Module develop.toolkit.base

Package develop.toolkit.base.utils

Class FileAdvice

java.lang.Object

develop.toolkit.base.utils.FileAdvice

public abstract class FileAdvice
extends Object

Author:

qiushui on 2021-03-15.

Constructor Summary

Constructors

Constructor	Description
FileAdvice()

Method Summary

Modifier and Type	Method	Description
static List<Path>	files(Path path, Predicate<Path> predicate)	遍历目录 找到所有满足条件的文件
static long	sliceBytes(int bufferSize, long offset, long chunkSize, File file, OutputStream out)	截取文件中某一段的字节数据
static void	touch(Path path)
static void	write(Path filePath, CharSequence text, Charset charset, boolean append)
static void	write(Path filePath, Iterable<? extends CharSequence> lines, Charset charset, boolean append)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

FileAdvice

public FileAdvice()

Method Details

write

public static void write(Path filePath,
 CharSequence text,
 Charset charset,
 boolean append)

write

public static void write(Path filePath,
 Iterable<? extends CharSequence> lines,
 Charset charset,
 boolean append)

touch

public static void touch(Path path)
                  throws IOException

Throws:

IOException

files

public static List<Path> files(Path path,
 Predicate<Path> predicate)

遍历目录 找到所有满足条件的文件

sliceBytes

public static long sliceBytes(int bufferSize,
 long offset,
 long chunkSize,
 File file,
 OutputStream out)
                       throws IOException

截取文件中某一段的字节数据

Parameters:

bufferSize - 缓冲区大小

offset - 偏移量

chunkSize - 截取块大小

file - 文件 内部会采用随机读取文件RandomAccessFile

out - 输出流

Throws:

IOException - IO异常