阿里云OSS文件上传不配置环境变量使用显式AccessKey验证

问题背景

在中阿里云官方文档中介绍文件上传时，推荐配置环境变量OSS_ACCESS_KEY_ID和OSS_ACCESS_KEY_SECRET。这里用简单的方法，直接在Demo.java中显式指定accessKeyId和accessKeySecret，同时修改OSSClientBuilder()的入参。

解决方法

首先去创建AccessKey。记住AccessKey ID和AccessKey Secret。
在这里插入图片描述

这是官方给出的上传文件流的实例代码Demo.java：

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";// 创建OSSClient实例。OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);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();}}}
}

修改一：

	// EnvironmentVariableCredentialsProvider credentialsProvider = CredentialsProviderFactory.newEnvironmentVariableCredentialsProvider();  String accessKeyId = "xxxxxx; // 你的AccessKey IDString accessKeySecret = "xxxxxx"; // 你的AccessKey Secret

修改二：

// OSS ossClient = new OSSClientBuilder().build(endpoint, credentialsProvider);
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);