博客

第一步：新建项目起个响亮的项目名

官方建议非官方Starter命名应遵循{name}-spring-boot-starter的格式

所以我们起名myminio-spring-boot-starte

下方是我的文件目录

第二步：导入pom依赖；

<dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
        </dependency>
        <dependency>
            <groupId>io.minio</groupId>
            <artifactId>minio</artifactId>
            <version>7.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
    </dependencies>

第三步：根据图上目录创建各自文件

MinioConfig

import com.file.service.FileStorageService;
import io.minio.MinioClient;
import lombok.Data;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;


@Data
@Configuration
@EnableConfigurationProperties({MinIOConfigProperties.class})
//当引入FileStorageService接口时
@ConditionalOnClass(FileStorageService.class)
public class MinIOConfig {

    @Autowired
    private MinIOConfigProperties minIOConfigProperties;

    @Bean
    public MinioClient buildMinioClient() {
        return MinioClient
                .builder()
                .credentials(minIOConfigProperties.getAccessKey(), minIOConfigProperties.getSecretKey())
                .endpoint(minIOConfigProperties.getEndpoint())
                .build();
    }
}

MinioconfigProperties

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;

import java.io.Serializable;

@Data
@ConfigurationProperties(prefix = "minio")  // 文件上传 配置前缀file.oss
public class MinIOConfigProperties implements Serializable {

    private String accessKey;
    private String secretKey;
    private String bucket;
    private String endpoint;
    private String readPath;
}

FileStorageService

import java.io.InputStream;

/**
 * @author 
 */
public interface FileStorageService {

    /**
     * 上传文件
     * @param prefix  文件前缀
     */
    public String uploadFile(String prefix, String filename,InputStream inputStream);

    /**
     * 删除文件
     * @param pathUrl  文件全路径
     */
    public void delete(String pathUrl);

    /**
     * 下载文件
     * @param pathUrl  文件全路径
     * @return
     *
     */
    public byte[]  downLoadFile(String pathUrl);

}

MinioFileStorageService

import com.file.service.FileStorageService;
import com.file.config.MinIOConfig;
import com.file.config.MinIOConfigProperties;
import io.minio.GetObjectArgs;
import io.minio.MinioClient;
import io.minio.PutObjectArgs;
import io.minio.RemoveObjectArgs;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.Import;
import org.springframework.util.StringUtils;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.SimpleDateFormat;
import java.util.Date;

@Slf4j
@EnableConfigurationProperties(MinIOConfigProperties.class)
@Import(MinIOConfig.class)
public class MinIOFileStorageService implements FileStorageService {


    @Autowired
    private MinioClient minioClient;

    @Autowired
    private MinIOConfigProperties minIOConfigProperties;

    private final static String separator = "/";

    /**
     * @param dirPath
     * @param filename  yyyy/mm/dd/file.jpg
     * @return
     */
    public String builderFilePath(String dirPath,String filename) {
        StringBuilder stringBuilder = new StringBuilder(50);
        if(!StringUtils.isEmpty(dirPath)){
            stringBuilder.append(dirPath).append(separator);
        }
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");
        String todayStr = sdf.format(new Date());
        stringBuilder.append(todayStr).append(separator);
        stringBuilder.append(filename);
        return stringBuilder.toString();
    }
    /**
     * 上传文件
     *
     * @param prefix      文件前缀
     * @param filename
     * @param inputStream
     */
    @Override
    public String uploadFile(String prefix, String filename, InputStream inputStream) {
        String filePath = builderFilePath(prefix, filename);
        try {
            PutObjectArgs putObjectArgs = PutObjectArgs.builder()
                    .object(filePath)
                    .contentType("application/octet-stream")
                    .bucket(minIOConfigProperties.getBucket()).stream(inputStream,inputStream.available(),-1)
                    .build();
            minioClient.putObject(putObjectArgs);
            StringBuilder urlPath = new StringBuilder(minIOConfigProperties.getReadPath());
            urlPath.append(separator+minIOConfigProperties.getBucket());
            urlPath.append(separator);
            urlPath.append(filePath);
            return urlPath.toString();
        }catch (Exception ex){
            log.error("minio put file error.",ex);
            ex.printStackTrace();
            throw new RuntimeException("上传文件失败");
        }
    }

    /**
     * 删除文件
     * @param pathUrl  文件全路径
     */
    @Override
    public void delete(String pathUrl) {
        String key = pathUrl.replace(minIOConfigProperties.getEndpoint()+"/","");
        int index = key.indexOf(separator);
        String bucket = key.substring(0,index);
        String filePath = key.substring(index+1);
        // 删除Objects
        RemoveObjectArgs removeObjectArgs = RemoveObjectArgs.builder().bucket(bucket).object(filePath).build();
        try {
            minioClient.removeObject(removeObjectArgs);
        } catch (Exception e) {
            log.error("minio remove file error.  pathUrl:{}",pathUrl);
            e.printStackTrace();
        }
    }


    /**
     * 下载文件
     * @param pathUrl  文件全路径
     * @return  文件流
     *
     */
    @Override
    public byte[] downLoadFile(String pathUrl)  {
        String key = pathUrl.replace(minIOConfigProperties.getEndpoint()+"/","");
        int index = key.indexOf(separator);
        String bucket = key.substring(0,index);
        String filePath = key.substring(index+1);
        InputStream inputStream = null;
        try {
            inputStream = minioClient.getObject(GetObjectArgs.builder().bucket(minIOConfigProperties.getBucket()).object(filePath).build());
        } catch (Exception e) {
            log.error("minio down file error.  pathUrl:{}",pathUrl);
            e.printStackTrace();
        }

        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        byte[] buff = new byte[100];
        int rc = 0;
        while (true) {
            try {
                if (!((rc = inputStream.read(buff, 0, 100)) > 0)) break;
            } catch (IOException e) {
                e.printStackTrace();
            }
            byteArrayOutputStream.write(buff, 0, rc);
        }
        return byteArrayOutputStream.toByteArray();
    }
}

spring.factories

org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
  com.file.service.impl.MinIOFileStorageService

最后把我们写的minio-starter放入项目中，在父pom文件中引用这个starter

在application.yml中配置minio属性

minio:
  accessKey: //账号
  secretKey: //密码
  bucket: //桶名
  endpoint: http://locahost:9000   //ip+端口
  readPath: http://locahost:9000   //ip+端口

在自己controller中注入FileStorageService   编写自己的接口调用FileStorageService里的方法就可以了

    @Resource
    private FileStorageService FileService;


    /**
     * 文件上传到minio
     */
    @SneakyThrows
    @PostMapping("/uploadFileminio")
    public R testMinio(@RequestPart MultipartFile file) {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddHHmmss");
        String Str = sdf.format(new Date());
        String s = FileService.uploadFile("minio的文件夹名", Str+file.getOriginalFilename(), file.getInputStream());
        return R.ok(s);
    }