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| | | import java.io.File;
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| | | import java.io.IOException;
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| | | import java.nio.file.Paths;
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| | | import java.util.Objects;
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| | | import org.apache.commons.io.FilenameUtils;
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| | | import org.springframework.web.multipart.MultipartFile;
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| | | import com.ruoyi.common.constant.Constants;
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| | | import com.ruoyi.common.exception.file.FileSizeLimitExceededException;
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| | | import com.ruoyi.common.exception.file.InvalidExtensionException;
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| | | import com.ruoyi.common.utils.DateUtils;
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| | | import com.ruoyi.common.utils.IdUtils;
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| | | import com.ruoyi.common.utils.StringUtils;
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| | | import com.ruoyi.common.utils.uuid.Seq;
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| | | import com.ruoyi.framework.config.RuoYiConfig;
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| | |
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| | | /**
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| | | * 文件上传工具类
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| | | * |
| | | *
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| | | * @author ruoyi
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| | | */
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| | | public class FileUploadUtils
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| | |
| | | /**
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| | | * 默认大小 50M
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| | | */
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| | | public static final long DEFAULT_MAX_SIZE = 50 * 1024 * 1024;
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| | | public static final long DEFAULT_MAX_SIZE = 50 * 1024 * 1024L;
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| | |
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| | | /**
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| | | * 默认的文件名最大长度 100
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| | |
| | | *
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| | | * @param baseDir 相对应用的基目录
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| | | * @param file 上传的文件
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| | | * @param extension 上传文件类型
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| | | * @param allowedExtension 上传文件类型
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| | | * @return 返回上传成功的文件名
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| | | * @throws FileSizeLimitExceededException 如果超出最大大小
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| | | * @throws FileNameLengthLimitExceededException 文件名太长
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| | |
| | | throws FileSizeLimitExceededException, IOException, FileNameLengthLimitExceededException,
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| | | InvalidExtensionException
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| | | {
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| | | int fileNamelength = file.getOriginalFilename().length();
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| | | if (fileNamelength > FileUploadUtils.DEFAULT_FILE_NAME_LENGTH)
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| | | int fileNameLength = Objects.requireNonNull(file.getOriginalFilename()).length();
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| | | if (fileNameLength > FileUploadUtils.DEFAULT_FILE_NAME_LENGTH)
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| | | {
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| | | throw new FileNameLengthLimitExceededException(FileUploadUtils.DEFAULT_FILE_NAME_LENGTH);
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| | | }
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| | |
| | |
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| | | String fileName = extractFilename(file);
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| | |
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| | | File desc = getAbsoluteFile(baseDir, fileName);
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| | | file.transferTo(desc);
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| | | String pathFileName = getPathFileName(baseDir, fileName);
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| | | return pathFileName;
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| | | String absPath = getAbsoluteFile(baseDir, fileName).getAbsolutePath();
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| | | file.transferTo(Paths.get(absPath));
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| | | return getPathFileName(baseDir, fileName);
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| | | }
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| | |
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| | | /**
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| | |
| | | */
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| | | public static final String extractFilename(MultipartFile file)
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| | | {
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| | | String fileName = file.getOriginalFilename();
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| | | String extension = getExtension(file);
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| | | fileName = DateUtils.datePath() + "/" + IdUtils.fastUUID() + "." + extension;
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| | | return fileName;
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| | | return StringUtils.format("{}/{}_{}.{}", DateUtils.datePath(),
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| | | FilenameUtils.getBaseName(file.getOriginalFilename()), Seq.getId(Seq.uploadSeqType), getExtension(file));
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| | | }
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| | |
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| | | private static final File getAbsoluteFile(String uploadDir, String fileName) throws IOException
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| | | public static final File getAbsoluteFile(String uploadDir, String fileName) throws IOException
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| | | {
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| | | File desc = new File(uploadDir + File.separator + fileName);
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| | |
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| | |
| | | return desc;
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| | | }
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| | |
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| | | private static final String getPathFileName(String uploadDir, String fileName) throws IOException
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| | | public static final String getPathFileName(String uploadDir, String fileName) throws IOException
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| | | {
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| | | int dirLastIndex = RuoYiConfig.getProfile().length() + 1;
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| | | String currentDir = StringUtils.substring(uploadDir, dirLastIndex);
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| | | String pathFileName = Constants.RESOURCE_PREFIX + "/" + currentDir + "/" + fileName;
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| | | return pathFileName;
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| | | // return Constants.RESOURCE_PREFIX + "/" + currentDir + "/" + fileName;
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| | | return currentDir + "/" + fileName;
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| | | }
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| | |
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| | | /**
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| | |
| | | throws FileSizeLimitExceededException, InvalidExtensionException
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| | | {
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| | | long size = file.getSize();
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| | | if (DEFAULT_MAX_SIZE != -1 && size > DEFAULT_MAX_SIZE)
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| | | if (size > DEFAULT_MAX_SIZE)
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| | | {
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| | | throw new FileSizeLimitExceededException(DEFAULT_MAX_SIZE / 1024 / 1024);
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| | | }
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| | |
| | | throw new InvalidExtensionException(allowedExtension, extension, fileName);
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| | | }
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| | | }
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| | |
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| | | }
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| | |
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| | | /**
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| | |
| | |
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| | | /**
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| | | * 获取文件名的后缀
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| | | * |
| | | *
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| | | * @param file 表单文件
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| | | * @return 后缀名
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| | | */
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| | |
| | | String extension = FilenameUtils.getExtension(file.getOriginalFilename());
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| | | if (StringUtils.isEmpty(extension))
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| | | {
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| | | extension = MimeTypeUtils.getExtension(file.getContentType());
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| | | extension = MimeTypeUtils.getExtension(Objects.requireNonNull(file.getContentType()));
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| | | }
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| | | return extension;
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| | | }
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| | | } |
| | | }
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