java.util.zip Class GZIPOutputStream
java.lang.Object
java.io.OutputStream
java.io.FilterOutputStream
java.util.zip.DeflaterOutputStream
java.util.zip.GZIPOutputStream
public class GZIPOutputStream
extends
DeflaterOutputStream
This class implements a stream filter for writing compressed data in the GZIP file format. 实现以GZIP格式写入压缩数据的流过滤器的类。
Field Summary protected CRC32
crc
CRC-32 of uncompressed data. 用于解压数据的CRC-32。
Method Summary void
finish ()
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。 void
write (byte[] buf, int off, int len)
Writes array of bytes to the compressed output stream. 将字节数组写入压缩输出流。
Methods inherited from class java.lang.Object clone , equals , finalize , getClass , hashCode , notify , notifyAll , toString , wait , wait , wait
crc
protected CRC32 crc
CRC-32 of uncompressed data. 用于解压数据的CRC-32。
GZIPOutputStream
public GZIPOutputStream ( OutputStream out,
int size)
throws IOException
Creates a new output stream with the specified buffer size. 使用指定缓冲大小创建输出流。
Parameters:
out
- the output stream 输出流
size
- the output buffer size 输出缓冲大小
Throws:
IOException
- If an I/O error has occurred. 如果发生I/O错误抛出。
IllegalArgumentException
- if size is <= 0 如果大小<= 0抛出
GZIPOutputStream
public GZIPOutputStream ( OutputStream out)
throws IOException
Creates a new output stream with a default buffer size. 使用默认缓冲大小创建输出流。
Parameters:
out
- the output stream 输出流
Throws:
IOException
- If an I/O error has occurred. 如果发生I/O错误抛出。
write
public void write (byte[] buf,
int off,
int len)
throws IOException
Writes 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。方法阻塞直到所有字节被写入。
Overrides:
write
in class DeflaterOutputStream
Parameters:
buf
- the data to be written 要写入的数据
off
- the start offset of the data 数据的起始偏移
len
- the length of the data 数据大小
Throws:
IOException
- If an I/O error has occurred. 如果发生I/O错误抛出。
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。
Overrides:
finish
in class DeflaterOutputStream
Throws:
IOException
- if an I/O error has occurred 如果发生I/O错误抛出
Submit a bug or feature
For further API reference and developer documentation, see
Java 2 SDK SE Developer Documentation
. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms . Also see the documentation redistribution policy .