Examples with COSClient com.qcloud.cos.COSClient used on opensource projects

Example 91 with COSClient

use of com.qcloud.cos.COSClient in project cos-java-sdk-v5 by tencentyun.

the class GetObjectURLDemo method getObjectUrl.

public static void getObjectUrl() {
    // getObjectUrl 不需要验证身份信息
    COSCredentials cred = new AnonymousCOSCredentials();
    // 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
    ClientConfig clientConfig = new ClientConfig(new Region("ap-guangzhou"));
    // 设置生成的 url 的协议名
    clientConfig.setHttpProtocol(HttpProtocol.https);
    // 生成cos客户端
    COSClient cosclient = new COSClient(cred, clientConfig);
    String key = "test/my_test中文.json";
    String bucketName = "mybucket-1251668577";
    System.out.println(cosclient.getObjectUrl(bucketName, key));
}

Example 92 with COSClient

use of com.qcloud.cos.COSClient in project cos-java-sdk-v5 by tencentyun.

the class ListObjectsDemo method listObjectsDemo.

public static void listObjectsDemo() {
    // 1 初始化用户身份信息(appid, secretId, secretKey)
    COSCredentials cred = new BasicCOSCredentials("AKIDXXXXXXXX", "1A2Z3YYYYYYYYYY");
    // 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
    ClientConfig clientConfig = new ClientConfig(new Region("ap-beijing-1"));
    // 3 生成cos客户端
    COSClient cosclient = new COSClient(cred, clientConfig);
    // bucket名称, 需包含appid
    String bucketName = "mybucket-1251668577";
    ListObjectsRequest listObjectsRequest = new ListObjectsRequest();
    // 设置bucket名称
    listObjectsRequest.setBucketName(bucketName);
    // prefix表示列出的object的key以prefix开始
    listObjectsRequest.setPrefix("");
    // 设置最大遍历出多少个对象, 一次listobject最大支持1000
    listObjectsRequest.setMaxKeys(1000);
    // listObjectsRequest.setDelimiter("/");
    ObjectListing objectListing = null;
    try {
        objectListing = cosclient.listObjects(listObjectsRequest);
    } catch (CosServiceException e) {
        e.printStackTrace();
    } catch (CosClientException e) {
        e.printStackTrace();
    }
    // common prefix表示表示被delimiter截断的路径, 如delimter设置为/, common prefix则表示所有子目录的路径
    List<String> commonPrefixs = objectListing.getCommonPrefixes();
    // object summary表示所有列出的object列表
    List<COSObjectSummary> cosObjectSummaries = objectListing.getObjectSummaries();
    for (COSObjectSummary cosObjectSummary : cosObjectSummaries) {
        // 文件的路径key
        String key = cosObjectSummary.getKey();
        // 文件的etag
        String etag = cosObjectSummary.getETag();
        // 文件的长度
        long fileSize = cosObjectSummary.getSize();
        // 文件的存储类型
        String storageClasses = cosObjectSummary.getStorageClass();
        System.out.println("key: " + key);
    }
    cosclient.shutdown();
}

Example 93 with COSClient

use of com.qcloud.cos.COSClient in project cos-java-sdk-v5 by tencentyun.

the class MultipartUploadDemo method completePartDemo.

// complete完成分片上传
public static void completePartDemo(String uploadId, List<PartETag> partETags) {
    // 1 初始化用户身份信息(secretId, secretKey)
    COSCredentials cred = new BasicCOSCredentials("AKIDXXXXXXXX", "1A2Z3YYYYYYYYYY");
    // 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
    ClientConfig clientConfig = new ClientConfig(new Region("ap-guangzhou"));
    // 3 生成cos客户端
    COSClient cosclient = new COSClient(cred, clientConfig);
    // bucket名需包含appid
    String bucketName = "mybucket-1251668577";
    String key = "aaa/bbb.txt";
    // uploadid(通过initiateMultipartUpload或者ListMultipartUploads获取)
    // 分片上传结束后，调用complete完成分片上传
    CompleteMultipartUploadRequest completeMultipartUploadRequest = new CompleteMultipartUploadRequest(bucketName, key, uploadId, partETags);
    try {
        CompleteMultipartUploadResult completeResult = cosclient.completeMultipartUpload(completeMultipartUploadRequest);
        String etag = completeResult.getETag();
        String crc64 = completeResult.getCrc64Ecma();
    } catch (CosServiceException e) {
        throw e;
    } catch (CosClientException e) {
        throw e;
    }
    cosclient.shutdown();
}

Example 94 with COSClient

use of com.qcloud.cos.COSClient in project cos-java-sdk-v5 by tencentyun.

the class MultipartUploadDemo method UploadPartDemo.

// 分块上传(上传某一个分片的数据)
public static List<PartETag> UploadPartDemo(String uploadId) {
    // 1 初始化用户身份信息(secretId, secretKey)
    COSCredentials cred = new BasicCOSCredentials("AKIDXXXXXXXX", "1A2Z3YYYYYYYYYY");
    // 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
    ClientConfig clientConfig = new ClientConfig(new Region("ap-guangzhou"));
    // 3 生成cos客户端
    COSClient cosclient = new COSClient(cred, clientConfig);
    // bucket名需包含appid
    String bucketName = "mybucket-1251668577";
    String key = "aaa/bbb.txt";
    // uploadid(通过initiateMultipartUpload或者ListMultipartUploads获取)
    boolean userTrafficLimit = false;
    List<PartETag> partETags = new LinkedList<>();
    // 生成要上传的数据, 这里初始化一个10M的数据
    for (int i = 0; i < 10; i++) {
        byte[] data = new byte[1024 * 1024];
        UploadPartRequest uploadPartRequest = new UploadPartRequest();
        uploadPartRequest.setBucketName(bucketName);
        uploadPartRequest.setKey(key);
        uploadPartRequest.setUploadId(uploadId);
        // 设置分块的数据来源输入流
        uploadPartRequest.setInputStream(new ByteArrayInputStream(data));
        // 设置分块的长度
        // 设置数据长度
        uploadPartRequest.setPartSize(data.length);
        // 假设要上传的part编号是10
        uploadPartRequest.setPartNumber(i + 1);
        if (userTrafficLimit) {
            uploadPartRequest.setTrafficLimit(8 * 1024 * 1024);
        }
        try {
            UploadPartResult uploadPartResult = cosclient.uploadPart(uploadPartRequest);
            PartETag partETag = uploadPartResult.getPartETag();
            partETags.add(partETag);
            String crc64 = uploadPartResult.getCrc64Ecma();
        } catch (CosServiceException e) {
            throw e;
        } catch (CosClientException e) {
            throw e;
        }
    }
    cosclient.shutdown();
    return partETags;
}

Example 95 with COSClient

use of com.qcloud.cos.COSClient in project cos-java-sdk-v5 by tencentyun.

the class AppendObjectDemo method AppendObjectFromLocal.

public static void AppendObjectFromLocal() {
    // 1 初始化用户身份信息(secretId, secretKey)
    COSCredentials cred = new BasicCOSCredentials("AKIDXXXXXXXX", "1A2Z3YYYYYYYYYY");
    // 2 设置bucket的区域, COS地域的简称请参照 https://www.qcloud.com/document/product/436/6224
    ClientConfig clientConfig = new ClientConfig(new Region("ap-guangzhou"));
    // 3 生成cos客户端
    COSClient cosclient = new COSClient(cred, clientConfig);
    // bucket名需包含appid
    String bucketName = "mybucket-1251668577";
    String key = "aaa/bbb.txt";
    try {
        File localFile = new File("1M.txt");
        AppendObjectRequest appendObjectRequest = new AppendObjectRequest(bucketName, key, localFile);
        appendObjectRequest.setPosition(0L);
        AppendObjectResult appendObjectResult = cosclient.appendObject(appendObjectRequest);
        long nextAppendPosition = appendObjectResult.getNextAppendPosition();
        System.out.println(nextAppendPosition);
        localFile = new File("2M.txt");
        appendObjectRequest = new AppendObjectRequest(bucketName, key, localFile);
        appendObjectRequest.setPosition(nextAppendPosition);
        appendObjectResult = cosclient.appendObject(appendObjectRequest);
        nextAppendPosition = appendObjectResult.getNextAppendPosition();
        System.out.println(nextAppendPosition);
    } catch (CosServiceException e) {
        e.printStackTrace();
    } catch (CosClientException e) {
        e.printStackTrace();
    }
    // 关闭客户端
    cosclient.shutdown();
}