【发布时间】：2013-08-25 21:25:16
【问题描述】：
我有两个班：
public class RecordTableGUI2 extends JFrame implements ActionListener {
private JButton addButton;
JTable table;
RecordTableModel2 model2;
public RecordTableGUI2() {
model2 = new RecordTableModel2();
table = new JTable(model2);
...
add(buttonPanel(), BorderLayout.SOUTH);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(700, 550);
setLocation(300, 80);
setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == addButton) {
this.setVisible(false);
new AddRecord();
}
}
}
我的AddRecord班级：
public class AddRecord extends javax.swing.JFrame implements ActionListener {
private JButton showGui2Button;
public AddRecord() {
initComponents();
showGui2Button.addActionListener(this);
setLocation(300, 100);
setVisible(true);
}
@Override
public void actionPerformed(ActionEvent e) {
if (e.getSource() == showGui2Button) {
this.setVisible(false);
new RecordTableGUI2();
}
}
}
我的 RecordTableModel2 类：
public class RecordTableModel2 extends DefaultTableModel {
static Vector data = new Vector();
static Vector column = new Vector();
Connection con;
Statement statement;
ResultSet result;
String dbUrl = "jdbc:mysql://localhost/mydb";
String query = "Select * from mytable";
public RecordTableModel2() {
super(data, column);
try {
con = DriverManager.getConnection(dbUrl, "root", "2323");
statement = con.createStatement();
result = statement.executeQuery(query);
int c = result.getMetaData().getColumnCount();
for (int i = 1; i <= c; i++) {
column.add(result.getMetaData().getColumnName(i));
System.out.println(result.getMetaData().getColumnName(i));
}
while (result.next()) {
Vector eachRow = new Vector(c);
for (int i = 1; i <= c; i++) {
eachRow.add(result.getString(i));
System.out.println(result.getString(i));
}
data.add(eachRow);
}
} catch (SQLException sqle) {
sqle.printStackTrace();
} finally {
try {
if (con != null) {
con.close();
}
if (statement != null) {
statement.close();
}
} catch (SQLException sqlee) {
sqlee.printStackTrace();
}
}
}
}
当我点击 showGui2Button 时，就会出现这个异常
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:650)
at javax.swing.JTable.getValueAt(JTable.java:2720)
at javax.swing.JTable.prepareRenderer(JTable.java:5718)
at javax.swing.plaf.synth.SynthTableUI.paintCell(SynthTableUI.java:684)
at javax.swing.plaf.synth.SynthTableUI.paintCells(SynthTableUI.java:581)
at javax.swing.plaf.synth.SynthTableUI.paint(SynthTableUI.java:365)
at javax.swing.plaf.synth.SynthTableUI.update(SynthTableUI.java:276)
at javax.swing.JComponent.paintComponent(JComponent.java:778)
at javax.swing.JComponent.paint(JComponent.java:1054)
at javax.swing.JComponent.paintChildren(JComponent.java:887)
at javax.swing.JComponent.paint(JComponent.java:1063)
at javax.swing.JViewport.paint(JViewport.java:731)
at javax.swing.JComponent.paintChildren(JComponent.java:887)
at javax.swing.JComponent.paint(JComponent.java:1063)
at javax.swing.JComponent.paintChildren(JComponent.java:887)
at javax.swing.JComponent.paint(JComponent.java:1063)
at javax.swing.JComponent.paintChildren(JComponent.java:887)
at javax.swing.JComponent.paint(JComponent.java:1063)
at javax.swing.JLayeredPane.paint(JLayeredPane.java:585)
at javax.swing.JComponent.paintChildren(JComponent.java:887)
at javax.swing.JComponent.paintToOffscreen(JComponent.java:5228)
at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1482)
at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1413)
at javax.swing.RepaintManager.paint(RepaintManager.java:1206)
at javax.swing.JComponent.paint(JComponent.java:1040)
at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:39)
at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:78)
at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:115)
at java.awt.Container.paint(Container.java:1967)
at java.awt.Window.paint(Window.java:3877)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:781)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:728)
at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:677)
at javax.swing.RepaintManager.access$700(RepaintManager.java:59)
at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1621)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:251)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:721)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:682)
at java.awt.EventQueue$3.run(EventQueue.java:680)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:691)
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)
【问题讨论】：
-
问题在于您没有向我们展示的代码 - 提供
SSCCE -
粘贴 complete 堆栈跟踪。并向我们展示您的方法的代码，该代码首先出现在堆栈跟踪中。
-
我认为问题在于使用
initComponents();方法，即IDE生成的代码 -
@JBNizet 我放了完整的堆栈跟踪。
-
-1，这是关于这个主题的第 5 个或第 6 个（我已经记不清了）问题。OP 仍然发布与他被告知对我们没有用的数据库相关的代码，因为我们无权访问数据库。OP 仍然拒绝发布 SSSCE。已告知 OP 没有理由扩展 DefaultTableModel 顶部用数据填充它，并已从我的博客中获得了工作代码的链接。然而 OP 仍在浪费人们的时间。
标签： java swing exception awt-eventqueue