java从入门到精髓 - Swing表格自定义JTable

import java.awt.BorderLayout;
import java.awt.Color;
import java.util.Vector;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.JTableHeader;
import javax.swing.table.TableCellRenderer;
public class JTableDefineTest extends JFrame{

    public JTableDefineTest()
    {
        super();
        setTitle("表格");
        setBounds(100,100,500,500);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JScrollPane scrollPane = new JScrollPane();   //支持滚动
        getContentPane().add(scrollPane,BorderLayout.CENTER);
        String[] columnNames = {"A","B","C","D","E","F","G"};
        Vector columnNameV = new Vector();    //获得表头
        for(int column = 0;column<columnNames.length;column++)
        {
            columnNameV.add(columnNames[column]);
        }
        Vector tableValueV = new Vector();
        for(int row = 1;row<21;row++)    //获得数据
        {
            Vector rowV = new Vector();
            for(int column = 0;column<columnNames.length;column++)
            {
                rowV.add(columnNames[column]+row);  //数据
            }
            tableValueV.add(rowV);
        }
        JTable table = new MyTable(tableValueV,columnNameV);   //自定义的表格
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);  //关闭表格列的自动调整功能。
        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);   //单选
        table.setSelectionBackground(Color.YELLOW);
        table.setSelectionForeground(Color.RED);
        table.setRowHeight(30);
        scrollPane.setViewportView(table);   //支持滚动
        
    }
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        JTableDefineTest jTableDefineTest= new JTableDefineTest();
        jTableDefineTest.setVisible(true);
    }

}

class MyTable extends JTable    //实现自定义类
{

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    
    public MyTable()
    {
        
    }
    public MyTable(Vector rowData ,Vector columnNames)
    {
        super(rowData,columnNames);
    }
    
    /**
     * @Override
     */
    public JTableHeader getTableHeader()
    {
        JTableHeader tableHeader = super.getTableHeader();
        tableHeader.setReorderingAllowed(false);   //设置表格列不可重排
        DefaultTableCellRenderer hr =(DefaultTableCellRenderer)tableHeader.getDefaultRenderer();  //获得表格头的单元格对象
        hr.setHorizontalAlignment(DefaultTableCellRenderer.CENTER);  //列名居中
        return tableHeader;
        
    }
    /**
     * @Override
     */
    public TableCellRenderer getDefaultRenderer(Class<?>columnClass)
    {
        DefaultTableCellRenderer cr =(DefaultTableCellRenderer)super.getDefaultRenderer(columnClass);
        cr.setHorizontalAlignment(DefaultTableCellRenderer.CENTER);  //单元格内容居中
        return cr;
    }
    /**
     * @Override
     */
    public boolean isCellEditable(int row,int column)
    {
        return false;   //单元格不可修改
    }
}