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删除对象

最近更新时间:2021-06-08 15:01:51

简介

本文档提供关于对象的删除操作相关的 API 概览以及 SDK 示例代码。

API 操作名 操作描述
DELETE Object 删除单个对象 在存储桶中删除指定对象
DELETE Multiple Objects 删除多个对象 在存储桶中批量删除对象

SDK API 参考

SDK 所有接口的具体参数与方法说明,请参考 SDK API

删除对象

功能说明

删除指定的对象(DELETE Object)。

示例代码一:删除单个对象

Objective-C

QCloudDeleteObjectRequest* deleteObjectRequest = [QCloudDeleteObjectRequest new];
// 存储桶名称,格式为 BucketName-APPID
deleteObjectRequest.bucket = @"examplebucket-1250000000";

// 对象键,是对象在 COS 上的完整路径,如果带目录的话,格式为 "video/xxx/movie.mp4"
deleteObjectRequest.object = @"exampleobject";
[deleteObjectRequest setFinishBlock:^(id outputObject, NSError *error) {
   // outputObject 包含所有的响应 http 头部
   NSDictionary* info = (NSDictionary *) outputObject;
}];
[[QCloudCOSXMLService defaultCOSXML] DeleteObject:deleteObjectRequest];
说明:

更多完整示例,请前往 GitHub 查看。

Swift

let deleteObject = QCloudDeleteObjectRequest.init();
// 存储桶名称,格式为 BucketName-APPID
deleteObject.bucket = "examplebucket-1250000000";

// 对象键,是对象在 COS 上的完整路径,如果带目录的话,格式为 "video/xxx/movie.mp4"
deleteObject.object = "exampleobject";
deleteObject.finishBlock = {(result,error)in
   if let result = result {
       // result 包含响应的 header 信息
   } else {
       print(error!);
   }
}
QCloudCOSXMLService.defaultCOSXML().deleteObject(deleteObject);
说明:

更多完整示例,请前往 GitHub 查看。

示例代码二:删除目录

Objective-C

QCloudGetBucketRequest* request = [QCloudGetBucketRequest new];
// 存储桶名称,格式为 BucketName-APPID
request.bucket = @"examplebucket-1250000000";
// 单次返回的最大条目数量,默认1000
request.maxKeys = 100;
//要删除的目录名称:带'/'
request.prefix = @"prefix";
[request setFinishBlock:^(QCloudListBucketResult * result, NSError* error) {
   if(!error){
       NSMutableArray *deleteInfosArr = [NSMutableArray array];
       for (QCloudBucketContents *content in result.contents) {
           QCloudDeleteMultipleObjectRequest *delteRequest = [QCloudDeleteMultipleObjectRequest new];
           delteRequest.bucket = request.bucket;
            QCloudDeleteObjectInfo *object = [QCloudDeleteObjectInfo new];
           object.key = content.key;
           [deleteInfosArr addObject:object];
       }

       QCloudDeleteInfo *deleteInfos = [QCloudDeleteInfo new];
       deleteInfos.objects = [deleteInfosArr copy];

       QCloudDeleteMultipleObjectRequest *delteRequest = [QCloudDeleteMultipleObjectRequest new];
       delteRequest.bucket = @"examplebucket-1250000000";
       delteRequest.deleteObjects = deleteInfos;
       [delteRequest setFinishBlock:^(QCloudDeleteResult *outputObject, NSError *error) {
           NSLog(@"outputObject = %@",outputObject);
       }];
        [[QCloudCOSXMLService defaultCOSXML] DeleteMultipleObject:delteRequest];

   }
}];
[[QCloudCOSXMLService defaultCOSXML] GetBucket:request];
说明:

更多完整示例,请前往 GitHub 查看。

Swift

let getBucketReq = QCloudGetBucketRequest.init();

// 存储桶名称,格式为 BucketName-APPID
getBucketReq.bucket = "examplebucket-1250000000";

// 单次返回的最大条目数量,默认1000
getBucketReq.maxKeys = 100;

//要删除的目录名称:带'/'
getBucketReq.prefix = "dir/";

getBucketReq.setFinish { (result, error) in
   if let result = result {
       let contents = result.contents;
       let infos = NSMutableArray.init();
       for content in contents {
           let info = QCloudDeleteObjectInfo.init();
           info.key = content.key;
           infos.add(info);
       }
       let mutipleDel = QCloudDeleteMultipleObjectRequest.init();
       // 要删除的文件集合
       let deleteInfos = QCloudDeleteInfo.init();
       // 存储桶名称,格式为 BucketName-APPID
       mutipleDel.bucket = "examplebucket-1250000000";

       deleteInfos.objects = infos as! [QCloudDeleteObjectInfo];

       // 布尔值,这个值决定了是否启动 Quiet 模式:
       // true:启动 Quiet 模式
       // false:启动 Verbose 模式
       // 默认值为 False
       deleteInfos.quiet = false;

       // 封装了需要批量删除的多个对象的信息
       mutipleDel.deleteObjects = deleteInfos;

       mutipleDel.setFinish { (result, error) in
           if let result = result {
               let deleted = result.deletedObjects
               let failed = result.deletedFailedObjects
           } else {
               print(error!);
           }
       }
       QCloudCOSXMLService.defaultCOSXML().deleteMultipleObject(mutipleDel);
   } else {
       print(error!);
   }
}
QCloudCOSXMLService.defaultCOSXML().getBucket(getBucketReq);
说明:

更多完整示例,请前往 GitHub 查看。

删除多个对象

功能说明

批量删除多个对象(DELETE Multiple Objects)。

示例代码一:批量删除对象

Objective-C

QCloudDeleteMultipleObjectRequest* delteRequest = [QCloudDeleteMultipleObjectRequest new];
delteRequest.bucket = @"examplebucket-1250000000";
// 要删除的单个文件
QCloudDeleteObjectInfo* deletedObject0 = [QCloudDeleteObjectInfo new];
// 对象键,是对象在 COS 上的完整路径,如果带目录的话,格式为 "video/xxx/movie.mp4"
deletedObject0.key = @"exampleobject";
// 要删除的文件集合
QCloudDeleteInfo* deleteInfo = [QCloudDeleteInfo new];
// 布尔值,这个值决定了是否启动 Quiet 模式:
// true:启动 Quiet 模式
// false:启动 Verbose 模式
// 默认值为 False
deleteInfo.quiet = NO;
// 存放需要删除对象信息的数组
deleteInfo.objects = @[deletedObject0];
// 封装了需要批量删除的多个对象的信息
delteRequest.deleteObjects = deleteInfo;
[delteRequest setFinishBlock:^(QCloudDeleteResult* outputObject,
                              NSError *error) {
   // 可以从 outputObject 中获取 response 中 etag 或者自定义头部等信息

}];
[[QCloudCOSXMLService defaultCOSXML] DeleteMultipleObject:delteRequest];
说明:

更多完整示例,请前往 GitHub 查看。

Swift

let mutipleDel = QCloudDeleteMultipleObjectRequest.init();
// 存储桶名称,格式为 BucketName-APPID
mutipleDel.bucket = "examplebucket-1250000000";
// 要删除的单个文件
let info1 = QCloudDeleteObjectInfo.init();
// 对象键,是对象在 COS 上的完整路径,如果带目录的话,格式为 "video/xxx/movie.mp4"
info1.key = "exampleobject";
let info2 = QCloudDeleteObjectInfo.init();
// 要删除的文件集合
let deleteInfos = QCloudDeleteInfo.init();
// 存放需要删除对象信息的数组
deleteInfos.objects = [info1,info2];
// 布尔值,这个值决定了是否启动 Quiet 模式:
// true:启动 Quiet 模式
// false:启动 Verbose 模式
// 默认值为 False
deleteInfos.quiet = false;
// 封装了需要批量删除的多个对象的信息
mutipleDel.deleteObjects = deleteInfos;
mutipleDel.setFinish { (result, error) in
   if let result = result {
       let deleted = result.deletedObjects
       let failed = result.deletedFailedObjects
   } else {
       print(error!);
   }
}
QCloudCOSXMLService.defaultCOSXML().deleteMultipleObject(mutipleDel);
说明:

更多完整示例,请前往 GitHub 查看。

示例代码二:删除带指定前缀的对象

Objective-C

QCloudGetBucketRequest* request = [QCloudGetBucketRequest new];
// 存储桶名称,格式为 BucketName-APPID
request.bucket = @"examplebucket-1250000000";
// 单次返回的最大条目数量,默认1000
request.maxKeys = 100;
//如果要删除指定前缀的文件:prefix为文件名前缀
request.prefix = @"prefix";
[request setFinishBlock:^(QCloudListBucketResult * result, NSError* error) {
   if(!error){
       NSMutableArray *deleteInfosArr = [NSMutableArray array];
       for (QCloudBucketContents *content in result.contents) {
           QCloudDeleteMultipleObjectRequest *delteRequest = [QCloudDeleteMultipleObjectRequest new];
           delteRequest.bucket = request.bucket;
            QCloudDeleteObjectInfo *object = [QCloudDeleteObjectInfo new];
           object.key = content.key;
           [deleteInfosArr addObject:object];
       }

       QCloudDeleteInfo *deleteInfos = [QCloudDeleteInfo new];
       deleteInfos.objects = [deleteInfosArr copy];

       QCloudDeleteMultipleObjectRequest *delteRequest = [QCloudDeleteMultipleObjectRequest new];
       delteRequest.bucket = @"examplebucket-1250000000";
       delteRequest.deleteObjects = deleteInfos;
       [delteRequest setFinishBlock:^(QCloudDeleteResult *outputObject, NSError *error) {
           NSLog(@"outputObject = %@",outputObject);
       }];
        [[QCloudCOSXMLService defaultCOSXML] DeleteMultipleObject:delteRequest];

   }
}];
[[QCloudCOSXMLService defaultCOSXML] GetBucket:request];
说明:

更多完整示例,请前往 GitHub 查看。

Swift

let getBucketReq = QCloudGetBucketRequest.init();

// 存储桶名称,格式为 BucketName-APPID
getBucketReq.bucket = "examplebucket-1250000000";

// 单次返回的最大条目数量,默认1000
getBucketReq.maxKeys = 100;

//如果要删除指定前缀的文件:prefix为文件名前缀
getBucketReq.prefix = "dir/";

getBucketReq.setFinish { (result, error) in
   if let result = result {
       let contents = result.contents;
       let infos = NSMutableArray.init();
       for content in contents {
           let info = QCloudDeleteObjectInfo.init();
           info.key = content.key;
           infos.add(info);
       }
       let mutipleDel = QCloudDeleteMultipleObjectRequest.init();
       // 要删除的文件集合
       let deleteInfos = QCloudDeleteInfo.init();
       // 存储桶名称,格式为 BucketName-APPID
       mutipleDel.bucket = "examplebucket-1250000000";

       deleteInfos.objects = infos as! [QCloudDeleteObjectInfo];

       // 布尔值,这个值决定了是否启动 Quiet 模式:
       // true:启动 Quiet 模式
       // false:启动 Verbose 模式
       // 默认值为 False
       deleteInfos.quiet = false;

       // 封装了需要批量删除的多个对象的信息
       mutipleDel.deleteObjects = deleteInfos;

       mutipleDel.setFinish { (result, error) in
           if let result = result {
               let deleted = result.deletedObjects
               let failed = result.deletedFailedObjects
           } else {
               print(error!);
           }
       }
       QCloudCOSXMLService.defaultCOSXML().deleteMultipleObject(mutipleDel);
   } else {
       print(error!);
   }
}
QCloudCOSXMLService.defaultCOSXML().getBucket(getBucketReq);
说明:

更多完整示例,请前往 GitHub 查看。

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