反序列化列表 - >无效流头

Question

我有一个简单的类Ksiazka并尝试序列化和反序列化它的列表。首先，我需要从文件“bibdefaout.txt”中加载它。我不断收到一个错误：

Exception in thread "main" java.io.StreamCorruptedException: invalid stream header: 5AB36F64 
    at java.io.ObjectInputStream.readStreamHeader(Unknown Source) 
    at java.io.ObjectInputStream.<init>(Unknown Source) 
    at zadanie.Zadanie.main(Zadanie.java:17) 

请告诉我，我做错了：

public class Ksiazka implements Serializable{ 
    protected String tytul; 
    protected String autor; 
    protected Integer rok; 
    protected boolean wypozyczenie; 

    public Ksiazka(String tytul, String autor, Integer rok, boolean wypozyczenie) { 
     this.tytul = tytul; 
     this.autor = autor; 
     this.rok = rok; 
     this.wypozyczenie = wypozyczenie; 
    } 
} 

public class Zadanie { 
    public static void main(String[] args) 
      throws FileNotFoundException,IOException, ClassNotFoundException { 
     List<Ksiazka> lista; 
     // THE FOLLOWING LINE PRODUCES AN ERROR: 
     FileInputStream fin=new FileInputStream("bibdefault.txt"); 
     ObjectInputStream oin=new ObjectInputStream(fin); 
     lista=(List<Ksiazka>)oin.readObject(); 
     fin.close(); 
     oin.close(); 

     try { 
      ObjectOutputStream out=new ObjectOutputStream(new BufferedOutputStream(new FileOutputStream("bibloteka.out"))); 
      out.writeObject(daneLista); 
      out.close(); 
     } catch (FileNotFoundException e) { 
      e.printStackTrace(); 
     } catch (IOException e) { 
      e.printStackTrace(); 
     } 
    } 
} 

Answer 1

文件被写入错误，不包含正确的序列化数据。它也没有发生在你声称的行上，因为它不能抛出异常。