jexx.io

类 IOUtil

java.lang.Object

jexx.io.IOUtil

public class IOUtil
extends java.lang.Object

字段概要

字段

限定符和类型	字段和说明
static int	EOF

构造器概要

构造器

构造器和说明
IOUtil()

方法概要

限定符和类型	方法和说明
static void	closeQuietly(java.lang.AutoCloseable closeable) 关闭 关闭失败不会抛出异常
static void	closeQuietly(java.io.Closeable... closeables)
static void	closeQuietly(java.io.Closeable closeable)
static void	copy(byte[] in, java.io.OutputStream out)
static long	copy(java.io.FileInputStream in, java.io.FileOutputStream out) 拷贝文件流，使用NIO
static long	copy(java.io.File file, java.io.OutputStream out) 拷贝文件到目标流中
static long	copy(java.io.InputStream input, java.io.OutputStream output)
static long	copy(java.io.InputStream input, java.io.OutputStream output, int bufferSize)
static long	copy(java.io.InputStream input, java.io.OutputStream output, int bufferSize, StreamProgress streamProgress)
static long	copy(java.nio.channels.ReadableByteChannel in, java.nio.channels.WritableByteChannel out)
static long	copy(java.nio.channels.ReadableByteChannel in, java.nio.channels.WritableByteChannel out, int bufferSize, StreamProgress streamProgress) 拷贝流，使用NIO
static long	copy(java.nio.channels.ReadableByteChannel in, java.nio.channels.WritableByteChannel out, StreamProgress streamProgress)
static <T extends java.io.OutputStream> T	copy(java.io.Reader input, T output)
static <T extends java.io.OutputStream> T	copy(java.io.Reader input, T output, java.nio.charset.Charset charset)
static long	copy(java.io.Reader reader, java.io.Writer writer) 将Reader中的内容复制到Writer中 使用默认缓存大小
static long	copy(java.io.Reader reader, java.io.Writer writer, int bufferSize) 将Reader中的内容复制到Writer中
static long	copy(java.io.Reader reader, java.io.Writer writer, int bufferSize, StreamProgress streamProgress) 将Reader中的内容复制到Writer中
static long	copyByNIO(java.io.InputStream in, java.io.OutputStream out)
static long	copyByNIO(java.io.InputStream in, java.io.OutputStream out, int bufferSize, StreamProgress streamProgress) 使用NIO拷贝流
static long	copyByNIO(java.io.InputStream in, java.io.OutputStream out, StreamProgress streamProgress)
static byte[]	copyToByteArray(java.io.InputStream input)
static FastByteArrayOutputStream	copyToOutputStream(java.io.InputStream input)
static FastByteArrayOutputStream	copyToOutputStream(java.io.Reader input, java.nio.charset.Charset charset)
static byte[]	readBytes(java.io.InputStream inputStream) 流中字节转换为字节数组
static byte[]	readBytes(java.io.InputStream inputStream, int length) 流中获取一定长度的字节,并返回字节数组
static byte[]	readBytes(java.io.Reader input)
static byte[]	readBytes(java.io.Reader input, java.nio.charset.Charset charset)
static java.io.BufferedInputStream	toBuffered(java.io.InputStream in) 转换为BufferedInputStream
static java.io.BufferedOutputStream	toBuffered(java.io.OutputStream out) 转换为BufferedOutputStream
static java.io.InputStream	toMarkSupportStream(java.io.InputStream in) 将InputStream转换为支持mark标记的流 若原流支持mark标记，则返回原流，否则使用BufferedInputStream 包装之 s
static java.io.PushbackInputStream	toPushbackStream(java.io.InputStream in, int pushBackSize) 转换为PushbackInputStream 如果传入的输入流已经是PushbackInputStream，强转返回，否则新建一个
static java.io.FileInputStream	toStream(java.io.File file) 文件转为流
static java.io.ByteArrayInputStream	toStream(java.lang.String content, java.nio.charset.Charset charset) String 转为流
static java.io.ByteArrayInputStream	toStream(java.lang.String content, java.lang.String charsetName) String 转为流

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

EOF

public static final int EOF

另请参阅:

常量字段值

构造器详细资料

IOUtil

public IOUtil()

方法详细资料

closeQuietly

public static void closeQuietly(java.io.Closeable... closeables)

closeQuietly

public static void closeQuietly(java.io.Closeable closeable)

closeQuietly

public static void closeQuietly(java.lang.AutoCloseable closeable)

关闭
关闭失败不会抛出异常

参数:

closeable - 被关闭的对象

copy

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

copy

public static long copy(java.io.InputStream input,
                        java.io.OutputStream output)
                 throws IORuntimeException

抛出:

IORuntimeException

copy

public static long copy(java.io.InputStream input,
                        java.io.OutputStream output,
                        int bufferSize)
                 throws IORuntimeException

抛出:

IORuntimeException

copy

public static long copy(java.io.InputStream input,
                        java.io.OutputStream output,
                        int bufferSize,
                        StreamProgress streamProgress)
                 throws IORuntimeException

抛出:

IORuntimeException

copy

public static long copy(java.io.Reader reader,
                        java.io.Writer writer)
                 throws IORuntimeException

将Reader中的内容复制到Writer中 使用默认缓存大小

参数:

reader - Reader

writer - Writer

返回:

拷贝的字节数

抛出:

IORuntimeException - IO异常

copy

public static long copy(java.io.Reader reader,
                        java.io.Writer writer,
                        int bufferSize)
                 throws IORuntimeException

将Reader中的内容复制到Writer中

参数:

reader - Reader

writer - Writer

bufferSize - 缓存大小

返回:

传输的byte数

抛出:

IORuntimeException - IO异常

copy

public static long copy(java.io.Reader reader,
                        java.io.Writer writer,
                        int bufferSize,
                        StreamProgress streamProgress)
                 throws IORuntimeException

将Reader中的内容复制到Writer中

参数:

reader - Reader

writer - Writer

bufferSize - 缓存大小

streamProgress - 进度处理器

返回:

传输的byte数

抛出:

IORuntimeException - IO异常

copy

public static long copy(java.io.FileInputStream in,
                        java.io.FileOutputStream out)
                 throws IORuntimeException

拷贝文件流，使用NIO

参数:

in - 输入

out - 输出

返回:

拷贝的字节数

抛出:

IORuntimeException - IO异常

copy

public static long copy(java.io.File file,
                        java.io.OutputStream out)

拷贝文件到目标流中

参数:

file - 源文件

out - 目标流

返回:

拷贝的字节数

copy

public static long copy(java.nio.channels.ReadableByteChannel in,
                        java.nio.channels.WritableByteChannel out,
                        int bufferSize,
                        StreamProgress streamProgress)

拷贝流，使用NIO

参数:

in - ReadableByteChannel, 需主动关闭channel

out - WritableByteChannel, 需主动关闭channel

bufferSize - 缓冲大小，如果小于等于0，使用默认

streamProgress - StreamProgress进度处理器

返回:

拷贝的字节数

copy

public static long copy(java.nio.channels.ReadableByteChannel in,
                        java.nio.channels.WritableByteChannel out,
                        StreamProgress streamProgress)

copy

public static long copy(java.nio.channels.ReadableByteChannel in,
                        java.nio.channels.WritableByteChannel out)

copyByNIO

public static long copyByNIO(java.io.InputStream in,
                             java.io.OutputStream out,
                             int bufferSize,
                             StreamProgress streamProgress)

使用NIO拷贝流

参数:

in - 输入流

out - 输出流

bufferSize - 缓存大小

streamProgress - 进度条

返回:

传输的byte数

copyByNIO

public static long copyByNIO(java.io.InputStream in,
                             java.io.OutputStream out,
                             StreamProgress streamProgress)

copyByNIO

public static long copyByNIO(java.io.InputStream in,
                             java.io.OutputStream out)

copy

public static <T extends java.io.OutputStream> T copy(java.io.Reader input,
                                                      T output)

copy

public static <T extends java.io.OutputStream> T copy(java.io.Reader input,
                                                      T output,
                                                      java.nio.charset.Charset charset)
                                               throws IORuntimeException

抛出:

IORuntimeException

copyToOutputStream

public static FastByteArrayOutputStream copyToOutputStream(java.io.Reader input,
                                                           java.nio.charset.Charset charset)

copyToOutputStream

public static FastByteArrayOutputStream copyToOutputStream(java.io.InputStream input)

copyToByteArray

public static byte[] copyToByteArray(java.io.InputStream input)

readBytes

public static byte[] readBytes(java.io.InputStream inputStream)

流中字节转换为字节数组

参数:

inputStream - 输入流

返回:

返回字节数组

readBytes

public static byte[] readBytes(java.io.InputStream inputStream,
                               int length)

流中获取一定长度的字节,并返回字节数组

参数:

inputStream - 输入流

length - 待获取的字节长度

返回:

一定长度的字节数组

readBytes

public static byte[] readBytes(java.io.Reader input)

readBytes

public static byte[] readBytes(java.io.Reader input,
                               java.nio.charset.Charset charset)

toStream

public static java.io.ByteArrayInputStream toStream(java.lang.String content,
                                                    java.lang.String charsetName)

String 转为流

参数:

content - 内容

charsetName - 编码

返回:

字节流

toStream

public static java.io.ByteArrayInputStream toStream(java.lang.String content,
                                                    java.nio.charset.Charset charset)

String 转为流

参数:

content - 内容

charset - 编码

返回:

字节流

toStream

public static java.io.FileInputStream toStream(java.io.File file)

文件转为流

参数:

file - 文件

返回:

FileInputStream

toBuffered

public static java.io.BufferedInputStream toBuffered(java.io.InputStream in)

转换为BufferedInputStream

参数:

in - InputStream

返回:

BufferedInputStream

从以下版本开始:

4.0.10

toBuffered

public static java.io.BufferedOutputStream toBuffered(java.io.OutputStream out)

转换为BufferedOutputStream

参数:

out - OutputStream

返回:

BufferedOutputStream

从以下版本开始:

4.0.10

toMarkSupportStream

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

将InputStream转换为支持mark标记的流
若原流支持mark标记，则返回原流，否则使用BufferedInputStream 包装之 s

参数:

in - 流

toPushbackStream

public static java.io.PushbackInputStream toPushbackStream(java.io.InputStream in,
                                                           int pushBackSize)

转换为PushbackInputStream
如果传入的输入流已经是PushbackInputStream，强转返回，否则新建一个

参数:

in - InputStream

pushBackSize - 推后的byte数

返回:

PushbackInputStream