java.util.zip.DeflaterOutputStream翻译

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java.util.zip
Class DeflaterOutputStream

java.lang.Object  java.io.OutputStream      java.io.FilterOutputStream          java.util.zip.DeflaterOutputStream

Direct Known Subclasses:

GZIPOutputStream, ZipOutputStream

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public class DeflaterOutputStream

extends FilterOutputStream

This class implements an output stream filter for compressing data in the "deflate" compression format. It is also used as the basis for other types of compression filters, such as GZIPOutputStream. 该类为用“deflate”压缩格式压缩数据实现了一个输出流过滤器。它也用作其它类型的压缩过滤器如GZIPOutputStream的基础。

See Also:

Deflater

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Field Summaryprotected  byte[]buf
          Output buffer for writing compressed data. 写压缩数据的输出缓冲区。protected  Deflaterdef
          Compressor for this stream. 流的压缩器。  Fields inherited from class java.io.FilterOutputStreamout  Constructor SummaryDeflaterOutputStream(OutputStream out)
          Creates a new output stream with a defaul compressor and buffer size. 用默认的压缩器和缓冲区大小创建一个新的输出流。DeflaterOutputStream(OutputStream out, Deflater def)
          Creates a new output stream with the specified compressor and a default buffer size. 用指定的压缩器和默认缓冲区大小创建一个新的输出流。DeflaterOutputStream(OutputStream out, Deflater def, int size)
          Creates a new output stream with the specified compressor and buffer size. 用指定的压缩器和缓冲区大小创建一个新的输出流。  Method Summary voidclose()
          Writes remaining compressed data to the output stream and closes the underlying stream. 将剩余的已压缩数据写入到输出流且关闭底层流。protected  voiddeflate()
          Writes next block of compressed data to the output stream. 将下一块已压缩数据写入输出流。 voidfinish()
          Finishes writing compressed data to the output stream without closing the underlying stream. 完成已压缩数据对输出流的写入但不关闭底层流。 voidwrite(byte[] b, int off, int len)
          Writes an array of bytes to the compressed output stream. 将字节数组写入压缩输出流。 voidwrite(int b)
          Writes a byte to the compressed output stream. 将一字节写入压缩输出流。  Methods inherited from class java.io.FilterOutputStreamflush, write  Methods inherited from class java.lang.Objectclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait 

Field Detail

def

protected Deflater def

Compressor for this stream. 流的压缩器。

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buf

protected byte[] buf

Output buffer for writing compressed data. 写压缩数据的输出缓冲区。

Constructor Detail

DeflaterOutputStream

public DeflaterOutputStream(OutputStream out,                            Deflater def,                            int size)

Creates a new output stream with the specified compressor and buffer size. 用指定的压缩器和缓冲区大小创建一个新的输出流。

Parameters:

out - the output stream 输出流

def - the compressor ("deflater") 压缩器（“deflater”）

size - the output buffer size 输出缓冲大小

Throws:

IllegalArgumentException - if size is <= 0 如果大小<=0抛出

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DeflaterOutputStream

public DeflaterOutputStream(OutputStream out,                            Deflater def)

Creates a new output stream with the specified compressor and a default buffer size. 用指定的压缩器和默认缓冲区大小创建一个新的输出流。

Parameters:

out - the output stream 输出流

def - the compressor ("deflater") 压缩器（“deflater”）

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DeflaterOutputStream

public DeflaterOutputStream(OutputStream out)

Creates a new output stream with a defaul compressor and buffer size. 用默认的压缩器和缓冲区大小创建一个新的输出流。

Parameters:

out - the output stream 输出流

Method Detail

write

public void write(int b)           throws IOException

Writes a byte to the compressed output stream. This method will block until the byte can be written. 将一字节写入压缩输出流。方法将阻塞直到该字节写入。

Overrides:

write in class FilterOutputStream

Parameters:

b - the byte to be written 要写入的字节

Throws:

IOException - if an I/O error has occurred 如果发生I/O错误抛出

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write

public void write(byte[] b,                  int off,                  int len)           throws IOException

Writes an array of bytes to the compressed output stream. This method will block until all the bytes are written. 将字节数组写入压缩输出流。方法将阻塞直到所有字节写入。

Overrides:

write in class FilterOutputStream

Parameters:

b - the data to be written 要写入的数据

off - the start offset of the data 数据起始偏移

len - the length of the data 数据长度

Throws:

IOException - if an I/O error has occurred 如果发生I/O错误抛出

See Also:

FilterOutputStream.write(int)

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finish

public void finish()            throws IOException

Finishes writing compressed data to the output stream without closing the underlying stream. Use this method when applying multiple filters in succession to the same output stream. 完成已压缩数据对输出流的写入但不关闭底层流。当在同一个输出流上连续应用多个过滤器时使用此方法。

Throws:

IOException - if an I/O error has occurred 如果发生I/O错误抛出

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close

public void close()           throws IOException

Writes remaining compressed data to the output stream and closes the underlying stream. 将剩余的已压缩数据写入到输出流且关闭底层流。

Overrides:

close in class FilterOutputStream

Throws:

IOException - if an I/O error has occurred 如果发生I/O错误抛出

See Also:

FilterOutputStream.flush(), FilterOutputStream.out

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deflate

protected void deflate()                throws IOException

Writes next block of compressed data to the output stream. 将下一块已压缩数据写入输出流。

Throws:

IOException - if an I/O error has occurred 如果发生I/O错误抛出

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