Java Requires Chilkat v11.0.0+

Extract a Single ZIP Entry While Preserving Its Stored Path

See more Zip Examples

This example demonstrates how to use the ZipEntry.Extract method to extract a single entry from a ZIP archive.

The example first creates a ZIP archive containing a text file. It then re-opens the ZIP, finds the entry, and extracts it to a base directory.

The Extract method uses the relative path stored within the ZIP entry. Any required subdirectories are created automatically beneath the specified base directory.

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Zip;
import com.chilkatsoft.chilkat2.ZipEntry;

public class ChilkatExample {

    public static void main(String[] args) {
        boolean success = false;

        // ------------------------------------------------------------
        // First create a sample ZIP archive containing a small text file.

        Zip zip = new Zip();

        try {
            zip.newZip("c:/temp/sampleText.zip");

            // Add a small text file from memory.
            zip.addString("myApp/docs/hello.txt", "Hello from a ZIP entry!", "utf-8");

            // Write the ZIP archive to disk and close it.
            zip.writeZipAndClose();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // ------------------------------------------------------------
        // Now open the ZIP archive we just created.

        Zip zip2 = new Zip();

        try {
            zip2.openZip("c:/temp/sampleText.zip");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Find the entry by its stored ZIP path.
        ZipEntry entry = new ZipEntry();

        success = zip2.entryOf("myApp/docs/hello.txt", entry);

        if (!success) {
            System.out.println("Entry not found.");
            return;
        }

        // Extract this single entry to the base directory:
        //
        //     c:/temp/extracted
        //
        // Because the entry's stored path is:
        //
        //     myApp/docs/hello.txt
        //
        // the file will be extracted to:
        //
        //     qa_output/extracted/myApp/docs/hello.txt
        //
        // The required subdirectories are created automatically.
        try {
            entry.extract("c:/temp/extracted");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        zip2.closeZip();

        System.out.println("Entry extracted successfully.");
    }
}