Spring Boot 工程集成 minio 对象存储

<properties>
    <minio.version>4.0.0</minio.version>
</properties>
<dependency>
    <groupId>io.minio</groupId>
    <artifactId>minio</artifactId>
    <version>${minio.version}</version>
</dependency>

public class MinioUtil {
     private static String minio_url;
     private static String minio_name;
     private static String minio_pass;
      private static String minio_bucketName;
  
    /**
     * 
     * @Title: uploadImage
     * @Description:上传图片
     * @param inputStream
     * @param suffix
     * @return
     * @throws Exception
     */
    public static JSONObject uploadImage(InputStream inputStream, String suffix) throws Exception {
        return upload(inputStream, suffix, "image/jpeg");
    }
  
    /**
     * @Title: uploadVideo
     * @Description:上传视频
     * @param inputStream
     * @param suffix
     * @return
     * @throws Exception
     */
    public static JSONObject uploadVideo(InputStream inputStream, String suffix) throws Exception {
        return upload(inputStream, suffix, "video/mp4");
    }
 
     /**
     * @Title: uploadVideo
     * @Description:上传文件
     * @param inputStream
     * @param suffix
     * @return
     * @throws Exception
     */
    public static JSONObject uploadFile(InputStream inputStream, String suffix) throws Exception {
        return upload(inputStream, suffix, "application/octet-stream");
    }
  
    /**
     * 上传字符串大文本内容
     * 
     * @Title: uploadString
     * @Description:描述方法
     * @param str
     * @return
     * @throws Exception
     */
    public static JSONObject uploadString(String str) throws Exception {
        if (!StringUtils.notNullAndEmpty(str)) {
            return new JSONObject();
        }
        InputStream inputStream = new ByteArrayInputStream(str.getBytes());
        return upload(inputStream, null, "text/html");
    }
  
    /**
     * @Title: upload
     * @Description:上传主功能
     * @return
     * @throws Exception
     */
    private static JSONObject upload(InputStream inputStream, String suffix, String contentType) 
             throws Exception {
        JSONObject map = new JSONObject();
        PropertiesLoader p = new PropertiesLoader("system.properties");
        minio_url = p.getProperty("minio_url");
        minio_name = p.getProperty("minio_name");
        minio_pass = p.getProperty("minio_pass");
        minio_bucketName = p.getProperty("minio_bucketName");
        MinioClient minioClient = new MinioClient(minio_url, minio_name, minio_pass);
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMM");
        String ymd = sdf.format(new Date());
        String objectName = ymd + "/" + UUID.randomUUID().toString() + (suffix != null ? suffix : "");
        minioClient.putObject(minio_bucketName, objectName, inputStream, contentType);
        String url = minioClient.getObjectUrl(minio_bucketName, objectName);
        map.put("flag", "0");
        map.put("mess", "上传成功");
        map.put("url", url);
        map.put("urlval", url);
        map.put("path", minio_bucketName + "/" + objectName);
        return map;
    }
}

package com.minio.client;
 
import io.minio.MinioClient;
import io.minio.errors.MinioException;
import lombok.extern.slf4j.Slf4j;
import org.xmlpull.v1.XmlPullParserException;
 
import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
 
@Slf4j
public class FileUploader {
    public static void main(String[] args) 
            throws NoSuchAlgorithmException, IOException, 
                   InvalidKeyException, XmlPullParserException {
        try {
            MinioClient minioClient =
                   new MinioClient("https://minio.sunseaiot.com", "sunseaiot", "sunseaiot",true);
 
            // 检查存储桶是否已经存在
            if(minioClient.bucketExists("ota")) {
                log.info("Bucket already exists.");
            } else {
                // 创建一个名为ota的存储桶
                minioClient.makeBucket("ota");
                log.info("create a new bucket.");
            }
 
            //获取下载文件的url，直接点击该url即可在浏览器中下载文件
            String url = minioClient.presignedGetObject("ota","hello.txt");
            log.info(url);
 
            //获取上传文件的url，这个url可以用Postman工具测试，在body里放入需要上传的文件即可
            String url2 = minioClient.presignedPutObject("ota","ubuntu.tar");
            log.info(url2);
 
            // 下载文件到本地
            minioClient.getObject("ota","hello.txt", "/Users/hbl/hello2.txt");
            log.info("get");
 
            // 使用putObject上传一个本地文件到存储桶中。
            minioClient.putObject("ota","tenant2/hello.txt", "/Users/hbl/hello.txt");
            log.info("/Users/hbl/hello.txt is successfully uploaded as hello.txt to `task1` bucket.");
        } catch(MinioException e) {
            log.error("Error occurred: " + e);
        }
    }
}