org.skfiy.util

类 FileCopyUtils

java.lang.Object

org.skfiy.util.FileCopyUtils

public abstract class FileCopyUtils
extends Object

Simple utility methods for file and stream copying. All copy methods use a block size of 4096 bytes, and close all affected streams when done. A variation of the copy methods from this class that leave streams open can be found in StreamUtils.

Mainly for use within the framework, but also useful for application code.

从以下版本开始:

06.10.2003

作者:

Juergen Hoeller

另请参阅:

StreamUtils

字段概要

字段

限定符和类型	字段和说明
static int	BUFFER_SIZE

构造器概要

构造器

构造器和说明
FileCopyUtils()

方法概要

方法

限定符和类型	方法和说明
static void	copy(byte[] in, File out) Copy the contents of the given byte array to the given output File.
static void	copy(byte[] in, OutputStream out) Copy the contents of the given byte array to the given OutputStream.
static int	copy(File in, File out) Copy the contents of the given input File to the given output File.
static int	copy(InputStream in, OutputStream out) Copy the contents of the given InputStream to the given OutputStream.
static int	copy(Reader in, Writer out) Copy the contents of the given Reader to the given Writer.
static void	copy(String in, Writer out) Copy the contents of the given String to the given output Writer.
static byte[]	copyToByteArray(File in) Copy the contents of the given input File into a new byte array.
static byte[]	copyToByteArray(InputStream in) Copy the contents of the given InputStream into a new byte array.
static String	copyToString(Reader in) Copy the contents of the given Reader into a String.

从类继承的方法 java.lang.Object

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

字段详细资料

BUFFER_SIZE

public static final int BUFFER_SIZE

另请参阅:

常量字段值

构造器详细资料

FileCopyUtils

public FileCopyUtils()

方法详细资料

copy

public static int copy(File in,
       File out)
                throws IOException

Copy the contents of the given input File to the given output File.

参数:

in - the file to copy from

out - the file to copy to

返回:

the number of bytes copied

抛出:

IOException - in case of I/O errors

copy

public static void copy(byte[] in,
        File out)
                 throws IOException

Copy the contents of the given byte array to the given output File.

参数:

in - the byte array to copy from

out - the file to copy to

抛出:

IOException - in case of I/O errors

copyToByteArray

public static byte[] copyToByteArray(File in)
                              throws IOException

Copy the contents of the given input File into a new byte array.

参数:

in - the file to copy from

返回:

the new byte array that has been copied to

抛出:

IOException - in case of I/O errors

copy

public static int copy(InputStream in,
       OutputStream out)
                throws IOException

Copy the contents of the given InputStream to the given OutputStream. Closes both streams when done.

参数:

in - the stream to copy from

out - the stream to copy to

返回:

the number of bytes copied

抛出:

IOException - in case of I/O errors

copy

public static void copy(byte[] in,
        OutputStream out)
                 throws IOException

Copy the contents of the given byte array to the given OutputStream. Closes the stream when done.

参数:

in - the byte array to copy from

out - the OutputStream to copy to

抛出:

IOException - in case of I/O errors

copyToByteArray

public static byte[] copyToByteArray(InputStream in)
                              throws IOException

Copy the contents of the given InputStream into a new byte array. Closes the stream when done.

参数:

in - the stream to copy from

返回:

the new byte array that has been copied to

抛出:

IOException - in case of I/O errors

copy

public static int copy(Reader in,
       Writer out)
                throws IOException

Copy the contents of the given Reader to the given Writer. Closes both when done.

参数:

in - the Reader to copy from

out - the Writer to copy to

返回:

the number of characters copied

抛出:

IOException - in case of I/O errors

copy

public static void copy(String in,
        Writer out)
                 throws IOException

Copy the contents of the given String to the given output Writer. Closes the writer when done.

参数:

in - the String to copy from

out - the Writer to copy to

抛出:

IOException - in case of I/O errors

copyToString

public static String copyToString(Reader in)
                           throws IOException

Copy the contents of the given Reader into a String. Closes the reader when done.

参数:

in - the reader to copy from

返回:

the String that has been copied to

抛出:

IOException - in case of I/O errors