cn.orionsec.kit.lang.utils.io

Class FileReaders

java.lang.Object

cn.orionsec.kit.lang.utils.io.FileReaders

public class FileReaders
extends Object

文件读取工具类

Since:

2020/10/27 14:39

Version:

1.0.0

Author:

Jiahang Li

Method Summary

Modifier and Type	Method and Description
static void	byteArrayConsumer(File file, byte[] bytes, IntConsumer c) byte[]消费者
static void	byteArrayConsumer(String file, byte[] bytes, IntConsumer c)
static void	byteArrayConsumerFast(File file, byte[] bytes, IntConsumer c)
static void	byteArrayConsumerFast(Path file, byte[] bytes, IntConsumer c) byte[]消费者
static void	byteArrayConsumerFast(String file, byte[] bytes, IntConsumer c)
static ByteArrayIterator	byteArrayIterator(File file, byte[] buffer) byte[]迭代器
static ByteArrayIterator	byteArrayIterator(String file, byte[] buffer)
static ByteArrayIterator	byteArrayIteratorFast(File file, byte[] buffer)
static ByteArrayIterator	byteArrayIteratorFast(Path file, byte[] buffer) byte[]迭代器
static ByteArrayIterator	byteArrayIteratorFast(String file, byte[] buffer)
static void	lineConsumer(File file, Consumer<String> c)
static void	lineConsumer(File file, String charset, Consumer<String> c) 行消费者
static void	lineConsumer(String file, Consumer<String> c)
static void	lineConsumer(String file, String charset, Consumer<String> c)
static void	lineConsumerFast(File file, Consumer<String> c)
static void	lineConsumerFast(File file, String charset, Consumer<String> c)
static void	lineConsumerFast(Path file, Charset charset, Consumer<String> c) 行消费者
static void	lineConsumerFast(Path file, Consumer<String> c)
static void	lineConsumerFast(String file, Consumer<String> c)
static void	lineConsumerFast(String file, String charset, Consumer<String> c)
static LineIterator	lineIterator(File file)
static LineIterator	lineIterator(File file, String charset) 行迭代器
static LineIterator	lineIterator(String file)
static LineIterator	lineIterator(String file, String charset)
static LineIterator	lineIteratorFast(File file)
static LineIterator	lineIteratorFast(File file, String charset)
static LineIterator	lineIteratorFast(Path file)
static LineIterator	lineIteratorFast(Path file, Charset charset) 行迭代器
static LineIterator	lineIteratorFast(String file)
static LineIterator	lineIteratorFast(String file, String charset)
static int	read(File file, byte[] bytes)
static int	read(File file, byte[] bytes, long skip) 读取文件
static byte[]	read(RandomAccessFile reader, long offset)
static byte[]	read(RandomAccessFile reader, long offset, long end) 从偏移量开始读取,读取到指定位置
static int	read(String file, byte[] bytes)
static int	read(String file, byte[] bytes, long skip)
static byte[]	readAllBytes(File file)
static byte[]	readAllBytes(String file)
static byte[]	readAllBytesFast(File file)
static byte[]	readAllBytesFast(Path path) 读取文件所有字节
static byte[]	readAllBytesFast(String file)
static String	readAllLines(RandomAccessFile reader)
static String	readAllLines(RandomAccessFile reader, String charset) 从当前偏移量读取到最后一行
static String	readLine(File file)
static String	readLine(File file, int skipLine)
static String	readLine(File file, long skip)
static String	readLine(File file, long skip, String charset) 读取一行
static String	readLine(File file, String charset)
static String	readLine(RandomAccessFile reader)
static String	readLine(RandomAccessFile reader, String charset) 从当前偏移量读取一行
static String	readLine(String file)
static String	readLine(String file, int skipLine)
static String	readLine(String file, int skipLine, String charset) 读取一行
static String	readLine(String file, long skip)
static String	readLine(String file, long skip, String charset)
static String	readLine(String file, String charset)
static List<String>	readLines(File file)
static List<String>	readLines(File file, int lines)
static List<String>	readLines(File file, int skipLine, int lines)
static List<String>	readLines(File file, int skipLine, int lines, String charset) 读取多行
static List<String>	readLines(File file, int lines, String charset)
static List<String>	readLines(File file, long skip)
static List<String>	readLines(File file, long skip, int lines)
static List<String>	readLines(File file, long skip, int lines, String charset) 读取多行
static List<String>	readLines(String file)
static List<String>	readLines(String file, int lines)
static List<String>	readLines(String file, int skipLine, int lines)
static List<String>	readLines(String file, int skipLine, int lines, String charset)
static List<String>	readLines(String file, int lines, String charset)
static List<String>	readLines(String file, long skip)
static List<String>	readLines(String file, long skip, int lines)
static List<String>	readLines(String file, long skip, int lines, String charset)
static List<String>	readLinesFast(File file)
static List<String>	readLinesFast(File file, String charset)
static List<String>	readLinesFast(Path file)
static List<String>	readLinesFast(Path file, Charset charset) 读取文件所有行
static List<String>	readLinesFast(String file)
static List<String>	readLinesFast(String file, String charset)
static String	readTailLines(RandomAccessFile reader, int line)
static String	readTailLines(RandomAccessFile reader, String charset, int line) 读取文件最后几行
static long	readTailLinesSeek(RandomAccessFile reader, int line) 读取文件尾部行的seek

Methods inherited from class java.lang.Object

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

Method Detail

read

public static byte[] read(RandomAccessFile reader,
                          long offset)
                   throws IOException

Throws:

IOException

read

public static byte[] read(RandomAccessFile reader,
                          long offset,
                          long end)
                   throws IOException

从偏移量开始读取,读取到指定位置

Parameters:

reader - 流

offset - 偏移量

end - 结束位置

Returns:

bytes

Throws:

IOException - IO

readLine

public static String readLine(RandomAccessFile reader)
                       throws IOException

Throws:

IOException

readLine

public static String readLine(RandomAccessFile reader,
                              String charset)
                       throws IOException

从当前偏移量读取一行

Parameters:

reader - reader

charset - 编码

Returns:

行

Throws:

IOException - IO

readAllLines

public static String readAllLines(RandomAccessFile reader)
                           throws IOException

Throws:

IOException

readAllLines

public static String readAllLines(RandomAccessFile reader,
                                  String charset)
                           throws IOException

从当前偏移量读取到最后一行

Parameters:

reader - 输入流

charset - charset

Returns:

lines

Throws:

IOException - I/O异常

readTailLinesSeek

public static long readTailLinesSeek(RandomAccessFile reader,
                                     int line)
                              throws IOException

读取文件尾部行的seek

Parameters:

reader - reader

line - 最后几行

Returns:

seek

Throws:

IOException

readTailLines

public static String readTailLines(RandomAccessFile reader,
                                   int line)
                            throws IOException

Throws:

IOException

readTailLines

public static String readTailLines(RandomAccessFile reader,
                                   String charset,
                                   int line)
                            throws IOException

读取文件最后几行

Parameters:

reader - 输入流

charset - charset

line - line

Returns:

lines

Throws:

IOException - I/O异常

read

public static int read(String file,
                       byte[] bytes)

read

public static int read(File file,
                       byte[] bytes)

read

public static int read(String file,
                       byte[] bytes,
                       long skip)

read

public static int read(File file,
                       byte[] bytes,
                       long skip)

读取文件

Parameters:

file - 文件

bytes - 读取的数组

skip - 跳过的长度

Returns:

读取的长度

readAllBytes

public static byte[] readAllBytes(String file)

readAllBytes

public static byte[] readAllBytes(File file)

readLine

public static String readLine(String file)

readLine

public static String readLine(File file)

readLine

public static String readLine(String file,
                              String charset)

readLine

public static String readLine(File file,
                              String charset)

readLine

public static String readLine(String file,
                              long skip)

readLine

public static String readLine(File file,
                              long skip)

readLine

public static String readLine(String file,
                              long skip,
                              String charset)

readLine

public static String readLine(File file,
                              long skip,
                              String charset)

读取一行

Parameters:

file - 文件

skip - 偏移量

charset - 编码格式

Returns:

行

readLine

public static String readLine(String file,
                              int skipLine)

readLine

public static String readLine(File file,
                              int skipLine)

readLine

public static String readLine(String file,
                              int skipLine,
                              String charset)

读取一行

Parameters:

file - 文件

skipLine - 偏移行

charset - 编码格式

Returns:

行

readLines

public static List<String> readLines(File file)

readLines

public static List<String> readLines(String file)

readLines

public static List<String> readLines(File file,
                                     int lines)

readLines

public static List<String> readLines(String file,
                                     int lines)

readLines

public static List<String> readLines(String file,
                                     int lines,
                                     String charset)

readLines

public static List<String> readLines(File file,
                                     int lines,
                                     String charset)

readLines

public static List<String> readLines(File file,
                                     long skip)

readLines

public static List<String> readLines(String file,
                                     long skip)

readLines

public static List<String> readLines(File file,
                                     long skip,
                                     int lines)

readLines

public static List<String> readLines(String file,
                                     long skip,
                                     int lines)

readLines

public static List<String> readLines(String file,
                                     long skip,
                                     int lines,
                                     String charset)

readLines

public static List<String> readLines(File file,
                                     long skip,
                                     int lines,
                                     String charset)

读取多行

Parameters:

file - 文件

skip - 文件偏移量

lines - 读取多少行 <= 0 所有行

charset - 编码格式

Returns:

行

readLines

public static List<String> readLines(File file,
                                     int skipLine,
                                     int lines)

readLines

public static List<String> readLines(String file,
                                     int skipLine,
                                     int lines)

readLines

public static List<String> readLines(String file,
                                     int skipLine,
                                     int lines,
                                     String charset)

readLines

public static List<String> readLines(File file,
                                     int skipLine,
                                     int lines,
                                     String charset)

读取多行

Parameters:

file - 文件

skipLine - 文件偏移行

lines - 读取多少行 <=0 所有行

charset - 编码格式

Returns:

行

lineConsumer

public static void lineConsumer(String file,
                                Consumer<String> c)

lineConsumer

public static void lineConsumer(File file,
                                Consumer<String> c)

lineConsumer

public static void lineConsumer(String file,
                                String charset,
                                Consumer<String> c)

lineConsumer

public static void lineConsumer(File file,
                                String charset,
                                Consumer<String> c)

行消费者

Parameters:

file - file

charset - charset

c - consumer

lineIterator

public static LineIterator lineIterator(String file)

lineIterator

public static LineIterator lineIterator(File file)

lineIterator

public static LineIterator lineIterator(String file,
                                        String charset)

lineIterator

public static LineIterator lineIterator(File file,
                                        String charset)

行迭代器

Parameters:

file - file

charset - charset

Returns:

LineIterator

byteArrayConsumer

public static void byteArrayConsumer(String file,
                                     byte[] bytes,
                                     IntConsumer c)

byteArrayConsumer

public static void byteArrayConsumer(File file,
                                     byte[] bytes,
                                     IntConsumer c)

byte[]消费者

Parameters:

file - file

bytes - bytes

c - consumer

byteArrayIterator

public static ByteArrayIterator byteArrayIterator(String file,
                                                  byte[] buffer)

byteArrayIterator

public static ByteArrayIterator byteArrayIterator(File file,
                                                  byte[] buffer)

byte[]迭代器

Parameters:

file - file

buffer - buffer

Returns:

ByteArrayIterator

readAllBytesFast

public static byte[] readAllBytesFast(String file)

readAllBytesFast

public static byte[] readAllBytesFast(File file)

readAllBytesFast

public static byte[] readAllBytesFast(Path path)

读取文件所有字节

Parameters:

path - path

Returns:

bytes

readLinesFast

public static List<String> readLinesFast(String file)

readLinesFast

public static List<String> readLinesFast(File file)

readLinesFast

public static List<String> readLinesFast(Path file)

readLinesFast

public static List<String> readLinesFast(String file,
                                         String charset)

readLinesFast

public static List<String> readLinesFast(File file,
                                         String charset)

readLinesFast

public static List<String> readLinesFast(Path file,
                                         Charset charset)

读取文件所有行

Parameters:

file - 文件

charset - 编码

Returns:

行

lineConsumerFast

public static void lineConsumerFast(String file,
                                    Consumer<String> c)

lineConsumerFast

public static void lineConsumerFast(File file,
                                    Consumer<String> c)

lineConsumerFast

public static void lineConsumerFast(Path file,
                                    Consumer<String> c)

lineConsumerFast

public static void lineConsumerFast(String file,
                                    String charset,
                                    Consumer<String> c)

lineConsumerFast

public static void lineConsumerFast(File file,
                                    String charset,
                                    Consumer<String> c)

lineConsumerFast

public static void lineConsumerFast(Path file,
                                    Charset charset,
                                    Consumer<String> c)

行消费者

Parameters:

file - file

charset - charset

c - consumer

lineIteratorFast

public static LineIterator lineIteratorFast(String file)

lineIteratorFast

public static LineIterator lineIteratorFast(File file)

lineIteratorFast

public static LineIterator lineIteratorFast(Path file)

lineIteratorFast

public static LineIterator lineIteratorFast(String file,
                                            String charset)

lineIteratorFast

public static LineIterator lineIteratorFast(File file,
                                            String charset)

lineIteratorFast

public static LineIterator lineIteratorFast(Path file,
                                            Charset charset)

行迭代器

Parameters:

file - file

charset - charset

Returns:

LineIterator

byteArrayConsumerFast

public static void byteArrayConsumerFast(String file,
                                         byte[] bytes,
                                         IntConsumer c)

byteArrayConsumerFast

public static void byteArrayConsumerFast(File file,
                                         byte[] bytes,
                                         IntConsumer c)

byteArrayConsumerFast

public static void byteArrayConsumerFast(Path file,
                                         byte[] bytes,
                                         IntConsumer c)

byte[]消费者

Parameters:

file - file

bytes - bytes

c - consumer

byteArrayIteratorFast

public static ByteArrayIterator byteArrayIteratorFast(String file,
                                                      byte[] buffer)

byteArrayIteratorFast

public static ByteArrayIterator byteArrayIteratorFast(File file,
                                                      byte[] buffer)

byteArrayIteratorFast

public static ByteArrayIterator byteArrayIteratorFast(Path file,
                                                      byte[] buffer)

byte[]迭代器

Parameters:

file - file

buffer - buffer

Returns:

ByteArrayIterator