官网：https://www.minio.org.cn/
开源的分布式对象存储服务器

Window安装

用户名和密码相同

创建bucket，并且将策略改成public

一、添加依赖

二、代码

public class FileUploadTest{
	
	public static void main(String[] args) throws Exception{
		//创建一个Minio客户端对象(链接地址和用户名密码)
		MinioClient minioClient = MinioClient.builder()
			.endpoint("http://127.0.0.1:9000")
			.credentials("minioadmin","minioadmin")
			.build();

		boolean found = monioClient.bucketExists(BucketExistsArgs.builder().bucket("spzx-bucket").build());
		
		//如果不存在，那么此时就创建一个新的桶
		if(!found){
			minioClient.makeBucket(MakeBucketArgs.builder().bucket("spzx-bucket").build());
		}else{
			//如果存在打印信息
			System.out.println("Bucket 'spzx-bucket' already exists");
		}

		FileInputStream fis = new FileInputStream("D://01.jpg");
		PubObjectArgs putObjectArgs = PutObjectArgs.builder()
			.bucket("spzx-bucket")
			.stream(fis,fis.available(),-1)
			.object("01.jpg")
			.build();
		minioClient.putObject(putObjectArgs);

		//构建fileUrl
		String fileUrl = "http://127.0.0.1:9000/spzx-bucket/01.jpg";
		System.out.println(fileUrl);
	}
}

实战应用

上传一个文件到服务器

一、Cotroller/Service/Mapper

@RestController
@RequestMapping("/admin/system")
public class FileUploadController{
	
	@Autowired
	private FileUploadService fileUploadService;

	@PostMapping(value="/fileUpload")
	public Result<String> fileuploadService(@RequestParam(value="file") MultipartFile multipartFile){
		
		String fileUrl = fileUploadService.fileUpload(multipartFile);
		return Result.build(fileUrl,ResultCodeEnum.SUCCESS);
	}
}

@Service
public class FileUploadServiceImpl implements FileUploadService{
	
	@Override
	public String upload(MultipartFile file){
		try{
		//创建MinioClient对象
		MinioClient minioClient = MinioClient.builder()
			.endpoint("http://127.0.0.1:9000")
			.credentials("minioadmin",minioadmin)
			.build();

			//创建bucket
			boolean found = minioClient.bucketExists(BucketExistsArgs.builder().bucket("spzx-bucket")).build();
			if(!found){
				minioClient.makeBucket(MakeBucketArgs.builder().bucket("spzx-bucket")).build();
			}else{
				System.out.println("Bucket 'asiatrip' already exists");
			}

			//获取上传文件名称
			String filename = file.getOriginalFilename();
			//开始上传
			minioClient.putObject(
				PubObjectArgs.builder().bucket("spzx-bucket")
					.object("filename").stream(file.getInputStream(),file.getSize(),-1)
					.build()
			);
			//获取文件在服务器的路径
			String url = "http://127.0.0.1:9000/spzx-bucket" + filename;
			return url;
		}catch(Exception e){
			e.printStackTrace();
			throw new GuiguiException(ResultCodeEnum.SYSTEM_ERROR);
		}
	}
	
}

代码优化：

①、将固定的ip端口等放到配置文件中

spzx:
	minio:
		endpointUrl: http://127.0.0.1:9000
		accessKey: minioadmin
		secreKey: minioadmin
		bucketName: spzx-bucket

②、创建一个类读取配置文件

@Data
@ConfigurationProperties(prefix = "spzx.minio")
public class MinioProperties{
	//其中成员变量名必须和配置文件中的名一致
	private String endpointUrl;
	private Strin accessKey;
	private String secreKey;
	private String bucketName;
}

③、启动类中添加注解@EnableConfigurationProperties(value={MinioProperties.class})

④、使用

@Autowired
private MinioProperties minioProperties;

//通过get方法获取属性值

上传文件名称唯一性优化，根据当前日期对上传文件进行分：

//通过工具类DateUtil生成对应格式的目录
String dateDir = DateUtil.format(new Date(),"yyyyMMdd");
String uuid = UUID.randomUUID().toString().replaceAll("-","");

String filename = dateDir +"/"+uuid+file.getOriginalFilename();

前端

<el-upload
	class="avatar-upload"
	action="http://localhost:8501/admin/system/fileUpload"
	:show-file-list="false"
	:on-success="handleAvatarSuccess"
	:headers="headers">
	
</el-upload>

<script setup>
	import {useApp} from '@/pinia/modules/app'

	const headers = {
		token:useApp().authprization.token //从pinia中获取token,在进行文件上传时将token设置到请求头中
	}
	//图像上传成功以后的事件处理函数
	const handleAvatarSuccess = (response.uploadFile) => {
		sysUser.value.avatar = response.data
	}
</script>