将文件添加到ZIP文件

您不能压缩文件夹，只能压缩文件。要压缩文件夹，必须手动添加所有子文件。我写了本课来完成这项工作。您可以免费获得它：)

用法是这样的：

List<File> sources = new ArrayList<File>();sources.add(tobackup);Packager.packZip(new File(zipName), sources);

这是课程：

import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.util.List;import java.util.zip.Deflater;import java.util.zip.ZipEntry;import java.util.zip.ZipOutputStream;public class Packager{    public static void packZip(File output, List<File> sources) throws IOException    {        System.out.println("Packaging to " + output.getName());        ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(output));        zipOut.setLevel(Deflater.DEFAULT_COMPRESSION);        for (File source : sources)        { if (source.isDirectory()) {     zipDir(zipOut, "", source); } else {     zipFile(zipOut, "", source); }        }        zipOut.flush();        zipOut.close();        System.out.println("Done");    }    private static String buildPath(String path, String file)    {        if (path == null || path.isEmpty())        { return file;        } else        { return path + "/" + file;        }    }    private static void zipDir(ZipOutputStream zos, String path, File dir) throws IOException    {        if (!dir.canRead())        { System.out.println("Cannot read " + dir.getCanonicalPath() + " (maybe because of permissions)"); return;        }        File[] files = dir.listFiles();        path = buildPath(path, dir.getName());        System.out.println("Adding Directory " + path);        for (File source : files)        { if (source.isDirectory()) {     zipDir(zos, path, source); } else {     zipFile(zos, path, source); }        }        System.out.println("Leaving Directory " + path);    }    private static void zipFile(ZipOutputStream zos, String path, File file) throws IOException    {        if (!file.canRead())        { System.out.println("Cannot read " + file.getCanonicalPath() + " (maybe because of permissions)"); return;        }        System.out.println("Compressing " + file.getName());        zos.putNextEntry(new ZipEntry(buildPath(path, file.getName())));        FileInputStream fis = new FileInputStream(file);        byte[] buffer = new byte[4092];        int byteCount = 0;        while ((byteCount = fis.read(buffer)) != -1)        { zos.write(buffer, 0, byteCount); System.out.print('.'); System.out.flush();        }        System.out.println();        fis.close();        zos.closeEntry();    }}

请享用！

编辑 ：要检查程序是否仍在忙，可以添加我用（*）标记的三行

编辑2 ：尝试新的代码。在我的平台上，它运行正确（OS X）。我不确定，但是在Windows中，AppData中的文件可能会有一些有限的读取权限。