腾讯云对象存储自定义域名上传下载对象

简介

本文主要介绍如何使用自定义域名上传和下载对象，本文示例中使用了上传和下载对象的高级接口，接口详细信息可参见 Java SDK 上传对象 和 Java SDK 下载对象。在使用自定义域名上传和下载对象之前，首先需要为存储桶设置自定义源站域名，详情请参见 开启自定义源站域名 的方式来设置自定义源站域名。

通过自定义域名上传对象

方法原型

// UserSpecifiedEndpointBuilder 构造函数com.qcloud.cos.endpoint.UserSpecifiedEndpointBuilder(String generalApiEndpoint, String getServiceApiEndpoint);

请求示例

import java.io.File;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import com.qcloud.cos.COSClient;import com.qcloud.cos.ClientConfig;import com.qcloud.cos.auth.BasicCOSCredentials;import com.qcloud.cos.auth.COSCredentials;import com.qcloud.cos.endpoint.UserSpecifiedEndpointBuilder;import com.qcloud.cos.exception.CosClientException;import com.qcloud.cos.exception.CosServiceException;import com.qcloud.cos.http.HttpProtocol;import com.qcloud.cos.model.PutObjectRequest;import com.qcloud.cos.model.UploadResult;import com.qcloud.cos.region.Region;import com.qcloud.cos.transfer.TransferManager;import com.qcloud.cos.transfer.Upload;
public static void uploadFile() { // 1 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); // 2 设置 bucket 的地域, COS_REGION 请参见 https://www.qcloud.com/document/product/436/6224    ClientConfig clientConfig = new ClientConfig(new Region("COS_REGION")); // 设置请求协议，推荐使用 https 协议    clientConfig.setHttpProtocol(HttpProtocol.https);    //若设置自定义源站域名时未上传 https 证书，则改为 clientConfig.setHttpProtocol(HttpProtocol.http); // 设置自定义的域名    UserSpecifiedEndpointBuilder endpointBuilder = new UserSpecifiedEndpointBuilder("generalApiEndpoint", "getServiceApiEndpoint");    clientConfig.setEndpointBuilder(endpointBuilder); // 3 生成 cos 客户端    COSClient cosclient = new COSClient(cred, clientConfig); // bucket 名需包含 appid    String bucketName = "BucketName-APPID";
    ExecutorService threadPool = Executors.newFixedThreadPool(32); // 传入一个 threadpool, 若不传入线程池, 默认 TransferManager 中会生成一个单线程的线程池。    TransferManager transferManager = new TransferManager(cosclient, threadPool); // 设置对象的 key    String key = "exampleobject"; // 本地文件路径      File localFile = new File("/path/to/localFile");
    PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, key, localFile);    try {      // 返回一个异步结果 Upload , 可同步的调用 waitForUploadResult 等待 upload 结束, 成功返回 UploadResult , 失败抛出异常.        Upload upload = transferManager.upload(putObjectRequest);        UploadResult uploadResult = upload.waitForUploadResult();        System.out.printf("RequestId : %s\n",uploadResult.getRequestId());        System.out.println(uploadResult.getETag());        System.out.println(uploadResult.getCrc64Ecma());    } catch (CosServiceException e) {        e.printStackTrace();    } catch (CosClientException e) {        e.printStackTrace();    } catch (InterruptedException e) {        e.printStackTrace();    }
      transferManager.shutdownNow();}

参数说明

通过自定义域名下载对象

方法原型

// UserSpecifiedEndpointBuilder 构造函数com.qcloud.cos.endpoint.UserSpecifiedEndpointBuilder(String generalApiEndpoint, String getServiceApiEndpoint);

请求示例

import java.io.File;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import com.qcloud.cos.COSClient;import com.qcloud.cos.ClientConfig;import com.qcloud.cos.auth.BasicCOSCredentials;import com.qcloud.cos.auth.COSCredentials;import com.qcloud.cos.endpoint.UserSpecifiedEndpointBuilder;import com.qcloud.cos.exception.CosClientException;import com.qcloud.cos.exception.CosServiceException;import com.qcloud.cos.http.HttpProtocol;import com.qcloud.cos.model.GetObjectRequest;import com.qcloud.cos.region.Region;import com.qcloud.cos.transfer.Download;import com.qcloud.cos.transfer.TransferManager;
public static void downLoadFile() { // 1 初始化用户身份信息(secretId, secretKey)    COSCredentials cred = new BasicCOSCredentials("secretId", "secretKey"); // 2 设置 bucket 的地域, COS_REGION 请参见 https://www.qcloud.com/document/product/436/6224    ClientConfig clientConfig = new ClientConfig(new Region("COS_REGION")); // 设置请求协议，推荐使用 https 协议    clientConfig.setHttpProtocol(HttpProtocol.https);    //若设置自定义源站域名时未上传 https 证书，则改为 clientConfig.setHttpProtocol(HttpProtocol.http); // 设置自定义的域名    UserSpecifiedEndpointBuilder endpointBuilder = new UserSpecifiedEndpointBuilder("generalApiEndpoint", "getServiceApiEndpoint");    clientConfig.setEndpointBuilder(endpointBuilder); // 3 生成 cos 客户端    COSClient cosclient = new COSClient(cred, clientConfig); // bucket 名需包含 appid    String bucketName = "BucketName-APPID";
    ExecutorService threadPool = Executors.newFixedThreadPool(32); // 传入一个 threadpool, 若不传入线程池, 默认 TransferManager 中会生成一个单线程的线程池。    TransferManager transferManager = new TransferManager(cosclient, threadPool); // 设置对象的 key    String key = "exampleobject"; // 本地文件路径          File downloadFile = new File("/path/to/localFile");    GetObjectRequest getObjectRequest = new GetObjectRequest(bucketName, key);    try {      // 返回一个异步结果 download, 可同步的调用 waitForCompletion 等待 download 结束, 成功返回 void , 失败抛出异常.        Download download = transferManager.download(getObjectRequest, downloadFile);        download.waitForCompletion();        System.out.printf("RequestId : %s\n",download.getObjectMetadata().getRequestId());    } catch (CosServiceException e) {        e.printStackTrace();    } catch (CosClientException e) {        e.printStackTrace();    } catch (InterruptedException e) {        e.printStackTrace();    }
    transferManager.shutdownNow();}

参数说明



对象存储官网1折活动，限时活动，即将结束，速速收藏
同尘科技为腾讯云授权服务中心。
购买腾讯云产品享受折上折，更有现金返利。同意关联立享优惠