2.3.2 入门
阿里云oss 对象存储服务的准备工作我们已经完成了,接下来我们就来完成第二步操作:参照官方所提供的sdk示例来编写入门程序。
首先我们需要来打开阿里云OSS的官方文档,在官方文档中找到 SDK 的示例代码:
参照官方提供的SDK,改造一下,即可实现文件上传功能:
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.FileInputStream; import java.io.InputStream; public class AliOssTest { 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 = "oss-cn-shanghai.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 = "LTAI5t9MZK8iq5T2Av5GLDxX"; String accessKeySecret = "C0IrHzKZGKqU8S7YQcevcotD3Zd5Tc"; // 填写Bucket名称,例如examplebucket。 String bucketName = "web-framework01"; // 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 = "1.jpg"; // 填写本地文件的完整路径,例如D:\\localpath\\examplefile.txt。 // 如果未指定本地路径,则默认从示例程序所属项目对应本地路径中上传文件流。 String filePath= "C:\\Users\\Administrator\\Pictures\\1.jpg"; // 创建OSSClient实例。 OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret); try { InputStream inputStream = new FileInputStream(filePath); // 创建PutObjectRequest对象。 PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectName, inputStream); // 设置该属性可以返回response。如果不设置,则返回的response为空。 putObjectRequest.setProcess("true"); // 创建PutObject请求。 PutObjectResult result = ossClient.putObject(putObjectRequest); // 如果上传成功,则返回200。 System.out.println(result.getResponse().getStatusCode()); } 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(); } } } }
在以上代码中,需要替换的内容为:
- accessKeyId:阿里云账号AccessKey
- accessKeySecret:阿里云账号AccessKey对应的秘钥
- bucketName:Bucket名称
- objectName:对象名称,在Bucket中存储的对象的名称
- filePath:文件路径
AccessKey :
运行以上程序后,会把本地的文件上传到阿里云OSS服务器上: