Apache Commons Compress 1.17,bug 修复和新功能

Apache Commons Compress 1.17 已发布,和平时一样,该版本包含 bug 修复和新功能的引入。引入了一个新的接口 InputStreamStatistics,可用于监视由大多数压缩器和一些归档输入流(archiving input streams)实现的解压进度。

下载地址: http://commons.apache.org/proper/commons-compress/download_compress.cgi

其它一些新特性

  • Added a unit test that is supposed to fail if we break the OSGi manifest entries again.

  • Add a new SkipShieldingInputStream class that can be used with streams that throw an IOException when skip is invoked.

  • New constructors have been added to SevenZFile that accept char[]s rather than byte[]s in order to avoid a common error of using the wrong encoding when creating the byte[]. This change may break source compatibility for client code that uses one of the constructors expecting a password and passes in null as password. We recommend to change the code to use a constructor without password argument.

详细更新内容点此查看

Commons Compress 用以实现将文件压缩或解压成 tarzip、bzip2 等格式。

下面代码将文件压缩成zip格式:

ArArchiveEntry entry = new ArArchiveEntry(name, size);
arOutput.putArchiveEntry(entry);
arOutput.write(contentOfEntry);
arOutput.closeArchiveEntry();

Zip文件的解压缩:

ArArchiveEntry entry = (ArArchiveEntry) arInput.getNextEntry();
byte[] content = new byte[entry.getSize()];
LOOP UNTIL entry.getSize() HAS BEEN READ {
    arInput.read(content, offset, content.length - offset);
}

原文 

https://www.oschina.net/news/96791/apache-commons-compress-1-17-released

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