请问一个有关JTable的问题

Question

重新调用一次jTable.setModel(dataModel);

Answer 1

当数据更新时，应该调用TableDataModel的fireTableChanged方法来发出事件，TableView会捕获这个事件并自动更新显示。

Answer 2

举例：
    class MyModel extends javax.swing.table.AbstractTableModel
    {
        int rowCount = 10;
        int columnCount = 7;
        int currentPageNO=1;
        int totalPage=10;
        String names[] = 7;
        Object[][] content;
        public MyModel()
        {
            refreshData();
        }
        public void refreshData()
        {
            content=getData((currentPageNO-1)*rowCount,rowCount);
            this.fireTableDataChanged();
        }
        private Object[][] getData(int startPos,int length)
       //此处应该换成您自己的获取数据的方法
       {
            Object[][] data=new Object[length][7];
            String[] criteria = new String[7];
            try
            {
                int[] keyArray = DB.find(criteria);
                int total=keyArray.length/rowCount+1;
                if (keyArray.length%rowCount==0)
                    total--;
                setTotalPageCount(total);
                if (startPos>=keyArray.length)
                {
                    return data;
                }
                if (length>keyArray.length-startPos)
                    length=keyArray.length-startPos;
                for(int i=0;i<length;i++)
                {
                    data[i] = DB.read(keyArray[startPos+i]);
                }
            }catch(Exception ex)
            {
                ex.printStackTrace();
            }
            return data;
        }
        public int getRowCount()
        {
            return rowCount;
        }
        public int getColumnCount()
        {
            return columnCount;
        }
        public String getColumnName(int column)
        {
            return names[column];
        }
        public Object getValueAt(int row,int column)
        {
            return content[row][column];
        }
        public Class getColumnClass(int columnIndex)
        {
            return getValueAt(0,columnIndex).getClass();
        }
        public boolean isCellEditable(int row,int column)
        {
            return true;
        }
        public void setValueAt(Object value,int row,int column)
        {
            content[row][column] = value;
            this.fireTableCellUpdated(row,column);
        }
    }