Code to zip a file in java

Matthias Braun Chris Chris What is their purpose? These lines are necessary because Zip files work with byte arrays, not strings. I'm a little confused by this too. If you're writing the sb. Or am I missing something? RobA you're not missing anything.

The StringBuilder is indeed meant to contain the text the OP got from his database. Thanks, Blueriver — RobA. Show 3 more comments.

Sivabalan Sivabalan 2, 2 2 gold badges 22 22 silver badges 20 20 bronze badges. Is there a way to make this work if the extension is not. I need to write a. I know I could make a. TroyDaniels the example above works with different extension as well, since its using jar:file: prefix to create URI.

The only issue which can appear here is that it won't work in case you have directories. For this, just add the next line: Files. WiseGeek WiseGeek 3 3 silver badges 6 6 bronze badges. FileOutputStream; import java. IOException; import java.

BasicFileAttributes; import java. ZipEntry; import java. Owen Cao Owen Cao 7, 2 2 gold badges 25 25 silver badges 33 33 bronze badges. How to include current directory? It is also compressing the zip file again if the input and output directories are the same. Spring boot controller, zip the files in a directory, and can be downloaded.

Yuiffy Yuiffy 6 6 bronze badges. Pavel Pavel 2, 1 1 gold badge 19 19 silver badges 17 17 bronze badges. Then process each one of them separately. We need to add a ZipEntry for each file and use FileInputStream to read the content of the source file to the ZipEntry corresponding to that file. Notice that while logging files to zip in directory, I am printing absolute path.

But while adding zip entry, I am using relative path from the directory so that when we unzip it, it will create the same directory structure.

I would like to know, how to zip individual files that all end in the extension of. Are there anything which can allow to compress a file in different modes like fast compression or full compression. Hiii… can you give me a source code of unzip a file with its hirarchy. Thanks in advance. I discovered your post on ZipOutputStream after I had finished writing my own code to create an epub which is a zipfile by another name from its constituent files. Since there are no exceptions, I have been searching the web for posts like yours.

I have run out of ideas. What might I have missed? Just wanted to say keep up the great job! Your email address will not be published. Prev Java IO Tutorial. Next Java Unzip File Example. Like Article. Attention reader! Get hold of all the important Java Foundation and Collections concepts with the Fundamentals of Java and Java Collections Course at a student-friendly price and become industry ready. Recommended Articles.

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