阿里云oss使用教程

一，准备工作

1，点击：注册账号账号

输入用户名，密码，手机号

2，实名阿里云账号

点击跳到个人中心，对阿里云账号进行实名，这里我建议选择企业实名

3，购买阿里云OSS

打开OSS入口，选择：OSS资源包，地区：中国大陆，标准 - 本地冗余存储规格和购买时长。

二，阿里云oss简介

阿里云OSS

阿里云OSS是一款由阿里巴巴云计算有限公司开发的基于云端的对象存储服务。它为企业和个人存储海量数据提供了完美的解决方案，本文将详细介绍阿里云OSS的功能与优势。

1、阿里云OSS的功能

1.1. 高可靠性

阿里云OSS基于阿里云自研的分布式系统架构，能自动将数据复制到不同的存储节点，使其具备高可靠性。即使某个存储节点发生故障，阿里云OSS也能自动切换到其他存储节点，保证数据的完整性。

1.2. 数据保密性

阿里云OSS支持多种加密算法，能将用户数据进行加密存储，确保数据的保密性。同时，它还支持身份认证和权限控制功能，可以精确地控制用户对数据的访问权限。

1.3. 高扩展性

阿里云OSS具备高扩展性，用户可以根据自己的需求灵活地扩展存储容量和带宽。它采用了分布式架构和负载均衡技术，能够自动地进行数据水平扩展，保证了高并发负载下的系统稳定性。

1.4. 多种数据处理能力

阿里云OSS具备多种数据处理能力，支持图片、视频、音频等多种格式的数据，可以进行图片缩略图、音视频转码等操作，满足用户对数据的不同需求。

2、阿里云OSS的优势

2.1. 低成本

阿里云OSS的存储费用低廉，按用户实际使用量计费，无需预存款或定期付费，能够节省用户大量的成本。

2.2. 高性能

阿里云OSS的访问速度快，可以为用户提供高性能的服务。它支持全球加速，能够将数据缓存在全球各地，实现全球负载均衡，提升访问速度。

2.3. 易于使用

阿里云OSS的接口简单易用，用户可以轻松地进行数据上传、下载、删除等操作，它还提供了完善的开发工具包和SDK，方便用户快速进行开发和集成。

2.4. 可靠性高

阿里云OSS具备高可靠性，能够自动实现数据备份和容灾，系统故障自动转移，确保数据的安全和完整性。

总之，阿里云OSS作为云端对象存储服务，具备高可靠性、高性能、低成本和易于使用的特点，是企业和个人存储海量数据的最佳选择。

三，使用阿里云OSS控制台管理OSS

打开阿里云OSS控制台，点击：立即创建，然后创建想要的桶

1，上传文件到OSS

创建桶以后，就可以上传到OSS了。打开桶详情，点击上传：

选择：私有，点击：扫描文件，就可以上传文件了。

2，从OSS下载文件

点击到桶详情，看到文件，直接点击下载即可。

四，代码对接阿里云OSSAPI

首先创建AccessKey，具体如何创建，查看文档

1，使用API创建桶（以Java为例）

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.CannedAccessControlList;
import com.aliyun.oss.model.CreateBucketRequest;
import com.aliyun.oss.model.DataRedundancyType;
import com.aliyun.oss.model.StorageClass;public class Demo {public static void main(String[] args) throws Exception {// yourEndpoint填写Bucket所在地域对应的Endpoint。以华东1（杭州）为例，Endpoint填写为https://oss-cn-hangzhou.aliyuncs.com。String endpoint = "yourEndpoint";// 阿里云账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维，请登录RAM控制台创建RAM用户。String accessKeyId = "yourAccessKeyId";String accessKeySecret = "yourAccessKeySecret";// 填写Bucket名称。String bucketName = "examplebucket";// 填写资源组ID。如果不填写资源组ID，则创建的Bucket属于默认资源组。//String rsId = "rg-aek27tc****";// 创建OSSClient实例。OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);try {// 创建CreateBucketRequest对象。CreateBucketRequest createBucketRequest = new CreateBucketRequest(bucketName);// 如果创建存储空间的同时需要指定存储类型、存储空间的读写权限、数据容灾类型, 请参考如下代码。// 此处以设置存储空间的存储类型为标准存储为例介绍。//createBucketRequest.setStorageClass(StorageClass.Standard);// 数据容灾类型默认为本地冗余存储，即DataRedundancyType.LRS。如果需要设置数据容灾类型为同城冗余存储，请设置为DataRedundancyType.ZRS。//createBucketRequest.setDataRedundancyType(DataRedundancyType.ZRS);// 设置存储空间读写权限为公共读，默认为私有。//createBucketRequest.setCannedACL(CannedAccessControlList.PublicRead);// 在支持资源组的地域创建Bucket时，您可以为Bucket配置资源组。//createBucketRequest.setResourceGroupId(rsId);// 创建存储空间。ossClient.createBucket(createBucketRequest);} 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 {if (ossClient != null) {ossClient.shutdown();}}}
}

2，使用API删除桶（以Java为例）

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;public class Demo {public static void main(String[] args) throws Exception {// Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";// 阿里云账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维，请登录RAM控制台创建RAM用户。String accessKeyId = "yourAccessKeyId";String accessKeySecret = "yourAccessKeySecret";// 填写Bucket名称，例如examplebucket。String bucketName = "examplebucket";// 创建OSSClient实例。OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);try {// 删除存储空间。ossClient.deleteBucket(bucketName);} 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 {if (ossClient != null) {ossClient.shutdown();}}}
} 

3，使用API上传文件（以Java为例）

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.PutObjectRequest;
import com.aliyun.oss.model.PutObjectResult;
import java.io.ByteArrayInputStream;public class Demo {public static void main(String[] args) throws Exception {// Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";// 阿里云账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维，请登录RAM控制台创建RAM用户。String accessKeyId = "yourAccessKeyId";String accessKeySecret = "yourAccessKeySecret";// 填写Bucket名称，例如examplebucket。String bucketName = "examplebucket";// 填写Object完整路径，完整路径中不能包含Bucket名称，例如exampledir/exampleobject.txt。String objectName = "exampledir/exampleobject.txt";// 创建OSSClient实例。OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);try {// 填写字符串。String content = "Hello OSS，你好世界";// 创建PutObjectRequest对象。PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectName, new ByteArrayInputStream(content.getBytes()));// 如果需要上传时设置存储类型和访问权限，请参考以下示例代码。// ObjectMetadata metadata = new ObjectMetadata();// metadata.setHeader(OSSHeaders.OSS_STORAGE_CLASS, StorageClass.Standard.toString());// metadata.setObjectAcl(CannedAccessControlList.Private);// putObjectRequest.setMetadata(metadata);// 上传字符串。PutObjectResult result = ossClient.putObject(putObjectRequest);            } 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 {if (ossClient != null) {ossClient.shutdown();}}}
}   

4，使用API下载文件到本地（以Java为例）

package com.aliyun.oss.demo;import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;
import com.aliyun.oss.model.GetObjectRequest;
import java.io.File;public class Demo {public static void main(String[] args) throws Exception {// Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";// 阿里云账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维，请登录RAM控制台创建RAM用户。String accessKeyId = "yourAccessKeyId";String accessKeySecret = "yourAccessKeySecret";// 填写Bucket名称，例如examplebucket。String bucketName = "examplebucket";// 填写不包含Bucket名称在内的Object完整路径，例如testfolder/exampleobject.txt。String objectName = "testfolder/exampleobject.txt";String pathName = "D:\\localpath\\examplefile.txt";// 创建OSSClient实例。OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);try {// 下载Object到本地文件，并保存到指定的本地路径中。如果指定的本地文件存在会覆盖，不存在则新建。// 如果未指定本地路径，则下载后的文件默认保存到示例程序所属项目对应本地路径中。ossClient.getObject(new GetObjectRequest(bucketName, objectName), new File(pathName));} 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 {if (ossClient != null) {ossClient.shutdown();}}}
}   

5，使用API删除文件（以Java为例）

import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.OSSException;public class Demo {public static void main(String[] args) throws Exception {// Endpoint以华东1（杭州）为例，其它Region请按实际情况填写。String endpoint = "https://oss-cn-hangzhou.aliyuncs.com";// 阿里云账号AccessKey拥有所有API的访问权限，风险很高。强烈建议您创建并使用RAM用户进行API访问或日常运维，请登录RAM控制台创建RAM用户。String accessKeyId = "yourAccessKeyId";String accessKeySecret = "yourAccessKeySecret";// 填写Bucket名称，例如examplebucket。String bucketName = "examplebucket";// 填写文件完整路径。文件完整路径中不能包含Bucket名称。String objectName = "exampleobject.txt";// 创建OSSClient实例。OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);try {// 删除文件或目录。如果要删除目录，目录必须为空。ossClient.deleteObject(bucketName, objectName);} 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 {if (ossClient != null) {ossClient.shutdown();}}}
}            

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