Jtable和JTree的写法示例代码

package com.jTablehomework;import java.awt.*;import java.lang.reflect.Field;import java.util.LinkedHashMap;import java.util.List;import java.util.Map;import java.util.Vector;import javax.swing.*;import com.dao.CRUDDAO;import com.entry.Login;/** *  * @author zzy *  *   2016年12月1日下午1:52:29 */public class JTableDemo extends JFrame { private JScrollPane jsp; private JTable jt; private DefaultTableModel tableModel; public static void main(String[] args) {  new JTableDemo(); } public JTableDemo() {  init();  setSize(400, 500);  setLocationRelativeTo(null);  setVisible(true);  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); } private void init() {  Container con = getContentPane();  con.setLayout(new BorderLayout());  createJTable(con); } public void createJTable(Container con) {  JLabel jl = new JLabel("用户信息");  jl.setHorizontalAlignment(SwingConstants.CENTER);  addData();  jt = new JTable(tableModel) {   @Override   public boolean isCellEditable(int row, int column) {    return false;   }  };  System.out.println(jt.getName());  // 用来获得鼠标点击位置的内容  jt.addMouseListener(new MouseAdapter() {   public void mouseClicked(MouseEvent e) {    int selectRow = jt.getSelectedRow();    // System.out.println(selectRow);    // int selectcow = jt.getSelectedColumn();    for (int i = 0; i < jt.getColumnCount(); i++) {     System.out.print(jt.getColumnName(i) + ":");     System.out.print(jt.getValueAt(selectRow, i) + "/t");    }    System.out.println();    // System.out.println(selectcow);    // System.out.println(tableModel.getValueAt(selectRow,    // selectcow));    Vector v = tableModel.getDataVector();   }  });  jt.setRowHeight(30);// 设置表格的行高  jt.setSelectionForeground(Color.red);// 设置选中的文字颜色  jsp = new JScrollPane(jt);  jsp.setViewportView(jt);  con.add(jl, BorderLayout.NORTH);  con.add(jsp, BorderLayout.CENTER); } public void addData() {  List<Login> list = getData();  Field[] field = Login.class.getDeclaredFields();  /**   * 设置标题   */  Object columnNames[] = new Object[field.length];  for (int i = 0; i < field.length; i++) {   columnNames[i] = field[i].getName();  }  /**   * 填充内容   */  Object rowData[][] = new Object[list.size()][];  for (int i = 0; i < list.size(); i++) {   Login l = list.get(i);   Object ob[] = new Object[field.length];   for (int j = 0; j < field.length; j++) {    field[j].setAccessible(true);    try {     ob[j] = field[j].get(l);    } catch (IllegalArgumentException e) {     e.printStackTrace();     System.out.println("底层字段不可访问");    } catch (IllegalAccessException e) {     e.printStackTrace();     System.out.println("对象不是声明字段的实例");    }// 返回此对象上此字段的值    rowData[i] = ob;   }  }  tableModel = new DefaultTableModel(rowData, columnNames); } public List<Login> getData() {  String sql = "select * from Login";  Map<String, Object[]> m = new LinkedHashMap<String, Object[]>();  m.put(sql, null);  return new CRUDDAO<Login>(Login.class).selectAll(m).get(1); }}