minio下载安装及java代码操作实现

1、下载地址:

        MinIO下载 | 中国镜像下载加速站

        MinIO下载和安装 | 用于创建高性能对象存储的代码和下载内容

2、启动minio
        set MINIO_ROOT_USER=admin
        set MINIO_ROOT_PASSWORD=12345678

        (双击无法启动,需要使用cmd命令板启动。解决办法:编写cmd启动命令文件或加载到开机启动)
        minio.exe server D:初始化存放路径minio

        出线如下画面说明启动成功                  

3、使用上边Console的地址及用户名密码登录页面客户端        

        具体操作参考API文档:Java Client API Reference — MinIO中文文档 | MinIO Linux中文文档

4、java代码实现

1)配置-前期准备

导入依赖包:

         <dependency>
            <groupId>io.minio</groupId>
            <artifactId>minio</artifactId>
            <version>8.0.3</version>
        </dependency>

配置文件配置连接信息

minio:
  #注意此处是https,由于后续讨论协议问题因此提前修改,不需要的可自行修改为http
  endpoint: https://xxx.xxx.xx:9000
  accesskey: minioadmin  #你的服务账号
  secretkey: minioadmin  #你的服务密码

配置MinioInfo文件

@Data
@Component
@ConfigurationProperties(prefix = "minio")
public class MinioInfo {
 
    private String endpoint;
 
    private String accesskey;
 
    private String secretkey;
}

配置MinioConfig文件

@Configuration
@EnableConfigurationProperties(MinioInfo.class)
public class MinioConfig {
 
    @Autowired
    private MinioInfo minioInfo;
 
    /**
     * 获取 MinioClient
     */
    @Bean
    public MinioClient minioClient() throws NoSuchAlgorithmException, KeyManagementException {
        return MinioClient.builder().endpoint(minioInfo.getEndpoint())
                .credentials(minioInfo.getAccesskey(),minioInfo.getSecretkey())
                .build();
   }
}

        

2)上传、下载、删除文件

        MinioUtils类

        

import io.minio.*;
import lombok.SneakyThrows;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
 
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.net.URLEncoder;
 
/**
 * @author: MM
 * @date: 2023-03-09 10:09
 */
@Slf4j
@Component
public class MinioUtils {
 
    @Autowired
    private MinioClient minioClient;
 
    @Autowired
    private MinioInfo minioInfo;
 
 
    /**
     * 上传文件
     * @param file
     * @param bucketName
     * @return
     * @throws Exception
     */
    public String uploadFile(MultipartFile file,String bucketName){
        if (null==file || 0 == file.getSize()){
            log.error("msg","上传文件不能为空");
            return null;
        }
        try {
            //判断是否存在
            createBucket(bucketName);
            //原文件名
            String originalFilename=file.getOriginalFilename();
            minioClient.putObject(
                    PutObjectArgs.builder().bucket(bucketName).object(originalFilename).stream(
                            file.getInputStream(), file.getSize(), -1)
                            .contentType(file.getContentType())
                            .build());
            return minioInfo.getEndpoint()+"/"+bucketName+"/"+originalFilename;
        }catch (Exception e){
            log.error("上传失败:{}",e.getMessage());
        }
        log.error("msg","上传失败");
        return null;
    }
 
   /**
     * 通过字节流上传
     * @param imageFullPath
     * @param bucketName
     * @param imageData
     * @return
     */
    public String uploadImage(String imageFullPath,
                              String bucketName,
                              byte[] imageData){
        ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(imageData);
        try {
            //判断是否存在
            createBucket(bucketName);
            minioClient.putObject(PutObjectArgs.builder().bucket(bucketName).object(imageFullPath)
                    .stream(byteArrayInputStream,byteArrayInputStream.available(),-1)
                    .contentType(".jpg")
                    .build());
            return minioInfo.getEndpoint()+"/"+bucketName+"/"+imageFullPath;
        }catch (Exception e){
            log.error("上传失败:{}",e.getMessage());
        }
        log.error("msg","上传失败");
        return null;
    }
 
    /**
     * 删除文件
     * @param bucketName
     * @param fileName
     * @return
     */
    public int removeFile(String bucketName,String fileName){
        try {
            //判断桶是否存在
            boolean res=minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
            if (res) {
                //删除文件
                minioClient.removeObject(RemoveObjectArgs.builder().bucket(bucketName)
                        .object(fileName).build());
            }
        } catch (Exception e) {
            System.out.println("删除文件失败");
            e.printStackTrace();
            return 1;
        }
        System.out.println("删除文件成功");
        return 0;
    }
 
/**
     * 下载文件
     * @param fileName
     * @param bucketName
     * @param response
     */
    public void fileDownload(String fileName,
                             String bucketName,
                             HttpServletResponse response) {
 
        InputStream inputStream   = null;
        OutputStream outputStream = null;
        try {
            if (StringUtils.isBlank(fileName)) {
                response.setHeader("Content-type", "text/html;charset=UTF-8");
                String data = "文件下载失败";
                OutputStream ps = response.getOutputStream();
                ps.write(data.getBytes("UTF-8"));
                return;
            }
 
            outputStream = response.getOutputStream();
            // 获取文件对象
            inputStream =minioClient.getObject(GetObjectArgs.builder().bucket(bucketName).object(fileName).build());
            byte buf[] = new byte[1024];
            int length = 0;
            response.reset();
            response.setHeader("Content-Disposition", "attachment;filename=" +
                    URLEncoder.encode(fileName.substring(fileName.lastIndexOf("/") + 1), "UTF-8"));
            response.setContentType("application/octet-stream");
            response.setCharacterEncoding("UTF-8");
            // 输出文件
            while ((length = inputStream.read(buf)) > 0) {
                outputStream.write(buf, 0, length);
            }
            System.out.println("下载成功");
            inputStream.close();
        } catch (Throwable ex) {
            response.setHeader("Content-type", "text/html;charset=UTF-8");
            String data = "文件下载失败";
            try {
                OutputStream ps = response.getOutputStream();
                ps.write(data.getBytes("UTF-8"));
            }catch (IOException e){
                e.printStackTrace();
            }
        } finally {
            try {
                outputStream.close();
                if (inputStream != null) {
                    inputStream.close();
                }}catch (IOException e){
                e.printStackTrace();
            }
        }
    }
 
    @SneakyThrows
    public void createBucket(String bucketName) {
        //如果不存在就创建
        if (!minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build())) {
            minioClient.makeBucket(MakeBucketArgs.builder().bucket(bucketName).build());
        }
    }
}

        Controller使用

上传

/**
     * 上传文件
     * @param file
     * @return
     */
@PostMapping(value = "/v1/minio/upload", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)
    @ResponseBody
    public JSONObject uploadByMinio(@RequestParam(name = "file")MultipartFile file) {
        JSONObject jso = new JSONObject();
        //返回存储路径
        String path = minioUtils.uploadFile(file, "musicearphone");
        jso.put("code", 2000);
        jso.put("data", path);
        return jso;
    }

下载

/**
     * 下载文件 根据文件名
     * @param fileName
     * @param response
     */
    @GetMapping("/v1/get/download")
    public void download(@RequestParam(name = "fileName") String fileName,
                         HttpServletResponse response){
        try {
            minioUtils.fileDownload(fileName,"musicearphone",response);
        }catch (Exception e){
            e.printStackTrace();
 
        }
    }

删除

/**
     * 通过文件名删除文件
     * @param fileName
     * @return
     */
@PostMapping("/v1/minio/delete")
    @ResponseBody
    public JSONObject deleteByName(String fileName){
        JSONObject jso = new JSONObject();
        int res = minioUtils.removeFile("musicearphone", fileName);
        if (res!=0){
            jso.put("code",5000);
            jso.put("msg","删除失败");
        }
        jso.put("code",2000);
        jso.put("msg","删除成功");
        return jso;
    }

代码实现模块参考:Java实现minio上传、下载、删除文件,支持https访问_minio下载文件-CSDN博客。

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