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Springboot + minio

news 来源：原创 2025/6/8 14:56:15

参考：

SpringBoot整合Minio_springboot minio-CSDN博客

<!--minio 依赖-->
        <dependency>
            <groupId>io.minio</groupId>
            <artifactId>minio</artifactId>
            <version>8.5.11</version>
        </dependency>

applicaion.xml

minio:
  config:
    endpointUrl: http://192.168.1.245:9000
    accessKey: minio
    secretKey: ********
    bucketName: prod

minio配置类

@Data
@Configuration
@ConfigurationProperties(prefix = "spring.minio")
public class MinioConfig {
    private String accessKey;

    private String secretKey;

    private String url;

    private String bucketName;

    @Bean
    public MinioClient minioClient(){
        return MinioClient.builder()
                .endpoint(url)
                .credentials(accessKey,secretKey)
                .build();
    }
}

MinioService

package com.zbIntel.integration.minio.service;

import com.zbIntel.integration.minio.MinioConfig;
import io.minio.*;
import io.minio.errors.*;
import io.minio.http.Method;
import lombok.SneakyThrows;
import org.apache.tomcat.util.http.fileupload.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;

import java.io.*;
import java.net.URLEncoder;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.time.LocalDate;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;


@Component
public class MinioService {

    @Autowired
    private MinioClient minioClient;

    @Autowired
    private MinioConfig configuration;

    /**
     * @param name 名字
     * @return boolean
     * @Description description: 判断bucket是否存在，不存在则创建
     */
    public boolean existBucket(String name) {
        boolean exists;
        try {
            exists = minioClient.bucketExists(BucketExistsArgs.builder().bucket(name).build());
            if (!exists) {
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(name).build());
                exists = true;
            }
        } catch (Exception e) {
            e.printStackTrace();
            exists = false;
        }
        return exists;
    }

    /**
     * @param bucketName 存储bucket名称
     * @return {@link Boolean }
     * @Description 创建存储bucket
     */
    public Boolean makeBucket(String bucketName) {
        try {
            minioClient.makeBucket(MakeBucketArgs.builder()
                    .bucket(bucketName)
                    .build());
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }

    /**
     * @param bucketName 存储bucket名称
     * @return {@link Boolean }
     * @Description 删除存储bucket
     */
    public Boolean removeBucket(String bucketName) {
        try {
            minioClient.removeBucket(RemoveBucketArgs.builder()
                    .bucket(bucketName)
                    .build());
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }

    /**
     * @param fileName 文件名称
     * @param time     时间
     * @return {@link Map }
     * @Description 获取上传临时签名
     */
    @SneakyThrows
    public Map getPolicy(String fileName, ZonedDateTime time) {
        PostPolicy postPolicy = new PostPolicy(configuration.getBucketName(), time);
        postPolicy.addEqualsCondition("key", fileName);
        try {
            Map<String, String> map = minioClient.getPresignedPostFormData(postPolicy);
            HashMap<String, String> map1 = new HashMap<>();
            map.forEach((k, v) -> {
                map1.put(k.replaceAll("-", ""), v);
            });
            map1.put("host", configuration.getUrl() + "/" + configuration.getBucketName());
            return map1;
        } catch (ErrorResponseException e) {
            e.printStackTrace();
        } catch (InsufficientDataException e) {
            e.printStackTrace();
        } catch (InternalException e) {
            e.printStackTrace();
        } catch (InvalidKeyException e) {
            e.printStackTrace();
        } catch (InvalidResponseException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (XmlParserException e) {
            e.printStackTrace();
        }
        return null;
    }

    /**
     * @param objectName 对象名称
     * @param method     方法
     * @param time       时间
     * @param timeUnit   时间单位
     * @return {@link String }
     * @Description 获取上传文件的url
     */
    public String getPolicyUrl(String objectName, Method method, int time, TimeUnit timeUnit) {
        try {
            return minioClient.getPresignedObjectUrl(GetPresignedObjectUrlArgs.builder()
                    .method(method)
                    .bucket(configuration.getBucketName())
                    .object(objectName)
                    .expiry(time, timeUnit).build());
        } catch (ErrorResponseException e) {
            e.printStackTrace();
        } catch (InsufficientDataException e) {
            e.printStackTrace();
        } catch (InternalException e) {
            e.printStackTrace();
        } catch (InvalidKeyException e) {
            e.printStackTrace();
        } catch (InvalidResponseException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (XmlParserException e) {
            e.printStackTrace();
        } catch (ServerException e) {
            e.printStackTrace();
        }
        return null;
    }


    /**
     * @param file     文件
     * @param fileName 文件名称
     * @Description 上传文件
     */
    public void upload(MultipartFile file, String fileName) {
        // 使用putObject上传一个文件到存储桶中。
        try {
            InputStream inputStream = file.getInputStream();
            minioClient.putObject(PutObjectArgs.builder()
                    .bucket(configuration.getBucketName())
                    .object(fileName)
                    .stream(inputStream, file.getSize(), -1)
                    .contentType(file.getContentType())
                    .build());
        } catch (ErrorResponseException e) {
            e.printStackTrace();
        } catch (InsufficientDataException e) {
            e.printStackTrace();
        } catch (InternalException e) {
            e.printStackTrace();
        } catch (InvalidKeyException e) {
            e.printStackTrace();
        } catch (InvalidResponseException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (ServerException e) {
            e.printStackTrace();
        } catch (XmlParserException e) {
            e.printStackTrace();
        }
    }

    /**
     * @param objectName 对象名称
     * @param time       时间
     * @param timeUnit   时间单位
     * @return {@link String }
     * @Description 根据filename获取文件访问地址
     */
    public String getUrl(String objectName, int time, TimeUnit timeUnit) {
        String url = null;
        try {
            url = minioClient.getPresignedObjectUrl(GetPresignedObjectUrlArgs.builder()
                    .method(Method.GET)
                    .bucket(configuration.getBucketName())
                    .object(objectName)
                    .expiry(time, timeUnit).build());
        } catch (ErrorResponseException e) {
            e.printStackTrace();
        } catch (InsufficientDataException e) {
            e.printStackTrace();
        } catch (InternalException e) {
            e.printStackTrace();
        } catch (InvalidKeyException e) {
            e.printStackTrace();
        } catch (InvalidResponseException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (XmlParserException e) {
            e.printStackTrace();
        } catch (ServerException e) {
            e.printStackTrace();
        }
        return url;
    }

    /**
     * @param fileName
     * @return {@link ResponseEntity }<{@link byte[] }>
     * @Description description: 下载文件
     */
    public ResponseEntity<byte[]> download(String fileName) {
        ResponseEntity<byte[]> responseEntity = null;
        InputStream in = null;
        ByteArrayOutputStream out = null;
        try {
            in = minioClient.getObject(GetObjectArgs.builder().bucket(configuration.getBucketName()).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<byte[]>(bytes, headers, 200);
        } 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;
    }

    /**
     * @param objectFile 对象文件
     * @return {@link String }
     * @Description 根据文件名和桶获取文件路径
     */
    public String getFileUrl(String objectFile) {
        try {

            return minioClient.getPresignedObjectUrl(GetPresignedObjectUrlArgs.builder()
                    .method(Method.GET)
                    .bucket(configuration.getBucketName())
                    .object(objectFile)
                    .build()
            );
        } catch (Exception e) {
            e.printStackTrace();
        }

        return null;
    }

    /**
     * 上传文件返回
     * @param multipartFile
     * @return
     */
    public String fileUpload(MultipartFile multipartFile) {
        // prod环境
        String bucketName = configuration.getBucketName();
        String endpointUrl = configuration.getUrl();
        String contentType = multipartFile.getContentType();

        try {
            String dateDir = LocalDate.now().format(DateTimeFormatter.ofPattern("yyyyMMdd"));
            String uuid = UUID.randomUUID().toString().replace("-", "");
            String fileName = dateDir + "/" + uuid + "_" + multipartFile.getOriginalFilename();

            boolean found = minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
            if (!found) {
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(bucketName).build());
            }

            try (InputStream inputStream = multipartFile.getInputStream()) {
                PutObjectArgs putObjectArgs = PutObjectArgs.builder()
                        .bucket(bucketName)
                        .object(fileName)
                        .stream(inputStream, multipartFile.getSize(), -1)
                        .contentType(contentType)
                        .build();

                minioClient.putObject(putObjectArgs);
                System.out.println("File uploaded successfully to MinIO: " + endpointUrl + "/" + bucketName + "/" + fileName);
                return "/" + bucketName + "/" + fileName;
            }
        } catch (Exception e) {
            System.out.println("Error uploading file to MinIO" + e);
            throw new RuntimeException("Failed to upload file to MinIO", e);
        } finally {
            // 关闭MinIO客户端
            try {
                minioClient.close();
            } catch (Exception e) {
                System.out.println("Error closing MinIO client" + e);
            }
        }
    }
}

Controller类

/**
     * 文件上传接口
     * @param file
     * @return
     * @throws IOException
     */
    @PostMapping("/file/upload")
    public ReturnResult updateFile(@RequestParam("file") MultipartFile file) throws IOException {

        try {
            Map<String, Object> resultMap = new HashMap<>();
            // 将上传的文件保存到服务器
            String filePath = minioService.fileUpload(file);
            if (StringUtils.isNotBlank(filePath)) {
                resultMap.put("result", filePath);
                return ReturnResult.ok().data(resultMap);
            } else {
                resultMap.put("result", "上传失败");
                return ReturnResult.error().data(resultMap);
            }
        } finally {
            // 确保即使识别过程中出现异常，文件也能被删除
            // deleteFile(filePath);
        }
    }