java.util.zip.GZIPOutputStream翻译_wocongdongfanglai的博客-程序员秘密

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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。

Fields inherited from class java.util.zip.DeflaterOutputStream

buf, def

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary
`GZIPOutputStream(OutputStream out)` Creates a new output stream with a default buffer size. 使用默认缓冲大小创建输出流。
`GZIPOutputStream(OutputStream out, int size)` Creates a new output stream with the specified buffer size. 使用指定缓冲大小创建输出流。

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.util.zip.DeflaterOutputStream

close, deflate, write

Methods inherited from class java.io.FilterOutputStream

flush, write

Methods inherited from class java.lang.Object

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

Field Detail

crc

protected CRC32 crc

CRC-32 of uncompressed data. 用于解压数据的CRC-32。

Constructor Detail

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。

Method Detail

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

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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.

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