以往的项目，用的比较多的OSS服务是腾讯云和阿里云的存储服务，不过从去年到今年，最近的几个项目，普遍要使用Minio,所以我在开发服务器和测试服务器上都装上了minio
一、首先minio的安装
MInIO的安装有很多方法、单实例的、集群分布式的、docker部署的、支持k8s的，我们使用最简单的一种安装方式：linux单节点安装。
如果希望对MinIO有深入的掌握，访问MinIO官网：https://min.io
1.1 安装工作
首先在/root目录下创建一个minio文件夹
cd /root
mkdir minio
cd minio
wget https://dl.min.io/server/minio/release/linux-amd64/minio
等待下载完成后：
在当前minio目录下，会出现一个minio目录
chmod +x minio
# 创建minio文件存储目录及日志目录
mkdir -p /root/data/minio;
mkdir -p /root/logs/minio;
然后在 /root/minio/目录下，新建一个run.sh并编辑以下内容
vim run.sh,然后将以下内容保存到run.sh,并为其赋予执行权限chmod u+x run.sh
#!/bin/bash
export MINIO_ROOT_USER=root
export MINIO_ROOT_PASSWORD=xiaomifeng1010
# nohup启动服务 指定文件存放路径 /root/data 还有设置日志文件路径 /root/minio/log
nohup ./minio server --address :9002 --console-address :9001 /root/data/minio > /root/logs/minio/minio.log 2>&1 &注意：以前的老版本minio的配置中，配置用户名和密码时，是这两个参数：
MINIO_ACCESS_KEY 和MINIO_SECRET_KEY
而现在比较新的版本的minio，需要替换成MINIO_ROOT_USER和MINIO_ROOT_PASSWORD
并且用户名和密码都是由长度限制的，用户名长度不能小于3，密码不能小于8个字符
当然，minio安装完成，以及配置完成后，启动项目的run.sh的时候，如果你设置的用户名和密码长度不够，会有警告提示的，还有就是如果你的配置参数写成以前的旧版本的参数，也会提示你替换成对应的MINIO_ROOT_USER和MINIO_ROOT_PASSWORD
--address :9002 --console-address :9001 是配置端口，默认minio端口是9000，如果9000端口被占用了，那就加上这一串配置，端口号的冒号之前不需要特意写出ip，当然如果你的ip的动态变化的，而不是静态的话，前边的ip不用写上，当然最好是用静态的ip
然后启动minio
# 启动minio服务
bash run.sh
# 查看日志
tail -200f /root/logs/minio/minio.log
然后会有日志打印信息，然后可以看到minio服务器地址，和控制台信息地址
然后在浏览器中访问地址
http://ip:9002,输入这个地址后会重定向到控制台登录地址http://ip:9001/login
然后在登录界面输入用户名和密码即可登录
然后登录后进入首页，创建一个bucket
创建一个xxx-test，区分开发环境和测试环境，当然我在开发环境服务器上创建的是xxx-dev，由于当前在开发阶段，所以项目中我也配置的是xxx-dev这个桶
接下来我以开发环境中的桶演示minio文件的上传和下载等
二，springboot项目整合MinIO的javaSDK
2.1 项目的pom文件中引入minio依赖
<properties>
<maven.compiler.source>8</maven.compiler.source>
<maven.compiler.target>8</maven.compiler.target>
<minio.version>7.1.0</minio.version>
</properties>
<dependencies>
<dependency>
<groupId>io.minio</groupId>
<artifactId>minio</artifactId>
<version>${minio.version}</version>
</dependency>
</dependencies>2.2 在application-dev.yml文件中配置minio
minio:
endpoint: http://serverip
port: 9002
bucketName: xxx-dev
secure: false
spring:
mvc:
hiddenmethod:
filter:
enabled: true
# 设置文件上传大小限制
servlet:
multipart:
max-file-size: 100MB
max-request-size: 150MB由于csdn的限制不允许出现账号和密码相关配置，所以以上的yml配置请参照下边的minio配置类中的属性名，在yml文件中添加上
2.3 创建minio配置类和工具类
配置类：
package com.xiaomifeng1010.minio.configuration;
import io.minio.MinioClient;
import io.minio.errors.InvalidPortException;
import lombok.Getter;
import lombok.Setter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.stereotype.Component;
/**
* @author xiaomifeng1010
* @version 1.0
* @Description minio配置
*/
@Configuration
@Component
@ConfigurationProperties(prefix = "minio")
@Getter
@Setter
public class MinioConfig {
private String endpoint;
private int port;
// 对应账号（请手动加到yml文件中）
private String accessKey;
// 对应密码（请手动加到yml文件中）
private String secretKey;
private Boolean secure;
private String bucketName;
@Bean
public MinioClient getMinioClient() throws InvalidPortException {
MinioClient minioClient = MinioClient.builder().endpoint(endpoint, port, secure)
.credentials(accessKey, secretKey)
.build();
return minioClient;
}
//
// @Bean(name = "multipartResolver")
// public MultipartResolver multipartResolver(){
// CommonsMultipartResolver resolver = new CommonsMultipartResolver();
// resolver.setDefaultEncoding("UTF-8");
// //resolveLazily属性启用是为了推迟文件解析，以在在UploadAction中捕获文件大小异常
// resolver.setResolveLazily(true);
// resolver.setMaxInMemorySize(40960);
// //上传文件大小 50M 50*1024*1024
// resolver.setMaxUploadSize(50*1024*1024);
// return resolver;
// }
}
如何你要配置ip和port在同一个参数中，不分开，或者是直接配置域名(域名映射了ip和port)，那么配置的yml 修改如下：
把port注释掉，同时配置类也修改一下就可以了：
工具类：
package com.xiaomifeng.minio.util;
import io.minio.*;
import io.minio.errors.*;
import io.minio.http.Method;
import io.minio.messages.Bucket;
import io.minio.messages.DeleteError;
import io.minio.messages.DeleteObject;
import io.minio.messages.Item;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.List;
/**
* MinIO 客户端工具类
*/
@Component
@Slf4j
public class MinioClientUtils {
@Autowired
private MinioClient minioClient;
private static final int DEFAULT_EXPIRY_TIME = 7 * 24 * 3600;
/**
* 检查存储桶是否存在
*
* @param bucketName 存储桶名称
* @return boolean
*/
public boolean bucketExists(String bucketName) throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
boolean flag = false;
flag = minioClient.bucketExists(BucketExistsArgs.builder().bucket(bucketName).build());
if (flag) {
return true;
}
return false;
}
/**
* 创建存储桶
*
* @param bucketName 存储桶名称
*/
public boolean makeBucket(String bucketName) throws IOException, InvalidKeyException, InvalidResponseException, RegionConflictException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
boolean flag = bucketExists(bucketName);
if (!flag) {
minioClient.makeBucket(
MakeBucketArgs.builder()
.bucket(bucketName)
.build());
return true;
} else {
return false;
}
}
/**
* 列出所有存储桶名称
*
* @return List<String>
*/
public List<String> listBucketNames() throws IOException, InvalidResponseException, InvalidKeyException, NoSuchAlgorithmException, ServerException, ErrorResponseException, XmlParserException, InvalidBucketNameException, InsufficientDataException, InternalException {
List<Bucket> bucketList = listBuckets();
List<String> bucketListName = new ArrayList<>();
for (Bucket bucket : bucketList) {
bucketListName.add(bucket.name());
}
return bucketListName;
}
/**
* 列出所有存储桶
*
* @return List<Bucket>
*/
public List<Bucket> listBuckets() throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
return minioClient.listBuckets();
}
/**
* 删除存储桶
*
* @param bucketName 存储桶名称
* @return boolean
*/
public boolean removeBucket(String bucketName) throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
boolean flag = bucketExists(bucketName);
if (flag) {
Iterable<Result<Item>> myObjects = listObjects(bucketName);
for (Result<Item> result : myObjects) {
Item item = result.get();
// 有对象文件，则删除失败
if (item.size() > 0) {
return false;
}
}
// 删除存储桶，注意，只有存储桶为空时才能删除成功。
minioClient.removeBucket(RemoveBucketArgs.builder().bucket(bucketName).build());
flag = bucketExists(bucketName);
if (!flag) {
return true;
}
}
return false;
}
/**
* 列出存储桶中的所有对象名称
*
* @param bucketName 存储桶名称
* @return List<String>
*/
public List<String> listObjectNames(String bucketName) throws XmlParserException, IOException, InvalidResponseException, InvalidKeyException, NoSuchAlgorithmException, ServerException, ErrorResponseException, InvalidBucketNameException, InsufficientDataException, InternalException {
List<String> listObjectNames = new ArrayList<>();
boolean flag = bucketExists(bucketName);
if (flag) {
Iterable<Result<Item>> myObjects = listObjects(bucketName);
for (Result<Item> result : myObjects) {
Item item = result.get();
listObjectNames.add(item.objectName());
}
}
return listObjectNames;
}
/**
* 列出存储桶中的所有对象
*
* @param bucketName 存储桶名称
* @return Iterable<Result<Item>>
*/
public Iterable<Result<Item>> listObjects(String bucketName) throws XmlParserException, IOException, InvalidResponseException, InvalidKeyException, NoSuchAlgorithmException, ServerException, ErrorResponseException, InvalidBucketNameException, InsufficientDataException, InternalException {
boolean flag = bucketExists(bucketName);
if (flag) {
return minioClient.listObjects( ListObjectsArgs.builder().bucket(bucketName).build());
}
return null;
}
/**
* 通过文件上传到对象
*
* @param bucketName 存储桶名称
* @param objectName 存储桶里的对象名称
* @param fileName File name
* @return boolean
*/
public boolean uploadObject(String bucketName, String objectName, String fileName) throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
boolean flag = bucketExists(bucketName);
if (flag) {
minioClient.uploadObject(
UploadObjectArgs.builder()
.bucket(bucketName).object(objectName).filename(fileName).build());
ObjectStat statObject = statObject(bucketName, objectName);
if (statObject != null && statObject.length() > 0) {
return true;
}
}
return false;
}
/**
* 文件上传
*
* @param bucketName 存储捅名称
* @param multipartFile 文件
* @param filename 文件名
*/
public void putObject(String bucketName, MultipartFile multipartFile, String filename) throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
PutObjectOptions putObjectOptions = new PutObjectOptions(multipartFile.getSize(), PutObjectOptions.MIN_MULTIPART_SIZE);
putObjectOptions.setContentType(multipartFile.getContentType());
minioClient.putObject(
PutObjectArgs.builder().bucket(bucketName).object(filename).stream(
multipartFile.getInputStream(), multipartFile.getSize(), -1).contentType(multipartFile.getContentType())
.build());
}
/**
* 通过InputStream上传对象
*
* @param bucketName 存储桶名称
* @param objectName 存储桶里的对象名称
* @param inputStream 要上传的流
* @param contentType 上传的文件类型 例如 video/mp4 image/jpg
* @return boolean
*/
public boolean putObject(String bucketName, String objectName, InputStream inputStream,String contentType) throws IOException, InvalidResponseException, InvalidKeyException, NoSuchAlgorithmException, ServerException, ErrorResponseException, XmlParserException, InvalidBucketNameException, InsufficientDataException, InternalException {
boolean flag = bucketExists(bucketName);
if (flag) {
minioClient.putObject(PutObjectArgs.builder().bucket(bucketName).object(objectName).stream(
//不清楚文件的大小时，可以传-1，10485760。如果知道大小也可以传入size，partsize。
inputStream, -1, 10485760)
.contentType(contentType)
.build());
ObjectStat statObject = statObject(bucketName, objectName);
if (statObject != null && statObject.length() > 0) {
return true;
}
}
return false;
}
/**
* 以流的形式获取一个文件对象
*
* @param bucketName 存储桶名称
* @param objectName 存储桶里的对象名称
* @return InputStream
*/
public InputStream getObject(String bucketName, String objectName) throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
boolean flag = bucketExists(bucketName);
if (flag) {
ObjectStat statObject = statObject(bucketName, objectName);
if (statObject != null && statObject.length() > 0) {
InputStream stream = minioClient.getObject( GetObjectArgs.builder()
.bucket(bucketName)
.object(objectName)
.build());
return stream;
}
}
return null;
}
/**
* 以流的形式获取一个文件对象（断点下载）
*
* @param bucketName 存储桶名称
* @param objectName 存储桶里的对象名称
* @param offset 起始字节的位置
* @param length 要读取的长度 (可选，如果无值则代表读到文件结尾)
* @return InputStream
*/
public InputStream getObject(String bucketName, String objectName, long offset, Long length) throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
boolean flag = bucketExists(bucketName);
if (flag) {
ObjectStat statObject = statObject(bucketName, objectName);
if (statObject != null && statObject.length() > 0) {
InputStream stream = minioClient.getObject( GetObjectArgs.builder()
.bucket(bucketName)
.object(objectName)
.offset(1024L)
.length(4096L)
.build());
return stream;
}
}
return null;
}
/**
* 下载并将文件保存到本地
*
* @param bucketName 存储桶名称
* @param objectName 存储桶里的对象名称
* @param fileName File name
* @return boolean
*/
public boolean downloadObject(String bucketName, String objectName, String fileName) throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
boolean flag = bucketExists(bucketName);
if (flag) {
ObjectStat statObject = statObject(bucketName, objectName);
if (statObject != null && statObject.length() > 0) {
minioClient.downloadObject(DownloadObjectArgs.builder()
.bucket(bucketName)
.object(objectName)
.filename(fileName)
.build());
return true;
}
}
return false;
}
/**
* 删除一个对象
*
* @param bucketName 存储桶名称
* @param objectName 存储桶里的对象名称
*/
public boolean removeObject(String bucketName, String objectName) throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
boolean flag = bucketExists(bucketName);
if (flag) {
minioClient.removeObject(RemoveObjectArgs.builder().bucket(bucketName).object(objectName).build());
return true;
}
return false;
}
/**
* 删除指定桶的多个文件对象,返回删除错误的对象列表，全部删除成功，返回空列表
*
* @param bucketName 存储桶名称
* @param objectNames 含有要删除的多个object名称的迭代器对象
* @return
* eg:
* List<DeleteObject> objects = new LinkedList<>();
* objects.add(new DeleteObject("my-objectname1"));
* objects.add(new DeleteObject("my-objectname2"));
* objects.add(new DeleteObject("my-objectname3"));
*/
public List<String> removeObjects(String bucketName, List<DeleteObject> objectNames) throws IOException, InvalidKeyException, InvalidResponseException, InsufficientDataException, NoSuchAlgorithmException, ServerException, InternalException, XmlParserException, InvalidBucketNameException, ErrorResponseException {
List<String> deleteErrorNames = new ArrayList<>();
boolean flag = bucketExists(bucketName);
if (flag) {
Iterable<Result<DeleteError>> results = minioClient.removeObjects(RemoveObjectsArgs.builder().bucket(bucketName).objects(objectNames).build());
for (Result<DeleteError> result : results) {
DeleteError error = result.get();
deleteErrorNames.add(error.objectName());
}
}
return deleteErrorNames;
}
/**
* 生成一个给HTTP GET请求用的presigned URL。
* 浏览器/移动端的客户端可以用这个URL进行下载，即使其所在的存储桶是私有的。这个presigned URL可以设置一个失效时间，默认值是7天。
*
* @param bucketName 存储桶名称
* @param objectName 存储桶里的对象名称
* @param expires 失效时间（以秒为单位），默认是7天，不得大于七天
* @return
*/
public String getPresignedObjectUrl(String bucketName, String objectName, Integer expires) throws InvalidExpiresRangeException, IOException, InvalidResponseException, InvalidKeyException, NoSuchAlgorithmException, ServerException, ErrorResponseException, XmlParserException, InvalidBucketNameException, InsufficientDataException, InternalException {
boolean flag = bucketExists(bucketName);
String url = "";
if (flag) {
if (expires < 1 || expires > DEFAULT_EXPIRY_TIME) {
throw new InvalidExpiresRangeException(expires,
"expires must be in range of 1 to " + DEFAULT_EXPIRY_TIME);
}
try {
url = minioClient.getPresignedObjectUrl(GetPresignedObjectUrlArgs.builder()
.method(Method.GET)
.bucket(bucketName)
.object(objectName)
.expiry(expires)//动态参数
// .expiry(24 * 60 * 60)//用秒来计算一天时间有效期
// .expiry(1, TimeUnit.DAYS)//按天传参
// .expiry(1, TimeUnit.HOURS)//按小时传参数
.build());
} catch (ErrorResponseException | InsufficientDataException | InternalException | InvalidBucketNameException | InvalidExpiresRangeException | InvalidKeyException | InvalidResponseException | IOException | NoSuchAlgorithmException | ServerException | XmlParserException e) {
e.printStackTrace();
}
}
return url;
}
/**
* 生成一个给HTTP PUT请求用的presigned URL。
* 浏览器/移动端的客户端可以用这个URL进行上传，即使其所在的存储桶是私有的。这个presigned URL可以设置一个失效时间，默认值是7天。
*
* @param bucketName 存储桶名称
* @param objectName 存储桶里的对象名称
* @param expires 失效时间（以秒为单位），默认是7天，不得大于七天
* @return String
*/
public String presignedPutObject(String bucketName, String objectName, Integer expires) throws IOException, InvalidResponseException, InvalidKeyException, NoSuchAlgorithmException, ServerException, ErrorResponseException, XmlParserException, InvalidBucketNameException, InsufficientDataException, InternalException {
boolean flag = bucketExists(bucketName);
String url = "";
if (flag) {
if (expires < 1 || expires > DEFAULT_EXPIRY_TIME) {
try {
throw new InvalidExpiresRangeException(expires,
"expires must be in range of 1 to " + DEFAULT_EXPIRY_TIME);
} catch (InvalidExpiresRangeException e) {
e.printStackTrace();
}
}
try {
url = minioClient.getPresignedObjectUrl(GetPresignedObjectUrlArgs.builder()
.method(Method.PUT)
.bucket(bucketName)
.object(objectName)
.expiry(expires)//动态参数
// .expiry(24 * 60 * 60)//用秒来计算一天时间有效期
// .expiry(1, TimeUnit.DAYS)//按天传参
// .expiry(1, TimeUnit.HOURS)//按小时传参数
.build());
} catch (ErrorResponseException | InsufficientDataException e) {
e.printStackTrace();
} catch (InternalException e) {
log.error("InternalException",e);
} catch (InvalidBucketNameException e) {
log.error("InvalidBucketNameException",e);
} catch (InvalidExpiresRangeException e) {
log.error("InvalidExpiresRangeException",e);
} catch (InvalidKeyException e) {
log.error("InvalidKeyException",e);
} catch (InvalidResponseException e) {
log.error("InvalidResponseException",e);
} catch (IOException e) {
log.error("IOException",e);
} catch (NoSuchAlgorithmException e) {
log.error("NoSuchAlgorithmException",e);
} catch (ServerException e) {
log.error("ServerException",e);
} catch (XmlParserException e) {
log.error("XmlParserException",e);
}
}
return url;
}
/**
* 获取对象的元数据
*
* @param bucketName 存储桶名称
* @param objectName 存储桶里的对象名称
* @return
*/
public ObjectStat statObject(String bucketName, String objectName) throws IOException, InvalidResponseException, InvalidKeyException, NoSuchAlgorithmException, ServerException, ErrorResponseException, XmlParserException, InvalidBucketNameException, InsufficientDataException, InternalException {
boolean flag = bucketExists(bucketName);
if (flag) {
ObjectStat statObject = null;
try {
statObject = minioClient.statObject(StatObjectArgs.builder().bucket(bucketName).object(objectName).build());
} catch (ErrorResponseException e) {
log.error("ErrorResponseException",e);
} catch (InsufficientDataException e) {
log.error("ErrorResponseException",e);
e.printStackTrace();
} catch (InternalException e) {
log.error("InternalException",e);
} catch (InvalidBucketNameException e) {
log.error("InvalidBucketNameException",e);
} catch (InvalidKeyException e) {
log.error("InvalidKeyException",e);
} catch (InvalidResponseException e) {
log.error("InvalidResponseException",e);
} catch (IOException e) {
log.error("IOException",e);
} catch (NoSuchAlgorithmException e) {
log.error("NoSuchAlgorithmException",e);
} catch (ServerException e) {
log.error("ServerException",e);
} catch (XmlParserException e) {
log.error("XmlParserException",e);
}
return statObject;
}
return null;
}
/**
* 文件访问路径
*
* @param bucketName 存储桶名称
* @param objectName 存储桶里的对象名称
* @return String
*/
public String getObjectUrl(String bucketName, String objectName) throws IOException, InvalidResponseException, InvalidKeyException, NoSuchAlgorithmException, ServerException, ErrorResponseException, XmlParserException, InvalidBucketNameException, InsufficientDataException, InternalException {
boolean flag = bucketExists(bucketName);
String url = "";
if (flag) {
try {
url = minioClient.getObjectUrl(bucketName, objectName);
} catch (ErrorResponseException e) {
log.error("XmlParserException",e);
} catch (InsufficientDataException e) {
log.error("InsufficientDataException",e);
} catch (InternalException e) {
log.error("InternalException",e);
} catch (InvalidBucketNameException e) {
log.error("InvalidBucketNameException",e);
} catch (InvalidKeyException e) {
log.error("InvalidKeyException",e);
} catch (InvalidResponseException e) {
log.error("InvalidResponseException",e);
} catch (IOException e) {
log.error("IOException",e);
} catch (NoSuchAlgorithmException e) {
log.error("NoSuchAlgorithmException",e);
} catch (ServerException e) {
log.error("ServerException",e);
} catch (XmlParserException e) {
log.error("XmlParserException",e);
}
}
return url;
}
public void downloadFile(String bucketName, String fileName, String originalName, HttpServletResponse response) {
try {
InputStream file = minioClient.getObject(GetObjectArgs.builder()
.bucket(bucketName)
.object(fileName)
.build());
String filename = new String(fileName.getBytes("ISO8859-1"), StandardCharsets.UTF_8);
if (StringUtils.isNotEmpty(originalName)) {
fileName = originalName;
}
response.setHeader("Content-Disposition", "attachment;filename=" + filename);
ServletOutputStream servletOutputStream = response.getOutputStream();
int len;
byte[] buffer = new byte[1024];
while ((len = file.read(buffer)) > 0) {
servletOutputStream.write(buffer, 0, len);
}
servletOutputStream.flush();
file.close();
servletOutputStream.close();
} catch (ErrorResponseException e) {
log.error("ErrorResponseException",e);
} catch (Exception e) {
log.error("Exception",e);
}
}
}
2.3 创建一个数据表，用于保存上传到minio的文件的信息
CREATE TABLE `minio_file` (
`id` bigint(20) NOT NULL COMMENT '文件id',
`original_file_name` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL COMMENT '原始文件名称',
`file_ext_name` varchar(15) COLLATE utf8mb4_bin DEFAULT NULL COMMENT '文件拓展名',
`file_size` bigint(20) DEFAULT NULL COMMENT '文件大小(单位：字节）',
`file_name` varchar(35) COLLATE utf8mb4_bin DEFAULT NULL COMMENT '存入minio时的文件名称',
`mime` varchar(50) COLLATE utf8mb4_bin DEFAULT NULL COMMENT '文件的content-type',
`file_url` varchar(255) COLLATE utf8mb4_bin DEFAULT NULL COMMENT '文件路径',
`is_delete` tinyint(1) DEFAULT NULL COMMENT '是否删除 0 否 1 是',
`create_by` varchar(25) COLLATE utf8mb4_bin DEFAULT NULL,
`create_time` datetime DEFAULT NULL,
`update_by` varchar(25) COLLATE utf8mb4_bin DEFAULT NULL,
`update_time` datetime DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;然后使用idea自动代码生成插件，生成对应的实体类，mapper和service层
2.4 创建minio上传接口
package com.xiaomifeng1010.module.minio.controller;
import cn.hutool.core.io.FileUtil;
import com.xiaomifeng1010.base.util.ApiResult;
import com.xiaomifeng1010.module.minio.configuration.MinioConfig;
import com.xiaomifeng1010.module.minio.dto.response.MinioResponseDTO;
import com.xiaomifeng1010.module.minio.entity.MinioFile;
import com.xiaomifeng1010.module.util.MinioClientUtils;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiOperation;
import lombok.AllArgsConstructor;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.RandomStringUtils;
import org.apache.commons.lang3.math.NumberUtils;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import java.io.FileInputStream;
import java.time.Instant;
import java.util.ArrayList;
import java.util.List;
/**
* @author xiaomifeng1010
* @version 1.0
* @Description minio 文件处理（上传，下载，获取文件地址等）
*/
@Controller
@RequestMapping("/fileHandle")
@Slf4j
@AllArgsConstructor
@Api(tags = "文件处理模块")
public class FileHandleController {
private MinioClientUtils minioClientUtils;
private MinioConfig minioConfig;
@PostMapping(value = {"/admin/uploadFile","/web/uploadFile"})
@ResponseBody
@ApiOperation(value = "上传文件,支持批量上传")
@ApiImplicitParam(name = "files",value = "文件对象",dataType = "File")
public ApiResult uploadFile(@RequestParam("files") List<MultipartFile> files) {
log.info(files.toString());
if (CollectionUtils.isEmpty(files)){
return ApiResult.error("未选择文件！");
}
List<MinioResponseDTO> MinioResponseDTOList=new ArrayList<>();
for (MultipartFile file : files) {
String originalFilename = file.getOriginalFilename();
// 获取文件拓展名
String extName = FileUtil.extName(originalFilename);
log.info("文件拓展名:"+extName);
// 生成新的文件名，存入到minio
long millSeconds = Instant.now().toEpochMilli();
String minioFileName=millSeconds+ RandomStringUtils.randomNumeric(12)+"."+extName;
String contentType = file.getContentType();
log.info("文件mime:{}",contentType);
// 返回文件大小,单位字节
long size = file.getSize();
log.info("文件大小："+size);
try {
String bucketName = minioConfig.getBucketName();
minioClientUtils.putObject(bucketName,file,minioFileName);
String fileUrl = minioClientUtils.getObjectUrl(bucketName, minioFileName);
MinioFile minioFile = new MinioFile();
minioFile.setOriginalFileName(originalFilename);
minioFile.setFileExtName(extName);
minioFile.setFileName(minioFileName);
minioFile.setFileSize(size);
minioFile.setMime(contentType);
minioFile.setIsDelete(NumberUtils.INTEGER_ZERO);
minioFile.setFileUrl(fileUrl);
boolean insert = minioFile.insert();
if (insert) {
MinioResponseDTO minioResponseDTO = new MinioResponseDTO();
minioResponseDTO.setFileId(minioFile.getId());
minioResponseDTO.setOriginalFileName(originalFilename);
minioResponseDTO.setFileUrl(fileUrl);
MinioResponseDTOList.add(minioResponseDTO);
}
} catch (Exception e) {
log.error("上传文件出错:{}",e);
return ApiResult.error("上传文件出错");
}
}
return ApiResult.success(MinioResponseDTOList);
}
/**
* 仅仅用于测试，是否可以正常上传文件
* @return
* @throws Exception
*/
@GetMapping("/test")
@ApiOperation(value = "测试minio文件上传")
public ApiResult testPutObject() throws Exception {
FileInputStream fileInputStream = new FileInputStream("C:\\Users\\MSI\\Desktop\\新建文本文档.txt");
boolean bs = minioClientUtils.putObject("xxx-dev", "新建文本文档.txt", fileInputStream, "image/jpg");
log.info("上传成功?"+bs);
return ApiResult.success("上传成功");
}
}
为了在上传文件后，把问价地址返回给前端，所以封装了一个返回数据对象DTO
package com.xiaomifeng1010.module.minio.dto.response;
import lombok.Data;
/**
* @author xiaomifeng1010
* @version 1.0
* @Description
*/
@Data
public class MinioResponseDTO {
private Long fileId;
private String fileUrl;
private String originalFileName;
}
然后启动项目在knife4j文档页面测试，或者在postman中测试
由于设置了文件上传的最大限制，所以超出100兆，会抛出异MaxUploadSizeExceededException
，所以需要在全局异常处理器中处理
package com.xiaomifeng1010.module.exception.handler;
import com.xiaomifeng1010.base.handler.GlobalExceptionHandler;
import com.xiaomifeng1010.base.util.ApiResult;
import com.xiaomifeng1010.base.util.StatusEnum;
import com.xiaomifeng1010.module.exception.EnterpriseBusinessException;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.apache.tomcat.util.http.fileupload.impl.FileSizeLimitExceededException;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpStatus;
import org.springframework.validation.BindException;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.multipart.MaxUploadSizeExceededException;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import java.util.stream.Collectors;
/**
* @author xiaomifeng1010
* @version 1.0
* @Description 全局异常处理器
*/
@RestControllerAdvice
@Order(value = Ordered.HIGHEST_PRECEDENCE)
@Slf4j
public class BaseExceptionHandler extends GlobalExceptionHandler {
@Value("${spring.servlet.multipart.max-file-size}")
private String maxFileSize;
@ExceptionHandler(value = MethodArgumentNotValidException.class)
public ApiResult handleValidException(MethodArgumentNotValidException exception) {
BindingResult result = exception.getBindingResult();
String errorMessage = StringUtils.EMPTY;
if (result.hasErrors()) {
errorMessage = result.getFieldErrors().stream().map(FieldError::getDefaultMessage).collect(Collectors.joining(","));
log.error("请求对象[{}]验证错误信息{}", result.getFieldErrors().get(0).getObjectName(), errorMessage);
}
return ApiResult.error(HttpStatus.BAD_REQUEST.value(), errorMessage);
}
@ExceptionHandler(value = BindException.class)
public ApiResult handleValidException(BindException exception) {
BindingResult result = exception.getBindingResult();
String errorMessage = StringUtils.EMPTY;
if (result.hasErrors()) {
errorMessage = result.getFieldErrors().stream().map(FieldError::getDefaultMessage).collect(Collectors.joining(","));
log.error("请求对象[{}]验证错误信息{}", result.getFieldErrors().get(0).getObjectName(), errorMessage);
}
return ApiResult.error(HttpStatus.BAD_REQUEST.value(), errorMessage);
}
@ExceptionHandler(value = {MaxUploadSizeExceededException.class})
public ApiResult handleValidException(MaxUploadSizeExceededException exception) {
long maxUploadSize = exception.getMaxUploadSize();
log.error("允许的最大上传字节为:{}",maxUploadSize);
String errorMessage = "文件大于最大限制"+maxFileSize+",请重新上传";
log.error(errorMessage);
return ApiResult.error(HttpStatus.BAD_REQUEST.value(), errorMessage);
}
@Override
@ExceptionHandler({ConstraintViolationException.class})
public ApiResult handleConstraintValidationException(final ConstraintViolationException ex) {
String errorMessage = ex.getConstraintViolations().stream().map(ConstraintViolation::getMessage).collect(Collectors.joining(","));
return ApiResult.error(HttpStatus.BAD_REQUEST.value(), errorMessage);
}
@ExceptionHandler({EnterpriseBusinessException.class})
public ApiResult handEnterpriseBusinessException(EnterpriseBusinessException e) {
log.error("当前请求出现业务异常！", e);
return ApiResult.error(e.getCode(), e.getMessage());
}
@Override
@ExceptionHandler({Exception.class})
public ApiResult handleUnknownException(final Exception ex) {
if (ex instanceof MaxUploadSizeExceededException || ex instanceof FileSizeLimitExceededException) {
String errorMessage = "文件超出限制，请重新上传";
return ApiResult.error(errorMessage);
}
log.error("==> Error {} detected when request", ex.getMessage(), ex);
return ApiResult.error(StatusEnum.INTERNAL_SERVER_ERROR);
}
}接着再postman中上传一个100多兆的sql脚本文件
文章来源：https://www.toymoban.com/news/detail-456663.html
会提示超出文件最大限制 文章来源地址https://www.toymoban.com/news/detail-456663.html
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