¶Ô±ÈÐÂÎļþ |
| | |
| | | package com.ruoyi.common.utils.file; |
| | | |
| | | import java.io.File; |
| | | import java.io.IOException; |
| | | import org.apache.commons.io.FilenameUtils; |
| | | import org.springframework.web.multipart.MultipartFile; |
| | | 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.security.Md5Utils; |
| | | import com.ruoyi.framework.config.RuoYiConfig; |
| | | |
| | | /** |
| | | * æä»¶ä¸ä¼ å·¥å
·ç±» |
| | | * |
| | | * @author ruoyi |
| | | */ |
| | | public class FileUploadUtils |
| | | { |
| | | /** |
| | | * é»è®¤å¤§å° 50M |
| | | */ |
| | | public static final long DEFAULT_MAX_SIZE = 50 * 1024 * 1024; |
| | | |
| | | /** |
| | | * é»è®¤çæä»¶åæå¤§é¿åº¦ 100 |
| | | */ |
| | | public static final int DEFAULT_FILE_NAME_LENGTH = 100; |
| | | |
| | | /** |
| | | * é»è®¤ä¸ä¼ çå°å |
| | | */ |
| | | private static String defaultBaseDir = RuoYiConfig.getProfile(); |
| | | |
| | | private static int counter = 0; |
| | | |
| | | public static void setDefaultBaseDir(String defaultBaseDir) |
| | | { |
| | | FileUploadUtils.defaultBaseDir = defaultBaseDir; |
| | | } |
| | | |
| | | public static String getDefaultBaseDir() |
| | | { |
| | | return defaultBaseDir; |
| | | } |
| | | |
| | | /** |
| | | * 以é»è®¤é
ç½®è¿è¡æä»¶ä¸ä¼ |
| | | * |
| | | * @param file ä¸ä¼ çæä»¶ |
| | | * @return æä»¶åç§° |
| | | * @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); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * æ ¹æ®æä»¶è·¯å¾ä¸ä¼ |
| | | * |
| | | * @param baseDir ç¸å¯¹åºç¨çåºç®å½ |
| | | * @param file ä¸ä¼ çæä»¶ |
| | | * @return æä»¶åç§° |
| | | * @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); |
| | | } |
| | | } |
| | | |
| | | /** |
| | | * æä»¶ä¸ä¼ |
| | | * |
| | | * @param baseDir ç¸å¯¹åºç¨çåºç®å½ |
| | | * @param file ä¸ä¼ çæä»¶ |
| | | * @param extension ä¸ä¼ æä»¶ç±»å |
| | | * @return è¿åä¸ä¼ æåçæä»¶å |
| | | * @throws FileSizeLimitExceededException 妿è¶
åºæå¤§å¤§å° |
| | | * @throws FileNameLengthLimitExceededException æä»¶åå¤ªé¿ |
| | | * @throws IOException æ¯å¦è¯»åæä»¶åºéæ¶ |
| | | * @throws InvalidExtensionException æä»¶æ ¡éªå¼å¸¸ |
| | | */ |
| | | public static final String upload(String baseDir, 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); |
| | | |
| | | String fileName = extractFilename(file); |
| | | |
| | | File desc = getAbsoluteFile(baseDir, fileName); |
| | | file.transferTo(desc); |
| | | String pathFileName = getPathFileName(baseDir, fileName); |
| | | return pathFileName; |
| | | } |
| | | |
| | | /** |
| | | * ç¼ç æä»¶å |
| | | */ |
| | | public static final String extractFilename(MultipartFile file) |
| | | { |
| | | String fileName = file.getOriginalFilename(); |
| | | String extension = getExtension(file); |
| | | fileName = DateUtils.datePath() + "/" + encodingFilename(fileName) + "." + extension; |
| | | return fileName; |
| | | } |
| | | |
| | | private static final File getAbsoluteFile(String uploadDir, String fileName) throws IOException |
| | | { |
| | | File desc = new File(uploadDir + File.separator + fileName); |
| | | |
| | | if (!desc.getParentFile().exists()) |
| | | { |
| | | desc.getParentFile().mkdirs(); |
| | | } |
| | | if (!desc.exists()) |
| | | { |
| | | desc.createNewFile(); |
| | | } |
| | | return desc; |
| | | } |
| | | |
| | | private static final String getPathFileName(String uploadDir, String fileName) throws IOException |
| | | { |
| | | int dirLastIndex = RuoYiConfig.getProfile().length() + 1; |
| | | String currentDir = StringUtils.substring(uploadDir, dirLastIndex); |
| | | String pathFileName = Constants.RESOURCE_PREFIX + "/" + currentDir + "/" + fileName; |
| | | return pathFileName; |
| | | } |
| | | |
| | | /** |
| | | * ç¼ç æä»¶å |
| | | */ |
| | | private static final String encodingFilename(String fileName) |
| | | { |
| | | fileName = fileName.replace("_", " "); |
| | | fileName = Md5Utils.hash(fileName + System.nanoTime() + counter++); |
| | | return fileName; |
| | | } |
| | | |
| | | /** |
| | | * æä»¶å¤§å°æ ¡éª |
| | | * |
| | | * @param file ä¸ä¼ çæä»¶ |
| | | * @return |
| | | * @throws FileSizeLimitExceededException 妿è¶
åºæå¤§å¤§å° |
| | | * @throws InvalidExtensionException |
| | | */ |
| | | public static final void assertAllowed(MultipartFile file, String[] allowedExtension) |
| | | throws FileSizeLimitExceededException, InvalidExtensionException |
| | | { |
| | | long size = file.getSize(); |
| | | if (DEFAULT_MAX_SIZE != -1 && 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 |
| | | { |
| | | throw new InvalidExtensionException(allowedExtension, extension, fileName); |
| | | } |
| | | } |
| | | |
| | | } |
| | | |
| | | /** |
| | | * 夿MIMEç±»åæ¯å¦æ¯å
许çMIMEç±»å |
| | | * |
| | | * @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; |
| | | } |
| | | |
| | | /** |
| | | * è·åæä»¶åçåç¼ |
| | | * |
| | | * @param file 表åæä»¶ |
| | | * @return åç¼å |
| | | */ |
| | | public static final String getExtension(MultipartFile file) |
| | | { |
| | | String extension = FilenameUtils.getExtension(file.getOriginalFilename()); |
| | | if (StringUtils.isEmpty(extension)) |
| | | { |
| | | extension = MimeTypeUtils.getExtension(file.getContentType()); |
| | | } |
| | | return extension; |
| | | } |
| | | } |