如果要读取嵌套的.zip文件，可以尝试使用 ZipInputStream （就像已经提到的）检查一下 ZipEntry （s） 也是一个*.zip文件，在这种情况下，它可以作为下一个.zip文件递归读取。比如：

private static void readZipInputStream(
        InputStream inputStream, BiConsumer<ZipEntry, ByteArrayOutputStream> consumerFunction) throws IOException {

    try (ZipInputStream zipInput = new ZipInputStream(inputStream)) {
        ZipEntry entry;
        while ((entry = zipInput.getNextEntry()) != null) {
            ByteArrayOutputStream outStream = new ByteArrayOutputStream();
            byte[] buffer = new byte[1024];
            int length;
            while ((length = zipInput.read(buffer)) != -1) {
                outStream.write(buffer, 0, length);
            }

            if (entry.getName().endsWith(".zip")) {
                // need to go deeper...
                ByteArrayInputStream inStream = new ByteArrayInputStream(outStream.toByteArray());
                readZipInputStream(inStream, consumerFunction);
            } else {
                // do something...
                consumerFunction.accept(entry, outStream);
            }
        }
    }
}

例如，有一个结构如下的zip文件：

file.zip
├─1+2.zip
│ ├─1.zip
│ │ └─1.txt
│ └─2.zip
│   └─2.txt
└─3.zip
  └─3.txt

以及使用 readZipInputStream 功能如下：

public class Application {

    public static void main(String[] args) throws IOException {
        String path = "file.zip";
        try (FileInputStream inputStream = new FileInputStream(Paths.get(path).toFile())) {
            readZipInputStream(
                    inputStream,
                    (entry, outputStream) -> {
                        System.out.println(entry.getName());
                        System.out.println("--------------------------------");
                        System.out.println(outputStream.toString());
                        System.out.println("--------------------------------");
                    }
            );
        }
    }
}

将打印三个.txt文件的内容：

1.txt
--------------------------------
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat.
--------------------------------
2.txt
--------------------------------
- Integer vel sem consectetur, ullamcorper leo quis, consequat mauris.
- Nulla efficitur sapien at velit fermentum condimentum.
- Vestibulum elementum nulla ut ipsum tempus, ut molestie sem sollicitudin.
--------------------------------
3.txt
--------------------------------
Morbi tincidunt ornare mi. Sed id risus tortor. Interdum et malesuada 
fames ac ante ipsum primis in faucibus. Pellentesque tincidunt, 
nulla a interdum porta, orci elit ultricies leo, in maximus orci 
tortor pulvinar est. Curabitur eget fermentum risus. Vestibulum euismod 
convallis eros, nec blandit neque blandit at.
--------------------------------

java类java.util.zip.zipinputstream允许您将数据从zip存档读取到字节数组中。