創建Bucket（一）

定義常量值：endpoint（訪問域名）
accessKeyId （ram賬號訪問秘鑰id）
accessKeySecret(ram子賬號秘鑰密碼）

創建Bucket
createBucket(String bucketName, int storageClass, int dataRedundancyType, int cannedACL)
輸入參數 bucketName:桶名稱 storageClass:存儲類型
dataRedundancyType:數據容災類型
cannedACL:數據讀寫權限
我們除了第一個參數是用戶自己定義的字符串外，其他三個參數都是該存儲空間的配置屬性
我們在傳入時采用int型 具體取值如下
存儲類型：1：標準 2：低頻 3：歸檔 4：冷歸檔
容災類型：0：默認無 1：有
讀寫權限：0：默認私有 1：公共讀 2：公共讀寫
輸出：出參：int 1：成功 0：失敗

public int createBucket(String bucketName, int storageClass, int dataRedundancyType, int cannedACL){ // System.out.println(bucketName + " " + storageClass + " " + dataRedundancyType + " " + cannedACL);//1,參數列表：bucketName:桶名稱 storageClass:存儲類型// dataRedundancyType:數據容災類型// cannedACL:數據讀寫權限OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret); try{if(ossClient.doesBucketExist(bucketName)){System.out.println("您已創建Bucket:" + bucketName + "。");return 0;}else {System.out.println("您的Bucket不存在，創建Bucket:" + bucketName + "。"); CreateBucketRequest bucketRequest = new CreateBucketRequest(bucketName);switch (storageClass){case 1:bucketRequest.setStorageClass(StorageClass.Standard);break;case 2:bucketRequest.setStorageClass(StorageClass.IA);break;case 3:bucketRequest.setStorageClass(StorageClass.Archive);case 4:bucketRequest.setStorageClass(StorageClass.ColdArchive);}switch (dataRedundancyType){case 0:bucketRequest.setDataRedundancyType(DataRedundancyType.LRS);break;case 1:bucketRequest.setDataRedundancyType(DataRedundancyType.ZRS);break;}switch (cannedACL){case 1:bucketRequest.setCannedACL(CannedAccessControlList.Private);break;case 2:bucketRequest.setCannedACL(CannedAccessControlList.PublicRead);case 3:bucketRequest.setCannedACL(CannedAccessControlList.PublicReadWrite);}ossClient.createBucket(bucketRequest);}BucketInfo info = ossClient.getBucketInfo(bucketName);System.out.println("Bucket" + bucketName + "的信息如下： ");System.out.println("\t數據中心：" + info.getBucket().getLocation());System.out.println("\t創建時間: " + info.getBucket().getCreationDate());System.out.println("\t用戶標志：" + info.getBucket().getOwner()); } catch (OSSException oe){oe.printStackTrace();return 0; } catch (Exception e){e.printStackTrace();return 0; } finally{ossClient.shutdown(); }return 1;

}

3.列舉存儲空間
listAllBucket( ):
不需要參數，直接返回所有的Bucket
出參：List

public List<Bucket> listAllBuckets(){OSS ossClient = new OSSClientBuilder().build(endpoint,accessKeyId,accessKeySecret);List<Bucket> buckets = ossClient.listBuckets();for (Bucket bucket : buckets){System.out.println(" - " + bucket.getName());}ossClient.shutdown();return buckets;}

列舉有參數的存儲空間
listRequestBucket():
前綴（Prefix）：String，如果沒有，前端傳空字符串“”
起始 （Market）：String，列舉Marker之后的所有Bucket，若無，傳空字符串“”
最大值（maxKeys）：int, ，默認為100，如果不輸入，前端傳0
出參：List

//列舉有參數的Bucketpublic List<Bucket> listRequestBuckets(String Prefix, String Marker, int maxKeys) {//調用該方法需要三個參數中至少有一個不為空//Prefix代表列舉Bucket的前綴(如果沒有，前端傳空字符串)//Marker代表列舉的起始位置(如果沒有，前端傳空字符串)//maxKeys表示列舉空間的指定個數，默認值為100,如果傳過來0轉換成100OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);ListBucketsRequest listBucketsRequest = new ListBucketsRequest();try {if (!Prefix.isEmpty()) {listBucketsRequest.setPrefix(Prefix);}if (!Marker.isEmpty()) {listBucketsRequest.setMarker(Marker);}if (maxKeys == 0) {listBucketsRequest.setMaxKeys(100);} else if (maxKeys != 0) {listBucketsRequest.setMaxKeys(maxKeys);}} catch (OSSException oe) {return null;} catch (Exception e){return null;}BucketList bucketList = ossClient.listBuckets(listBucketsRequest);for(Bucket bucket : bucketList.getBucketList()){System.out.println(" - " + bucket.getName());}ossClient.shutdown();return bucketList.getBucketList();}

判斷bucket是否存在
輸入參數：bucketName
輸出參數：布爾值 ：存在 true
不存在 false

public boolean doesBucketExist(String bucketName){OSS ossClient = new OSSClientBuilder().build(endpoint,accessKeyId,accessKeySecret);boolean exists = ossClient.doesBucketExist(bucketName);System.out.println(exists);ossClient.shutdown();return exists;}

獲取地域信息
getBucketLocation(String bucketName)

public String getBucketLocation(String bucketName){//輸入參數：bucektNameOSS ossClient = new OSSClientBuilder().build(endpoint,accessKeyId,accessKeySecret);String location = ossClient.getBucketLocation(bucketName);System.out.println(location);return location;}

獲取存儲空間信息
getBucketInfo(String bucketName)

輸入參數：bucketName
輸出結果：一個map,包含信息：
存儲地域（Location）
創建日期 (CreationDate)
擁有者信息(Owner)
權限信息(Grants)
數據容災類型(DataRedundancyType)

//獲取存儲空間的信息public Map<String,String> getBucketInfo(String bucketName){//輸入參數：bucketName//返回值：包含地域、創建日期、擁有者信息、權限信息、容災類型的一個map集合OSS ossClient = new OSSClientBuilder().build(endpoint,accessKeyId,accessKeySecret);BucketInfo info = ossClient.getBucketInfo(bucketName);String location = info.getBucket().getLocation();String creationDate = info.getBucket().getCreationDate().toString();String owner = info.getBucket().getOwner().toString();String grants = info.getGrants().toString();String dataRedundancyType = info.getDataRedundancyType().toString();Map<String, String> map = new HashMap<>();map.put("Location", location);map.put("CreationDate", creationDate);map.put("Owner", owner);map.put("Grants", grants);map.put("DataRedundancyType", dataRedundancyType);ossClient.shutdown();return map;}

7.獲取存儲空間訪問權限

public String getBucketAcl(String bucketName){OSS ossClient = new OSSClientBuilder().build(endpoint,accessKeyId,accessKeySecret);AccessControlList bucketAcl = ossClient.getBucketAcl(bucketName);System.out.println(bucketAcl.toString());ossClient.shutdown();return bucketAcl.toString();}

8.設置存儲空間訪問權限

public String setBucketAcl(String bucketName, int acl){//輸入的acl只能是1 || 2 || 3OSS ossClient = new OSSClientBuilder().build(endpoint,accessKeyId,accessKeySecret);try{switch (acl){case 1:ossClient.setBucketAcl(bucketName,CannedAccessControlList.Private);break;case 2:ossClient.setBucketAcl(bucketName, CannedAccessControlList.PublicRead);break;case 3:ossClient.setBucketAcl(bucketName, CannedAccessControlList.PublicReadWrite);break;}} catch (OSSException e) {e.printStackTrace();return "false";} catch (ClientException e) {e.printStackTrace();return "false";}ossClient.shutdown();return "設置存儲空間訪問權限成功";}

9.刪除存儲空間

public String deleteBucket(String bucketName){OSS ossClient = new OSSClientBuilder().build(endpoint,accessKeyId,accessKeySecret);try {ossClient.deleteBucket(bucketName);} catch (OSSException e) {e.printStackTrace();return "false";} catch (ClientException e) {e.printStackTrace();return "false";}ossClient.shutdown();return "刪除存儲空間成功";}

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