JTable的实用小例子，实现添加、删除

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我是靠谱客的博主酷酷秋天，最近开发中收集的这篇文章主要介绍JTable的实用小例子，实现添加、删除，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;

import javax.swing.DefaultCellEditor;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableColumnModel;

/**
* JTable的实用小例子
*/

public class Test {
private JFrame frame = null;

private JTable table = null;

private Table_Model model = null;

private JScrollPane s_pan = null;

private JButton button_1 = null, button_2 = null, button_3 = null;

private JPanel pane = null;

public Test() {
  frame = new JFrame("JTableTest");
  pane = new JPanel();
  button_1 = new JButton("清除数据");
  button_1.addActionListener(new ActionListener() {
   public void actionPerformed(ActionEvent e) {
    removeData();
   }
  });
  button_2 = new JButton("添加数据");
  button_2.addActionListener(new ActionListener() {
   public void actionPerformed(ActionEvent e) {
    addData();
   }
  });
  button_3 = new JButton("保存数据");
  button_3.addActionListener(new ActionListener() {
   public void actionPerformed(ActionEvent e) {
    saveData();
   }
  });
  pane.add(button_1);
  pane.add(button_2);
  pane.add(button_3);
  model = new Table_Model(20);
  table = new JTable(model);
  table.setBackground(Color.white);
  String[] age = { "16", "17", "18", "19", "20", "21", "22" };
  JComboBox com = new JComboBox(age);
  TableColumnModel tcm = table.getColumnModel();
  tcm.getColumn(3).setCellEditor(new DefaultCellEditor(com));
  tcm.getColumn(0).setPreferredWidth(50);
  tcm.getColumn(1).setPreferredWidth(100);
  tcm.getColumn(2).setPreferredWidth(50);

s_pan = new JScrollPane(table);

  frame.getContentPane().add(s_pan, BorderLayout.CENTER);
  frame.getContentPane().add(pane, BorderLayout.NORTH);
  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  frame.setSize(300, 200);
  frame.setVisible(true);

}

private void addData() {
model.addRow("李逵", true, "19");
table.updateUI();
}

private void removeData() {
model.removeRows(0, model.getRowCount());
table.updateUI();
}

// 保存数据，暂时是将数据从控制台显示出来
private void saveData() {
  int col = model.getColumnCount();
  int row = model.getRowCount();
  for (int i = 0; i < col; i++) {
   System.out.print(model.getColumnName(i) + "/t");
  }
  System.out.print("/r/n");
  for (int i = 0; i < row; i++) {
   for (int j = 0; j < col; j++) {
    System.out.print(model.getValueAt(i, j) + "/t");
   }
   System.out.print("/r/n");
  }
  System.out.println("------------------------------------");
}

public static void main(String args[]) {
new Test();
System.out.println("按下保存按钮将会把JTable中的内容显示出来/r/n------------------------------------");
}

}

/**
* TableModel类，继承了AbstractTableModel
* @author 五斗米
*
*/
class Table_Model extends AbstractTableModel {

private static final long serialVersionUID = -7495940408592595397L;

private Vector content = null;

private String[] title_name = { "ID", "姓名", "性别", "年龄" };

public Table_Model() {
content = new Vector();
}

public Table_Model(int count) {
content = new Vector(count);
}

public void addRow(String name, boolean sex, String age) {
  Vector v = new Vector(4);
  v.add(0, new Integer(content.size()));
  v.add(1, name);
  v.add(2, new Boolean(sex));
  v.add(3, age);
  content.add(v);
}

public void removeRow(int row) {
content.remove(row);
}

public void removeRows(int row, int count) {
  for (int i = 0; i < count; i++) {
   if (content.size() > row) {
    content.remove(row);
   }
  }
}

/**
* 让表格中某些值可修改，但需要setValueAt(Object value, int row, int col)方法配合才能使修改生效
*/
public boolean isCellEditable(int rowIndex, int columnIndex) {
  if (columnIndex == 0) {
   return false;
  }
  return true;
}

/**
* 使修改的内容生效
*/
public void setValueAt(Object value, int row, int col) {
  ((Vector) content.get(row)).remove(col);
  ((Vector) content.get(row)).add(col, value);
  this.fireTableCellUpdated(row, col);
}

public String getColumnName(int col) {
return title_name[col];
}

public int getColumnCount() {
return title_name.length;
}

public int getRowCount() {
return content.size();
}

public Object getValueAt(int row, int col) {
return ((Vector) content.get(row)).get(col);
}

/**
* 返回数据类型
*/
public Class getColumnClass(int col) {
return getValueAt(0, col).getClass();
}

}