org.frameworkset.util

类 StreamUtils

java.lang.Object

org.frameworkset.util.StreamUtils

public abstract class StreamUtils
extends java.lang.Object

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
StreamUtils()

方法概要

限定符和类型	方法和说明
static void	copy(byte[] in, java.io.OutputStream out) Copy the contents of the given byte array to the given OutputStream.
static int	copy(java.io.InputStream in, java.io.OutputStream out) Copy the contents of the given InputStream to the given OutputStream.
static void	copy(java.lang.String in, java.nio.charset.Charset charset, java.io.OutputStream out) Copy the contents of the given String to the given output OutputStream.
static byte[]	copyToByteArray(java.io.InputStream in) Copy the contents of the given InputStream into a new byte array.
static java.lang.String	copyToString(java.io.InputStream in, java.nio.charset.Charset charset) Copy the contents of the given InputStream into a String.
static java.io.InputStream	emptyInput() Return an efficient empty InputStream.
static java.io.InputStream	nonClosing(java.io.InputStream in) Return a variant of the given InputStream where calling close() has no effect.
static java.io.OutputStream	nonClosing(java.io.OutputStream out) Return a variant of the given OutputStream where calling close() has no effect.

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

StreamUtils

public StreamUtils()

方法详细资料

copyToByteArray

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

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

参数:

in - the stream to copy from

返回:

the new byte array that has been copied to

抛出:

java.io.IOException - in case of I/O errors

copyToString

public static java.lang.String copyToString(java.io.InputStream in,
                                            java.nio.charset.Charset charset)
                                     throws java.io.IOException

Copy the contents of the given InputStream into a String. Leaves the stream open when done.

参数:

in - the InputStream to copy from

返回:

the String that has been copied to

抛出:

java.io.IOException - in case of I/O errors

copy

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

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

参数:

in - the byte array to copy from

out - the OutputStream to copy to

抛出:

java.io.IOException - in case of I/O errors

copy

public static void copy(java.lang.String in,
                        java.nio.charset.Charset charset,
                        java.io.OutputStream out)
                 throws java.io.IOException

Copy the contents of the given String to the given output OutputStream. Leaves the stream open when done.

参数:

in - the String to copy from

charset - the Charset

out - the OutputStream to copy to

抛出:

java.io.IOException - in case of I/O errors

copy

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

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

参数:

in - the InputStream to copy from

out - the OutputStream to copy to

返回:

the number of bytes copied

抛出:

java.io.IOException - in case of I/O errors

emptyInput

public static java.io.InputStream emptyInput()

Return an efficient empty InputStream.

返回:

a ByteArrayInputStream based on an empty byte array

从以下版本开始:

4.2.2

nonClosing

public static java.io.InputStream nonClosing(java.io.InputStream in)

Return a variant of the given InputStream where calling close() has no effect.

参数:

in - the InputStream to decorate

返回:

a version of the InputStream that ignores calls to close

nonClosing

public static java.io.OutputStream nonClosing(java.io.OutputStream out)

Return a variant of the given OutputStream where calling close() has no effect.

参数:

out - the OutputStream to decorate

返回:

a version of the OutputStream that ignores calls to close