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Asked: 2026-05-30T20:11:30+00:00

Possible Duplicate: In Java: How to zip file from byte[] array? Here’s the deal,

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Possible Duplicate:
In Java: How to zip file from byte[] array?

Here’s the deal, I work at a university web office and we provide a few website templates for university departments and clubs. I have been tasked with building a web form that will allow them to select the template they want and provide a title which will be programmatically inserted into the template they select before downloading.

My question is, can I pull the template into memory, insert the title and output it to a zip archive without writing a temporary file to disk?

It seems that Java’s ZipEntry requires a filename and cannot simply use data already in memory.

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1 Answer

  1. Editorial Team

    No, the name “file name” is probably a little bit confusing here but it means the file name of entry in ZIP archive you are creating. Take a look on ZipOutputStream. It is created as a wrapper over every other output stream, either FileOutputStream or ByteArrayOutputStream. Using ByteArrayOutputStream you can create zip archive completely in memory.

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