MinIO的安装与使用
一、MinIO是什么?二、MinIO安装(centos7)2.1 下载MinIO2.2 启动MinIO2.3 修改配置2.4 编写启动脚本,以及加入到systemctl中 三、Springboot集成MinIO3.1 项目应用 四、Java中图片压缩上传4.1 背景4.2 开发准备4.3 压缩上传 五、MinIO集群搭建(完善中~)
一、MinIO是什么?
MinIO 是一款高性能、分布式的对象存储系统. 它是一款软件产品, 可以100%的运行在标准硬件。即X86等低成本机器也能够很好的运行MinIO。
MinIO与传统的存储和其他的对象存储不同的是:它一开始就针对性能要求更高的私有云标准进行软件架构设计。因为MinIO一开始就只为对象存储而设计。所以他采用了更易用的方式进行设计,它能实现对象存储所需要的全部功能,在性能上也更加强劲,它不会为了更多的业务功能而妥协,失去MinIO的易用性、高效性。 这样的结果所带来的好处是:它能够更简单的实现局有弹性伸缩能力的原生对象存储服务。
MinIO在传统对象存储用例(例如辅助存储,灾难恢复和归档)方面表现出色。同时,它在机器学习、大数据、私有云、混合云等方面的存储技术上也独树一帜。当然,也不排除数据分析、高性能应用负载、原生云的支持。
MinIO主要采用Golang语言实现,,客户端与存储服务器之间采用http/https通信协议。
它与 Amazon S3 云存储服务 API 兼容
MinIO的相关信息
中文官网: http://www.minio.org.cn/
中文文档: http://docs.minio.org.cn/docs/
中文下载地址:http://www.minio.org.cn/download.shtml#/linux
英文官网: https://min.io/
英文文档: https://docs.min.io/
英文下载地址:https://min.io/download#/linux
Github地址:https://github.com/minio/minio
二、MinIO安装(centos7)
2.1 下载MinIO
演示以官网下载二进制文件配置,下载地址见上方,,,,docker安装更简单哦~
#创建目录mkdir /usr/local/minio/cd /usr/local/minio/#下载并添加权限wget http://dl.minio.org.cn/server/minio/release/linux-amd64/minio#赋值权限chmod +x minio
2.2 启动MinIO
#创建数据目录,数据目录存储需要大点mkdir -p /home/data/minio#创建日志目录mkdir -p /home/data/minio/logtouch /home/data/minio/log/minio.log#前台启动minio./minio server /home/data/minio#后台启动minionohup ./minio server /home/data/minio > /home/data/minio/log/minio.log &# nohup端口自定义启动服务 指定文件存放路径 /home/data/minio 还有设置日志文件路径 /home/data/minio/log/minio.lognohup ./minio server --address :9000 --console-address :9001 /home/data/minio > /home/data/minio/log/minio.log 2>&1 &
–address :9000 --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
关闭防火墙
如果未关闭,输入以下命令:
systemctl stop firewalld
注意:如果不想关闭防火墙,需要开放ip端口9000和设置静态控制访问IP
访问:http://192.168.92.100:9000
查看控制台
这里我们都使用的默认配置账号密码 minioadmin:minioadmin
2.3 修改配置
这里账号和密码都是用的默认的,如果我们要修改可以在环境变量里设置
修改环境变量
打开 /etc/profile 文件
vim /etc/profile
在文件的最末尾加上以下信息(启动的时候看提示,新版本需要用MINIO_ROOT_USER
和MINIO_ROOT_PASSWORD
,旧版需要用MINIO_ACCESS_KEY
和MINIO_SECRET_KEY
)。
按 i 键后,在文档末尾输入
(1)新版:
export MINIO_ROOT_USER=minioadminexport MINIO_ROOT_PASSWORD=admin123
(2)旧版
export MINIO_ACCESS_KEY=minioadminexport MINIO_SECRET_KEY=admin123
保存退出,刷新重载环境变量
source /etc/profile
2.4 编写启动脚本,以及加入到systemctl中
为了方便管理,我们这里给命令添加到脚本中
在/usr/local/minio/
目录下新建run.sh
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 +x run.sh
#!/bin/bash#配置登陆账号密码export MINIO_ROOT_USER=minioadminexport MINIO_ROOT_PASSWORD=admin123# nohup启动服务 指定文件存放路径 /home/data/minio 还有设置日志文件路径 /home/data/minio/log/minio.lognohup ./minio server --address :9000 --console-address :9001 /home/data/minio > /home/data/minio/log/minio.log 2>&1 &
然后启动minio
# 启动minio服务bash run.sh# 查看日志tail -200f /home/data/minio/log/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://192.168.92.100:9000
,输入这个地址后会重定向到控制台登录地址http://192.168.92.100:9001/login
添加到systemctl启动命令中
编写minio.service文件
vim /usr/lib/systemd/system/minio.service
填写以下内容
[Unit]Description=minioDocumentation=https://docs.min.ioWants=network-online.targetAfter=network-online.targetAssertFileIsExecutable=/usr/local/minio/minio[Service]#User and groupUser=rootGroup=rootExecStart=/usr/local/minio/run.sh#Let systemd restart this service alwaysRestart=always#Specifies the maximum file descriptor number that can be opened by this processLimitNOFILE=65536#Disable timeout logic and wait until process is stoppedTimeoutStopSec=infinitySendSIGKILL=no[Install]WantedBy=multi-user.target
赋值权限并且启动
chmod +x /usr/lib/systemd/system/minio.service
启动、查看、设置开机启动
systemctl daemon-reloadsystemctl start miniosystemctl enable miniosystemctl status minio
启动报错处理
systemctl start minioAssertion failed on job for minio.service.# 是 minio.service 的 AssertFileIsExecutable 路径错误AssertFileIsExecutable=/usr/local/minio# 改为AssertFileIsExecutable=/usr/local/minio/minio
到这里单机版的已经安装完毕!
三、Springboot集成MinIO
3.1 项目应用
项目的pom文件中引入minio依赖<properties> <minio.version>7.1.0</minio.version> <dependencies> <dependency> <groupId>io.minio</groupId> <artifactId>minio</artifactId> <version>${minio.version}</version> </dependency> </dependencies>
在application.yml
文件中配置minio minio: endpoint: http://192.168.92.100 port: 9000 accessKey: minioadmin secretKey: admin123 bucketName: test secure: false spring:#设置文件上传大小限制 servlet: multipart: max-file-size: 100MB max-request-size: 150MB
创建minio配置类和工具类配置类:
package cn.cvzhanshi.wechatpush.config;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;@Configuration@Component@ConfigurationProperties(prefix = "minio")@Getter@Setterpublic class MinioConfig { private String endpoint; private int port; private String accessKey; 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;// }}
工具类:
package cn.cvzhanshi.wechatpush.utils;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.lang3.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@Slf4jpublic 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); } }}
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;
创建minio上传接口
package cn.cvzhanshi.wechatpush.controller;import cn.cvzhanshi.wechatpush.config.MinioConfig;import cn.cvzhanshi.wechatpush.utils.MinioClientUtils;import cn.hutool.core.io.FileUtil;import io.swagger.annotations.Api;import io.swagger.annotations.ApiImplicitParam;import io.swagger.annotations.ApiImplicitParams;import io.swagger.annotations.ApiOperation;import lombok.AllArgsConstructor;import lombok.extern.slf4j.Slf4j;import org.apache.commons.lang3.RandomStringUtils;import org.apache.commons.lang3.math.NumberUtils;import org.springframework.stereotype.Controller;import org.springframework.util.CollectionUtils;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;@RestController@RequestMapping("/fileHandle")@Slf4j@AllArgsConstructor@Api(tags = "文件处理模块")public class FileHandleController {private MinioClientUtils minioClientUtils;private MinioConfig minioConfig;@ApiOperation(value = "上传文件,支持批量上传")@ApiImplicitParams({@ApiImplicitParam(name = "files", value = "文件流对象,接收数组格式", paramType = "query",required = true, dataType = "MultipartFile", allowMultiple = true)})@PostMapping("/uploadFile")public ApiResult uploadFile(@RequestParam(value = "files", required = true) MultipartFile[] files) {log.info(files.toString()); /* if (CollectionUtils.isEmpty(files)){ return ApiResult.error("未选择文件!"); }*/List<String> 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miniolong 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); }*/MinioResponseDTOList.add(fileUrl);} 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("fsp-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");}}
测试接口
四、Java中图片压缩上传
4.1 背景
现在大家都是用的智能手机拍照,拍出来的照片小则 2-3 M,大则十几 M,所以导致图片显示较慢。思考再三,决定将图片进行压缩再上传图片服务器来解决图片显示慢的问题
4.2 开发准备
引入 maven 依赖
<!-- 图片压缩 --><dependency> <groupId>net.coobird</groupId> <artifactId>thumbnailator</artifactId> <version>0.4.8</version></dependency>
本次我们选择了使用 thumbnailator 来作为压缩的工具
thumbnailator 简介
Thumbnailator 是一个用来生成图像缩略图的 Java 类库,通过很简单的代码即可生成图片缩略图,也可直接对一整个目录的图片生成缩略图
支持图片缩放,区域裁剪,水印,旋转,保持比例
压缩准备
判断是否是图片方法
/** * 判断文件是否为图片 */public boolean isPicture(String imgName) { boolean flag = false; if (StringUtils.isBlank(imgName)) { return false; } String[] arr = {"bmp", "dib", "gif", "jfif", "jpe", "jpeg", "jpg", "png", "tif", "tiff", "ico"}; for (String item : arr) { if (item.equals(imgName)) { flag = true; break; } } return flag;}
4.3 压缩上传
/** * 上传文件 * * @param file 文件 * @return */public JSONObject uploadFile(MultipartFile file) throws Exception { JSONObject res = new JSONObject(); res.put("code", 500); // 判断上传文件是否为空 if (null == file || 0 == file.getSize()) { res.put("msg", "上传文件不能为空"); return res; } // 判断存储桶是否存在 if (!client.bucketExists("test")) { client.makeBucket("test"); } // 拿到文件后缀名,例如:png String suffix = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".") + 1); // UUID 作为文件名 String uuid = String.valueOf(UUID.randomUUID()); // 新的文件名 String fileName = DateUtils.getYyyymmdd() + "/" + uuid + "." + suffix; /** * 判断是否是图片 * 判断是否超过了 100K */ if (isPicture(suffix) && (1024 * 1024 * 0.1) <= file.getSize()) { // 在项目根目录下的 upload 目录中生成临时文件 File newFile = new File(ClassUtils.getDefaultClassLoader().getResource("upload").getPath() + uuid + "." + suffix); // 小于 1M 的 if ((1024 * 1024 * 0.1) <= file.getSize() && file.getSize() <= (1024 * 1024)) { Thumbnails.of(file.getInputStream()).scale(1f).outputQuality(0.3f).toFile(newFile); } // 1 - 2M 的 else if ((1024 * 1024) < file.getSize() && file.getSize() <= (1024 * 1024 * 2)) { Thumbnails.of(file.getInputStream()).scale(1f).outputQuality(0.2f).toFile(newFile); } // 2M 以上的 else if ((1024 * 1024 * 2) < file.getSize()) { Thumbnails.of(file.getInputStream()).scale(1f).outputQuality(0.1f).toFile(newFile); } // 获取输入流 FileInputStream input = new FileInputStream(newFile); // 转为 MultipartFile MultipartFile multipartFile = new MockMultipartFile("file", newFile.getName(), "text/plain", input); // 开始上传 client.putObject("test", fileName, multipartFile.getInputStream(), file.getContentType()); // 删除临时文件 newFile.delete(); // 返回状态以及图片路径 res.put("code", 200); res.put("msg", "上传成功"); res.put("url", minioProp.getEndpoint() + "/" + "test" + "/" + fileName); } // 不需要压缩,直接上传 else { // 开始上传 client.putObject("test", fileName, file.getInputStream(), file.getContentType()); // 返回状态以及图片路径 res.put("code", 200); res.put("msg", "上传成功"); res.put("url", minioProp.getEndpoint() + "/" + "test" + "/" + fileName); } return res;}
这里我们判断了当文件为图片的时候,且当它大小超过了 (1024 * 1024 * 0.1),约为 100K 的时候,才进行压缩我们首先在根目录下的 upload 目录中创建了一个临时文件 newFileThumbnails.of(file.getInputStream()).scale(1f).outputQuality(0.3f).toFile(newFile);将压缩后的文件输出到临时文件中然后将 FileInputStream 转为 MultipartFile 上传最后删除临时文件 newFile.delete();完成图片压缩上传 遇到的问题:
Thumbnails.scale效果会导致图片大小变大
Thumbnails应该是存在bug,但是也一直没有更新版本,所以根据多次测试得来的结果:用jpg转成jpg效果最佳。所以当图片为png时,先改成jpg格式,再进行压缩。
public static String imgConvert(String tempDirPath, String fileName, String fileExt) throws IOException { String srcPath = tempDirPath + fileName; //原始图片路径 if("png".equals(fileExt)) { //生成新图片名称 SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss"); String fileString = df.format(new Date()) + "_" + new Random().nextInt(1000) + ".jpg"; //新图片全路径 String newJpg = tempDirPath + fileString; // 1、先转换成jpg Thumbnails.of(srcPath).scale(1f).toFile(newJpg); //2.jpg图片压缩 Thumbnails.of(newJpg).scale(1f).outputQuality(0.25d).toFile(newJpg); //压缩成功后,删除png图片 File f = new File(srcPath); f.delete(); return fileString; } else { Thumbnails.of(srcPath).scale(1f).outputQuality(0.25d).toFile(srcPath); } return null; }