如何拖放包含ImageIcon的JTable行？
[英]How to drag & drop JTable row that includes an ImageIcon?
问题描述
I have a JTable with several columns including a column of ImageIcon s. 
我有一个包含几列的JTable ，其中包括ImageIcon的列。 My other JTable s that do not have ImageIcon s work fine with my drag & drop code. 我其他没有ImageIcon的JTable可以与我的拖放代码一起正常工作。 However when an ImageIcon is in the row, I get a serialization error. 但是，当ImageIcon在该行中时，出现序列化错误。
// Drag and drop
setDragEnabled(true);
setDropMode(INSERT_ROWS);
class TableRowTransferHandler extends TransferHandler
{
private final DataFlavor localObjectFlavor =
new ActivationDataFlavor(Object[].class,
DataFlavor.javaJVMLocalObjectMimeType);
private JTable tbl = null;
public TableRowTransferHandler(JTable tbl)
{
this.tbl = tbl;
}
@Override
protected Transferable createTransferable(JComponent c)
{
// Store the source selected rows.
JTable tableSource = (JTable)c;
DefaultTableModel model = (DefaultTableModel)tableSource.
getModel();
ArrayList<Object> listSourceRows = new ArrayList<>();
int selectedRowCount = ((JTable)c).getSelectedRowCount();
int[] selectedRowsIndexes = ((JTable)c).getSelectedRows();
for (int i = 0; i < selectedRowCount; i++)
{
int modelRowIdx = tableSource.convertRowIndexToModel(
selectedRowsIndexes[i]);
listSourceRows.add(model.getDataVector().elementAt(
modelRowIdx));
}
return(new DataHandler(listSourceRows.toArray(),
localObjectFlavor.getMimeType()));
}
@Override
public boolean canImport(TransferSupport info)
{
return (tbl.getDragEnabled() &&
info.getComponent() == tbl &&
info.isDrop() &&
info.isDataFlavorSupported(localObjectFlavor));
}
@Override
public int getSourceActions(JComponent c)
{
return TransferHandler.MOVE;
}
@Override
public boolean importData(TransferSupport info)
{
// Put the stored rows into the destination table.
JTable tableDestination = (JTable) info.getComponent();
DefaultTableModel model = (DefaultTableModel)tableDestination.
getModel();
JTable.DropLocation dropLoc = (JTable.DropLocation)info.
getDropLocation();
int rowDropIndex = dropLoc.getRow();
int max = getRowCount();
if (rowDropIndex < 0 || rowDropIndex > max)
{
rowDropIndex = max;
}
try
{
// Insert the stored rows into the destination table.
Object[] values = (Object[])info.getTransferable().
getTransferData(localObjectFlavor);
// LIFO
for (int i = values.length - 1; i >= 0; i--)
{
Object value = values[i];
model.insertRow(rowDropIndex, (Vector)value);
}
return(true);
}
catch (UnsupportedFlavorException | IOException e)
{
e.printStackTrace();
}
return(false);
}
@Override
protected void exportDone(JComponent src,
Transferable t,
int action)
{
// Remove the selected rows from the source table.
JTable tableSource = (JTable)src;
DefaultTableModel model = (DefaultTableModel) tableSource.
getModel();
int selectedRowCount = tableSource.getSelectedRowCount();
int[] selectedViewRows = tableSource.getSelectedRows();
int[] selectedModelRows = new int[tableSource.
getSelectedRowCount()];
// Convert from view to model
for(int i = 0; i < selectedRowCount; i++)
{
selectedModelRows[i] = convertRowIndexToModel(
selectedViewRows[i]);
}
Arrays.sort(selectedModelRows);
// Remove rows from the bottom up so the indexes don't change)
for (int i = selectedRowCount - 1; 0 <= i ; i--)
{
model.removeRow(selectedModelRows[i]);
}
}
}
setTransferHandler(new TableRowTransferHandler(this));
}
Here is the exception: 这是例外：
java.io.NotSerializableException:
javax.swing.plaf.synth.SynthTableHeaderUI
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1183)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:440)
at javax.swing.JComponent.writeObject(JComponent.java:5534)
at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
at javax.swing.event.EventListenerList.writeObject(EventListenerList.java:258)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1508)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:440)
at javax.swing.JTable.writeObject(JTable.java:5845)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1547)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:440)
at javax.swing.ImageIcon.writeObject(ImageIcon.java:497)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1377)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1173)
at java.io.ObjectOutputStream.access$300(ObjectOutputStream.java:162)
at java.io.ObjectOutputStream$PutFieldImpl.writeFields(ObjectOutputStream.java:1706)
at java.io.ObjectOutputStream.writeFields(ObjectOutputStream.java:481)
at java.util.Vector.writeObject(Vector.java:1073)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1495)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1431)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1177)
at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1377)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1173)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
at sun.awt.datatransfer.TransferableProxy.getTransferData(TransferableProxy.java:83)
at java.awt.dnd.DropTargetContext$TransferableProxy.getTransferData(DropTargetContext.java:376)
at gov.wreckingball.wbs.GUIUtils.GUIUtilWBTable$1TableRowTransferHandler.importData(GUIUtilWBTable.java:852)
at javax.swing.TransferHandler$DropHandler.drop(TransferHandler.java:1536)
at java.awt.dnd.DropTarget.drop(DropTarget.java:450)
at javax.swing.TransferHandler$SwingDropTarget.drop(TransferHandler.java:1274)
at sun.awt.dnd.SunDropTargetContextPeer.processDropMessage(SunDropTargetContextPeer.java:544)
at sun.awt.X11.XDropTargetContextPeer.processDropMessage(XDropTargetContextPeer.java:184)
at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchDropEvent(SunDropTargetContextPeer.java:858)
at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchEvent(SunDropTargetContextPeer.java:782)
at sun.awt.dnd.SunDropTargetEvent.dispatch(SunDropTargetEvent.java:48)
at java.awt.Component.dispatchEventImpl(Component.java:4727)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832)
at java.awt.LightweightDispatcher.processDropTargetEvent(Container.java:4566)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4417)
at java.awt.Container.dispatchEventImpl(Container.java:2273)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:154)
at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182)
at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:219)
at java.awt.Dialog.show(Dialog.java:1082)
at java.awt.Component.show(Component.java:1655)
at java.awt.Component.setVisible(Component.java:1607)
at java.awt.Window.setVisible(Window.java:1014)
at java.awt.Dialog.setVisible(Dialog.java:1005)
at gov.wreckingball.wbs.MissionPlannerConsole.Main.runMain(Main.java:88)
at gov.wreckingball.wbs.MissionPlannerConsole.Main.access$000(Main.java:17)
at gov.wreckingball.wbs.MissionPlannerConsole.Main$1.run(Main.java:27)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:312)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:703)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at javax.swing.plaf.basic.BasicTableUI.getPreferredSize(BasicTableUI.java:1728)
at javax.swing.JComponent.getPreferredSize(JComponent.java:1660)
at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:790)
at java.awt.Container.layout(Container.java:1503)
at java.awt.Container.doLayout(Container.java:1492)
at java.awt.Container.validateTree(Container.java:1688)
at java.awt.Container.validate(Container.java:1623)
at javax.swing.JViewport.validateView(JViewport.java:485)
at javax.swing.JViewport.scrollRectToVisible(JViewport.java:396)
at javax.swing.JComponent.scrollRectToVisible(JComponent.java:3107)
at gov.wreckingball.wbs.MissionConsoleManager.MCMMasterHeadersTablePanel$9.valueChanged(MCMMasterHeadersTablePanel.java:1478)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:184)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:164)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:211)
at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:405)
at javax.swing.DefaultListSelectionModel.changeSelection(DefaultListSelectionModel.java:415)
at javax.swing.DefaultListSelectionModel.removeSelectionIntervalImpl(DefaultListSelectionModel.java:576)
at javax.swing.DefaultListSelectionModel.clearSelection(DefaultListSelectionModel.java:420)
at javax.swing.JTable.restoreSortingSelection(JTable.java:4210)
at javax.swing.JTable.access$500(JTable.java:221)
at javax.swing.JTable$SortManager.restoreSelection(JTable.java:4023)
at javax.swing.JTable$SortManager.processChange(JTable.java:3997)
at javax.swing.JTable.sortedTableChanged(JTable.java:4129)
at javax.swing.JTable.tableChanged(JTable.java:4395)
at javax.swing.table.AbstractTableModel.fireTableChanged(AbstractTableModel.java:296)
at javax.swing.table.AbstractTableModel.fireTableRowsDeleted(AbstractTableModel.java:261)
at javax.swing.table.DefaultTableModel.removeRow(DefaultTableModel.java:464)
at gov.wreckingball.wbs.GUIUtils.GUIUtilWBTable$1TableRowTransferHandler.exportDone(GUIUtilWBTable.java:899)
at javax.swing.TransferHandler$DragHandler.dragDropEnd(TransferHandler.java:1642)
at java.awt.dnd.DragSourceContext.dragDropEnd(DragSourceContext.java:435)
at sun.awt.dnd.SunDragSourceContextPeer$EventDispatcher.run(SunDragSourceContextPeer.java:487)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:312)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:703)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:154)
at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182)
at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:219)
at java.awt.Dialog.show(Dialog.java:1082)
at java.awt.Component.show(Component.java:1655)
at java.awt.Component.setVisible(Component.java:1607)
at java.awt.Window.setVisible(Window.java:1014)
at java.awt.Dialog.setVisible(Dialog.java:1005)
at gov.wreckingball.wbs.MissionPlannerConsole.Main.runMain(Main.java:88)
at gov.wreckingball.wbs.MissionPlannerConsole.Main.access$000(Main.java:17)
at gov.wreckingball.wbs.MissionPlannerConsole.Main$1.run(Main.java:27)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:312)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:703)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at javax.swing.plaf.basic.BasicTableUI.getPreferredSize(BasicTableUI.java:1728)
at javax.swing.JComponent.getPreferredSize(JComponent.java:1660)
at javax.swing.ScrollPaneLayout.layoutContainer(ScrollPaneLayout.java:790)
at java.awt.Container.layout(Container.java:1503)
at java.awt.Container.doLayout(Container.java:1492)
at java.awt.Container.validateTree(Container.java:1688)
at java.awt.Container.validate(Container.java:1623)
at javax.swing.RepaintManager$2.run(RepaintManager.java:691)
at javax.swing.RepaintManager$2.run(RepaintManager.java:689)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at javax.swing.RepaintManager.validateInvalidComponents(RepaintManager.java:688)
at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1676)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:312)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:703)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:154)
at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182)
at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:219)
at java.awt.Dialog.show(Dialog.java:1082)
at java.awt.Component.show(Component.java:1655)
at java.awt.Component.setVisible(Component.java:1607)
at java.awt.Window.setVisible(Window.java:1014)
at java.awt.Dialog.setVisible(Dialog.java:1005)
at gov.wreckingball.wbs.MissionPlannerConsole.Main.runMain(Main.java:88)
at gov.wreckingball.wbs.MissionPlannerConsole.Main.access$000(Main.java:17)
at gov.wreckingball.wbs.MissionPlannerConsole.Main$1.run(Main.java:27)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:312)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:703)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at javax.swing.plaf.synth.SynthLookAndFeel$Handler.repaintIfBackgroundsDiffer(SynthLookAndFeel.java:965)
at javax.swing.plaf.synth.SynthLookAndFeel$Handler.propertyChange(SynthLookAndFeel.java:926)
at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
at java.awt.KeyboardFocusManager.firePropertyChange(KeyboardFocusManager.java:1426)
at java.awt.KeyboardFocusManager.setGlobalFocusOwner(KeyboardFocusManager.java:572)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:590)
at java.awt.Component.dispatchEventImpl(Component.java:4742)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.SentEvent.dispatch(SentEvent.java:70)
at java.awt.DefaultKeyboardFocusManager$DefaultKeyboardFocusManagerSentEvent.dispatch(DefaultKeyboardFocusManager.java:216)
at java.awt.DefaultKeyboardFocusManager.sendMessage(DefaultKeyboardFocusManager.java:243)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:687)
at java.awt.Component.dispatchEventImpl(Component.java:4742)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4698)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:735)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.SequencedEvent.dispatch(SequencedEvent.java:128)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:694)
at java.awt.EventQueue$3.run(EventQueue.java:692)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:708)
at java.awt.EventQueue$4.run(EventQueue.java:706)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:705)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:154)
at java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:182)
at java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:221)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:219)
at java.awt.Dialog.show(Dialog.java:1082)
at java.awt.Component.show(Component.java:1655)
at java.awt.Component.setVisible(Component.java:1607)
at java.awt.Window.setVisible(Window.java:1014)
at java.awt.Dialog.setVisible(Dialog.java:1005)
at gov.wreckingball.wbs.MissionPlannerConsole.Main.runMain(Main.java:88)
at gov.wreckingball.wbs.MissionPlannerConsole.Main.access$000(Main.java:17)
at
How do I change my code to drag and drop rows that have ImageIcon s? 如何更改代码以拖放具有ImageIcon的行？
1 个解决方案
解决方案1
0 已采纳 2016-09-30 16:19:06
The method ActivationDataFlavor is overloaded. 方法ActivationDataFlavor已重载。 The method's parameters should be 方法的参数应为
private final DataFlavor localObjectFlavor =
new ActivationDataFlavor(Object[].class,
DataFlavor.javaJVMLocalObjectMimeType,
"Array of Objects");
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.
相关问题
如何在JTable中拖放行？ - How do I drag and drop a row in a JTable?
如何将文件拖放到 JTable 中？ - How do I drag & drop files into a JTable?
拖放Jtable行 - Drag Drop Jtable rows
JTable中的动画拖放 - Animated drag and drop in JTable
JTable拖放 - JTable drag and drop
JTable - 拖放 - JTable - drag and drop
JTable中的行标题具有与列标题相同的拖放行为 - Row header in JTable with same drag/drop behaviour as column header
使用TransferHandler进行JTable拖放 - JTable Drag and Drop using TransferHandler
从JTable拖放到JLayeredPane - Drag and Drop from JTable to JLayeredPane
如何获取 ImageIcon 路径 String Java Jtable - How to get ImageIcon path a String Java Jtable
相关标签