springboot：整合minio

• springboot：整合minio
• • 一、安装minio
  • 二、集成
  • • 依赖
    • yaml配置
    • 配置类
    • 工具类
    • 控制器

docker安装minio

minIo文档

安装上面这篇博客进入minio控制台，创建bucket

        
            io.minio
            minio
            8.0.3
        

spring:
  # 配置文件上传大小限制
  servlet:
    multipart:
      max-file-size: 200MB
      max-request-size: 200MB
minio:
  endpoint: http://127.0.0.1:9000
  accessKey: admin
  secretKey: admin
  bucketName: test

package com.yolo.springbootminio.config;

import io.minio.MinioClient;
import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;

@Data
@Component
public class MinIoClientConfig {
    @Value("${minio.endpoint}")
    private String endpoint;
    @Value("${minio.accessKey}")
    private String accessKey;
    @Value("${minio.secretKey}")
    private String secretKey;

    
    @Bean
    public MinioClient minioClient(){

        return MinioClient.builder()
                .endpoint(endpoint)
                .credentials(accessKey, secretKey)
                .build();
    }

}

package com.yolo.springbootminio.util;

import io.minio.*;
import io.minio.messages.DeleteError;
import io.minio.messages.DeleteObject;
import io.minio.messages.Item;
import lombok.Data;
import org.apache.tomcat.util.http.fileupload.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;


@Component
public class MinIoUtil {
    @Autowired
    private MinioClient minioClient;

    @Value("${minio.bucketName}")
    private String bucketName;
    
    public void existBucket(String name) {
        try {
            boolean exists = minioClient.bucketExists(BucketExistsArgs.builder().bucket(name).build());
            if (!exists) {
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(name).build());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    
    public Boolean makeBucket(String bucketName) {
        try {
            minioClient.makeBucket(MakeBucketArgs.builder()
                    .bucket(bucketName)
                    .build());
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }

    
    public Boolean removeBucket(String bucketName) {
        try {
            minioClient.removeBucket(RemoveBucketArgs.builder()
                    .bucket(bucketName)
                    .build());
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }
    
    public List upload(MultipartFile[] multipartFile) {
        List names = new ArrayList<>(multipartFile.length);
        for (MultipartFile file : multipartFile) {
            String fileName = file.getOriginalFilename();
            String[] split = fileName.split("\.");
            if (split.length > 1) {
                fileName = split[0] + "_" + System.currentTimeMillis() + "." + split[1];
            } else {
                fileName = fileName + System.currentTimeMillis();
            }
            InputStream in = null;
            try {
                in = file.getInputStream();
                minioClient.putObject(PutObjectArgs.builder()
                        .bucket(bucketName)
                        .object(fileName)
                        .stream(in, in.available(), -1)
                        .contentType(file.getContentType())
                        .build()
                );
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                if (in != null) {
                    try {
                        in.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
            names.add(fileName);
        }
        return names;
    }

    
    public ResponseEntity download(String fileName) {
        ResponseEntity responseEntity = null;
        InputStream in = null;
        ByteArrayOutputStream out = null;
        try {
            in = minioClient.getObject(GetObjectArgs.builder().bucket(bucketName).object(fileName).build());
            out = new ByteArrayOutputStream();
            IOUtils.copy(in, out);
            //封装返回值
            byte[] bytes = out.toByteArray();
            HttpHeaders headers = new HttpHeaders();
            try {
                headers.add("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
            headers.setContentLength(bytes.length);
            headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);
            headers.setAccessControlExposeHeaders(Arrays.asList("*"));
            responseEntity = new ResponseEntity(bytes, headers, HttpStatus.OK);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (in != null) {
                    try {
                        in.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
                if (out != null) {
                    out.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return responseEntity;
    }

    
    public List listObjects(String bucketName) {
        Iterable> results = minioClient.listObjects(
                ListObjectsArgs.builder().bucket(bucketName).build());
        List objectItems = new ArrayList<>();
        try {
            for (Result result : results) {
                Item item = result.get();
                ObjectItem objectItem = new ObjectItem();
                objectItem.setObjectName(item.objectName());
                objectItem.setSize(item.size());
                objectItems.add(objectItem);
            }
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        return objectItems;
    }

    
    public Iterable> removeObjects(String bucketName, List objects) {
        List dos = objects.stream().map(DeleteObject::new).collect(Collectors.toList());
        return minioClient.removeObjects(RemoveObjectsArgs.builder().bucket(bucketName).objects(dos).build());
    }

    @Data
    public static class ObjectItem {
        private String objectName;
        private Long size;
    }


}

@RestController
@Slf4j
public class MinioController {

    @Autowired
    private MinIoUtil minioUtil;

    @Value("${minio.endpoint}")
    private String address;
    @Value("${minio.bucketName}")
    private String bucketName;

    @PostMapping("/upload")
    public Object upload(MultipartFile file) {
       
        List upload = minioUtil.upload(new MultipartFile[]{file});

        return address+"/"+bucketName+"/"+upload.get(0);
    }

}

然后把这个地址输入到浏览器，这里看不到图片，是因为没有设置buckets的策略