在JTable和数据库（phpMyAdmin）中添加一行？

Question

initComponents(); 
try {
        ResultSet res = statement.executeQuery("SELECT * FROM banh");
        ResultSetMetaData RSMD = res.getMetaData();
        NumberOfColumns = RSMD.getColumnCount();
        AttributeNames = new String[NumberOfColumns];
        for(int i=0;i<NumberOfColumns;i++)
            AttributeNames[i]=RSMD.getColumnName(i+1);
        MyArray=new Object[10000][NumberOfColumns];
        int R=0;
        while(res.next()) {
            for(int C=1; C<=NumberOfColumns;C++)
                MyArray[R][C-1]=res.getObject(C);
            R++;
        }
        res.close();
        NumberOfRows=R;
        Object[][] TempArray=MyArray;
        MyArray=new Object[NumberOfRows][NumberOfColumns];
        for(R=0;R<NumberOfRows;R++)
            for(int C=0;C<NumberOfColumns;C++)
                MyArray[R][C]=TempArray[R][C];
        TableData.setModel(new MyTableModel());
        TableData.setVisible(true);
    }      
    catch(Exception e) 
    {
        e.printStackTrace();
    }
public void initComponents() 
{             
    model = new DefaultTableModel (new Object [][] 
        {
            {null},
            {null},
            {null},
            {null}
        },
        new String [] {""}
        ) {
          Class[] types = new Class [] {java.lang.Object.class};
          boolean[]canEdit=new boolean[]{false};

          public Class getColumnClass(int columnIndex) 
          {
                return types [columnIndex];
          }
          public boolean isCellEditable(int rowIndex, int columnIndex) 
          {
                return canEdit [columnIndex];
          }
    };
    TableData.setModel(model);
    JScrollPane ScrollPane1 = new JScrollPane(TableData); 
    ScrollPane1.setBounds(30,170,950,290);
    Frame.add(ScrollPane1,BorderLayout.CENTER);
}

I show my Database to JTable by this way, I found it on Internet, it's not mine and it's work. But now I don't know how to add row to JTable and Database, I've found many website but no use (PreparedStatement, executeUpdate...). Can anyone help me about this because I've just learnt. Thank You !

Answer 1

That is a poor example to use:

1. Variable names should NOT start with an upper case character.
2. Hardcoding the array size to support 10,000 rows is the wrong approach. You can also use Vector which are dynamic.

Instead check out the Table From Database Example code found in Table From Database . This example uses Vectors which will grow depending on the number of rows found in the ResultSet.

I don't know how to add row to JTable and Database

1. You can use the addRow(...) method of the DefaultTableModel to add data dynamically. Read the API or search the forum/web for examples that use the addRow(...) method.

2. For database inserts you can start with the tutorial on JDBC Database Access .