单链接限速

// 初始化用户身份信息(secretId, secretKey)
// SECRETID 和 SECRETKEY 请登录访问管理控制台 https://console.cloud.tencent.com/cam/capi 进行查看和管理
String secretId = System.getenv("secretId");//用户的 SecretId，建议使用子账号密钥，授权遵循最小权限指引，降低使用风险。子账号密钥获取可参见 https://cloud.tencent.com/document/product/598/37140
String secretKey = System.getenv("secretKey");//用户的 SecretKey，建议使用子账号密钥，授权遵循最小权限指引，降低使用风险。子账号密钥获取可参见 https://cloud.tencent.com/document/product/598/37140
COSCredentials cred = new BasicCOSCredentials(secretId, secretKey);
// 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"));
// 生成cos客户端
COSClient cosClient = new COSClient(cred, clientConfig);

String bucketName = "mybucket-12500000000";
String key = "abc/def.txt";
// 这里创建一个 ByteArrayInputStream 来作为示例，实际中这里应该是您要上传的 InputStream 类型的流
int inputStreamLength = 1024 * 1024;
byte data[] = new byte[inputStreamLength];
InputStream inputStream = new ByteArrayInputStream(data);

ObjectMetadata objectMetadata = new ObjectMetadata();
// 上传的流如果能够获取准确的流长度，则推荐一定填写 content-length
// 如果确实没办法获取到，则下面这行可以省略，但同时高级接口也没办法使用分块上传了
objectMetadata.setContentLength(inputStreamLength);

PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, inputStream, objectMetadata);
// 设置单链接限速（如有需要），不需要可忽略
putObjectRequest.setTrafficLimit(8*1024*1024);
try {
    PutObjectResult putObjectResult = cosClient.putObject(putObjectRequest);
    System.out.println(putObjectResult.getRequestId());
} catch (CosServiceException e) {
    e.printStackTrace();
} catch (CosClientException e) {
    e.printStackTrace();
} finally {
    cosClient.shutdown();
}

// 初始化用户身份信息(secretId, secretKey)
// SECRETID 和 SECRETKEY 请登录访问管理控制台 https://console.cloud.tencent.com/cam/capi 进行查看和管理
String secretId = System.getenv("secretId");//用户的 SecretId，建议使用子账号密钥，授权遵循最小权限指引，降低使用风险。子账号密钥获取可参见 https://cloud.tencent.com/document/product/598/37140
String secretKey = System.getenv("secretKey");//用户的 SecretKey，建议使用子账号密钥，授权遵循最小权限指引，降低使用风险。子账号密钥获取可参见 https://cloud.tencent.com/document/product/598/37140
COSCredentials cred = new BasicCOSCredentials(secretId, secretKey);
// 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"));
// 生成cos客户端
COSClient cosClient = new COSClient(cred, clientConfig);

String key = "test/my_test.json";
String bucketName = "mybucket-12500000000";
GetObjectRequest getObjectRequest = new GetObjectRequest(bucketName, key);
// 设置下载的单链接限速（如有需要），不需要可忽略
getObjectRequest.setTrafficLimit(8*1024*1024);

try {
    File localFile = new File("my_test.json");
    ObjectMetadata objectMetadata = cosClient.getObject(getObjectRequest, localFile);
    System.out.println(objectMetadata.getContentLength());
} catch (CosServiceException cse) {
    cse.printStackTrace();
} catch (CosClientException cce) {
    cce.printStackTrace();
} finally {
    cosClient.shutdown();
}