将byteArrays写入文件问题

Question

所以我有几种方法，当我使用断言测试对它们进行测试时，它失败了，我不能为我的生活找出原因，所以如果有人可以帮助我，我会＆＃39;我非常欣赏它。

这些方法应该将块写入现有文件，然后读取所述块并确保断言有效。

写入方法：

public void writeBlock(int blockNum, AbstractDBFile f, AbstractBlock b)
            throws IOException {

        DBFile dbf = (DBFile) f;
        Block blk = (Block) b;

        if (blockNum >= dbf.totalNumOfBlocks){
            dbf.totalNumOfBlocks++;
        }
        int header = 4096;
        RandomAccessFile file = new RandomAccessFile(dbf.fileName, "rw");
        file.seek(header + (blockNum) * 4096);
        file.write(blk.getData(), 0, 4096);
        file.close();
        f.curBlockPos = blockNum + 1;


    }

阅读方法：

public AbstractBlock readBlock(int blockNum, AbstractDBFile f)
        throws IOException {

    f.setCurBlockPos(blockNum); 
    DBFile f2 = new DBFile();
    f2.setCurBlockPos(f.getCurBlockPos());
    f2.setFileName(f.getFileName());
    Block block = new Block();

    int currentByte = f2.getCurBlockPos() * 4096;
    byte[] data = new byte[4096];
    String filename = f2.getFileName();
    File ourFile = new File(filename);

    RandomAccessFile file = new RandomAccessFile(ourFile, "r");
    FileChannel inChannel = file.getChannel();
    ByteBuffer bb = ByteBuffer.allocate(currentByte);
    inChannel.read(bb);
    while(inChannel.read(bb)>0){
    bb.flip();
    for (int i =0; i<bb.limit(); i++){
        data[i]=bb.get();
        block.setData(data);
    }
    bb.clear();
}
    inChannel.close();
    file.close();
    return block;

}

Block Class：

public class Block extends AbstractBlock {

    @Override
    public byte[] getData() {
        // TODO Auto-generated method stub
        /*byte[] data = new byte [4096];
        data[0] = 10;
        data[5] = 20;*/
        return data;
    }

    @Override
    public void setData(byte[] d) throws IOException {
        int freeByte = -1;

        for(int i = 0; i < data.length && freeByte < 0; i++)
            if(data[i] == 0)
                freeByte = i;

        for(int i = freeByte, j = 0; j < d.length; i++, j++)
            data[i] = d[j];
    }
    }

断言测试：

 public void testWriteRead() throws IOException {
           StorageManager manager = new StorageManager();
           DBFile file = (DBFile)manager.createFile("File1");

           byte [] write = new byte[4096];
           write[0] = 10;
           write[5] = 20;

           Block block = new Block();
           block.setData(write);

           manager.writeBlock(0, file, block);

           Block b = (Block) manager.readBlock(0, file);
           assertTrue(areEqual(write,b.getData()));
       }
private boolean areEqual(byte [] array1, byte [] array2) {
           if(array1.length != array2.length)
               return false;
           for(int i = 0 ; i < array1.length ; i++)
               if(array1[i] != array2[i])
                   return false;
           return true;
       }

如果我不绝望，我不会这样做，任何帮助都会非常感激。