上传文件至 'op-modules/op-quality/src/main/java/com/op/quality/utils'

op-modules/op-quality/src/main/java/com/op/quality/utils/FileUploadUtils.java

@@ -0,0 +1,158 @@
+package com.op.quality.utils;
+
+import com.op.common.core.exception.file.FileException;
+import com.op.common.core.exception.file.FileNameLengthLimitExceededException;
+import com.op.common.core.exception.file.FileSizeLimitExceededException;
+import com.op.common.core.exception.file.InvalidExtensionException;
+import com.op.common.core.utils.DateUtils;
+import com.op.common.core.utils.StringUtils;
+import com.op.common.core.utils.file.FileTypeUtils;
+import com.op.common.core.utils.file.MimeTypeUtils;
+import com.op.common.core.utils.uuid.Seq;
+import org.apache.commons.io.FilenameUtils;
+import org.springframework.web.multipart.MultipartFile;
+
+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 OP
+ */
+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;
+
+	/**
+	 * 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 (FileException fe) {
+			throw new IOException(fe.getDefaultMessage(), fe);
+		} 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(fileName);
+	}
+
+	/**
+	 * 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),
+				FileTypeUtils.getExtension(file));
+	}
+
+	private 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.isAbsolute() ? desc : desc.getAbsoluteFile();
+	}
+
+	private static final String getPathFileName(String fileName) throws IOException {
+		String pathFileName = "/" + fileName;
+		return pathFileName;
+	}
+
+	/**
+	 * 文件大小校验
+	 *
+	 * @param file 上传的文件
+	 * @throws FileSizeLimitExceededException 如果超出最大大小
+	 * @throws InvalidExtensionException      文件校验异常
+	 */
+	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 = FileTypeUtils.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        上传文件类型
+	 * @param allowedExtension 允许上传文件类型
+	 * @return true/false
+	 */
+	public static final boolean isAllowedExtension(String extension, String[] allowedExtension) {
+		for (String str : allowedExtension) {
+			if (str.equalsIgnoreCase(extension)) {
+				return true;
+			}
+		}
+		return false;
+	}
+}