java swing之JTable和JList

1、JTable

JTable构造方法:

JTable(TableModel dm)

JTable(object[][]rowData,object[]columnNames)

JTable(Vector  rowData,Vector  columnNames)

JTable类常用的方法有：

getModel() //获得表格的数据来源对象

getSelectedRow() //获得选中的行数

例子1：

import java.awt.Dimension;

import java.util.Date;

import java.util.Vector;

import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.table.DefaultTableModel;

public class TableJFrame extends JFrame {

public TableJFrame() {

init();

this.setTitle("表格的例子");

this.setSize(new Dimension(400, 450));

this.setLocationRelativeTo(null);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setVisible(true);

}

private void init() {

1.二维数组初始化

//String[] columnHeader = { "编号", "姓名", "年龄", "地址" };

//String[][] data = new String[][] { { "user1", "小明", "26", "福州鼓楼" },

//{ "user2", "小明2", "28", "福州鼓楼2" },

//{ "user3", "小明3", "33", "福州鼓楼" },

//{ "user4", "小明4", "26", "福州鼓楼" } };

//

2、实现了tableModel接口

//DefaultTableModel defaultTableModel = new DefaultTableModel(data,columnHeader);

//设置模型方式

//table.setModel(defaultTableModel);

//3、vector

Vector colHeader = new Vector();

colHeader.add("编号");

colHeader.add("名字");

colHeader.add("性别");

colHeader.add("日期");

Vector> dataVec = new Vector>();

Vector row1 = new Vector();

row1.add("0001");

row1.add("旺财");

row1.add("男");

row1.add(new Date().toString());

Vector row2 = new Vector();

row2.add("0002");

row2.add("小强");

row2.add("男");

row2.add(new Date().toString());

Vector row3 = new Vector();

row3.add("0003");

row3.add("韦小宝");

row3.add("女");

row3.add(new Date().toString());

Vector row4 = new Vector();

row4.add("0004");

row4.add("零零七");

row4.add("男");

row4.add(new Date().toString());

dataVec.add(row1);

dataVec.add(row2);

dataVec.add(row3);

dataVec.add(row4);

JTable table = new JTable(dataVec,colHeader);

//要显示表头必须要加入到滚动面板 滚动面板加入到窗体

//JScrollPane scrollPane = new JScrollPane(table);

JScrollPane scrollPane = new JScrollPane();

scrollPane.setViewportView(table);

this.add(scrollPane);

}

/**

* @param args

*/

public static void main(String[] args) {

new TableJFrame();

}

}

例子2：

import java.awt.BorderLayout;

import java.awt.Dimension;

import java.util.Date;

import java.util.Vector;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.ListSelectionModel;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

import javax.swing.table.DefaultTableModel;

public class TableJFrame2 extends JFrame {

JButton buttonAlt = new JButton("修改");

JButton buttonDel = new JButton("删除");

///表格方法使用

public TableJFrame2() {

init();

this.setTitle("表格的例子2");

this.setSize(new Dimension(400, 450));

this.setLocationRelativeTo(null);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setVisible(true);

}

private void init() {

Vector colHeader = new Vector();

colHeader.add("编号");

colHeader.add("名字");

colHeader.add("性别");

colHeader.add("日期");

Vector> dataVec = new Vector>();

Vector row1 = new Vector();

row1.add("0001");

row1.add("旺财");

row1.add("男");

row1.add(new Date().toString());

Vector row2 = new Vector();

row2.add("0002");

row2.add("小强");

row2.add("男");

row2.add(new Date().toString());

Vector row3 = new Vector();

row3.add("0003");

row3.add("韦小宝");

row3.add("女");

row3.add(new Date().toString());

Vector row4 = new Vector();

row4.add("0004");

row4.add("零零七");

row4.add("男");

row4.add(new Date().toString());

dataVec.add(row1);

dataVec.add(row2);

dataVec.add(row3);

dataVec.add(row4);

final JTable table = new JTable(dataVec,colHeader){

//1单元格不可以编辑

@Override

public boolean isCellEditable(int row, int column) {

// TODO Auto-generated method stub

return false;

}

};

//2设置表头行高

table.getTableHeader().setPreferredSize(new Dimension(0,30));

//3设置表内容行高

table.setRowHeight(25);

//4设置单选模式

table.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

//5设置单元格不可拖动

table.getTableHeader().setReorderingAllowed(false);

//6设置不可改变列宽

table.getTableHeader().setResizingAllowed(false);

//7设置列宽

table.getColumnModel().getColumn(0).setPreferredWidth(45);

table.getColumnModel().getColumn(1).setPreferredWidth(55);

table.getColumnModel().getColumn(2).setPreferredWidth(40);

table.getColumnModel().getColumn(3).setPreferredWidth(305);

//table.getColumnModel().getColumn(4).setPreferredWidth(305);//注意索引越界

int rowIndex = table.getSelectedRow();

System.out.println("suoyin:"+rowIndex);

//监听事件

table.getSelectionModel().addListSelectionListener(new ListSelectionListener(){

public void valueChanged(ListSelectionEvent e) {

if(e.getValueIsAdjusting()){//连续操作

int rowIndex = table.getSelectedRow();

if(rowIndex!=-1){

System.out.println("表格行被选中"+rowIndex);

buttonAlt.setEnabled(true);

buttonDel.setEnabled(true);

}

}

}});

JScrollPane scrollPane = new JScrollPane();

scrollPane.setViewportView(table);

this.add(scrollPane);

buttonDel.setEnabled(false);

buttonAlt.setEnabled(false);

JPanel panel = new JPanel();

panel.add(buttonAlt);

panel.add(buttonDel);

this.add(panel,BorderLayout.SOUTH);

}

/**

* @param args

*/

public static void main(String[] args) {

new TableJFrame2();

}

}

2、JList

JList:

public JList(ListModel lm);

public void setModel(ListModel lm);

getSelectionModel().addListSelectionListener(ListSelectionListener lsl); //JList上的选择事件和JTabel相同

DefaultListModel:

public void addElement(Object o); //加入节点

public void removeElement(Object o); //移除节点

public int getSelectedIndex(); //获取被选中项的索引

public int[] getSelectedIndices(); //获取被选中项的索引

public Object getElementAt(int i);

public void setSelectedValue(Object o);

例子：

import java.awt.Dimension;

import java.util.Date;

import java.util.Vector;

import javax.swing.DefaultListModel;

import javax.swing.JFrame;

import javax.swing.JList;

import javax.swing.JScrollPane;

import javax.swing.JTable;

import javax.swing.ListSelectionModel;

import javax.swing.event.ListSelectionEvent;

import javax.swing.event.ListSelectionListener;

import javax.swing.table.DefaultTableModel;

public class TestJListJFrame extends JFrame {

public TestJListJFrame() {

init();

this.setTitle("JList例子");

this.setSize(new Dimension(200, 450));

this.setLocationRelativeTo(null);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setVisible(true);

}

private void init() {

final JList list = new JList();

DefaultListModel defaultListModel = new DefaultListModel();

defaultListModel.addElement("黄飞鸿");

defaultListModel.addElement("霍元甲");

defaultListModel.addElement("姚家兴");

defaultListModel.addElement("陈真");

defaultListModel.addElement("叶问");

defaultListModel.addElement("李小龙");

defaultListModel.addElement("方世玉");

list.setModel(defaultListModel);

//单选

list.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

//加入选择事件

list.getSelectionModel().addListSelectionListener(new ListSelectionListener(){

public void valueChanged(ListSelectionEvent e) {

if(e.getValueIsAdjusting()){

int index = list.getSelectedIndex();

System.out.println(index);

String selectedItem = list.getSelectedValue().toString();

System.out.println("选中值:"+selectedItem);

}

}});

JScrollPane scrollPane = new JScrollPane();

scrollPane.setViewportView(list);

this.add(scrollPane);

}

/**

* @param args

*/

public static void main(String[] args) {

new TestJListJFrame();

}

}