2

反序列化对象时出现以下异常：

java.io.OptionalDataException
    java.io.ObjectInputStream.readObject0(Unknown Source)
    java.io.ObjectInputStream.readObject(Unknown Source)
    java.util.HashSet.readObject(Unknown Source)
    sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)

我用来序列化和反序列化对象的代码如下：

public class ObjectToFile
{
    public static void save(Object obj, String name)
    {
        FileOutputStream fos;
        try
        {
            ODebug.Write(Level.INFO, "SER-0049: Saving objects from file...");
            fos = new FileOutputStream(".//data//" + name);

            ObjectOutputStream oos = new ObjectOutputStream(new BufferedOutputStream(fos));
            oos.writeObject(obj);

            oos.close();
            fos.close();
        }
        catch (Exception e)
        {
            ODebug.Write(Level.SEVERE, "SER-0000: Caught exception in save()", e);
        }
    }

    public static Object read(String name)
    {
        FileInputStream fis;
        Object obj;

        try
        {
            ODebug.Write(Level.INFO, "SER-0049: Reading objects from file...");

            fis = new FileInputStream(".//data//" + name);
            ObjectInputStream ois = new ObjectInputStream(new BufferedInputStream(fis));
            obj = ois.readObject();

            ois.close();
            fis.close();

            return obj;
        }
        catch (Exception e)
        {
            ODebug.Write(Level.SEVERE, "SER-0001: Caught exception in read()", e);
        }

        return null;
    }
}

我试图序列化/反序列化的对象是一个哈希图，如下所示：

public static HashMap<Integer, Document> ProductList = new HashMap<>();

Document 类具有以下定义和一些方法。

public class Document implements Serializable
{
     private static final long  serialVersionUID    = 1L;
     public Integer documentID;
     public DocumentZone titleZone = new DocumentZone();
     public DocumentZone    bodyZone = new DocumentZone();
}

请帮忙！

4

0 回答 0