com.aliyun.oss.model.OSSObject Java Examples

@Test
public void test() throws OSSException, ClientException, IOException {
    OSSClient client = new OSSClient("oss-cn-hangzhou.aliyuncs.com", "", "", "");
    // BucketInfo info = client.getBucketInfo("edrmry");
    boolean exists = client.doesBucketExist("edrmry");
    System.out.println(exists);
    // System.out.println(client.listBuckets().size());
    // client.createBucket("dzh1");
    PutObjectResult r = client.putObject("edrmry", "dzh1.jpg", new FileInputStream("/Users/dzh/Pictures/8.pic.jpg"));
    System.out.println(r.getETag());
    OSSObject o = client.getObject("edrmry", "dzh1");
    InputStream is = o.getObjectContent();

    FileOutputStream fos = new FileOutputStream("/Users/dzh/Pictures/8.pic.2.jpg");
    int len = 0;
    byte[] buf = new byte[32];
    while ((len = is.read(buf)) != -1) {
        fos.write(buf, 0, len);
    }
    fos.flush();
    fos.close();
}
 

/** 
 * 最后修改时间 
 * @param path  path
 * @return return
 */ 
public Date getLastModified(String path){ 
	if(null == path){ 
		path = ""; 
	} 
	if(path.startsWith("/")){ 
		path = path.substring(1); 
	} 
	try{ 
		path = path.replace("http://"+config.BUCKET+"."+config.ENDPOINT+"/", ""); 
		OSSObject obj = client.getObject(config.BUCKET, path); 
		if(null == obj){ 
			return null; 
		}else{ 
			return obj.getObjectMetadata().getLastModified(); 
		} 
	}catch(Exception e){ 
		return null; 
	} 
}
 

@GetMapping("/aliyun/download1")
public String download1() throws IOException {
    StringBuffer result = new StringBuffer();
    OSSObject ossObject = aliyunOssClient.getObject(OssConstant.ALIYUN_OSS_BUCKET_NAME, "text.txt");
    InputStream content = ossObject.getObjectContent();
    if (content != null) {
        BufferedReader reader = new BufferedReader(new InputStreamReader(content));
        while (true) {
            String line = reader.readLine();
            if (line == null) {
                break;
            }
            result.append("\n" + line);
        }
        content.close();
    }
    return result.toString();
}
 

@Override
public Blob getBlob(String container, String name, GetOptions options) {
    return doOssOperation(oss -> {
        GetObjectRequest req = toGetObjectRequest(container, name, options);
        OSSObject object = oss.getObject(req);
        return convertToBlob(object);
    }, false);

}
 

@Override
public Note get(String noteId, String notePath, AuthenticationInfo subject) throws IOException {
  OSSObject ossObject = ossClient.getObject(bucketName,
          rootFolder + "/" + buildNoteFileName(noteId, notePath));
  InputStream in = null;
  try {
    in = ossObject.getObjectContent();
    return Note.fromJson(IOUtils.toString(in));
  } finally {
    if (in != null) {
      in.close();
    }
  }
}
 

public ObjectOperation override(File file){
	Optional<OSSObject> opt = getOSSObject();
	if(!opt.isPresent()){
		throw new BaseException("key["+key+"] is not exists in bucket["+bucketName+"]");
	}
	return store(file);
}
 

public Optional<OSSObject> getOSSObject(){
	if(ossObject!=null){
		return ossObject;
	}
	if(!ossClient.doesObjectExist(bucketName, key)){
		ossObject = Optional.empty();
	}else{
		ossObject = Optional.ofNullable(ossClient.getObject(bucketName, key));
	}
	return ossObject;
}
 

@Override
public String getTextByPath(String path) {
	OSSObject ossObject = OSSUtil.getOSSClient().getObject(OSSUtil.bucketName, path);
	
	if(ossObject == null){
		return null;
	}else{
		try {
			return IOUtils.toString(ossObject.getObjectContent(), "UTF-8");
		} catch (IOException e) {
			e.printStackTrace();
			return null;
		}
	}
}
 

@Test
public void testGetBlob() throws Exception {
    OSSObject ossObject = new OSSObject();
    ossObject.setKey(FILENAME);
    ossObject.setObjectContent(new ByteArrayInputStream(PAYLOAD.getBytes()));
    Mockito.when(blobUtils.blobBuilder())
           .thenReturn(new BlobBuilderImpl());
    Mockito.when(ossClient.getObject(any(GetObjectRequest.class)))
           .thenReturn(ossObject);
    Blob blob = aliOSSBlobStore.getBlob(CONTAINER, FILENAME);
    String actualPayload = IOUtils.toString(blob.getPayload()
                                                .openStream(), StandardCharsets.UTF_8);
    assertEquals(PAYLOAD, actualPayload);
}
 

private Blob convertToBlob(OSSObject object) {
    BlobBuilder builder = blobBuilder(object.getKey()).payload(object.getObjectContent());
    Map<String, String> userMetadata = object.getObjectMetadata()
                                             .getUserMetadata();
    if (userMetadata != null) {
        builder.userMetadata(userMetadata);
    }
    return builder.build();
}
 

@Test
public void testUpload() {
    // 创建一个访问 OSS 的实例
    OSS client = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

    try {
        // 文件上传
        System.out.println("Uploading a new object to OSS from an input stream\n");
        String content = "Thank you for using Aliyun Object Storage Service";
        client.putObject(bucketName, key, new ByteArrayInputStream(content.getBytes()));

        System.out.println("Uploading a new object to OSS from a file\n");
        client.putObject(new PutObjectRequest(bucketName, key, createSampleFile()));

        // 文件下载
        System.out.println("Downloading an object");
        OSSObject object = client.getObject(new GetObjectRequest(bucketName, key));
        System.out.println("Content-Type: " + object.getObjectMetadata().getContentType());
        displayTextInputStream(object.getObjectContent());
    } 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());
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        client.shutdown();
    }
}
 

public OSSObject get(String path){ 
	if(null == path){ 
		path = ""; 
	} 
	if(path.startsWith("/")){ 
		path = path.substring(1); 
	} 
	try{ 
		path = path.replace("http://"+config.BUCKET+"."+config.ENDPOINT+"/", ""); 
		return client.getObject(config.BUCKET, path); 
	}catch(Exception e){ 
		return null; 
	} 
}
 

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 {
        
        /**
         * Note that there are two ways of uploading an object to your bucket, the one 
         * by specifying an input stream as content source, the other by specifying a file.
         */
        
        /*
         * Upload an object to your bucket from an input stream
         */
        System.out.println("Uploading a new object to OSS from an input stream\n");
        String content = "Thank you for using Aliyun Object Storage Service";
        client.putObject(bucketName, key, new ByteArrayInputStream(content.getBytes()));
        
        /*
         * Upload an object to your bucket from a file
         */
        System.out.println("Uploading a new object to OSS from a file\n");
        client.putObject(new PutObjectRequest(bucketName, key, createSampleFile()));
        
        /*
         * Download an object from your bucket
         */
        System.out.println("Downloading an object");
        OSSObject object = client.getObject(new GetObjectRequest(bucketName, key));
        System.out.println("Content-Type: "  + object.getObjectMetadata().getContentType());
        displayTextInputStream(object.getObjectContent());
        
    } 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();
    }
}
 

@Override
@SneakyThrows
public byte[] getBytes() {
    OSSObject ossObject = ossClient.getObject(bucketName, objectName);
    return StreamUtils.copyToByteArray(ossObject.getObjectContent());
}
 

@Override
public InputStream download(String relativePath) throws FileNotFoundException {
	OSSObject object = ossClient.getObject(bucketName, handleRelativePath(relativePath));
	return object.getObjectContent();
}
 

/**
 * 获取OSS Object输入流
 */
public InputStream readObject(String fileName, long streamId) {
	OSSObject ossObject = ossClient.getObject(bucketName, String.valueOf(streamId) + "/" + fileName);
	InputStream inputStream = ossObject.getObjectContent();
	return inputStream;
}
 

public static void main(String[] args) throws IOException {
	/*
	 * Constructs a client instance with your account for accessing OSS
	 */
	OSS client = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

	try {

		/**
		 * Note that there are two ways of uploading an object to your
		 * bucket, the one by specifying an input stream as content source,
		 * the other by specifying a file.
		 */

		/*
		 * Upload an object to your bucket from an input stream
		 */
		System.out.println("Uploading a new object to OSS from an input stream\n");
		String content = "Thank you for using Aliyun Object Storage Service";
		client.putObject(bucketName, key, new ByteArrayInputStream(content.getBytes()));

		/*
		 * Upload an object to your bucket from a file
		 */
		System.out.println("Uploading a new object to OSS from a file\n");
		client.putObject(new PutObjectRequest(bucketName, key, createSampleFile()));

		/*
		 * Download an object from your bucket
		 */
		System.out.println("Downloading an object");
		OSSObject object = client.getObject(new GetObjectRequest(bucketName, key));
		System.out.println("ObjectKey: " + object.getKey());
		System.out.println("ClientCRC: " + object.getClientCRC());
		System.out.println("ServerCRC: " + object.getServerCRC());
		System.out.println("Content-Type: " + object.getObjectMetadata().getContentType());
		displayTextInputStream(object.getObjectContent());

	} 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.getErrorMessage());
		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();
	}
}