1public void copyObject(BosClient client, String srcBucketName, String srcKey, String destBucketName, String destKey) {
2    
3    // 拷贝Object
4    CopyObjectResponse copyObjectResponse = client.copyObject(srcBucketName, srcKey, destBucketName, destKey);
5    
6    // 打印结果
7    System.out.println("ETag: " + copyObjectResponse.getETag() + " LastModified: " + copyObjectResponse.getLastModified());
8}

1// 初始化BosClient
2BosClient client = ...;
3    
4// 创建CopyObjectRequest对象
5CopyObjectRequest copyObjectRequest = new CopyObjectRequest(srcBucketName, srcKey, destBucketName, destKey);
6    
7// 设置新的Metadata
8Map<String, String> userMetadata = new HashMap<String, String>();
9userMetadata.put('<user-meta-key>','<user-meta-value>');
10ObjectMetadata meta = new ObjectMetadata();
11meta.setUserMetadata(userMetadata);
12copyObjectRequest.setNewObjectMetadata(meta);
13    
14// 复制Object
15CopyObjectResponse copyObjectResponse = client.copyObject(copyObjectRequest);
16    
17System.out.println("ETag: " + copyObjectResponse.getETag() + " LastModified: " + copyObjectResponse.getLastModified());

1// 初始化BosClient
2BosClient client = ...;
3
4// 创建CopyObjectRequest对象
5CopyObjectRequest copyObjectRequest = new CopyObjectRequest(srcBucketName, srcKey, destBucketName, destKey);
6
7// 设置新的Metadata
8Map<String, String> userMetadata = new HashMap<String, String>();
9userMetadata.put("<user-meta-key>","<user-meta-value>");
10        
11meta.setUserMetadata(userMetadata);
12copyObjectRequest.setNewObjectMetadata(meta);
13
14//copy-source-if-match
15copyObjectRequest.withETag("111111111183bf192b57a4afc76fa632");
16//copy-source-if-none-match
17copyObjectRequest.withNoMatchingETagConstraint("111111111183bf192b57a4afc76fa632");
18        
19Date modifiedSinceConstraint = new Date();    
20SimpleDateFormat df = new SimpleDateFormat("E, dd MMM yyyy HH:mm:ss z", Locale.UK);  
21df.setTimeZone(new java.util.SimpleTimeZone(0, "GMT"));        
22String date = df.format(modifiedSinceConstraint);
23
24//copy-source-if-modified-since
25copyObjectRequest.withModifiedSinceConstraint(date);
26
27//copy-source-if-unmodified-since
28copyObjectRequest.withUnmodifiedSinceConstraint(date);
29
30// 复制Object
31CopyObjectResponse copyObjectResponse = client.copyObject(copyObjectRequest);
32
33System.out.println("ETag: " + copyObjectResponse.getETag() + " LastModified: " + copyObjectResponse.getLastModified());

1// 第一步 init
2InitiateMultipartUploadRequest initiateMultipartUploadRequest =
3        new InitiateMultipartUploadRequest("targetBucketName","targetObjectName");
4InitiateMultipartUploadResponse initiateMultipartUploadResponse =
5        client.initiateMultipartUpload(initiateMultipartUploadRequest);
6
7// 第二步 分块拷贝
8long left_size=client.getObjectMetadata("sourceBucketName","sourceObjectName").getContentLength();
9long skipBytes = 0;
10int partNumber = 1;
11List<PartETag> partETags = new ArrayList<PartETag>();
12
13while (left_size > 0) {
14    long partSize = 1024 * 1024 * 1L;
15    if (left_size < partSize) {
16        partSize = left_size;
17    }
18    UploadPartCopyRequest uploadPartCopyRequest = new UploadPartCopyRequest();
19    uploadPartCopyRequest.setBucketName("targetBucketName");
20    uploadPartCopyRequest.setKey("targetObjectName");
21    uploadPartCopyRequest.setSourceBucketName("sourceBucketName");
22    uploadPartCopyRequest.setSourceKey("sourceObjectName");
23    uploadPartCopyRequest.setUploadId(initiateMultipartUploadResponse.getUploadId());
24    uploadPartCopyRequest.setPartSize(partSize);
25    uploadPartCopyRequest.setOffSet(skipBytes);
26    uploadPartCopyRequest.setPartNumber(partNumber);
27    UploadPartCopyResponse uploadPartCopyResponse = client.uploadPartCopy(uploadPartCopyRequest);
28    // 将返回的PartETag保存到List中
29    PartETag partETag = new PartETag(partNumber,uploadPartCopyResponse.getETag());
30    partETags.add(partETag);
31    left_size -= partSize;
32    skipBytes += partSize;
33    partNumber+=1;
34}
35
36// 第三步 complete
37CompleteMultipartUploadRequest completeMultipartUploadRequest =
38        new CompleteMultipartUploadRequest("targetBucketName", "targetObjectName", initiateMultipartUploadResponse.getUploadId(), partETags);
39CompleteMultipartUploadResponse completeMultipartUploadResponse =
40        client.completeMultipartUpload(completeMultipartUploadRequest);