Java从入门到精通 - 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
 }
}