怎么用java设计一个窗口，要求功能如下：

Posted 2023-04-27

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了怎么用java设计一个窗口，要求功能如下：相关的知识，希望对你有一定的参考价值。

他要实现的功能就是：点击一个按钮（假如名为“输入文件”），就会出现一个窗口，让你选择电脑里的文件。就像你点击qq聊天窗口的“传输文件”按钮会出现让你选择文件的窗口一样
同样，点击另一个按钮（假如名为“存储文件”），就会出现一个窗口让你选择一个存储路径

不知道大家明白没，谢谢了
主要是我不知道怎么下手，不知道怎么做
如果可行，奉上200积分，虽然不多，表达感谢之情
嗯？悬赏积分最高是100，那就100积分了，只要能解决问题，多少积分都可以
我的意思还有就是如果保存的是要一些文件（几个文件，如lucene索引后文件的存放位置），要的是选择一个文件夹，不要下面的要输入的文件名（因为几个文件），所以请问这样的对话框怎么设计，请给出代码，谢谢

我这有个联系swing的界面大全，里面包含了常用的主件，可以直接用
package demo.synth;

import javax.swing.*;

import java.awt.*;
import java.awt.event.*;
import java.lang.reflect.InvocationTargetException;

import javax.swing.tree.*;
import javax.swing.event.*;
import javax.swing.border.*;
import javax.swing.plaf.metal.MetalLookAndFeel;
import javax.swing.plaf.synth.SynthLookAndFeel;
import javax.swing.table.*;

public class SwingTest extends JFrame
/**
* 主模块，初始化所有子模块，并设置主框架的相关属性
*/
public SwingTest()
// 初始化所有模块
MenuTest menuTest = new MenuTest();
LeftPanel leftPanel = new LeftPanel();
RightPanel rightPanel = new RightPanel();
BottomPanel bottomPanel = new BottomPanel();
CenterPanel centerPanel = new CenterPanel();

// 设置主框架的布局
Container c = this.getContentPane();
// c.setLayout(new BorderLayout());
this.setJMenuBar(menuTest);

c.add(leftPanel, BorderLayout.WEST);
c.add(rightPanel, BorderLayout.EAST);
c.add(centerPanel, BorderLayout.CENTER);
c.add(bottomPanel, BorderLayout.SOUTH);

// 利用无名内隐类，增加窗口事件
this.addWindowListener(new WindowAdapter()
public void WindowClosing(WindowEvent e)
// 释放资源，退出程序
dispose();
System.exit(0);

);

setSize(800, 600);
setTitle("* All Groupware Of Swing *");
// 隐藏frame的标题栏,此功暂时关闭，以方便使用window事件
// setUndecorated(true);
setLocation(200, 150);
this.setVisible(true);

// //////////////////////////////////////////////////////////////////////////
/**
* 菜单栏处理模块 JMenuBar --+ --JMenu--+ --JMenuItem --ActionListener
*
*/
class MenuTest extends JMenuBar
private JDialog aboutDialog;

/**
* 菜单初始化操作
*/
public MenuTest()
JMenu fileMenu = new JMenu("File");
JMenuItem exitMenuItem = new JMenuItem("Exit", KeyEvent.VK_E);
JMenuItem aboutMenuItem = new JMenuItem("About...", KeyEvent.VK_A);

fileMenu.add(exitMenuItem);
fileMenu.add(aboutMenuItem);

this.add(fileMenu);

aboutDialog = new JDialog();
initAboutDialog();

// 菜单事件
exitMenuItem.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e)
dispose();
System.exit(0);

);

aboutMenuItem.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e)
// "关于"对话框的处理
aboutDialog.setVisible(true);

);

/**
* 返回关于对话框
*/
public JDialog getAboutDialog()
return aboutDialog;

/**
* 设置"关于"对话框的外观及响应事件,操作和JFrame一样都是在内容框架上进行的
*/
public void initAboutDialog()
aboutDialog.setTitle("About");

Container con = aboutDialog.getContentPane();

// Swing 中使用html语句
Icon icon = new ImageIcon("smile.gif");
JLabel aboutLabel = new JLabel("<html><b><font size=5>"
+ "<center>All Groupware Of Swing ！" + "<br>Kasam.Huang",
icon, JLabel.CENTER);

// JLabel aboutLabel = new JLabel("Swing
// 组件大全简体版！",icon,JLabel.CENTER);
con.add(aboutLabel, BorderLayout.CENTER);

aboutDialog.setSize(450, 225);
aboutDialog.setLocation(300, 300);
aboutDialog.addWindowListener(new WindowAdapter()
public void WindowClosing(WindowEvent e)
dispose();

);

// //////////////////////////////////////////////////////////////////////////
/**
* 最左边模块，继承JPanel,初始化内容为JTree JPanel--+ --JTree
*/
class LeftPanel extends JPanel
private int i = 0;

public LeftPanel()

DefaultMutableTreeNode root = new DefaultMutableTreeNode("Root");
DefaultMutableTreeNode child = new DefaultMutableTreeNode("Child");
DefaultMutableTreeNode select = new DefaultMutableTreeNode("select");

DefaultMutableTreeNode child1 = new DefaultMutableTreeNode("" + i);

root.add(child);
root.add(select);
child.add(child1);

JTree tree = new JTree(root);
tree.getSelectionModel().setSelectionMode(
TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);

// 每个节点的行高
tree.setRowHeight(20);
tree.addTreeSelectionListener(new TreeSelectionListener()
public void valueChanged(TreeSelectionEvent e)
// 内隐类不能直接引用外部类tree，1.外部变量可申明为final 2.新建外部类的对象
JTree tree = (JTree) e.getSource();
DefaultMutableTreeNode selectNode = (DefaultMutableTreeNode) tree
.getLastSelectedPathComponent();
i++;
selectNode.add(new DefaultMutableTreeNode("" + i));
// Object s = tree.getLastSelectedPathComponent();//
// getSelectedValue();
// JOptionPane.showMessageDialog(null, s + " is selected",
// "Message !", JOptionPane.YES_OPTION);

);

tree.setPreferredSize(new Dimension(100, 300));
// tree.setEnabled(true);
JScrollPane scrollPane = new JScrollPane(tree);
// scrollPane.setSize(100,350);
this.add(scrollPane);

// //////////////////////////////////////////////////////////////////////////
/**
* 最下面层模块，继承JPanel,初始化内容为进度条，并由定时器控制 JPanel--+ --JProcessBar --Timer
*/
class BottomPanel extends JPanel
private JProgressBar pb;

public BottomPanel()
pb = new JProgressBar();
pb.setPreferredSize(new Dimension(550, 20));

// 设置定时器，用来控制进度条的处理
Timer time = new Timer(1, new ActionListener()
int counter = 0;

public void actionPerformed(ActionEvent e)
counter++;
pb.setValue(counter);
Timer t = (Timer) e.getSource();

// 如果进度条达到最大值重新开发计数
if (counter == pb.getMaximum())
t.stop();
counter = 0;
t.start();

);
time.start();

pb.setStringPainted(true);
pb.setMinimum(0);
pb.setMaximum(1000);
pb.setBackground(Color.white);
pb.setForeground(Color.red);

this.add(pb);

/**
* 设置进度条的数据模型
*/
public void setProcessBar(BoundedRangeModel rangeModel)
pb.setModel(rangeModel);

// //////////////////////////////////////////////////////////////////////////
/**
* 最右边模块，继承JPanel,初始化各种按钮 JPanel--+ --JButton --JToggleButton -- JList --
* JCombox --JCheckBox ....
*/
class RightPanel extends JPanel
public RightPanel()
this.setLayout(new GridLayout(8, 1));

// 初始化各种按钮
JCheckBox checkBox = new JCheckBox("CheckButton");
JButton button = new JButton("OpenFile");
button.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e)
JFileChooser file = new JFileChooser();
int result = file.showOpenDialog(new JPanel());
if (result == file.APPROVE_OPTION)
String fileName = file.getSelectedFile().getName();
String dir = file.getCurrentDirectory().toString();
JOptionPane.showConfirmDialog(null,
dir + "" + fileName, "SelectFile",
JOptionPane.YES_OPTION);

);

JToggleButton toggleButton = new JToggleButton("RadioButton");

ButtonGroup buttonGroup = new ButtonGroup();
JRadioButton radioButton1 = new JRadioButton("RadioButton 1", false);
JRadioButton radioButton2 = new JRadioButton("RadioButton 2", false);

// 组合框的处理
JComboBox comboBox = new JComboBox();
comboBox.setToolTipText("ComboBox");
comboBox.addItem("程序员");
comboBox.addItem("分析员");
comboBox.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e)
JComboBox comboBox1 = (JComboBox) e.getSource();
comboBox1.addItem("程序员");
comboBox1.addItem("分析员");

);

// 列表框的处理
DefaultListModel litem = new DefaultListModel();
litem.addElement("SAT");
litem.addElement("SUN");
JList list = new JList(litem);

list.addListSelectionListener(new ListSelectionListener()
public void valueChanged(ListSelectionEvent e)
JList l = (JList) e.getSource();
Object s = l.getSelectedValue();
JOptionPane.showMessageDialog(null, s, "Message !",
JOptionPane.YES_OPTION);

);

// 增加按钮组
buttonGroup.add(radioButton1);
buttonGroup.add(radioButton2);

// 增加各种按钮到JPanel中显示
add(button);
add(toggleButton);
add(checkBox);
add(radioButton1);
add(radioButton2);
add(comboBox);

add(list);

this.setBorder(new EtchedBorder(EtchedBorder.LOWERED,
Color.LIGHT_GRAY, Color.blue));

// //////////////////////////////////////////////////////////////////////////
/**
* 中间层模块，继承JPanel,初始化页签,并在页签中设置文本区，表格, 文本区上下用分隔条分隔 JPanel--+ -JTabbedPane--+
* --Draw --JTable -JTextAreas -JText --JPopupMenu
*/
class CenterPanel extends JPanel
public CenterPanel()
JTabbedPane tab = new JTabbedPane(JTabbedPane.TOP);

JTextField textField = new JTextField(
"Text Area,Click <Text Button> Will select file !");
textField.setActionCommand("textField");

JTextPane textPane = new JTextPane();
textPane.setCursor(new Cursor(Cursor.TEXT_CURSOR));
textPane.setText("Editor,Click the TextArea .");
// textPane.setForeground(new ImageIcon(""));
textPane.addMouseListener(new MouseAdapter()
public void mousePressed(MouseEvent e)
JTextPane textPane = (JTextPane) e.getSource();
textPane.setText("Editor click command success!");
// textField.setText(""+textPane.getText());

);

/*
* UpperCaseDocument doc = new Document();
* textField.setDocumentsetDocument(doc);
* doc.addDocumentListener(new DocumentListener() public void
* changedUpdate(DocumentEvent e) public void
* removeUpdate(DocumentEvent e) public void
* insertUpdate(DocumentEvent e) Document text =
* (Document)e.getDocument(); text.setText("Copy Success !"); );
*/

JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT,
textField, textPane);

JTable table = new JTable(10, 10);
// UIManager.get("Table.focusCellForeground");
// table.showHorizontalLines(true);
// table.showVerticalLines(true);
// table.setGridColor(Color.blue);

JPanel pane = new JPanel();
pane.add(table.getTableHeader(), BorderLayout.NORTH);
pane.add(table);

tab.addTab("Text Action", splitPane);
// tab.addTab(table.getTableHeader());
tab.addTab("Table Action", pane);
tab.setPreferredSize(new Dimension(500, 600));
this.add(tab);
this.setEnabled(true);

public static void main(String args[])
new SwingTest();

参考技术A java编程思想里现成的例子。
// Demonstration of File dialog boxes.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class FileChooserTest extends JFrame
private JTextField
fileName = new JTextField(),
dir = new JTextField();
private JButton
open = new JButton("Open"),
save = new JButton("Save");
public FileChooserTest()
JPanel p = new JPanel();
open.addActionListener(new OpenL());
p.add(open);
save.addActionListener(new SaveL());
p.add(save);
add(p, BorderLayout.SOUTH);
dir.setEditable(false);
fileName.setEditable(false);
p = new JPanel();
p.setLayout(new GridLayout(2,1));
p.add(fileName);
p.add(dir);
add(p, BorderLayout.NORTH);

class OpenL implements ActionListener
public void actionPerformed(ActionEvent e)
JFileChooser c = new JFileChooser();
// Demonstrate "Open" dialog:
int rVal = c.showOpenDialog(FileChooserTest.this);
if(rVal == JFileChooser.APPROVE_OPTION)
fileName.setText(c.getSelectedFile().getName());
dir.setText(c.getCurrentDirectory().toString());

if(rVal == JFileChooser.CANCEL_OPTION)
fileName.setText("You pressed cancel");
dir.setText("");

class SaveL implements ActionListener
public void actionPerformed(ActionEvent e)
JFileChooser c = new JFileChooser();
// Demonstrate "Save" dialog:
int rVal = c.showSaveDialog(FileChooserTest.this);
if(rVal == JFileChooser.APPROVE_OPTION)
fileName.setText(c.getSelectedFile().getName());
dir.setText(c.getCurrentDirectory().toString());

if(rVal == JFileChooser.CANCEL_OPTION)
fileName.setText("You pressed cancel");
dir.setText("");

public static void main(String[] args)
FileChooserTest f = new FileChooserTest();
f.setTitle(f.getClass().getSimpleName());
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.setSize(400, 200);
f.setVisible(true);

///:~ 参考技术B 授人以鱼
不如授人以渔

看看这个吧！！——其实就是对话框嘛！

http://blog.csdn.net/driftingice/archive/2004/08/19/79535.aspx