minio安装部署可以看这篇教程：https://blog.csdn.net/qq_43108153/article/details/134016896
创建桶
将私有设置成公开
导入依赖
<!-- minio -->
<dependency>
<groupId>io.minio</groupId>
<artifactId>minio</artifactId>
<version>8.0.3</version>
</dependency>
yml中配置minio地址、账号密码、桶名称
minio:
# endpoint: http://192.168.1.100:9000 #线上地址
endpoint: http://127.0.0.1:9000 #本地地址
accessKey: minioadmin
secretKey: minioadmin
bucketName: mybucket
我们需要这三个类来处理
MinioClientConfig
package com.ckm.ball.config;
import io.minio.MinioClient;
import lombok.Data;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;
/**
* @author ckm
* @version 1.0
* @className MinIoClientConfig
* @description
* @create 2022/9/28 15:27
*/
@Component
@Data
public class MinioClientConfig {
@Value("${minio.endpoint}")
private String endpoint;
@Value("${minio.secretKey}")
private String secretKey;
@Value("${minio.accessKey}")
private String accessKey;
@Bean
public MinioClient minioClient() {
return MinioClient.builder().endpoint(endpoint).credentials(accessKey, secretKey).build();
}
}
MinioObjectItem
package com.ckm.ball.config;
import lombok.Data;
/**
* @author ckm
* @version 1.0
* @className ObjectItem
* @description
* @create 2022/9/28 15:30
*/
@Data
public class MinioObjectItem {
private String objectName;
private Long size;
}
MinioUtils
package com.ckm.ball.config;
import com.alipay.service.schema.util.StringUtil;
import io.minio.*;
import io.minio.http.Method;
import io.minio.messages.DeleteError;
import io.minio.messages.DeleteObject;
import io.minio.messages.Item;
import org.apache.commons.io.IOUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.UUID;
import java.util.stream.Collectors;
/**
* @author ckm
* @version 1.0
* @className MinioUtils
* @description
* @create 2022/9/28 15:30
*/
@Component
public class MinioUtils {
@Autowired
private MinioClient minioClient;
@Value("${minio.bucketName}")
private String bucketName;
/**
* description: 判断bucket是否存在，不存在则创建
*
* @return: void
*/
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;
}
/**
* 创建存储bucket
*
* @param bucketName 存储bucket名称
* @return Boolean
*/
public Boolean makeBucket(String bucketName) {
try {
minioClient.makeBucket(MakeBucketArgs.builder()
.bucket(bucketName)
.build());
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* 删除存储bucket
*
* @param bucketName 存储bucket名称
* @return Boolean
*/
public Boolean removeBucket(String bucketName) {
try {
minioClient.removeBucket(RemoveBucketArgs.builder()
.bucket(bucketName)
.build());
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
/**
* description: 上传文件
*
* @param file
* @return: java.lang.String
*/
public String upload(MultipartFile file, String bucketNameStr) {
String imageId = UUID.randomUUID().toString();
String fileName = file.getOriginalFilename();
String[] split = fileName.split("\\.");
if (split.length > 1) {
fileName = split[0] + "-" + imageId + "." + split[1];
} else {
fileName = fileName + System.currentTimeMillis();
}
InputStream in = null;
try {
if (StringUtil.isEmpty(bucketNameStr)) {
bucketNameStr = bucketName;
}
in = file.getInputStream();
minioClient.putObject(PutObjectArgs.builder()
.bucket(bucketNameStr)
.object(fileName)
.stream(in, in.available(), -1)
.contentType(file.getContentType())
.build()
);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
// return bucketNameStr + "/" + fileName;
return fileName;
}
/**
* description: 下载文件
*
* @param fileName
* @return: org.springframework.http.ResponseEntity<byte [ ]>
*/
public ResponseEntity<byte[]> download(String fileName) {
ResponseEntity<byte[]> responseEntity = null;
InputStream in = null;
ByteArrayOutputStream out = null;
try {
in = minioClient.getObject(GetObjectArgs.builder().bucket(bucketName).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, HttpStatus.OK);
} 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;
}
/**
* 查看文件对象
*
* @param bucketName 存储bucket名称
* @return 存储bucket内文件对象信息
*/
public List<MinioObjectItem> listObjects(String bucketName) {
Iterable<Result<Item>> results = minioClient.listObjects(
ListObjectsArgs.builder().bucket(bucketName).build());
List<MinioObjectItem> minioObjectItems = new ArrayList<>();
try {
for (Result<Item> result : results) {
Item item = result.get();
MinioObjectItem minioObjectItem = new MinioObjectItem();
minioObjectItem.setObjectName(item.objectName());
minioObjectItem.setSize(item.size());
minioObjectItems.add(minioObjectItem);
}
} catch (Exception e) {
e.printStackTrace();
return null;
}
return minioObjectItems;
}
/**
* 批量删除文件对象
*
* @param bucketName 存储bucket名称
* @param objects 对象名称集合
*/
public Iterable<Result<DeleteError>> removeObjects(String bucketName, List<String> objects) {
List<DeleteObject> dos = objects.stream().map(e -> new DeleteObject(e)).collect(Collectors.toList());
Iterable<Result<DeleteError>> results = minioClient.removeObjects(RemoveObjectsArgs.builder().bucket(bucketName).objects(dos).build());
return results;
}
/**
* 根据文件名和桶获取文件路径
*
* @param bucketName 存储bucket名称
*/
public String getFileUrl(String bucketName, String objectFile) {
try {
if(StringUtil.isEmpty(bucketName)){
bucketName = this.bucketName;
}
return minioClient.getPresignedObjectUrl(GetPresignedObjectUrlArgs.builder()
.method(Method.GET)
.bucket(bucketName)
.object(objectFile)
.build()
);
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
}
业务中测试上传图片
Base64ToMultipartFile转换工具类
package com.ckm.ball.utils;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.multipart.MultipartFile;
import java.util.Base64;
@Configuration
public class Base64ToMultipartFile {
public MultipartFile base64ToMultipartFile (String s) {
MultipartFile image = null;
StringBuilder base64 = new StringBuilder("");
if (s != null && !"".equals(s)) {
base64.append(s);
String[] baseStrs = base64.toString().split(",");
byte[] b = new byte[0];
b = Base64.getDecoder().decode(baseStrs[1]);
for (int j = 0; j < b.length; ++j) {
if (b[j] < 0) {
b[j] += 256;
}
}
image = new BASE64DecodedMultipartFile(b, baseStrs[0]);
}
return image;
}
}
上传成功
