com.lc.utils

Class UIoUtil

java.lang.Object

com.lc.utils.UIoUtil

public class UIoUtil
extends Object

IO工具类
IO工具类只是辅助流的读写，并不负责关闭流。原因是流可能被多次读写，读写关闭后容易造成问题。

Since:

0.1

Author:

LC

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_BUFFER_SIZE 默认缓存大小 8192
static int	DEFAULT_LARGE_BUFFER_SIZE 默认大缓存大小 32768
static int	DEFAULT_MIDDLE_BUFFER_SIZE 默认中等缓存大小 16384
static int	EOF 数据流末尾

Constructor Summary

Constructors

Constructor and Description
UIoUtil()

Method Summary

Modifier and Type	Method and Description
static void	close(Closeable closeable) 关闭 关闭失败不会抛出异常
static long	copy(InputStream in, OutputStream out) 拷贝流，使用默认Buffer大小，拷贝后不关闭流
static long	copy(InputStream in, OutputStream out, int bufferSize) 拷贝流，拷贝后不关闭流
static long	copy(InputStream in, OutputStream out, int bufferSize, StreamProgress streamProgress) 拷贝流，拷贝后不关闭流
static byte[]	readBytes(InputStream in) 从流中读取bytes，读取完毕后关闭流
static byte[]	readBytes(InputStream in, boolean isCloseStream) 从流中读取bytes
static void	write(OutputStream out, boolean isCloseOut, byte[] content) 将byte[]写到流中

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_BUFFER_SIZE

public static final int DEFAULT_BUFFER_SIZE

默认缓存大小 8192

See Also:

Constant Field Values

DEFAULT_MIDDLE_BUFFER_SIZE

public static final int DEFAULT_MIDDLE_BUFFER_SIZE

默认中等缓存大小 16384

See Also:

Constant Field Values

DEFAULT_LARGE_BUFFER_SIZE

public static final int DEFAULT_LARGE_BUFFER_SIZE

默认大缓存大小 32768

See Also:

Constant Field Values

EOF

public static final int EOF

数据流末尾

See Also:

Constant Field Values

Constructor Detail

UIoUtil

public UIoUtil()

Method Detail

close

public static void close(Closeable closeable)

关闭
关闭失败不会抛出异常

Parameters:

closeable - 被关闭的对象

readBytes

public static byte[] readBytes(InputStream in)
                        throws IORuntimeException

从流中读取bytes，读取完毕后关闭流

Parameters:

in - InputStream

Returns:

bytes

Throws:

IORuntimeException - IO异常

readBytes

public static byte[] readBytes(InputStream in,
                               boolean isCloseStream)
                        throws IORuntimeException

从流中读取bytes

Parameters:

in - InputStream

isCloseStream - 是否关闭输入流

Returns:

bytes

Throws:

IORuntimeException - IO异常

copy

public static long copy(InputStream in,
                        OutputStream out)
                 throws IORuntimeException

拷贝流，使用默认Buffer大小，拷贝后不关闭流

Parameters:

in - 输入流

out - 输出流

Returns:

传输的byte数

Throws:

IORuntimeException - IO异常

copy

public static long copy(InputStream in,
                        OutputStream out,
                        int bufferSize)
                 throws IORuntimeException

拷贝流，拷贝后不关闭流

Parameters:

in - 输入流

out - 输出流

bufferSize - 缓存大小

Returns:

传输的byte数

Throws:

IORuntimeException - IO异常

copy

public static long copy(InputStream in,
                        OutputStream out,
                        int bufferSize,
                        StreamProgress streamProgress)
                 throws IORuntimeException

拷贝流，拷贝后不关闭流

Parameters:

in - 输入流

out - 输出流

bufferSize - 缓存大小

streamProgress - 进度条

Returns:

传输的byte数

Throws:

IORuntimeException - IO异常

write

public static void write(OutputStream out,
                         boolean isCloseOut,
                         byte[] content)
                  throws IORuntimeException

将byte[]写到流中

Parameters:

out - 输出流

isCloseOut - 写入完毕是否关闭输出流

content - 写入的内容

Throws:

IORuntimeException - IO异常