阿里云 OSS 工具类

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import java.io.*;
import java.util.UUID;

/**
* 阿里云 OSS 工具类
*/

@Data
@Component
@ConfigurationProperties(prefix = "aliyun.oss")
public class AliOSSUtils {

private String endpoint;
private String accessKeyId ;
private String accessKeySecret ;
private String bucketName;

/**
* 实现上传图片到OSS
*/
public String upload(MultipartFile file) throws IOException {
//1 获取上传的文件的输入流
InputStream inputStream = file.getInputStream();

//2 获取原始文件名，使用UUID生成随机字符串，组装唯一文件名
String originalFilename = file.getOriginalFilename();
String fileName = UUID.randomUUID().toString() + originalFilename.substring(originalFilename.lastIndexOf("."));

//3 上传文件到 OSS
OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);
ossClient.putObject(bucketName, fileName, inputStream);

//4 获取文件访问路径
String url = endpoint.split("//")[0] + "//" + bucketName + "." + endpoint.split("//")[1] + "/" + fileName;
//5 关闭ossClient客户端，返回文件在OSS存储空间的地址
ossClient.shutdown();
return url;
}

}