NotSerializableException

基本上，我写了一个程序，它将形状绘制到屏幕上，并将每个形状保存到ArrayList中。我想要做的是弄清楚如何将ArrayList保存到一个文件中，这样我可以稍后再调用它并编辑已经存在的形状。NotSerializableException

所以我一直有一些麻烦，搞清楚为什么我一直在得到一个NotSerializableException，当我已经对象形式可序列化。

下面是我的代码和Shape对象的保存部分。

save.addActionListener(new ActionListener(){ 
    public void actionPerformed(ActionEvent e){ 
    int returnVal = fc.showSaveDialog(BallWorld.this); 
    if(returnVal == JFileChooser.APPROVE_OPTION){ 
     File file = fc.getSelectedFile(); 
     ArrayList list = bp.shapes; 
     FileOutputStream fos = null; 
     ObjectOutputStream oos = null; 
     try{ 
     fos = new FileOutputStream(file); 
     oos = new ObjectOutputStream(fos); 
     oos.writeObject(list); 
     oos.close(); 
     } 
     catch(IOException ex){ 
     ex.printStackTrace(); 
     } 
    } 
    } 
});

public class Shape implements Serializable{ 
    int radius; 
    Point center; 
    Color color; 
    int sides; 
    Polygon shape; 
    public Shape(int _radius, Point _center, Color _color, int _sides){ 
     radius = _radius; 
     center = _center; 
     color = _color; 
     sides = _sides; 
    } 
    public void draw(Graphics g){ 
     Graphics2D g2d = (Graphics2D) g; 
     g2d.setColor(color); 
     shape = new Polygon(); 
     if(sides != 0 && sides != 4){ 
     if(sides % 2 == 0){ 
      if(sides/2 % 2 == 0){ 
      for(int i = 0; i < sides; i++){ 
       shape.addPoint((int) (center.x + radius * Math.cos(i * 2 * Math.PI/sides - Math.PI/sides)), (int) (center.y + radius * Math.sin(i * 2 * Math.PI/sides - Math.PI/sides))); 
      } 
      } 
      else if(sides/2 % 1 == 0){ 
      for(int i = 0; i < sides; i++){ 
       shape.addPoint((int) (center.x + radius * Math.cos(i * 2 * Math.PI/sides)), (int) (center.y + radius * Math.sin(i * 2 * Math.PI/sides))); 
      } 
      } 
     } 
     else{ 
      for(int i = 0; i < sides; i++){ 
      shape.addPoint((int) (center.x + radius * Math.cos(i * 2 * Math.PI/sides - Math.PI/2)), (int) (center.y + radius * Math.sin(i * 2 * Math.PI/sides - Math.PI/2))); 
      } 
     } 
     g2d.fillPolygon(shape); 
     } 
     else if(sides == 4){ 
     g2d.fillRect(center.x - radius, center.y - radius, radius * 2, radius * 2); 
     } 
     else{ 
     g2d.fillOval(center.x - radius, center.y - radius, radius * 2, radius * 2); 
     } 
     repaint(); 
    } 
    public boolean contains(Point p){ 
     if(sides == 0){ 
     if(center.distance(p) <= radius){ 
      return true; 
     } 
     } 
     else if(sides == 4){ 
     if(p.x <= center.x + radius && p.x >= center.x - radius && p.y <= center.y + radius && p.y >= center.y - radius){ 
      return true; 
     } 
     } 
     else{ 
     if(shape.contains(p)){ 
      return true; 
     } 
     } 
     return false; 
    } 
    }

java.io.NotSerializableException: javax.swing.plaf.basic.BasicFileChooserUI$AcceptAllFileFilter 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.writeArray(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source) 
at javax.swing.JComboBox.writeObject(Unknown Source) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) 
at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source) 
at javax.swing.JLabel.writeObject(Unknown Source) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) 
at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.writeArray(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.writeObject(Unknown Source) 
at javax.swing.ArrayTable.writeArrayTable(Unknown Source) 
at javax.swing.JComponent.writeObject(Unknown Source) 
at sun.reflect.GeneratedMethodAccessor11.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) 
at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
at java.io.ObjectOutputStream.defaultWriteObject(Unknown Source) 
at java.awt.Window.writeObject(Unknown Source) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) 
at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.writeObject(Unknown Source) 
at java.awt.Window.writeObject(Unknown Source) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) 
at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.defaultWriteFields(Unknown Source) 
at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.writeObject(Unknown Source) 
at java.util.ArrayList.writeObject(Unknown Source) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at java.io.ObjectStreamClass.invokeWriteObject(Unknown Source) 
at java.io.ObjectOutputStream.writeSerialData(Unknown Source) 
at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source) 
at java.io.ObjectOutputStream.writeObject0(Unknown Source) 
at java.io.ObjectOutputStream.writeObject(Unknown Source) 
at BallWorld$2.actionPerformed(BallWorld.java:112) 
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) 
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source) 
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source) 
at javax.swing.DefaultButtonModel.setPressed(Unknown Source) 
at javax.swing.AbstractButton.doClick(Unknown Source) 
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source) 
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source) 
at java.awt.Component.processMouseEvent(Unknown Source) 
at javax.swing.JComponent.processMouseEvent(Unknown Source) 
at java.awt.Component.processEvent(Unknown Source) 
at java.awt.Container.processEvent(Unknown Source) 
at java.awt.Component.dispatchEventImpl(Unknown Source) 
at java.awt.Container.dispatchEventImpl(Unknown Source) 
at java.awt.Component.dispatchEvent(Unknown Source) 
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source) 
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source) 
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source) 
at java.awt.Container.dispatchEventImpl(Unknown Source) 
at java.awt.Window.dispatchEventImpl(Unknown Source) 
at java.awt.Component.dispatchEvent(Unknown Source) 
at java.awt.EventQueue.dispatchEventImpl(Unknown Source) 
at java.awt.EventQueue.access$000(Unknown Source) 
at java.awt.EventQueue$1.run(Unknown Source) 
at java.awt.EventQueue$1.run(Unknown Source) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source) 
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source) 
at java.awt.EventQueue$2.run(Unknown Source) 
at java.awt.EventQueue$2.run(Unknown Source) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown Source) 
at java.awt.EventQueue.dispatchEvent(Unknown Source) 
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) 
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) 
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) 
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
at java.awt.EventDispatchThread.pumpEvents(Unknown Source) 
at java.awt.EventDispatchThread.run(Unknown Source)

来源

2012-01-06 lordraiden15

确保你所有的属性形状对象序列化太像点，颜色等.. – 2012-01-06 21:49:59

我已经检查的所有这些类的，和他们都是可序列化的 – lordraiden15 2012-01-06 21:51:11

你看看这个：http://stackoverflow.com/questions/678481/cannot-serialize-deserialize-arraylist – 2012-01-06 21:54:03

根据您正在为repaint()在外形的号召，我猜，这是在内部类。因此它有一个引用其封闭实例的隐藏变量。它会尝试将该对象与自身一起序列化。外部类是可序列化的吗？或者更好的是，Shape可以变成一个普通的顶级课程吗？

来源

2012-01-06 22:34:25

为了避免NotSerializableException确保：

您类实现Serializable
所有非原始成员实现Serializable接口（或者是短暂的，而不是）
如果你的类是内部类它是静态的或外部类实现可序列化的

除此之外，还需要为每个Serializable类定义serialVersionUID。检查三种情况下都上面加：

所有序列化超
如果你的类是匿名类，定义它有太多

注：您的代码可能没有的serialVersionUID有时候运行但read the last paragraph in Serializable's javadoc了解为什么它会成为一个问题，取决于环境。

有一个虚拟机选项可用于向异常添加详细信息。它显示了根和嵌套类不能序列化：

-Dsun.io.serialization.extendedDebugInfo=true

来源

2014-08-19 02:53:40 Vituel

NotSerializableException

回答

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