Java 有一個很好的類庫來處理 zip 文件。這些類在 java.util.zip 包中可用。以下 Java 示例程序展示了如何使用 java.util.zip 類創建整個文件夾的 zip。我們使用Files.walkFileTree遞歸地瀏覽目錄樹，然后將每個文件添加到新創建的 zip 文件中。請注意，此示例僅適用于 Java 1.7 及更高版本。

import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream; 
// Source code to create a zip file from a given folder
// This example program recursively adds all files in the folder
// Works only with Java 7 and above
public class ZipFolder {
    public static void main(String[] args) throws Exception {
        ZipFolder zf = new ZipFolder();         
        // Use the following paths for windows
        //String folderToZip = "c:\\demo\\test";
        //String zipName = "c:\\demo\\test.zip";         
        // Linux/mac paths
        String folderToZip = "/Users/jj/test";
        String zipName = "/Users/jj/test.zip";
        zf.zipFolder(Paths.get(folderToZip), Paths.get(zipName));
    } 
    // Uses java.util.zip to create zip file
    private void zipFolder(Path sourceFolderPath, Path zipPath) throws Exception {
        ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(zipPath.toFile()));
        Files.walkFileTree(sourceFolderPath, new SimpleFileVisitor<Path>() {
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                zos.putNextEntry(new ZipEntry(sourceFolderPath.relativize(file).toString()));
                Files.copy(file, zos);
                zos.closeEntry();
                return FileVisitResult.CONTINUE;
            }
        });
        zos.close();
    }
}

在 linux/mac 中，您可以使用以下命令測試新創建的 zip 文件，

解壓-t test.zip