reading zipx in java
Any suggestions for a tool/object/utility to read a .zipx file in java?
Have already looked at I need a C# library for 开发者_Python百科zipx and http://www.winzip.com/comp_info.htm
It appears as though the ZIPX format is a regular ZIP container, just using compression methods other than DEFLATE.
This means you can use Java's regular ZipFile class to extract the byte[]
contents, but depending on the value of ZipEntry.getMethod()
you'll have to use non-JDK classes to decompress.
Compression methods and Java support:
- DEFLATE: in JDK
- bzip2: in Apache Commons
- Jpeg Compression - Compression Method 96: no Java code, AFAIK
- WavPack - Compression Method 97: at WavPack
- PPMd - Compression Method 98: no Java, AFAIK
- LZMA: available at http://contrapunctus.net/league/haques/lzmajio/
Note: this is for open-source Java libraries. It appears there's commercial, non-open-source libraries for all these.
In other words, apart from the above software from Chilkat software, you're gonna have to write a bunch of your own code to fully support ZIPX.
Needless to say, the folks at WinZip could add more compression methods at any point, so ZIPX isn't a fixed target.
I don't find any such library, so I think your best bet is to invoke the WinZip command line, using java.lang.Runtime#exec(..)
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