minio的下载和springboot整合minio使用方法

        <dependency>
            <groupId>io.minio</groupId>
            <artifactId>minio</artifactId>
            <version>8.2.2</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>

minio:
  endpoint: http://********:9000 #Minio服务所在地址
  accessKey: htsdg                #连接Minio用户名
  secretKey: 12345678               #连接Minio密码
  bucketName: bt01              #Minio数据桶名称

package com.htsdg.Properties;
import io.minio.MinioClient;
import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Data
@Configuration
@ConfigurationProperties(prefix = "minio")
public class MinIoConfig {
    /**
     * 访问用户
     */
    @Value("${minio.accessKey}")
    private String accessKey;
    /**
     * 密钥
     */
    @Value("${minio.secretKey}")
    private String secretKey;
    /**
     * 访问api Url
     */
    @Value("${minio.endpoint}")
    private String endpoint;
    /**
     * 桶名称
     */
    @Value("${minio.bucketName}")
    private String bucketName;
    /**
     * 创建MinIo客户端
     *
     * @return
     */
    @Bean
    public MinioClient minioClient() {
        return MinioClient.builder()
                .endpoint(endpoint)
                .credentials(accessKey, secretKey)
                .build();
    }
}

package com.htsdg.utils;
import io.minio.GetObjectArgs;
import io.minio.MinioClient;
import io.minio.PutObjectArgs;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
@Component
public class MinIOUtil {
    @Autowired
    private MinioClient minioClient;
    /**
     *  桶名称
     */
    @Value("${minio.bucketName}")
    private String bucketName;
    /**
     * putObject上传文件
     *
     * @param file 文件
     * @return filePath
     */
    public String putObject(MultipartFile file) throws IOException, ServerException, InsufficientDataException, InternalException, InvalidResponseException, InvalidKeyException, NoSuchAlgorithmException, XmlParserException, ErrorResponseException {
        //文件名
        String originalFilename = file.getOriginalFilename();
        //文件流
        InputStream inputStream = file.getInputStream();
        //文件大小
        long size = file.getSize();
        //文件路径
        String filePath = createFilePath(originalFilename);
        System.out.println(filePath+"\t文件路径");
        //存储方法 putObject
        minioClient.putObject(PutObjectArgs.builder()
                .bucket(bucketName)
                .object(filePath)
                .stream(inputStream, size, -1)
                .contentType(file.getContentType())
                .build());
        return filePath;
    }
    /**
     * 下载文件
     *
     * @param filePath 文件路径
     */
    public void getObject(HttpServletResponse httpServletResponse, String filePath) throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, ErrorResponseException {
        String fileName = getFileName(filePath);
        InputStream inputStream = minioClient.getObject(GetObjectArgs.builder()
                .bucket(bucketName)
                .object(filePath)
                .build());
        downloadFile(httpServletResponse, inputStream, fileName);
    }
    /**
     * 获取文件路径
     *
     * @param originalFilename 原始文件名称
     * @return FilePath
     */
    public String createFilePath(String originalFilename) {
        return "xycj/" + originalFilename;
    }
    /**
     * 根据文件路径获取文件名称
     *
     * @param filePath 文件路径
     * @return 文件名
     */
    public String getFileName(String filePath) {
        String[] split = StringUtils.split(filePath, "/");
        return split[split.length - 1];
    }
    /**
     * 下载文件
     *
     * @param httpServletResponse httpServletResponse
     * @param inputStream         inputStream
     * @param fileName            文件名
     * @throws IOException IOException
     */
    public void downloadFile(HttpServletResponse httpServletResponse, InputStream inputStream, String fileName) throws IOException {
        //设置响应头信息，告诉前端浏览器下载文件
        httpServletResponse.setContentType("application/octet-stream;charset=UTF-8");
        httpServletResponse.setCharacterEncoding("UTF-8");
        httpServletResponse.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(fileName, "UTF-8"));
        //获取输出流进行写入数据
        OutputStream outputStream = httpServletResponse.getOutputStream();
        // 将输入流复制到输出流
        byte[] buffer = new byte[4096];
        int bytesRead = -1;
        while ((bytesRead = inputStream.read(buffer)) != -1) {
            outputStream.write(buffer, 0, bytesRead);
        }
        // 关闭流资源
        inputStream.close();
        outputStream.close();
    }
}

package com.htsdg.controller;
import com.htsdg.utils.MinIOUtil;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;
@RestController
public class MinioController {
    @Autowired
    private MinIOUtil minIOUtil;
    /**
     * 通用上传请求
     */
    @PostMapping("/upload")
    public void uploadFile(MultipartFile file) throws Exception {
        minIOUtil.putObject(file);
        System.out.println("yes");
    }
    @GetMapping("/download")
    public void download(HttpServletResponse response, @RequestParam(value = "filepath") String filepath) throws IOException {
        try {
            minIOUtil.getObject(response, filepath);
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
            System.out.println("出错了！！！！！");
        }
    }
}