java swing应用程序中的未知错误_Java_Swing_Jtable_Indexoutofboundsexception_Defaulttablemodel

java swing应用程序中的未知错误

java swing

java swing应用程序中的未知错误,java,swing,jtable,indexoutofboundsexception,defaulttablemodel,Java,Swing,Jtable,Indexoutofboundsexception,Defaulttablemodel,您好，我使用第二个线程每2秒更新一次JTable的DefaultTableModel，这是随机的，它会抛出以下错误 Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 2 >= 2 at java.util.Vector.elementAt(Vector.java:470) at javax.swing.table.DefaultTableModel.getValueAt

您好，我使用第二个线程每2秒更新一次JTable的DefaultTableModel，这是随机的，它会抛出以下错误

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 2 >= 2 at java.util.Vector.elementAt(Vector.java:470) at javax.swing.table.DefaultTableModel.getValueAt(DefaultTableModel.java:649) at javax.swing.JTable.getValueAt(JTable.java:2716) at javax.swing.JTable.prepareRenderer(JTable.java:5714) at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:2108) at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:2010) at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:1806) at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161) at javax.swing.JComponent.paintComponent(JComponent.java:769) at javax.swing.JComponent.paint(JComponent.java:1045) at javax.swing.JComponent.paintChildren(JComponent.java:878) at javax.swing.JComponent.paint(JComponent.java:1054) at javax.swing.JViewport.paint(JViewport.java:731) at javax.swing.JComponent.paintChildren(JComponent.java:878) at javax.swing.JComponent.paint(JComponent.java:1054) at javax.swing.JComponent.paintToOffscreen(JComponent.java:5212) at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:295) at javax.swing.RepaintManager.paint(RepaintManager.java:1236) at javax.swing.JComponent._paintImmediately(JComponent.java:5160) at javax.swing.JComponent.paintImmediately(JComponent.java:4971) at javax.swing.RepaintManager$3.run(RepaintManager.java:796) at javax.swing.RepaintManager$3.run(RepaintManager.java:784) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:784) at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:757) at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:706) at javax.swing.RepaintManager.access$1000(RepaintManager.java:62) at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1651) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:727) at java.awt.EventQueue.access$200(EventQueue.java:103) at java.awt.EventQueue$3.run(EventQueue.java:688) at java.awt.EventQueue$3.run(EventQueue.java:686) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:697) 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) 线程“AWT-EventQueue-0”java.lang.ArrayIndexOutOfBoundsException中出现异常：2>=2 位于java.util.Vector.elementAt（Vector.java:470）位于javax.swing.table.DefaultTableModel.getValueAt（DefaultTableModel.java:649）位于javax.swing.JTable.getValueAt（JTable.java:2716）在javax.swing.JTable.prepareRenderer（JTable.java:5714）位于javax.swing.plaf.basic.BasicTableUI.paintCell（BasicTableUI.java:2108）位于javax.swing.plaf.basic.BasicTableUI.paintCells（BasicTableUI.java:2010）位于javax.swing.plaf.basic.BasicTableUI.paint（BasicTableUI.java:1806）位于javax.swing.plaf.ComponentUI.update（ComponentUI.java:161）位于javax.swing.JComponent.paintComponent（JComponent.java:769）位于javax.swing.JComponent.paint（JComponent.java:1045）位于javax.swing.JComponent.paintChildren（JComponent.java:878）位于javax.swing.JComponent.paint（JComponent.java:1054）位于javax.swing.JViewport.paint（JViewport.java:731）位于javax.swing.JComponent.paintChildren（JComponent.java:878）位于javax.swing.JComponent.paint（JComponent.java:1054）位于javax.swing.JComponent.paintooffscreen（JComponent.java:5212）位于javax.swing.BufferStrategyPaintManager.paint（BufferStrategyPaintManager.java:295）位于javax.swing.repainmanager.paint（RepaintManager.java:1236） javax.swing.JComponent.\u（JComponent.java:5160）位于javax.swing.JComponent.paintInstance（JComponent.java:4971）在javax.swing.repaitmanager$3.run（repaitmanager.java:796）在javax.swing.repaitmanager$3.run（repaitmanager.java:784）位于java.security.AccessController.doPrivileged（本机方法）位于java.security.ProtectionDomain$1.doIntersectionPrivilege（ProtectionDomain.java:76）位于javax.swing.repainmanager.paintDirtyRegions（repainmanager.java:784）位于javax.swing.repainmanager.paintDirtyRegions（repainmanager.java:757）位于javax.swing.RepaintManager.prePaintDirtyRegions（RepaintManager.java:706）在javax.swing.repaitmanager.access$1000（repaitmanager.java:62）在javax.swing.repaitmanager$ProcessingRunnable.run（repaitmanager.java:1651）在java.awt.event.InvocationEvent.dispatch（InvocationEvent.java:251）中位于java.awt.EventQueue.dispatchEventImpl（EventQueue.java:727）在java.awt.EventQueue.access$200（EventQueue.java:103）在java.awt.EventQueue$3.run（EventQueue.java:688）在java.awt.EventQueue$3.run（EventQueue.java:686）位于java.security.AccessController.doPrivileged（本机方法）位于java.security.ProtectionDomain$1.doIntersectionPrivilege（ProtectionDomain.java:76）位于java.awt.EventQueue.dispatchEvent（EventQueue.java:697）位于java.awt.EventDispatchThread.pumpOneEventForFilters（EventDispatchThread.java:242）在java.awt.EventDispatchThread.PumpeEventsforFilter（EventDispatchThread.java:161）位于java.awt.EventDispatchThread.PumpeEventsforHierarchy（EventDispatchThread.java:150）位于java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:146）位于java.awt.EventDispatchThread.pumpEvents（EventDispatchThread.java:138）在java.awt.EventDispatchThread.run（EventDispatchThread.java:91）

程序一直运行得很好，但我不知道代码中的错误在哪里，因为我的类没有一个出现在堆栈跟踪中。

欢迎来到事件调度线程冲突（和竞争条件）的奇妙世界

基本上，除了EDT之外，您不应该（直接或间接地）从任何线程更新任何UI组件

基本上，当您更新

TableModel

时，它会触发一个事件，该事件被该表捕获，该表正在尝试更新自身，但模型状态在不断变化，对该表没有意义

相反，尝试使用

SwingWorker

更新您的模型，使用发布和处理方法保持更新与EDT同步

查看更多详细信息和示例。

欢迎来到事件调度线程冲突（和竞赛条件）的奇妙世界