Discussoes de Programacao e Tecnologia

[Resolvido] Problema na hora de carregar arquivo

6 respostas
Allan_Barcelos
Allan_Barcelos

Olá, estou criando um programa de agenda em java, o mesmo salva e carrega um arquivo binario, na parte de salvar ocorre um erro, mas salva normalmente e quando carrego o mesmo arquivo o netbeans acusa um erro:

java.io.InvalidClassException: javax.swing.JComponent; local class incompatible: stream classdesc serialVersionUID = 5670834184508236790, local class serialVersionUID = -1030230214076481435
	at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:562)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1583)
	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1667)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
	at java.io.ObjectInputStream.access$300(ObjectInputStream.java:188)
	at java.io.ObjectInputStream$GetFieldImpl.readFields(ObjectInputStream.java:2109)
	at java.io.ObjectInputStream.readFields(ObjectInputStream.java:519)
	at java.awt.Container.readObject(Container.java:3579)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	at Abertura.leObjeto(Abertura.java:227)
	at Abertura.jMenuItem3ActionPerformed(Abertura.java:178)
	at Abertura.access$200(Abertura.java:17)
	at Abertura$3.actionPerformed(Abertura.java:123)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1223)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1264)
	at java.awt.Component.processMouseEvent(Component.java:6263)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
	at java.awt.Component.processEvent(Component.java:6028)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2478)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
	at JanelaPrincipal.montaLista(JanelaPrincipal.java:38)
	at JanelaPrincipal.<init>(JanelaPrincipal.java:30)
	at Abertura.jMenuItem3ActionPerformed(Abertura.java:184)
	at Abertura.access$200(Abertura.java:17)
	at Abertura$3.actionPerformed(Abertura.java:123)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1223)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1264)
	at java.awt.Component.processMouseEvent(Component.java:6263)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
	at java.awt.Component.processEvent(Component.java:6028)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2478)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Meu método para gravação:

private static void gravaObjeto (File f, DataControl o){
        try	{
            FileOutputStream fos = new FileOutputStream (f);
            ObjectOutputStream os = new ObjectOutputStream(fos);
            os.flush();
            os.writeObject (o);
            os.close ();
        }catch (IOException e)  {
                System.out.println ("Erro ao gravar arquivo.");
        }
    }

Não faço ideia do que esta causando isso, as classes necessarias estão com implements de Serializable

Alguem sabe como posso resolver o problema ?

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6 Respostas

tondatto
tondatto

Das duas, uma:
Na propriedade serialVersionUID da classe serializada, você deve utilizar o mesmo valor numérico da classe que você gravou.

Ou você tem mais de uma JRE instalada no seu computador e por isto está dando algum tipo de conflito entre.

Allan_Barcelos
Allan_Barcelos

Mas o problema é que esta dando erro na hora se salvar tambem com IOExcpetion, só que não consigo ver um motivo para isso, acredito que o código para salvar esteja correto, e quando vou salvar o arquivo uso:

fc = new JFileChooser();
                    fc.setVisible(true);
                    fc.addChoosableFileFilter(new FiltroArquivo());
                    fc.setAcceptAllFileFilterUsed(false);
        	    int returnVal = fc.showSaveDialog(JanelaPrincipal.this);
	            if (returnVal == JFileChooser.APPROVE_OPTION) {
	                File file = fc.getSelectedFile();
	                File f = new File(file+".uni");
	                gravaObjeto(f, dc);
	                
	            }

O erro se da na linha de gravação do objeto, portanto, dentro do método grava objeto:

private static void gravaObjeto (File f, DataControl o){
        try	{
            FileOutputStream fos = new FileOutputStream (f);
            ObjectOutputStream os = new ObjectOutputStream(fos);
            os.flush();
            os.writeObject (o);  // Possui um erro aqui!
            os.close ();
        }catch (IOException e)  {
                System.out.println ("Erro ao gravar arquivo.");
        }
    }

Como saberei qual o problema? Ja que aparentemente esta tudo certo ?

Allan_Barcelos
Allan_Barcelos

Olá, retirei o método de gravaObjeto e coloquei o código direto no método, agora o erro esta com:

09/10/2012 10:56:31 JanelaPrincipal jMenuItem1ActionPerformed
SEVERE: null
java.io.NotSerializableException: javax.swing.GroupLayout
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
	at java.io.ObjectOutputStream.access$300(ObjectOutputStream.java:143)
	at java.io.ObjectOutputStream$PutFieldImpl.writeFields(ObjectOutputStream.java:1668)
	at java.io.ObjectOutputStream.writeFields(ObjectOutputStream.java:454)
	at java.awt.Container.writeObject(Container.java:3548)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
	at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
	at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146)
	at java.io.ObjectOutputStream.access$300(ObjectOutputStream.java:143)
	at java.io.ObjectOutputStream$PutFieldImpl.writeFields(ObjectOutputStream.java:1668)
	at java.io.ObjectOutputStream.writeFields(ObjectOutputStream.java:454)
	at java.awt.Container.writeObject(Container.java:3548)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
	at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
	at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146)
	at java.io.ObjectOutputStream.access$300(ObjectOutputStream.java:143)
	at java.io.ObjectOutputStream$PutFieldImpl.writeFields(ObjectOutputStream.java:1668)
	at java.io.ObjectOutputStream.writeFields(ObjectOutputStream.java:454)
	at java.awt.Container.writeObject(Container.java:3548)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
	at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
	at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146)
	at java.io.ObjectOutputStream.access$300(ObjectOutputStream.java:143)
	at java.io.ObjectOutputStream$PutFieldImpl.writeFields(ObjectOutputStream.java:1668)
	at java.io.ObjectOutputStream.writeFields(ObjectOutputStream.java:454)
	at java.awt.Container.writeObject(Container.java:3548)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
	at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
	at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
	at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
	at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
	at JanelaPrincipal.jMenuItem1ActionPerformed(JanelaPrincipal.java:413)
	at JanelaPrincipal.access$500(JanelaPrincipal.java:21)
	at JanelaPrincipal$6.actionPerformed(JanelaPrincipal.java:149)
	at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
	at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
	at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
	at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
	at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
	at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1223)
	at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1264)
	at java.awt.Component.processMouseEvent(Component.java:6263)
	at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
	at java.awt.Component.processEvent(Component.java:6028)
	at java.awt.Container.processEvent(Container.java:2041)
	at java.awt.Component.dispatchEventImpl(Component.java:4630)
	at java.awt.Container.dispatchEventImpl(Container.java:2099)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4574)
	at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
	at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
	at java.awt.Container.dispatchEventImpl(Container.java:2085)
	at java.awt.Window.dispatchEventImpl(Window.java:2478)
	at java.awt.Component.dispatchEvent(Component.java:4460)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
	at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
	at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)

Alguem sabe o motivo ?

tondatto
tondatto

Na classe que você vai serializar, todos os objetos devem implementar a interface Serializable.

Você está tentando gravar uma classe que possui componentes? É isso?
Julgo pela sua exception disparada tentando gravar um objeto JGroupLayout. Esta classe não é serializável.

Allan_Barcelos
Allan_Barcelos

Olá
Consegui resolver o problema, era porque dentro da minha classe principal estava a passar como atributo um objeto da interface, retirei o objeto dos atributos e resolveu o problema
Valeu

D
Diego_Francisco

Opa blz… To com um problema similar, quando vou ler um arquivo do excel da o seguinte erro:

Exception in thread “AWT-EventQueue-0” org.apache.poi.poifs.filesystem.OfficeXmlFileException: The supplied data appears to be in the Office 2007+ XML. You are calling the part of POI that deals with OLE2 Office Documents. You need to call a different part of POI to process this data (eg XSSF instead of HSSF)

at org.apache.poi.poifs.storage.HeaderBlockReader.(HeaderBlockReader.java:111)

at org.apache.poi.poifs.filesystem.POIFSFileSystem.(POIFSFileSystem.java:151)

at mentor.utilities.movimentofolha.InterligacaoExcelUtilities.leituraDeDados(InterligacaoExcelUtilities.java:55)

at mentor.utilities.movimentofolha.InterligacaoExcelUtilities.criarLancamentos(InterligacaoExcelUtilities.java:37)

segue o codigo:

Workbook wb ;
        HSSFSheet sheet ;            
        POIFSFileSystem fs =  new POIFSFileSystem(new FileInputStream(file));  ---------------------------------            
        wb  = new HSSFWorkbook(fs);

O erro ocorre na terceira linha

Criado 8 de outubro de 2012
Ultima resposta 11 de out. de 2012
Respostas 6
Participantes 3

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