Java zipfile-zipexception：打开zip文件时出错

Question

我从服务器收到一个zip文件，它必须被处理。我可以手动解压缩它。所以我相信zip文件没有被破坏。

下面的代码从Zip文件中读取文件而不解压它。

import java.io.File;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

public class ZipFileReader {
    public static void main(String[] args) throws Exception{
        File file = new File("/Users/wire/data.zip"); 
        ZipFile zipFile = new ZipFile(file.getPath());//Getting error here
        for (Enumeration e = zipFile.entries(); e.hasMoreElements(); ) {
            ZipEntry entry = (ZipEntry) e.nextElement();
            System.out.println(entry.getName());
        }
    }
}

Exception in thread "main" java.util.zip.ZipException: error in opening zip file
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:225)
    at java.util.zip.ZipFile.<init>(ZipFile.java:155)
    at java.util.zip.ZipFile.<init>(ZipFile.java:126)
    at com.log.ZipFileReader.main(ZipFileReader.java:11)

data/
data/file/
data/file/log.txt
__MACOSX/
__MACOSX/data/
__MACOSX/data/file/
__MACOSX/data/file/._log.txt

注意：我从服务器收到的zip文件大小为5MB。但是一旦我解压缩并压缩回来，新的zip文件大小变成了8MB。

增加：

Apples-MacBook-Pro:~ test$ unzip -v data.zip
Archive:  data.zip
  End-of-central-directory signature not found.  Either this file is not
  a zipfile, or it constitutes one disk of a multi-part archive.  In the
  latter case the central directory and zipfile comment will be found on
  the last disk(s) of this archive.
unzip:  cannot find zipfile directory in one of data.zip or
        data.zip.zip, and cannot find data.zip.ZIP, period.

Answer 1

根据注释，该文件是一个名称错误的.tar.bz2文件，而不是真正的.zip文件。根据这个答案和这个答案，可以用Apache Commons压缩库解包。