, " Request ID:", abortUpload.RequestID)
       }
       truncated = output.IsTruncated
       marker = output.NextKeyMarker
       uploadIDMarker = output.NextUploadIDMarker
    }

}

清空开启多版本的桶

以下代码用于清空整个开启多版本桶的示例代码，包括删除所有对象的多个版本、删除删除标记的多个版本、删除所有未合并的对象。

package main

import (
    "context"
    "fmt"
    "net/http"
    "os"

    "github.com/volcengine/ve-tos-golang-sdk/v2/tos"
)

func checkErr(err error) {
    if err != nil {
       if serverErr, ok := err.(*tos.TosServerError); ok {
          if serverErr.StatusCode == http.StatusNotFound {
             return
          }
          fmt.Println("Error:", serverErr.Error())
          fmt.Println("Request ID:", serverErr.RequestID)
          fmt.Println("Response Status Code:", serverErr.StatusCode)
          fmt.Println("Response Header:", serverErr.Header)
          fmt.Println("Response Err Code:", serverErr.Code)
          fmt.Println("Response Err Msg:", serverErr.Message)
       } else if clientErr, ok := err.(*tos.TosClientError); ok {
          fmt.Println("Error:", clientErr.Error())
          fmt.Println("Client Cause Err:", clientErr.Cause.Error())
       } else {
          fmt.Println("Error:", err)
       }
       panic(err)
    }
}

func main() {
    var (
       accessKey = os.Getenv("TOS_ACCESS_KEY")
       secretKey = os.Getenv("TOS_SECRET_KEY")
       // Bucket 对应的 Endpoint，以华北2（北京）为例：https://tos-cn-beijing.volces.com
       endpoint = "https://tos-cn-beijing.volces.com"
       region   = "cn-beijing"
       // 填写 BucketName
       bucketName = "*** Provide your bucket name ***"

       ctx = context.Background()
    )
    // 初始化客户端
    client, err := tos.NewClientV2(endpoint, tos.WithRegion(region), tos.WithCredentials(tos.NewStaticCredentials(accessKey, secretKey)))
    checkErr(err)

    // 删除桶中所有对象
    truncated := true
    marker := ""
    versionIdMarker := ""

    for truncated {
       listOutput, err := client.ListObjectVersionsV2(ctx, &tos.ListObjectVersionsV2Input{
          Bucket: bucketName,
          ListObjectVersionsInput: tos.ListObjectVersionsInput{
             MaxKeys:         1000,
             KeyMarker:       marker,
             VersionIDMarker: versionIdMarker,
          },
       })
       checkErr(err)
       for _, obj := range listOutput.Versions {
          // 删除多版本对象
          output, err := client.DeleteObjectV2(ctx, &tos.DeleteObjectV2Input{
             Bucket:    bucketName,
             Key:       obj.Key,
             VersionID: obj.VersionID,
          })
          checkErr(err)
          fmt.Printf("Delete %s, Request ID: %s\n", obj.Key, output.RequestID)

       }
       // 删除标记信息
       for _, deleteMarker := range listOutput.DeleteMarkers {
          output, err := client.DeleteObjectV2(ctx, &tos.DeleteObjectV2Input{
             Bucket:    bucketName,
             Key:       deleteMarker.Key,
             VersionID: deleteMarker.VersionID,
          })
          checkErr(err)
          fmt.Printf("Delete deleteMarker %s, Request ID: %s\n", deleteMarker.Key, output.RequestID)
       }
       truncated = listOutput.IsTruncated
       marker = listOutput.NextKeyMarker
       versionIdMarker = listOutput.NextVersionIDMarker
    }
    // 删除未完成的分片
    truncated = true
    marker = ""
    uploadIDMarker := ""
    for truncated {

       output, err := client.ListMultipartUploadsV2(ctx, &tos.ListMultipartUploadsV2Input{
          Bucket:         bucketName,
          MaxUploads:     1000,
          KeyMarker:      marker,
          UploadIDMarker: uploadIDMarker,
       })
       checkErr(err)
       for _, upload := range output.Uploads {
          abortUpload, err := client.AbortMultipartUpload(ctx, &tos.AbortMultipartUploadInput{
             Bucket:   bucketName,
             Key:      upload.Key,
             UploadID: upload.UploadID,
          })
          checkErr(err)
          fmt.Println("AbortMultipartUpload Upload ID:", upload.UploadID, " Request ID:", abortUpload.RequestID)
       }
       truncated = output.IsTruncated
       marker = output.NextKeyMarker
       uploadIDMarker = output.NextUploadIDMarker
    }

}

删除目录

清空桶

清空开启多版本的桶

对象存储

删除场景（Go SDK）

删除目录

清空桶

清空开启多版本的桶