Swing Jtble 排序后，出现数据刷新问题

2014-05-06 08:03:29 274 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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操作描述：
1.添加 -> 刷新
2.点击表头进行排序
3.清空 -> 刷新
4.刷新按钮失效，会报错，如何解决？（如果不点击表头排序，则功能正常）

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 >= 0
at java.util.Vector.elementAt(Vector.java:470)
at javax.swing.table.DefaultTableModel.getValueAt(DefaultTableModel.java:649)
at javax.swing.JTable.getValueAt(JTable.java:2720)
at javax.swing.JTable.prepareRenderer(JTable.java:5718)
at javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:2114)
at javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:2016)
at javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:1812)
at javax.swing.plaf.ComponentUI.update(ComponentUI.java:161)
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.paintToOffscreen(JComponent.java:5221)
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)
......

整个测试代码文件如下：
Test.java：



package examples;



import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import java.util.Vector;



public class Test extends javax.swing.JFrame {



    private Vector<Vector> tblDate; // 表数据

    private Vector<String> tblHeaders; // 表头

    private List<Integer> list; // 数据源



    public Test() {

        tblDate = new Vector<Vector>();

        tblHeaders = new Vector<String>();

        list = new ArrayList<Integer>();

        tblHeaders.add("编号");

        tblHeaders.add("数据");



        initComponents();

        setLocationRelativeTo(null);

    }



    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {

        // 添加

        list.add(list.size());

    }



    private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {

        // 清空

        list.clear();

    }



    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {

        // 刷新

        tblDate.clear();



        for (int i : list) {

            tblDate.add(new Vector(Arrays.asList(i, "测试数据" + i)));

        }



        jTable1.repaint();

        jTable1.updateUI();

    }



    // 下面都是NetBeans自动生成代码，不要管

    public static void main(String args[]) {

        try {

            for (javax.swing.UIManager.LookAndFeelInfo info

                    : javax.swing.UIManager.getInstalledLookAndFeels()) {

                if ("Nimbus".equals(info.getName())) {

                    javax.swing.UIManager.setLookAndFeel(info.getClassName());

                    break;

                }

            }

        } catch (Exception ex) {

            // TODO

        }



        java.awt.EventQueue.invokeLater(new Runnable() {

            @Override

            public void run() {

                new Test().setVisible(true);

            }

        });

    }



    @SuppressWarnings("unchecked")

    private void initComponents() {

        jScrollPane1 = new javax.swing.JScrollPane();

        jTable1 = new javax.swing.JTable();

        jButton1 = new javax.swing.JButton();

        jButton2 = new javax.swing.JButton();

        jButton3 = new javax.swing.JButton();



        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);



        jTable1.setModel(new javax.swing.table.DefaultTableModel(

                this.tblDate, this.tblHeaders

        ));

        jTable1.setAutoCreateRowSorter(true);

        jScrollPane1.setViewportView(jTable1);



        jButton2.setText("添加");

        jButton2.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                jButton2ActionPerformed(evt);

            }

        });



        jButton3.setText("清空");

        jButton3.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                jButton3ActionPerformed(evt);

            }

        });



        jButton1.setText("刷新");

        jButton1.addActionListener(new java.awt.event.ActionListener() {

            public void actionPerformed(java.awt.event.ActionEvent evt) {

                jButton1ActionPerformed(evt);

            }

        });



        javax.swing.GroupLayout layout = new javax.swing

        .GroupLayout(getContentPane());

        getContentPane().setLayout(layout);

        layout.setHorizontalGroup(

                layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                .addGroup(layout.createSequentialGroup()

                        .addContainerGap()

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout

                                .Alignment.LEADING)

                                .addComponent(jScrollPane1, javax.swing.GroupLayout

                                        .PREFERRED_SIZE, 0, Short.MAX_VALUE)

                                .addGroup(layout.createSequentialGroup()

                                        .addGap(0, 168, Short.MAX_VALUE)

                                        .addComponent(jButton2)

                                        .addGap(18, 18, 18)

                                        .addComponent(jButton3)

                                        .addGap(18, 18, 18)

                                        .addComponent(jButton1)))

                        .addContainerGap())

        );

        layout.setVerticalGroup(

                layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)

                .addGroup(layout.createSequentialGroup()

                        .addContainerGap()

                        .addComponent(jScrollPane1,

                                javax.swing.GroupLayout.DEFAULT_SIZE, 190, Short

                                        .MAX_VALUE)

                        .addGap(18, 18, 18)

                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout

                                .Alignment.BASELINE)

                                .addComponent(jButton1)

                                .addComponent(jButton2)

                                .addComponent(jButton3))

                        .addContainerGap())

        );



        pack();

    }



    private javax.swing.JButton jButton1;

    private javax.swing.JButton jButton2;

    private javax.swing.JButton jButton3;

    private javax.swing.JScrollPane jScrollPane1;

    private javax.swing.JTable jTable1;

}