java.io.NotSerializableException

我有这个异常,我不明白为什么会抛出该异常,或者应该如何处理。

try {

os.writeObject(element);

} catch (IOException e) {

e.printStackTrace();

}

哪里element是一个TransformGroup包含一些其他TransformGroups类的Atom的一个实例:

public class Atom extends Group implements Serializable{

float pozX,pozY;

Group group= new Group();

Color3f blue = new Color3f(new Color(255));

Color3f black = new Color3f(new Color(0));

Sphere AtSph=new Sphere();

public Atom(final float WEIGHT, final int BOUNDS,final float radius,Color3f color)

{

AppSetting ap= new AppSetting(color, black);

AtSph=new Sphere(radius,1,100,ap);

}

}

完整的错误日志:

java.io.NotSerializableException: javax.media.j3d.TransformGroup

at java.io.ObjectOutputStream.writeObject0(Unknown Source)

at java.io.ObjectOutputStream.writeObject(Unknown Source)

at cls.MolecularBuilder.addAtom(MolecularBuilder.java:511)

at cls.MolecularBuilder$Console.HidrogenItemActionPerformed(MolecularBuilder.java:897)

at cls.MolecularBuilder$Console$2.actionPerformed(MolecularBuilder.java:746)

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$200(Unknown Source)

at java.awt.EventQueue$3.run(Unknown Source)

at java.awt.EventQueue$3.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)

at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)

at java.awt.EventQueue$4.run(Unknown Source)

at java.awt.EventQueue$4.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.security.ProtectionDomain$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)

注意:AppSetting(在Atom类中)只是扩展Appearance的自定义类。

回答:

对象的字段又包含其字段,其中某些字段未实现Serializable。就你而言,令人反感的课程是TransformGroup。怎么解决呢?

  • 如果班级是你的,那就上 Serializable
  • 如果班级是第三方,但你不需要序列化形式,请将字段标记为 transient
  • 如果你需要其数据并且是第三方,请考虑其他序列化方式,例如JSON,XML,BSON,MessagePack等,你可以在不修改其定义的情况下序列化第3方对象。

以上是 java.io.NotSerializableException 的全部内容, 来源链接: utcz.com/qa/423108.html

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