Java 动态向 JTable 中添加数据

 import java.awt.Toolkit;
 import javax.swing.SwingUtilities;
 import javax.swing.UIManager;
 import java.awt.Dimension;
 public class JTableAppClass {
     boolean packFrame = false;

     public JTableAppClass() {
         JTableAppFrame frame = new JTableAppFrame();
         // Validate frames that have preset sizes
         // Pack frames that have useful preferred size info, e.g. from their layout
         if (packFrame) {
             frame.pack();
         } else {
             frame.validate();
         }
         // Center the window
         Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
         Dimension frameSize = frame.getSize();
         if (frameSize.height > screenSize.height) {
             frameSize.height = screenSize.height;
         }
         if (frameSize.width > screenSize.width) {
             frameSize.width = screenSize.width;
         }
         frame.setLocation((screenSize.width - frameSize.width) / ,
                           (screenSize.height - frameSize.height) / );
         frame.setVisible(true);
     }

     public static void main(String[] args) {
         SwingUtilities.invokeLater(new Runnable() {
             public void run() {
                 try {
                     UIManager.setLookAndFeel(UIManager.
                                              getSystemLookAndFeelClassName());
                 } catch (Exception exception) {
                     exception.printStackTrace();
                 }
                 new JTableAppClass();
             }
         });
     }
 }
 操作类：JTableAppFrame.java
 package jtabletest;
 import java.awt.Dimension;
 import javax.swing.JFrame;
 import javax.swing.JPanel;
 import javax.swing.JTable;
 import java.awt.Rectangle;
 import javax.swing.JScrollPane;
 import java.util.Vector;
 import java.sql.*;
 import java.util.ArrayList;
 import javax.swing.JLabel;
 import javax.swing.JTextField;
 import java.awt.Font;
 import javax.swing.JButton;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import javax.swing.JOptionPane;
 public class JTableAppFrame extends JFrame {
     JPanel contentPane;
     Vector CellsVector = new Vector();
     Vector TitleVector = new Vector();
     JScrollPane scp = new JScrollPane();
     JTable tab = null;
     DBCon dbcon = new DBCon();
     JLabel lbl_name = new JLabel();
     JLabel lbl_age = new JLabel();
     JLabel lbl_address = new JLabel();
     JTextField txt_name = new JTextField();
     JTextField txt_age = new JTextField();
     JTextField txt_address = new JTextField();
     JButton btn_add = new JButton();
     JButton btn_del = new JButton();
     JButton btn_update = new JButton();
     JButton btn_reset = new JButton();
     public JTableAppFrame() {
         try {
             setDefaultCloseOperation(EXIT_ON_CLOSE);
             jbInit();
         } catch (Exception exception) {
             exception.printStackTrace();
         }
     }

     private void jbInit() throws Exception {
         contentPane = (JPanel) getContentPane();
         contentPane.setLayout(null);
         this.setResizable(false);
         setSize(new Dimension(, ));
         setTitle("JTable");
         scp.setBounds(new Rectangle(, , , ));
         lbl_name.setFont(new java.awt.Font("宋体", Font.BOLD, ));
         lbl_name.setText("姓名：");
         lbl_name.setBounds(new Rectangle(, , , ));
         lbl_age.setFont(new java.awt.Font("宋体", Font.BOLD, ));
         lbl_age.setText("年龄：");
         lbl_age.setBounds(new Rectangle(, , , ));
         lbl_address.setFont(new java.awt.Font("宋体", Font.BOLD, ));
         lbl_address.setText("地址：");
         lbl_address.setBounds(new Rectangle(, , , ));
         txt_name.setFont(new java.awt.Font("宋体", Font.BOLD, ));
         txt_name.setBounds(new Rectangle(, , , ));
         txt_age.setFont(new java.awt.Font("宋体", Font.BOLD, ));
         txt_age.setBounds(new Rectangle(, , , ));
         txt_address.setFont(new java.awt.Font("宋体", Font.BOLD, ));
         txt_address.setBounds(new Rectangle(, , , ));
         btn_add.setBounds(new Rectangle(, , , ));
         btn_add.setFont(new java.awt.Font("宋体", Font.BOLD, ));
         btn_add.setText("添 加");
         btn_add.addActionListener(new JTableAppFrame_btn_add_actionAdapter(this));
         btn_del.setBounds(new Rectangle(, , , ));
         btn_del.setFont(new java.awt.Font("宋体", Font.BOLD, ));
         btn_del.setText("删 除");
         btn_del.addActionListener(new JTableAppFrame_btn_del_actionAdapter(this));
         btn_update.setBounds(new Rectangle(, , , ));
         btn_update.setFont(new java.awt.Font("宋体", Font.BOLD, ));
         btn_update.setText("修 改");
         btn_update.addActionListener(new
                                      JTableAppFrame_btn_update_actionAdapter(this));
         btn_reset.setBounds(new Rectangle(, , , ));
         btn_reset.setFont(new java.awt.Font("宋体", Font.BOLD, ));
         btn_reset.setText("重 置");
         btn_reset.addActionListener(new JTableAppFrame_btn_reset_actionAdapter(this));
         contentPane.add(scp);
         contentPane.add(lbl_name);
         contentPane.add(lbl_age);
         contentPane.add(lbl_address);
         contentPane.add(txt_name);
         contentPane.add(txt_age);
         contentPane.add(txt_address);
         contentPane.add(btn_del);
         contentPane.add(btn_update);
         contentPane.add(btn_add);
         contentPane.add(btn_reset);
         dbcon.connectDB();
         this.showTable();
         tab = new JTable(CellsVector, TitleVector);
         scp.getViewport().add(tab);
     }

     public void showTable() {
         this.TitleVector.add("姓名");
         this.TitleVector.add("年龄");
         this.TitleVector.add("地址");
         dbcon.select();
         ArrayList list = dbcon.select();
         for (int i = ; i < list.size(); i++) {
             Student stu = (Student) list.get(i);
             Vector v = new Vector();
             v.add(stu.getName());
             v.add(stu.getAge());
             v.add(stu.getAddress());
             CellsVector.add(v);
         }
     }

     String name;
     String age;
     String address;
     public int checkInformation() {
         name = this.txt_name.getText();
         age = this.txt_age.getText();
         address = this.txt_address.getText();
         if (name.equals("")) {
             JOptionPane.showMessageDialog(this, "您好！请输入姓名！", "提示", );
             this.txt_name.grabFocus();
             return ;
         }
         if (age.equals("")) {
             JOptionPane.showMessageDialog(this, "您好！请输入年龄！", "提示", );
             this.txt_age.grabFocus();
             return ;
         }
         char[] ans = age.toCharArray();
         for (int i = ; i < ans.length; i++) {
             if (!Character.isDigit(ans[i])) {
                 JOptionPane.showMessageDialog(this, "您好！年龄输入错误！", "提示", );
                 this.txt_age.setText("");
                 this.txt_age.grabFocus();
                 return ;
             }
         }
         if (age.length() > ) {
             JOptionPane.showMessageDialog(this, "您好！年龄最高只能为 100 岁！", "提示", );
             this.txt_age.setText("");
             this.txt_age.grabFocus();
             return ;
         }
         if (address.equals("")) {
             JOptionPane.showMessageDialog(this, "您好！请输入地址！", "提示", );
             this.txt_address.grabFocus();
             return ;
         }
         ages = Integer.valueOf(age);
         return ;
     }

     int ages;
     public void btn_add_actionPerformed(ActionEvent e) {
         if (this.checkInformation() == ) {
             return;
         }
         dbcon.insert(name, ages, address);
         this.CellsVector.clear();
         this.showTable();
         this.tab.updateUI();
         this.btn_reset_actionPerformed(e);
     }

     ResultSet rs;
     public void btn_del_actionPerformed(ActionEvent e) {
         String name = this.txt_name.getText();
         this.txt_age.setEditable(false);
         this.txt_address.setEditable(false);
         if (name.equals("")) {
             JOptionPane.showMessageDialog(this, "您好！请输入姓名！", "提示", );
             this.txt_name.grabFocus();
             return;
         }
         try {
             String sql = "select * from Student where name=?";
             PreparedStatement ps = DBCon.con.prepareStatement(sql);
             ps.setString(, name);
             rs = ps.executeQuery();
             if (rs.next()) {
                 ps.close();
                 dbcon.delete(name);
                 this.CellsVector.clear();
                 this.showTable();
                 this.tab.updateUI();
                 this.btn_reset_actionPerformed(e);
             } else {
                 JOptionPane.showMessageDialog(this, "您好！该学员不存在！", "提示", );
                 this.btn_reset_actionPerformed(e);
                 return;
             }
         } catch (SQLException ex) {
             System.out.println("核对学员信息发生异常" + ex.getMessage());
         }
     }

     public void btn_update_actionPerformed(ActionEvent e) {
         if (this.checkInformation() == ) {
             return;
         }
         try {
             String sql = "select * from Student where name=?";
             PreparedStatement ps = DBCon.con.prepareStatement(sql);
             ps.setString(, name);
             rs = ps.executeQuery();
             if (rs.next()) {
                 ps.close();
                 dbcon.update(name, ages, address);
                 this.CellsVector.clear();
                 this.showTable();
                 this.tab.updateUI();
                 this.btn_reset_actionPerformed(e);
             } else {
                 JOptionPane.showMessageDialog(this, "您好！该学员不存在！", "提示", );
                 this.btn_reset_actionPerformed(e);
                 return;
             }
         } catch (SQLException ex) {
             System.out.println("核对学员信息发生异常" + ex.getMessage());
         }
     }

     public void btn_reset_actionPerformed(ActionEvent e) {
         this.txt_name.setText("");
         this.txt_age.setText("");
         this.txt_address.setText("");
         this.txt_age.setEditable(true);
         this.txt_address.setEditable(true);
     }
 }

 class JTableAppFrame_btn_del_actionAdapter implements ActionListener {
     private JTableAppFrame adaptee;
     JTableAppFrame_btn_del_actionAdapter(JTableAppFrame adaptee) {
         this.adaptee = adaptee;
     }
     public void actionPerformed(ActionEvent e) {
         adaptee.btn_del_actionPerformed(e);
     }
 }

 class JTableAppFrame_btn_update_actionAdapter implements ActionListener {
     private JTableAppFrame adaptee;
     JTableAppFrame_btn_update_actionAdapter(JTableAppFrame adaptee) {
         this.adaptee = adaptee;
     }
     public void actionPerformed(ActionEvent e) {
         adaptee.btn_update_actionPerformed(e);
     }
 }

 class JTableAppFrame_btn_reset_actionAdapter implements ActionListener {
     private JTableAppFrame adaptee;
     JTableAppFrame_btn_reset_actionAdapter(JTableAppFrame adaptee) {
         this.adaptee = adaptee;
     }
     public void actionPerformed(ActionEvent e) {
         adaptee.btn_reset_actionPerformed(e);
     }
 }

 class JTableAppFrame_btn_add_actionAdapter implements ActionListener {
     private JTableAppFrame adaptee;
     JTableAppFrame_btn_add_actionAdapter(JTableAppFrame adaptee) {
         this.adaptee = adaptee;
     }
     public void actionPerformed(ActionEvent e) {
         adaptee.btn_add_actionPerformed(e);
     }
 }
 连接数据库类：DBCon.java
 package jtabletest;
 import java.sql.*;
 import java.util.ArrayList;
 import javax.swing.JOptionPane;
 public class DBCon {
     static Connection con;
     private final String DRIVER = "sun.jdbc.odbc.JdbcOdbcDriver";
     private final String URL = "jdbc:odbc:test";
     ResultSet rs = null;
     Statement st = null;
     public DBCon() {
     }

     public void connectDB() {
         try {
             Class.forName(DRIVER);
         } catch (ClassNotFoundException ex) {
             System.out.println(ex.getMessage());
         }
         if (con == null) {
             try {
                 con = DriverManager.getConnection(URL);
             } catch (SQLException ex) {
                 System.out.println("创建连接发生异常:" + ex.getMessage());
                 System.exit();
             }
         }
     }

     public ArrayList select() {
         ArrayList list = new ArrayList();
         String sql = "select * from Student";
         try {
             st = con.createStatement();
             rs = st.executeQuery(sql);
             while (rs.next()) {
                 Student stu = new Student();
                 stu.setName(rs.getString());
                 stu.setAge(rs.getInt());
                 stu.setAddress(rs.getString());
                 list.add(stu);
             }
         } catch (SQLException ex) {
             System.out.println("查询数据发生异常:" + ex.getMessage());
         } finally {
             try {
                 rs.close();
             } catch (SQLException ex1) {
                 System.out.println("查询数据关闭语句异常:" + ex1.getMessage());
             }
         }
         return list;
     }

     public void insert(String name, int age, String address) {
         String sql = "insert into Student values(?,?,?)";
         PreparedStatement ps = null;
         try {
             ps = con.prepareStatement(sql);
             ps.setString(, name);
             ps.setInt(, age);
             ps.setString(, address);
             if (ps.executeUpdate() != ) {
                 JOptionPane.showMessageDialog(null, "恭喜！插入数据成功！", "消息", );
             }
         } catch (SQLException ex) {
             System.out.println("插入数据发生异常:" + ex.getMessage());
         } finally {
             try {
                 ps.close();
             } catch (SQLException ex1) {
                 System.out.println("插入数据关闭语句异常:" + ex1.getMessage());
             }
         }
     }

     public void update(String name, int age, String address) {
         String sql = "update Student set age = ?,address = ? where name =?";
         PreparedStatement ps = null;
         try {
             ps = con.prepareStatement(sql);
             ps.setInt(, age);
             ps.setString(, address);
             ps.setString(, name);
             if (ps.executeUpdate() != ) {
                 JOptionPane.showMessageDialog(null, "恭喜！更新数据成功！", "消息", );
             }
         } catch (SQLException ex) {
             System.out.println("修改数据发生异常!");
         } finally {
             try {
                 ps.close();
             } catch (SQLException ex1) {
                 System.out.println("修改数据关闭语句异常:" + ex1.getMessage());
             }
         }
     }

     public void delete(String name) {
         String sql = "delete from Student where name =?";
         PreparedStatement ps = null;
         int delNumber;
         try {
             ps = con.prepareStatement(sql);
             ps.setString(, name);
             delNumber = ps.executeUpdate();
             if (delNumber != ) {
                 JOptionPane.showMessageDialog(null, "恭喜！删除数据成功！", "消息", );
             }
         } catch (SQLException ex) {
             System.out.println("删除数据发生异常:" + ex.getMessage());
         } finally {
             try {
                 ps.close();
             } catch (SQLException ex1) {
                 System.out.println("删除数据关闭语句异常:" + ex1.getMessage());
             }
         }
     }

     public void destoryConnection() {
         if (con != null) {
             try {
                 con.close();
             } catch (SQLException ex) {
                 System.out.println("释放连接异常：" + ex.getMessage());
             }
         }
     }
 }
 JavaBean 类：Student.java
 package jtabletest;
 public class Student {
     private String name;
     private int age;
     private String address;
     public Student() {
     }
     public void setName(String name) {
         this.name = name;
     }
     public void setAge(int age) {
         this.age = age;
     }
     public void setAddress(String address) {
         this.address = address;
     }
     public String getName() {
         return name;
     }
     public int getAge() {
         return age;
     }
     public String getAddress() {
         return address;
     }
 }