public static void main(String[] args) throws IOException {
OSSClient client = new OSSClient(endpoint, accessKeyId, accessKeySecret);
try {
// createBuket("create-by-code", client);
// UploadMethod.sendStr("create-by-code", "Hello OSS!", client);
// UploadMethod.uploadFile("create-by-code", new File("c:/hello oss.txt"),
// client);
// UploadMethod.uploadFileProgress(bucketName, new File(
// "E:/MOVE/Videos/神探夏洛克-恐怖的新娘/Sherlock Abominable Bride 2015 720p.mkv"),
// client);
// UploadMethod.createDir(bucketName, "新建文件夹", client);
// UploadMethod.createDir(bucketName, "新建文件夹/a", client);
// UploadMethod.uploadFile(bucketName, new File("c:/test.txt"),
// "新建文件夹/a/", client);
// DownloadMethod.readContent(bucketName, "Hello OSS!", client);
// DownloadMethod.downloadFile(bucketName, client, "新建文件夹/a/test.txt");
// OpratorMethod.listBucket(client);
OpratorMethod.listObj(bucketName, client);
} catch (Exception e) {
System.err.println(e);
} finally {
client.shutdown();
}
}
public static void main(String[] args) {
OSSClient client = new OSSClient(OSS_ENDPOINT, ACCESS_ID, ACCESS_KEY);
String bucketName = OSSConfig.BUCKET_NAME;
try {
String location = client.getBucketLocation(bucketName);
System.out.println(location);
} catch (OSSException e) {
e.printStackTrace();
}
}
/** * 下载文件 * * @author [email protected] * @param fileId * @return * @throws IOException */ public FileInfo download(String fileId) throws IOException { logger.debug("download file from OSS--start"); if (fileId == null || fileId.equals("")) { throw new IllegalArgumentException("fileId不能为null或者空字符串"); } OSSClient client = this.getOSSClient(); OSSObject ossObject = client.getObject(bucketName, fileId); FileInfo fileInfo = new FileInfo(); InputStream is = ossObject.getObjectContent(); byte[] content = IOUtils.readStreamAsByteArray(is); checkContent(content); ObjectMetadata objectMetadata = ossObject.getObjectMetadata(); String fileName = objectMetadata.getUserMetadata().get("filename"); fileInfo.setFileContent(content); fileInfo.setFileName(fileName); logger.debug("download file from OSS--end"); return fileInfo; }
public static void readContent(String bucketName, String key, OSSClient client)
throws IOException {
BufferedReader br = null;
try {
OSSObject objec = client.getObject(bucketName, key);
br = new BufferedReader(new InputStreamReader(objec.getObjectContent()));
String line = br.readLine();
while (line != null) {
System.out.println(line);
line = br.readLine();
}
System.out.println("读完啦！");
} catch (Exception e) {
System.err.println(e);
} finally {
br.close();
}
}
public static void main(String[] args) throws IOException {
/*
* Constructs a client instance with your account for accessing OSS
*/
OSSClient client = new OSSClient(endpoint, accessKeyId, accessKeySecret);
try {
/*
* Append an object from specfied input stream, keep in mind that
* position should be set to zero at first time.
*/
String content = "Thank you for using Aliyun Object Storage Service";
InputStream instream = new ByteArrayInputStream(content.getBytes());
Long firstPosition = 0L;
System.out.println("Begin to append object at position(" + firstPosition + ")");
AppendObjectResult appendObjectResult =
client.appendObject(new AppendObjectRequest(bucketName, key, instream).withPosition(0L));
System.out.println(
"\tNext position="
+ appendObjectResult.getNextPosition()
+ ", CRC64="
+ appendObjectResult.getObjectCRC()
+ "\n");
/*
* Continue to append the object from specfied file descriptor at last position
*/
Long nextPosition = appendObjectResult.getNextPosition();
System.out.println("Continue to append object at last position(" + nextPosition + "):");
appendObjectResult =
client.appendObject(
new AppendObjectRequest(bucketName, key, createTempFile())
.withPosition(nextPosition));
System.out.println(
"\tNext position="
+ appendObjectResult.getNextPosition()
+ ", CRC64="
+ appendObjectResult.getObjectCRC());
/*
* View object type of the appendable object
*/
OSSObject object = client.getObject(bucketName, key);
System.out.println("\tObject type=" + object.getObjectMetadata().getObjectType() + "\n");
// Do not forget to close object input stream if not use it any more
object.getObjectContent().close();
/*
* Delete the appendable object
*/
System.out.println("Deleting an appendable object");
client.deleteObject(bucketName, key);
} catch (OSSException oe) {
System.out.println(
"Caught an OSSException, which means your request made it to OSS, "
+ "but was rejected with an error response for some reason.");
System.out.println("Error Message: " + oe.getErrorCode());
System.out.println("Error Code: " + oe.getErrorCode());
System.out.println("Request ID: " + oe.getRequestId());
System.out.println("Host ID: " + oe.getHostId());
} catch (ClientException ce) {
System.out.println(
"Caught an ClientException, which means the client encountered "
+ "a serious internal problem while trying to communicate with OSS, "
+ "such as not being able to access the network.");
System.out.println("Error Message: " + ce.getMessage());
} finally {
/*
* Do not forget to shut down the client finally to release all allocated resources.
*/
client.shutdown();
}
}
/** * 上传文件 * * @author [email protected] * @param filename：文件名称 * @param content：文件的内容，用字节数组存储 * @return 文件在OSS中的唯一标识，即fileId */ public String upload(String filename, byte[] content) { logger.debug("upload file to OSS--start"); if (content == null || content.length == 0) { throw new IllegalArgumentException("文件内容不能为空"); } OSSClient client = this.getOSSClient(); String key = UUIDUtils.getUUID(); ObjectMetadata meta = new ObjectMetadata(); Map<String, String> userMetadata = new HashMap<String, String>(); if (filename == null || filename.equals("")) { filename = key; } logger.debug("filename:" + filename); userMetadata.put("filename", filename); meta.setUserMetadata(userMetadata); // 开始Multipart Upload InitiateMultipartUploadRequest initiateMultipartUploadRequest = new InitiateMultipartUploadRequest(bucketName, key, meta); InitiateMultipartUploadResult initiateMultipartUploadResult = client.initiateMultipartUpload(initiateMultipartUploadRequest); logger.debug("UploadId: " + initiateMultipartUploadResult.getUploadId()); // 设置每块为 5M final int partSize = 1024 * 1024 * 5; // 计算分块数目 int partCount = (int) (content.length / partSize); if (content.length % partSize != 0) { partCount++; } // 新建一个List保存每个分块上传后的ETag和PartNumber List<PartETag> partETags = new ArrayList<PartETag>(); for (int i = 0; i < partCount; i++) { InputStream partIs = new ByteArrayInputStream(content); // 计算每个分块的大小 int size = partSize < content.length - i * partSize ? partSize : content.length - i * partSize; byte[] copy = new byte[size]; System.arraycopy(content, partSize * i, copy, 0, size); // 创建UploadPartRequest，上传分块 UploadPartRequest uploadPartRequest = new UploadPartRequest(); uploadPartRequest.setBucketName(bucketName); uploadPartRequest.setKey(key); uploadPartRequest.setUploadId(initiateMultipartUploadResult.getUploadId()); uploadPartRequest.setInputStream(partIs); uploadPartRequest.setPartSize(size); uploadPartRequest.setPartNumber(i + 1); UploadPartResult uploadPartResult = client.uploadPart(uploadPartRequest); // 将返回的PartETag保存到List中 partETags.add(uploadPartResult.getPartETag()); } CompleteMultipartUploadRequest completeMultipartUploadRequest = new CompleteMultipartUploadRequest( bucketName, key, initiateMultipartUploadResult.getUploadId(), partETags); // 完成分块上传 CompleteMultipartUploadResult completeMultipartUploadResult = client.completeMultipartUpload(completeMultipartUploadRequest); logger.debug("ETag:" + completeMultipartUploadResult.getETag()); logger.debug("文件的key：" + key); logger.debug("upload file to OSS--end"); return key; }
public static void downloadFile(String bucketName, OSSClient client, String key) {
GetObjectRequest request = new GetObjectRequest(bucketName, key);
client.getObject(request, new File("c:/test_down.txt"));
}