从FileChannel（Java NIO）读取GZIP文件 [英] Reading a GZIP file from a FileChannel (Java NIO)

问题描述

我需要在给定FileChannel的情况下读取/解压缩.gz文件。

I need to read/unpack a .gz file given a FileChannel.

我使用GZIPInputStream解压缩GZIP档案，但这不会占用FileChannel。我没有访问FileChannel的原始FileInputStream。

I've played around with extracting GZIP archives using GZIPInputStream, but this won't take a FileChannel. I don't have access to the original FileInputStream that the FileChannel was taken from.

如果有人能告诉我一个好方法（或至少任何

If someone could tell me a good way (or at least any way) of reading GZIP from a FileChannel, I would greatly appreciate it.

改编自 Sun Oracle论坛。

Adapted from a question on the Sun Oracle forums.

推荐答案

您可以在FileChannel周围获取包装InputStream：

You could obtain a wrapping InputStream around the FileChannel:

FileChannel fc = ...
GZIPInputStream gis = new GZIPInputStream(Channels.newInputStream(fc));

频道在Java SE中。

Channels is in Java SE.

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