springboot上传oss文件流

Spring Boot 中上传文件到阿里云OSS (Object Storage Service) 的流程通常包括以下几个步骤：

1. 配置依赖：首先，在你的`pom.xml`中添加 Alibaba Cloud SDK 的依赖，比如 `spring-cloud-starter-alibaba-nacos-discovery` 和 `aliyun-sdk-core`。

<dependency>
    <groupId>com.alibaba.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>
<dependency>
    <groupId>com.aliyun.oss</groupId>
    <artifactId>aliyun-oss</artifactId>
</dependency>

2. 实现上传服务：创建一个 Spring Bean，例如 `OssService`，用于处理上传操作。这个类通常会包含一个构造函数接收OSS客户端实例，并封装 OSS 文件上传的方法。

import com.aliyuncs.IAcsClient;
import com.aliyuncs.OSSClientBuilder;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.exceptions.ServerException;

public class OssService {
    private final IAcsClient ossClient;

    public OssService(String endpoint, String accessKeyId, String accessKeySecret, String bucketName) {
        this.ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
    }

    public void uploadFileToOSS(InputStream inputStream, String objectKey) throws ClientException, ServerException {
        ossClient.putObject(bucketName, objectKey, inputStream);
        ossClient.shutdown();
    }
}

3. 调用上传方法：在需要上传文件的地方，你可以注入 `OssService` 并调用 `uploadFileToOSS` 方法，传入文件流和对象键（objectKey）。

@Autowired
private OssService ossService;

public void uploadFileToOSS(File file, String fileName) {
    try (InputStream inputStream = new FileInputStream(file)) {
        ossService.uploadFileToOSS(inputStream, fileName);
    } catch (IOException e) {
        log.error("Failed to upload file", e);
    }
}