文件夹中的项目压缩为items.dat和.idx

Question

你好，我试图为物品制作一个压缩器，但我似乎不太明白，我有一个原始文件，我正在测试，例如（items.dat，idx）我的解压缩器将其全部解压缩，但是当我使用压缩器时然后将其测试到一个项目会给我一个错误。

    java.io.EOFException

Extracted: 876 models!
    at java.io.DataInputStream.readFully(Unknown Source)
    at java.io.DataInputStream.readFully(Unknown Source)
    at ModelRipper.decompress(ModelRipper.java:46)
    at ModelRipper.main(ModelRipper.java:27)

我的第46行： Line with method

我的解压缩方法：

public static void decompress() {
    try {
        GZIPInputStream gzipDataFile = new GZIPInputStream(new FileInputStream(signlink.findcachedir() + userInput + ".dat"));
        DataInputStream dataFile = new DataInputStream(gzipDataFile);
        GZIPInputStream gzipIndexFile = new GZIPInputStream(new FileInputStream(signlink.findcachedir() + userInput + ".idx"));
        DataInputStream indexFile = new DataInputStream(gzipIndexFile);
        int length = indexFile.readInt();
        for(int i = 0; i < length; i++) {
            int id = indexFile.readInt();
            int invlength = indexFile.readInt();
            byte[] data = new byte[invlength];
            dataFile.readFully(data);
            System.out.println(id);
            System.out.println(invlength);
            Model.method460(data, id);
            FileOutputStream fos = new FileOutputStream("./MODELS1/"+id+".dat");
            modelsExtracted++;
            fos.write(data);
            fos.flush();
            fos.close();
        }
        indexFile.close();
        dataFile.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

我的压缩方法：

public static void compress() throws FileNotFoundException, IOException {
    try {
        File file = new File("./MODELS/");

        GZIPOutputStream gzipDataFile = new GZIPOutputStream(new FileOutputStream("./" + userInput + ".dat"));
        DataOutputStream dataFile = new DataOutputStream(gzipDataFile);
        GZIPOutputStream gzipIndexFile = new GZIPOutputStream(new FileOutputStream("./" + userInput + ".idx"));
        DataOutputStream indexFile = new DataOutputStream(gzipIndexFile);

        File[] fileArray = file.listFiles();
        for (int y = 0; y < fileArray.length; y++) {
            String s = fileArray[y].getName();
            byte[] buffer = ReadFile("./MODELS/" + s);
            modelsExtracted++;
            int invlength = (int) fileArray[y].length();
            int id = Integer.parseInt(getFileNameWithoutExtension(s));
            indexFile.writeInt(id);
            //indexFile.flush();
            indexFile.writeInt(invlength);
            indexFile.flush();
            System.out.println(id);
            System.out.println(invlength);
            dataFile.write(buffer);
            dataFile.flush();
        }

        indexFile.close();
        dataFile.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}