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POUncompress a zlib-compressed string in Java
 

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    <p>I have a Java module that is receiving a compressed string from a remote Python script. The Python script compresses the string using <code>zlib.compress()</code>. I simply want to uncompress it in Java and display it to the user.</p> <p>The <a href="http://download.oracle.com/javase/1.4.2/docs/api/java/util/zip/Deflater.html" rel="nofollow noreferrer">man page</a> for Java's built-in zip.Deflater object describes pretty explicitly how to uncompress something that has been compressed using <code>zlib.compress()</code>. However, this method does not work for me. Depending on which encoding I use, I either get "Incorrect Header Check" errors or the uncompression returns an empty string.</p> <p>So, how am I supposed to uncompress this? The data are not getting corrupted in transmission, and the compressed string begins with "x\x9c", which is apparently appropriate for zlib-compressed stuff.</p> <p>I've never dealt with compression/uncompression on this level before and am getting confused. For extra credit, I'd appreciate an explanation between compressed/uncompressed and inflated/deflated. According to <a href="https://stackoverflow.com/questions/2424945/are-zlib-compress-on-python-and-deflater-deflate-on-java-android-compatible">this</a> they are different, but most of the internet seems to use them interchangeably for zlib. This just makes trying to find a solution even more difficult, as I couldn't tell you whether I'm actually trying to "uncompress" or "inflate" these data.</p>
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    1. COYou decompress using the Inflater class.
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      1. USJames K Polk
    2. COThanks for the help, everyone. We decided to defer this functionality as it is a "nice to have" and was taking up too much of my time. Your comments were helpful, but nothing fixed the problem.
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