程序包 net.dongliu.commons.io

类 InputStreams

java.lang.Object

net.dongliu.commons.io.InputStreams

public class InputStreams
extends java.lang.Object

Utils for InputStreams.

构造器概要

构造器

构造器	说明
InputStreams()

方法概要

修饰符和类型	方法	说明
static java.io.InputStream	concat(byte[] data, java.io.InputStream in)	Return a new InputStream that concat additional prepended data and InputStream.
static java.io.InputStream	concat(java.io.InputStream... inputs)	Return a new InputStream that concat multi sub InputStreams.
static java.io.InputStream	concat(java.util.List<java.io.InputStream> inputs)	Return a new InputStream that concat multi sub InputStreams.
static long	discardAll(java.io.InputStream in)	Skip or read all data till EOF from InputStream.
static java.io.InputStream	empty()	Return a empty input stream with no data.
static byte[]	readAll(java.io.InputStream in)	Read all data in InputStream.
static int	readExact(java.io.InputStream in, byte[] data, int offset, int len)	Read exact data with size, into data.
static byte[]	readExact(java.io.InputStream in, int len)	Read exact data with size.
static void	transferTo(java.io.InputStream in, java.io.OutputStream out)	Copy all data in InputStream to OutputStream.

从类继承的方法 java.lang.Object

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

构造器详细资料

InputStreams

public InputStreams()

方法详细资料

transferTo

public static void transferTo(java.io.InputStream in,
                              java.io.OutputStream out)
                       throws java.io.IOException

Copy all data in InputStream to OutputStream. Both in and out are left unclosed when copy finished, or Exception occurred.

抛出:

java.io.IOException

readAll

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

Read all data in InputStream. The Stream is left unclosed when read finished, or Exception occurred.

抛出:

java.io.IOException

readExact

public static int readExact(java.io.InputStream in,
                            byte[] data,
                            int offset,
                            int len)
                     throws java.io.IOException

Read exact data with size, into data. The InputStream is not close after read or Exception occurred.

返回:

The real data size read. If InputStream does not has enough data for read, will return a size less than desired.

抛出:

java.io.IOException

readExact

public static byte[] readExact(java.io.InputStream in,
                               int len)
                        throws java.io.IOException

Read exact data with size. The InputStream is not close after read or Exception occurred.

返回:

The data read. If InputStream does not has enough data for read, will return a byte array which len less than desired size.

抛出:

java.io.IOException

discardAll

public static long discardAll(java.io.InputStream in)
                       throws java.io.IOException

Skip or read all data till EOF from InputStream. The InputStream is left unclosed.

返回:

the total data size read

抛出:

java.io.IOException

empty

public static java.io.InputStream empty()

Return a empty input stream with no data.

concat

public static java.io.InputStream concat(java.util.List<java.io.InputStream> inputs)

Return a new InputStream that concat multi sub InputStreams. The close() method of returned InputStream will close all sub InputStreams.

concat

public static java.io.InputStream concat(java.io.InputStream... inputs)

Return a new InputStream that concat multi sub InputStreams. The close() method of returned InputStream will close all sub InputStreams.

concat

public static java.io.InputStream concat(byte[] data,
                                         java.io.InputStream in)

Return a new InputStream that concat additional prepended data and InputStream. The close() method of returned InputStream will close the passed in InputStream.