文件工具类

类名： FileUtil

list

/**
 * 扫描目录下的文件
 *
 * @param path 路径
 * @return 文件集合
 */
FileUtil.list(String path);

list

/**
 * 扫描目录下的文件
 *
 * @param path            路径
 * @param fileNamePattern 文件名 * 号
 * @return 文件集合
 */
FileUtil.list(String path, String fileNamePattern);

list

/**
 * 扫描目录下的文件
 *
 * @param path   路径
 * @param filter 文件过滤
 * @return 文件集合
 */
FileUtil.list(String path, FileFilter filter);

list

/**
 * 扫描目录下的文件
 *
 * @param file 文件
 * @return 文件集合
 */
FileUtil.list(File file);

list

/**
 * 扫描目录下的文件
 *
 * @param file            文件
 * @param fileNamePattern "xxx*", "*xxx", "*xxx*" and "xxx*yyy"
 * @return 文件集合
 */
FileUtil.list(File file, String fileNamePattern);

list

/**
 * 扫描目录下的文件
 *
 * @param file             文件
 * @param fileNamePatterns "xxx*", "*xxx", "*xxx*" and "xxx*yyy"
 * @return 文件集合
 */
FileUtil.list(File file, String fileNamePatterns);

list

/**
 * 扫描目录下的文件
 *
 * @param file   文件
 * @param filter 文件过滤
 * @return 文件集合
 */
FileUtil.list(File file, FileFilter filter);

getFilename

/**
 * 获取文件后缀名
 *
 * @param path 文件路径
 * @return {String}
 */
FileUtil.getFilename(String path);

getFileExtension

/**
 * 获取文件后缀名
 *
 * @param fullName 文件全名
 * @return {String}
 */
FileUtil.getFileExtension(String fullName);

getPathWithoutExtension

/**
 * 获取文件名，去除后缀名
 *
 * @param path 文件
 * @return {String}
 */
FileUtil.getPathWithoutExtension(String path);

getTempDirPath

/**
 * Returns the path to the system temporary directory.
 *
 * @return the path to the system temporary directory.
 */
FileUtil.getTempDirPath();

toTempDirPath

/**
 * 拼接临时文件目录.
 *
 * @return 临时文件目录.
 */
FileUtil.toTempDirPath(String subDirFile);

getTempDir

/**
 * Returns a {@link File} representing the system temporary directory.
 *
 * @return the system temporary directory.
 */
FileUtil.getTempDir();

toTempDir

/**
 * 拼接临时文件目录.
 *
 * @return the system temporary directory.
 */
FileUtil.toTempDir(String subDirFile);

readToString

/**
 * Reads the contents of a file into a String.
 * The file is always closed.
 *
 * @param file the file to read, must not be {@code null}
 * @return the file contents, never {@code null}
 */
FileUtil.readToString(File file);

readToString

/**
 * Reads the contents of a file into a String.
 * The file is always closed.
 *
 * @param file     the file to read, must not be {@code null}
 * @param encoding the encoding to use, {@code null} means platform default
 * @return the file contents, never {@code null}
 */
FileUtil.readToString(File file, Charset encoding);

readToByteArray

/**
 * Reads the contents of a file into a String.
 * The file is always closed.
 *
 * @param file the file to read, must not be {@code null}
 * @return the file contents, never {@code null}
 */
FileUtil.readToByteArray(File file);

writeToFile

/**
 * Writes a String to a file creating the file if it does not exist.
 *
 * @param file the file to write
 * @param data the content to write to the file
 */
FileUtil.writeToFile(File file, String data);

writeToFile

/**
 * Writes a String to a file creating the file if it does not exist.
 *
 * @param file   the file to write
 * @param data   the content to write to the file
 * @param append if {@code true}, then the String will be added to the
 *               end of the file rather than overwriting
 */
FileUtil.writeToFile(File file, String data, boolean append);

writeToFile

/**
 * Writes a String to a file creating the file if it does not exist.
 *
 * @param file     the file to write
 * @param data     the content to write to the file
 * @param encoding the encoding to use, {@code null} means platform default
 */
FileUtil.writeToFile(File file, String data, Charset encoding);

writeToFile

/**
 * Writes a String to a file creating the file if it does not exist.
 *
 * @param file     the file to write
 * @param data     the content to write to the file
 * @param encoding the encoding to use, {@code null} means platform default
 * @param append   if {@code true}, then the String will be added to the
 *                 end of the file rather than overwriting
 */
FileUtil.writeToFile(File file, String data, Charset encoding, boolean append);

toFile

/**
 * 转成file
 *
 * @param multipartFile MultipartFile
 * @param file          File
 */
FileUtil.toFile(MultipartFile multipartFile, File file);

toFile

/**
 * 转成file
 *
 * @param in   InputStream
 * @param file File
 */
FileUtil.toFile(InputStream in, File file);

moveFile

/**
 * Moves a file.
 * <p>
 * When the destination file is on another file system, do a "copy and delete".
 *
 * @param srcFile  the file to be moved
 * @param destFile the destination file
 * @throws NullPointerException if source or destination is {@code null}
 * @throws IOException          if source or destination is invalid
 * @throws IOException          if an IO error occurs moving the file
 */
FileUtil.moveFile(File srcFile, File destFile);

deleteQuietly

/**
 * Deletes a file, never throwing an exception. If file is a directory, delete it and all sub-directories.
 * <p>
 * The difference between File.delete() and this method are:
 * <ul>
 * <li>A directory to be deleted does not have to be empty.</li>
 * <li>No exceptions are thrown when a file or directory cannot be deleted.</li>
 * </ul>
 *
 * @param file file or directory to delete, can be {@code null}
 * @return {@code true} if the file or directory was deleted, otherwise
 * {@code false}
 */
FileUtil.deleteQuietly(File file);

readLines

/**
 * NIO 按行读取文件
 *
 * @param path 文件路径
 * @return 行列表
 */
FileUtil.readLines(String path);

readLines

/**
 * NIO 按行读取文件
 *
 * @param file 文件
 * @return 行列表
 */
FileUtil.readLines(File file);

readLines

/**
 * NIO 按行读取文件
 *
 * @param path 文件路径
 * @return 行列表
 */
FileUtil.readLines(Path path);

readLines

/**
 * NIO 按行读取文件
 *
 * @param path 文件路径
 * @param cs   字符集
 * @return 行列表
 */
FileUtil.readLines(String path, Charset cs);

readLines

/**
 * NIO 按行读取文件
 *
 * @param file 文件
 * @param cs   字符集
 * @return 行列表
 */
FileUtil.readLines(File file, Charset cs);

readLines

/**
 * NIO 按行读取文件
 *
 * @param path 文件路径
 * @param cs   字符集
 * @return 行列表
 */
FileUtil.readLines(Path path, Charset cs);

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