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package com.ruoyi.common.utils.file;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.nio.file.Paths;
import java.util.Objects;
import org.apache.commons.io.FilenameUtils;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.config.MinioConfig;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.exception.file.FileNameLengthLimitExceededException;
import com.ruoyi.common.exception.file.FileSizeLimitExceededException;
import com.ruoyi.common.exception.file.InvalidExtensionException;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.uuid.Seq;
/**
* 文件上传工具类
*
* @author ruoyi
*/
public class FileUploadUtils
{
/**
* 默认大小 50M
*/
public static final long DEFAULT_MAX_SIZE = 50 * 1024 * 1024;
/**
* 默认的文件名最大长度 100
*/
public static final int DEFAULT_FILE_NAME_LENGTH = 100;
/**
* 本地默认上传的地址
*/
private static String defaultBaseDir = RuoYiConfig.getProfile();
/**
* Minio默认上传的地址
*/
private static String bucketName = MinioConfig.getBucketName();
public static void setDefaultBaseDir(String defaultBaseDir)
{
FileUploadUtils.defaultBaseDir = defaultBaseDir;
}
public static String getDefaultBaseDir()
{
return defaultBaseDir;
}
public static String getBucketName()
{
return bucketName;
}
/**
* 以默认配置进行文件上传
*
* @param file 上传的文件
* @return 文件名称
* @throws Exception
*/
public static final String upload(MultipartFile file) throws IOException
{
try
{
return upload(getDefaultBaseDir(), file, MimeTypeUtils.DEFAULT_ALLOWED_EXTENSION);
}
catch (Exception e)
{
throw new IOException(e.getMessage(), e);
}
}
/**
* 根据文件路径上传
*
* @param baseDir 相对应用的基目录
* @param file 上传的文件
* @return 文件名称
* @throws IOException
*/
public static final String upload(String baseDir, MultipartFile file) throws IOException
{
try
{
return upload(baseDir, file, MimeTypeUtils.DEFAULT_ALLOWED_EXTENSION);
}
catch (Exception e)
{
throw new IOException(e.getMessage(), e);
}
}
/**
* 文件上传
*
* @param baseDir 相对应用的基目录
* @param file 上传的文件
* @param allowedExtension 上传文件类型
* @return 返回上传成功的文件名
* @throws FileSizeLimitExceededException 如果超出最大大小
* @throws FileNameLengthLimitExceededException 文件名太长
* @throws IOException 比如读写文件出错时
* @throws InvalidExtensionException 文件校验异常
*/
public static final String upload(String baseDir, MultipartFile file, String[] allowedExtension)
throws FileSizeLimitExceededException, IOException, FileNameLengthLimitExceededException,
InvalidExtensionException
{
int fileNamelength = Objects.requireNonNull(file.getOriginalFilename()).length();
if (fileNamelength > FileUploadUtils.DEFAULT_FILE_NAME_LENGTH)
{
throw new FileNameLengthLimitExceededException(FileUploadUtils.DEFAULT_FILE_NAME_LENGTH);
}
assertAllowed(file, allowedExtension);
String fileName = extractFilename(file);
String absPath = getAbsoluteFile(baseDir, fileName).getAbsolutePath();
file.transferTo(Paths.get(absPath));
return getPathFileName(baseDir, fileName);
}
/**
* 以默认BucketName配置上传到Minio服务器
*
* @param file 上传的文件
* @return 文件名称
* @throws Exception
*/
public static final String uploadMinio(MultipartFile file) throws IOException
{
try
{
return uploadMinino(getBucketName(), file, MimeTypeUtils.DEFAULT_ALLOWED_EXTENSION);
}
catch (Exception e)
{
throw new IOException(e.getMessage(), e);
}
}
/**
* 以默认BucketName配置上传到Minio服务器
*
* @param file 上传的文件
* @param contentType 文件类型
* @return 文件名称
* @throws Exception
*/
public static final String uploadMinio(File file, String contentType) throws IOException {
return uploadMinio(file2MultipartFile(file, contentType));
}
/**
* 自定义bucketName配置上传到Minio服务器
*
* @param file 上传的文件
* @return 文件名称
* @throws Exception
*/
public static final String uploadMinio(MultipartFile file, String bucketName) throws IOException
{
try
{
return uploadMinino(bucketName, file, MimeTypeUtils.DEFAULT_ALLOWED_EXTENSION);
}
catch (Exception e)
{
throw new IOException(e.getMessage(), e);
}
}
/**
* 自定义bucketName配置上传到Minio服务器
*
* @param file 上传的文件
* @param contentType 文件类型
* @return 文件名称
* @throws Exception
*/
public static final String uploadMinio(File file, String contentType, String bucketName) throws IOException {
return uploadMinio(file2MultipartFile(file, contentType), bucketName);
}
private static final String uploadMinino(String bucketName, MultipartFile file, String[] allowedExtension)
throws FileSizeLimitExceededException, IOException, FileNameLengthLimitExceededException,
InvalidExtensionException
{
int fileNamelength = file.getOriginalFilename().length();
if (fileNamelength > FileUploadUtils.DEFAULT_FILE_NAME_LENGTH)
{
throw new FileNameLengthLimitExceededException(FileUploadUtils.DEFAULT_FILE_NAME_LENGTH);
}
assertAllowed(file, allowedExtension);
try
{
String fileName = extractFilename(file);
String pathFileName = MinioUtil.uploadFile(bucketName, fileName, file);
return pathFileName;
}
catch (Exception e)
{
throw new IOException(e.getMessage(), e);
}
}
/**
* 编码文件名
*/
public static final String extractFilename(MultipartFile file)
{
return StringUtils.format("{}/{}_{}.{}", DateUtils.datePath(),
FilenameUtils.getBaseName(file.getOriginalFilename()), Seq.getId(Seq.uploadSeqType), getExtension(file));
}
public static final File getAbsoluteFile(String uploadDir, String fileName) throws IOException
{
File desc = new File(uploadDir + File.separator + fileName);
if (!desc.exists())
{
if (!desc.getParentFile().exists())
{
desc.getParentFile().mkdirs();
}
}
return desc;
}
public static final String getPathFileName(String uploadDir, String fileName) throws IOException
{
int dirLastIndex = RuoYiConfig.getProfile().length() + 1;
String currentDir = StringUtils.substring(uploadDir, dirLastIndex);
return Constants.RESOURCE_PREFIX + "/" + currentDir + "/" + fileName;
}
/**
* 文件大小校验
*
* @param file 上传的文件
* @return
* @throws FileSizeLimitExceededException 如果超出最大大小
* @throws InvalidExtensionException
*/
public static final void assertAllowed(MultipartFile file, String[] allowedExtension)
throws FileSizeLimitExceededException, InvalidExtensionException
{
long size = file.getSize();
if (size > DEFAULT_MAX_SIZE)
{
throw new FileSizeLimitExceededException(DEFAULT_MAX_SIZE / 1024 / 1024);
}
String fileName = file.getOriginalFilename();
String extension = getExtension(file);
if (allowedExtension != null && !isAllowedExtension(extension, allowedExtension))
{
if (allowedExtension == MimeTypeUtils.IMAGE_EXTENSION)
{
throw new InvalidExtensionException.InvalidImageExtensionException(allowedExtension, extension,
fileName);
}
else if (allowedExtension == MimeTypeUtils.FLASH_EXTENSION)
{
throw new InvalidExtensionException.InvalidFlashExtensionException(allowedExtension, extension,
fileName);
}
else if (allowedExtension == MimeTypeUtils.MEDIA_EXTENSION)
{
throw new InvalidExtensionException.InvalidMediaExtensionException(allowedExtension, extension,
fileName);
}
else if (allowedExtension == MimeTypeUtils.VIDEO_EXTENSION)
{
throw new InvalidExtensionException.InvalidVideoExtensionException(allowedExtension, extension,
fileName);
}
else
{
throw new InvalidExtensionException(allowedExtension, extension, fileName);
}
}
}
/**
* 判断MIME类型是否是允许的MIME类型
*
* @param extension
* @param allowedExtension
* @return
*/
public static final boolean isAllowedExtension(String extension, String[] allowedExtension)
{
for (String str : allowedExtension)
{
if (str.equalsIgnoreCase(extension))
{
return true;
}
}
return false;
}
/**
* 获取文件名的后缀
*
* @param file 表单文件
* @return 后缀名
*/
public static final String getExtension(MultipartFile file)
{
String extension = FilenameUtils.getExtension(file.getOriginalFilename());
if (StringUtils.isEmpty(extension))
{
extension = MimeTypeUtils.getExtension(Objects.requireNonNull(file.getContentType()));
}
return extension;
}
/**
* java.io.File 转换 MultipartFile
* @param file java.io.File
* @param contentType 文件类型
* @return MultipartFile
* @throws IOException
*/
private static MultipartFile file2MultipartFile(File file, String contentType) throws IOException {
return new MockMultipartFile(file.getName(), file.getName(), contentType, new FileInputStream(file));
}
}