FileUploadUtils.java
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package com.ruoyi.common.utils.file;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.ResponseResult;
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.sign.Base64;
import com.ruoyi.common.utils.uuid.Seq;
import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.ArrayUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.multipart.MultipartFile;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.nio.file.Paths;
import java.util.Objects;
/**
* 文件上传工具类
*
* @author ruoyi
*/
public class FileUploadUtils {
private final static Logger LOGGER = LoggerFactory.getLogger(FileUploadUtils.class);
/**
* 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;
/**
* 默认上传的地址
*/
private static String defaultBaseDir = RuoYiConfig.getProfile();
private static String uploadContent;
public static void setDefaultBaseDir(String defaultBaseDir) {
FileUploadUtils.defaultBaseDir = defaultBaseDir;
}
public static String getDefaultBaseDir() {
return defaultBaseDir;
}
/**
* 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);
}
/***
* 上传Base64内容的文件
* @author liujun
* @date 2024/7/12 9:18
* @param filePath 上传的路径
* @param fileName 上传文件名称
* @param type 文件类型
* @param uploadContent 文件内容
*
* @return ResponseResult 文件上传成功返回文件路径；上传异常返回500；文件超大返回1；不是图片返回2
*/
public static ResponseResult<String> uploadBase64OfImage(String filePath, String fileName, String type, String uploadContent) {
FileUploadUtils.uploadContent = uploadContent;
ByteArrayInputStream byteArrayInputStream = null;
BufferedImage bufferedImage = null;
try {
if (org.apache.commons.lang3.StringUtils.isEmpty(uploadContent)) {
return new ResponseResult<>(2, "请上传图片");
}
uploadContent = choosePrictureContent(uploadContent);
byte[] content = Base64.decode(uploadContent);
if (ArrayUtils.getLength(content) > DEFAULT_MAX_SIZE) {
}
byteArrayInputStream = new ByteArrayInputStream(content);
bufferedImage = ImageIO.read(byteArrayInputStream);
if (Objects.isNull(bufferedImage)) {
LOGGER.info("[{}]上传的不是图片", filePath);
return new ResponseResult<>(2);
}
StringBuilder path = new StringBuilder();
path.append(filePath);
path.append(File.separator);
path.append(fileName);
path.append(".");
path.append(type);
boolean flag = ImageIO.write(bufferedImage, type, new File(path.toString()));
bufferedImage.flush();
if (Objects.equals(Boolean.FALSE, flag)) {
return new ResponseResult<>(500);
}
ResponseResult<String> responseResult = ResponseResult.success();
responseResult.setData(path.toString());
return responseResult;
} catch (Exception e) {
LOGGER.error("上传图片异常,上传的路径为:[{}]", filePath, e);
} finally {
IOUtils.closeQuietly(byteArrayInputStream);
}
return new ResponseResult<>(500);
}
public static String choosePrictureContent(String uploadContent) {
if (org.apache.commons.lang3.StringUtils.indexOf(uploadContent, ";base64,")>0) {
uploadContent = org.apache.commons.lang3.StringUtils.substringAfter(uploadContent, ";base64,");
}
return uploadContent;
}
/**
* 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;
}
}