Minio 入门

安装

Docker

docker run  --name minio \
-d --restart=always \
-p 9000:9000 \
-p 9001:9001 \
--network tool-net --network-alias minio \
-e "MINIO_ACCESS_KEY=admin" \
-e "MINIO_SECRET_KEY=admin123456" \
-v minio_data:/data \
-v min_config:/root/.minio \
minio/minio server /data --console-address ":9001"

• 注意：

  1. --console-address 当前最新版必须指定控制台端口（浏览器页面访问端口）,如果不指定，将会随机生成端口，不方便服务器开启防火墙
  2. Minio 默认api addres 的端口是9000，浏览器访问9000端口时，会跳转到控制台端口--console-address
  3. 一定要将Minio的数据目录挂载到主机上，防止删除容器时，删除了储存的数据

控制台

进入控制台可以通过9000端口，他会自动跳转到控制台的9001端口，也可以直接通过9001端口进入控制台

登录

控台登录账户和密码是Docker 启动时的MINIO_ACCESS_KEY参数和MINIO_SECRET_KEY参数

桶

桶（Bucket）：Minio 通过桶去存储文件，存储文件时需要指定目标桶才可以存储，

创建桶

点击Bucket->create bucket

配置桶

1. 基础信息

右侧有关于配置信息的解释

• Bucket Name： 桶名
• Version：开启统一对象多版本
• Object locking：对象锁：防止对象被删除，如果不设置Retention，那么文件将不能被删除
• Quota：配额，限制桶内的对象数量
• Retention：保留策略，设置文件再桶内存活的周期，开启后Object locking会自动开启，因为文件保留期间，对象是禁止删除的
  • Model：策略模式：1. Compliance：在Validity天后被删除 2. Governance 在Validity天后删除在生命周期内未操作的对象
  • Validity：生命周期：对象至少存活多少天

2. 桶内对象的操作策略

点击Bucket-->Manage--> Access Rules

上传后的对象名格式：[Rule alias]_[Object Name].[文件后缀]

• Prefix：Rule 别名
• Access：决策

身份 Identity

身份管理

账户 Users

创建、管理Minio账户

账户组 Groups

对Minio用户进行分组

服务账户 Services Accounts

创建、管理服务账户
这里创建的账户，主要用于开发，也是最常用的

Create Service Account

1. 点击create service account，创建Service Account

Minio会自动创建键账户和密码，如果开发这需要配置使用权限，可开启下方的Restrict beyond user policy

2. 点击create，会提示你保存密钥信息，个人建议下载密钥i信息，因为密钥是随机值，不方便记忆
   

使用

Spring boot

依赖

<dependency>
	<groupId>io.miniogroupId>
    <artifactId>minioartifactId>
    <version>8.2.1version>
dependency>

配置类

MinIOProperties.java

Minio 参数 Properties类

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

@Data
@ConfigurationProperties(prefix = "minio")
public class MinIOProperties {

    /**
     * 连接url
     */
    private String endpoint;
    /**
     *  Service Account——accesskey
     */
    private String accessKey;
    /**
     * Service Account——secretKey
     */
    private String secretKey;

    /**
     * 桶
     */
    private String bucket;

    /**
     * 分片大小
     */
    private long partSize=5 * 1024 * 1024;
}

MinIOHelper,java

Minio工具类，用于编写操作Minio的具体方法
该类在AutoConfig类中已注入到IOC容器中，方便开发者在service或controller中调用

import cn.hutool.core.util.ObjectUtil;
import io.minio.*;
import lombok.SneakyThrows;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.multipart.MultipartFile;

import java.io.FileNotFoundException;

public class MinIOHelper {

    @Autowired
    private MinioClient client;

    @Autowired
    private MinIOProperties properties;

    /**
     * 创建桶
     *
     * @param bucketName 通名称
     */
    @SneakyThrows
    public void createBucket(String bucketName) {
        BucketExistsArgs bucket = BucketExistsArgs.builder().bucket(bucketName).build();
        if (!client.bucketExists(bucket)) {
            MakeBucketArgs make = MakeBucketArgs.builder().bucket(bucketName).build();
            client.makeBucket(make);
        }
    }

    /**
     * 上传文件
     *
     * @param file       文件
     * @param bucketName 存储桶
     * @return
     */
    public String uploadFile(MultipartFile file, String bucketName, FileRule rule) throws FileNotFoundException {

        // 判断上传文件是否为空
        if (ObjectUtil.isEmpty(file) || 0 == file.getSize()) {
            throw new FileNotFoundException();
        }

        //检查桶名
        if (ObjectUtil.isEmpty(bucketName)) {
            bucketName = properties.getBucket();
            if (ObjectUtil.isEmpty(bucketName)) {
                throw new MinioUploadExecption("Bucket 必填");
            }
        }

        if (ObjectUtil.isEmpty(rule)) {
            rule = FileRule.READ_WRITE;
        }

        try {
            // 判断存储桶是否存在
            createBucket(bucketName);
            // 文件名
            String originalFilename = file.getOriginalFilename();
            // 新的文件名 = 存储桶名称_时间戳.后缀名
            String fileName = rule.getLabel() + "_" + System.currentTimeMillis() + originalFilename.substring(originalFilename.lastIndexOf("."));

            // 开始上传
            PutObjectArgs build = PutObjectArgs.builder()
                    .bucket(bucketName)
                    .object(fileName)
                    .contentType(file.getContentType())
                    .stream(file.getInputStream(), file.getSize(), properties.getPartSize())
                    .build();

            ObjectWriteResponse response = client.putObject(build);

            return bucketName + "/" + fileName;
        } catch (Exception e) {
            throw new MinioUploadExecption("上传失败");
        }
    }
}

FileRule.java

该枚举类实现的是Bucket Access Rules配置内容，方便开发者调用，不在用于记忆前缀

public enum FileRule {
    WRITE_ONLY(0, "w"),
    READ_ONLY(1, "r"),
    READ_WRITE(2,"r-w");

    private Integer value;

    private String label;

    FileRule(Integer value, String label) {
        this.value = value;
        this.label = label;
    }

    public Integer getValue() {
        return value;
    }

    public String getLabel() {
        return label;
    }
}

EnableOSS.java

Minio启动注解
将该类配置在对应服务的启动类上，即可
服务启动时spring 会自动去寻找@Import({MinIOAutoCondig.class})的自动配置类，从而实现自动配置

import org.springframework.context.annotation.Import;

import java.lang.annotation.*;

@Target({ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Import({MinIOAutoCondig.class})
public @interface EnableOSS {
}

MinIOAutoCondig.java

Minio 自动配置类
因为Minio 本身就是未分布式微服务而设计的，所以必然存在多模块，而为了调用方便，所以本文使用启动注解加自动配置类的方式调用Minio

import cn.hutool.core.util.ObjectUtil;
import io.minio.MinioClient;
import org.springframework.beans.factory.BeanCreationException;
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;

@ConditionalOnClass({MinioClient.class})
@Configuration
@EnableConfigurationProperties({MinIOProperties.class})
public class MinIOAutoCondig {

    @Autowired
    private MinIOProperties minIOProperties;

    private MinioClient client;

    @Bean
    public MinioClient minioClient() {
        if (ObjectUtil.isEmpty(minIOProperties.getEndpoint())) {
            throw new BeanCreationException("minio.endpoint don't null");
        }

        if (ObjectUtil.isEmpty(minIOProperties.getAccessKey())) {
            throw new BeanCreationException("minio.access-key don't null");
        }

        if (ObjectUtil.isEmpty(minIOProperties.getSecretKey())) {
            throw new BeanCreationException("minio.secret-key don't null");
        }

        client= MinioClient.builder().endpoint(minIOProperties.getEndpoint()).credentials(minIOProperties.getAccessKey(), minIOProperties.getSecretKey()).build();
        return client;
    }

    @Bean
    public MinIOHelper minIOHelper(){
        return new MinIOHelper();
    }
}

调用

Properties

minio.access-key、minio.secret-key分别对应的是Services Accounts 中创建的账户

minio.endpoint=http://xx.xx.xx.xx:9000
minio.bucket=client
minio.access-key=gutgSnXxxxxH2zgxxx
minio.secret-key=EOiOz9KFxxxxmaC8uGLxxxxQlJINVPSxxx

Controller

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import top.cxjfun.jdoc.client.server.vo.UploadFile;
import top.cxjfun.jdoc.common.CustomException;
import top.cxjfun.jdoc.common.db.oss.MinIOHelper;

import javax.servlet.http.HttpServletRequest;
import java.io.FileNotFoundException;

@RestController
@RequestMapping("/file")
public class FileController {

    @Autowired
    private MinIOHelper minIOHelper;

    @PostMapping("/upload")
    @ResponseBody
    public String upload(MultipartFile file, HttpServletRequest request) {
        try {
            String filePath = minIOHelper.uploadFile(file, null, null);
            return filePath;
        } catch (FileNotFoundException e) {
            throw new CustomException("FILE_NOT_FOUND", "文件未找到");
        }
    }
}

FAQ

io.minio.S3Base.(S3Base.java:105)

	An attempt was made to call a method that does not exist. The attempt was made from the following location:

    io.minio.S3Base.<clinit>(S3Base.java:105)

The following method did not exist:

    okhttp3.RequestBody.create([BLokhttp3/MediaType;)Lokhttp3/RequestBody;

The method's class, okhttp3.RequestBody, is available from the following locations:

    jar:file:/D:/repository/com/squareup/okhttp3/okhttp/3.14.9/okhttp-3.14.9.jar!/okhttp3/RequestBody.class

The class hierarchy was loaded from the following locations:

    okhttp3.RequestBody: file:/D:/repository/com/squareup/okhttp3/okhttp/3.14.9/okhttp-3.14.9.jar


Action:

Correct the classpath of your application so that it contains a single, compatible version of okhttp3.RequestBody

问题原因

Spring boot 和minio 依赖冲突产生的原因是因为spring boot 的okhttp 和minio 的okhttp冲突

解决办法

降低minio版本：8.3.0 —> 8.2.1