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一.文件上传
我们在OSS页面中找到SDK下载,点击SDK示例,找到帮助文档。
点击JAVA并安装
在安装SDK中找到在Maven项目中加入依赖项(推荐方式)
将其中的依赖复制到pom文件中去。
<dependency><groupId>com.aliyun.oss</groupId><artifactId>aliyun-sdk-oss</artifactId><version>3.17.4</version>
</dependency>
如果JDK版本是1.9以上,下面的也要复制到pom文件当中去。
<dependency><groupId>javax.xml.bind</groupId><artifactId>jaxb-api</artifactId><version>2.3.1</version>
</dependency>
<dependency><groupId>javax.activation</groupId><artifactId>activation</artifactId><version>1.1.1</version>
</dependency>
<!-- no more than 2.3.3-->
<dependency><groupId>org.glassfish.jaxb</groupId><artifactId>jaxb-runtime</artifactId><version>2.3.3</version>
</dependency>
引入后继续找到后续参考中的“对象/文件”
点击上传文件
选择简单上传
找到其中的上传文件流
import com.aliyun.oss.ClientException;
import com.aliyun.oss.OSS;
import com.aliyun.oss.common.auth.*;
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 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";// 从环境变量中获取访问凭证。运行本代码示例之前,请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();// 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";// 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= "D:\\localpath\\examplefile.txt";// 填写Bucket所在地域。以华东1(杭州)为例,Region填写为cn-hangzhou。String region = "cn-hangzhou";// 创建OSSClient实例。ClientBuilderConfiguration clientBuilderConfiguration = new ClientBuilderConfiguration();clientBuilderConfiguration.setSignatureVersion(SignVersion.V4); OSS ossClient = OSSClientBuilder.create().endpoint(endpoint).credentialsProvider(credentialsProvider).clientConfiguration(clientBuilderConfiguration).region(region) .build();try {InputStream inputStream = new FileInputStream(filePath);// 创建PutObjectRequest对象。PutObjectRequest putObjectRequest = new PutObjectRequest(bucketName, objectName, inputStream);// 创建PutObject请求。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();}}}
}
// 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";
// 从环境变量中获取访问凭证。运行本代码示例之前,请确保已设置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。
EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();
// 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";
// 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= "D:\\localpath\\examplefile.txt";
// 填写Bucket所在地域。以华东1(杭州)为例,Region填写为cn-hangzhou。
String region = "cn-hangzhou";
endpoint:填写OSS对象存储服务的url。
bucketName:所有的数据都存储在bucket(存储空间)中,因此要指定bucketName
objectName:指定要上传的文件在bucket中的名字是什么
filePath:指定要将本地的哪一个文件上传到bucket中
将以上参数改成自己的就行,核心代码不用动。
endpoint在这里找:
二.上传测试
当我们在test测试用例中运行了上面的上传代码后,我们检查测试是否通过: