SpringBoot 3.3.1 + Minio 实现极速上传和预览模式

import io.minio.MinioClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
 
@Service
public class MinioService {
 
    @Autowired
    private MinioClient minioClient;
 
    @Value("${minio.bucket-name}")
    private String bucketName;
 
    public void uploadFile(String fileName, byte[] data) throws IOException, NoSuchAlgorithmException, InvalidKeyException {
        boolean isExist = minioClient.bucketExists(bucketName);
        if (!isExist) {
            minioClient.makeBucket(bucketName);
        }
        minioClient.putObject(bucketName, fileName, data, null);
    }
 
    public void downloadFile(String fileName, String downloadFileName) throws IOException, NoSuchAlgorithmException, InvalidKeyException {
        minioClient.downloadObject(bucketName, fileName, downloadFileName);
    }
 
    public String getPresignedObjectUrl(String fileName) throws IOException, NoSuchAlgorithmException, InvalidKeyException {
        return minioClient.getPresignedObjectUrl(bucketName, fileName);
    }
}

这段代码提供了一个简单的MinIO服务类，用于处理文件的上传、下载和获取预签名URL。它展示了如何使用Spring Boot和MinIO客户端库来与MinIO服务器交互。