Copy ZipEntry from one zip file to another without unzipping

php editor Baicao brings you the java Q&A for this article. Today we will discuss how to copy ZipEntry from one zip file to another zip file without decompression. This problem may be encountered in actual development. We will help you achieve this operation by analyzing and demonstrating the relevant code. Let’s discuss this interesting topic together!

Question content

In my Kotlin service. I have a zip file A and I want to conditionally add the contents of zip file A to zip file B or C based on the ZipEntry name.

Is there a way to avoid unzipping the ZipEntry and "copying" the entries into a new zip file?

edit; I can use apache compress if it helps achieve what I want.

Solution

Path in Java is a summary of disk files. It is used with FileSystemViews where one "file system" is the protocol jar:file: for zip files. Using Files.copy(Path, Path) you can copy zip entries abstractly. This is the most elegant way.

But I suspect this will prevent decompression/compression. Parsing the zip file yourself may be fastest.

I will try both.

The above is the detailed content of Copy ZipEntry from one zip file to another without unzipping. For more information, please follow other related articles on the PHP Chinese website!