3

我已经在互联网上查看了关于FlowLayout等的内容Group，所有这些都是无用的示例。我只需要一种基本方法来为我的 Java 应用程序做好布局。我会告诉你我的代码：

import java.awt.*;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.border.LineBorder;

public class Test1 {

    //Step1 - Declaring variables
    private static JFrame myFrame;
    private static JPanel myPanel;
    private static JLabel titleLabel=null;
    private static JLabel logIn=null;
    private static JLabel username=null;
    private static JLabel password=null;
    private static JTextField usernameField=null;
    private static JPasswordField passwordField=null;
    private static Color myColor=new Color(0, 102, 204);
    private static Font myFont11=new Font("Tahoma", 1, 11);
    private static Font myFont12bold=new Font("Tahoma", Font.BOLD, 12);
    private static Font myFont11bold=new Font("Tahoma", Font.BOLD, 11);

    //Step2 - Creating Components
    public void createComponents() {


        //Title Label
        titleLabel=new JLabel("My Program");
        titleLabel.setForeground(Color.white);
        titleLabel.setFont(myFont12bold);
        //titleLabel.setVisible(false); //hide it or show it
        //--------------------------------------------------------


        logIn=new JLabel("Log in");
        logIn.setFont(myFont11bold);
        logIn.setForeground(Color.white);
        username=new JLabel("Username");
        username.setLabelFor(usernameField);
        username.setFont(myFont11);
        username.setForeground(Color.white);
        password=new JLabel("Password");
        password.setLabelFor(passwordField);
        password.setFont(myFont11);
        password.setForeground(Color.white);
        usernameField=new JTextField(10);
        usernameField.setBorder(new LineBorder(null, 0, false));
        passwordField=new JPasswordField(10);
        passwordField.setBorder(new LineBorder(null, 0, false));

        //Panel
        myPanel=new JPanel();
        myPanel.setBackground(myColor);
        myPanel.add(titleLabel);       
        myPanel.add(logIn);
        myPanel.add(mySeparator2);
        myPanel.add(username);
        myPanel.add(usernameField);
        myPanel.add(password);
        myPanel.add(passwordField);
        //----------------------------------------------------------

    //Step3 - Main Function
    public static void main(String[] arg) {

        //Frame
        myFrame=new JFrame();

        myFrame.setPreferredSize(new Dimension(400,300));//width:400px, height:300px
        myFrame.setLocationRelativeTo(null);//to show at center of screen
        myFrame.setTitle("My Program");
        Test1 prog=new Test1();
        prog.createComponents();
        myFrame.add(myPanel);
        myFrame.pack();//this alone will not give the frame a size
        myFrame.setVisible(true);
        //----------------------------------------------------------------------

    }

}

这是一个基本的 gui，它有一些标签和一些文本字段，使用 .pack() 方法它们将显示在同一行，我只需要一个简单的小方法来制作一个好的布局

4

6 回答 6

4

由于多种原因，代码中的变量过多static并不是理想的解决方案。尝试使用不同的方法，除非您不考虑Factory Class为您的Project. 看看这个修改后的版本，是否足够好：

import java.awt.*;
import javax.swing.*;
import javax.swing.border.Border;
import javax.swing.border.LineBorder;

public class Test1 {

    //Step1 - Declaring variables
    private JFrame myFrame;
    // Added by me
    private JPanel contentPane;
    private JPanel myPanel;
    private JLabel username=null;
    private JLabel password=null;
    private JTextField usernameField=null;
    private JPasswordField passwordField=null;
    private Color myColor=new Color(200, 102, 204);
    private Font myFont11=new Font("Tahoma", 1, 11);
    private Font myFont12bold=new Font("Tahoma", Font.BOLD, 12);
    private Font myFont11bold=new Font("Tahoma", Font.BOLD, 11);

    //Step2 - Creating Components
    public void createComponents() {

        contentPane = new JPanel();
        contentPane.setOpaque(true);
        contentPane.setBackground(Color.WHITE);
        contentPane.setLayout(new GridBagLayout());
        contentPane.setBorder(BorderFactory.createTitledBorder("My Program"));

        username=new JLabel("Username");
        username.setLabelFor(usernameField);
        username.setFont(myFont11);
        username.setForeground(Color.white);
        password=new JLabel("Password");
        password.setLabelFor(passwordField);
        password.setFont(myFont11);
        password.setForeground(Color.white);
        usernameField=new JTextField(10);
        usernameField.setBorder(new LineBorder(null, 0, false));
        passwordField=new JPasswordField(10);
        passwordField.setBorder(new LineBorder(null, 0, false));

        //Panel
        myPanel=new JPanel();
        myPanel.setOpaque(true);
        myPanel.setBorder(BorderFactory.createTitledBorder("Login"));
        myPanel.setBackground(myColor);
        myPanel.setLayout(new GridLayout(2, 2, 2, 2));
        myPanel.add(username);
        myPanel.add(usernameField);
        myPanel.add(password);
        myPanel.add(passwordField);
        //----------------------------------------------------------
        contentPane.add(myPanel);

        myFrame=new JFrame();
        myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        //myFrame.setPreferredSize(new Dimension(400,300));//width:400px, height:300px
        myFrame.setLocationRelativeTo(null);//to show at center of screen
        myFrame.setTitle("My Program");
        //myFrame.add(myPanel);
        myFrame.setContentPane(contentPane);
        myFrame.pack();//this alone will not give the frame a size
        myFrame.setVisible(true);
    }   

    //Step3 - Main Function
    public static void main(String[] arg) {
        SwingUtilities.invokeLater(new Runnable()
        {
            public void run()
            {
                new Test1().createComponents();
            }
        });
    }

}

这是输出：

登录窗口

于 2012-05-22T11:40:22.607 回答
3

1）您在调试、Java 约定以及打包方法和类方面遇到问题，您遇到了问题

2）添加一个新的花括号

    }//add this one

    public static void main(String[] arg) {


    }
}

3) 在Initail Thread中构建 Swing GUI ，那么你的主类应该是

public static void main(String[] arg) {
    SwingUtilities.invokeLater(new Runnable() {

        public void run() {
            myFrame = new JFrame();

            myFrame.setPreferredSize(new Dimension(400, 300));//width:400px, height:300px
            myFrame.setLocationRelativeTo(null);//to show at center of screen
            myFrame.setTitle("My Program");
            Test1 prog = new Test1();
            prog.createComponents();
            myFrame.add(myPanel);
            myFrame.pack();//this alone will not give the frame a size
            myFrame.setVisible(true);
        }
    });
}

4) setSizefor JFrameand then usage ofpack();是相反的使用pack()，而不是setSize

5）您查看SpringLayout或GridBagLayout以防您将更多类似的 JComponents 放在那里，

于 2012-05-22T11:43:59.517 回答
2

对于那些类型的 UI（标签 - 编辑器组件），我发现JGoodiesFormLayout是最好的之一，而且非常易于使用。

于 2012-05-22T13:25:28.730 回答
2

看起来你有一个登录表单......
你可以在一行上使用两行一列的网格布局，
它将包含标签，文本字段，如果你不想给，第二个也与额外的按钮相同最后一个文本字段的事件处理程序

这是我在不使用任何拖放工具的情况下设计的一个简单登录表单的代码

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class LoginFrame extends JFrame{
    User user;
    private JPanel buttonPanel;
    JButton btnLogin;
    JButton btnRegister;
    JButton btnExit;
    JPanel panelUser;
    JPanel panelPwd;
    JLabel nameLabel;
    final JTextField txtUserName;
    final JPasswordField txtPwd;

    public LoginFrame() {
        user = new User();
        setTitle("Demo for next Button frame");
        setSize(370, 169);
        JPanel masterPanel = new JPanel(); 
        buttonPanel  = new JPanel();


        btnLogin = new JButton("Log in");
        btnExit = new JButton("Exit");
        btnRegister = new JButton("Register");

        buttonPanel.add(btnLogin);
        buttonPanel.add(btnExit);
        buttonPanel.add(btnRegister);

        panelUser = new JPanel();
        panelPwd = new JPanel();

        nameLabel = new JLabel("user name");
        txtUserName = new JTextField("", 20);
        JLabel pwdLabel = new JLabel("password");
        txtPwd = new JPasswordField("", 20);

        panelUser.add(nameLabel);
        panelUser.add(txtUserName);
        panelPwd.add(pwdLabel);
        panelPwd.add(txtPwd);

        masterPanel.add(panelUser);
        masterPanel.add(panelPwd);
        masterPanel.add(buttonPanel);
        add(masterPanel, BorderLayout.CENTER);

        btnRegister.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent arg0) {

                user.setUserName(JOptionPane.showInputDialog(null,"Enter user name you want"));
                user.setPassword(JOptionPane.showInputDialog(null,"Enter password you want"));
                JOptionPane.showMessageDialog(null, "now log in with your user name and password");
                user.saveFile();
            }
        });

        btnLogin.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent event){

                if(txtUserName.getText().equals(user.getUserName()) && (new String(txtPwd.getPassword())).equals(user.getPassword())){
                                dispose();
                                user.saveLog();
                                TimeFrame tFrame = new TimeFrame(user.getUserName());
                                tFrame.setVisible(true);
                                tFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                                Dimension dim = Toolkit.getDefaultToolkit().getScreenSize();

                                // Determine the new location of the window
                                int w = tFrame.getSize().width;
                                int h = tFrame.getSize().height;
                                int x = (dim.width-w)/2;
                                int y = (dim.height-h)/2;

                                // Move the window
                                tFrame.setLocation(x, y);

                        } else {
                            JOptionPane.showMessageDialog(null,"User name or password don't match","Acces Denied", JOptionPane.ERROR_MESSAGE);
                        }
            }

        });

        btnExit.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent event){
                dispose();
            }
        });


    }
}

你可以看到代码...

有基本布局作为流式布局 Swing 应用程序的默认布局和
流式布局中的网格布局 您添加到框架中的组件从右到左流动 每次您更改框架的大小时，它们的方向都会改变，从而倾向于流因此称为流布局

在网格布局中，组件对齐到 nxm 维度的网格中 n：行数和 n：类似于网格的列数，因此如果您调整窗口大小，则在网格布局中不会发生任何事情，因为它设计用于相同的目的... 流布局和 girf 布局的输出组合如下所示 仅供参考：标有2x2网格的框架是网格布局的输出其余其他框架是流布局的o / p请研究改变窗口大小按钮排列的差异欢呼

于 2012-05-22T14:34:50.617 回答
1

你不使用IDE吗？JDeveloper 和 Netbeans 是具有拖放功能的出色解决方案

于 2012-05-22T11:35:45.943 回答
0

您可以使用 windowBuilder eclipse 插件，它有助于以您想要的方式形成布局。例如，我使用 windowbuilder 创建了一个简单的布局，它以这种方式形成代码

import java.awt.Color;import java.awt.EventQueue;import java.awt.Font;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.GroupLayout;import javax.swing.GroupLayout.Alignment;import javax.swing.JButton;import javax.swing.JCheckBox;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JMenu;import javax.swing.JMenuBar;import javax.swing.JPanel;import javax.swing.JPasswordField;import javax.swing.JProgressBar;import javax.swing.JTextField;import javax.swing.LayoutStyle.ComponentPlacement;import javax.swing.SwingConstants;import javax.swing.border.EmptyBorder;import javax.swing.event.MenuEvent;import javax.swing.event.MenuListener;public class LoginFrame2 extends JFrame implements ActionListener,MenuListener{private static final long serialVersionUID=1L;private JPanel contentPane;private JTextField userNameTextField;private JPasswordField passwordField;private JButton btnChangePassword;private JProgressBar progressBar;private JCheckBox chckbxShowPassword;private static final Color GREEN_COLOR=new Color(107,142,35);private static final Color RED_COLOR=new Color(255,0,0);private JLabel lblStatusmessage,lblProgressstatus;private JPanel footerPanel;private JLabel lblFooter;private JMenuBar menuBar;private JMenu mnConfigure;public static void main(String[]args){EventQueue.invokeLater(new Runnable(){public void run(){try{LoginFrame2 frame=new LoginFrame2();frame.setVisible(true);}catch(Exception e){e.printStackTrace();}}});}
public LoginFrame2(){setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100,100,455,350);menuBar=new JMenuBar();setJMenuBar(menuBar);mnConfigure=new JMenu("Configure");mnConfigure.addMenuListener(this);menuBar.add(mnConfigure);contentPane=new JPanel();contentPane.setBorder(new EmptyBorder(5,5,5,5));setContentPane(contentPane);JPanel topPanel=new JPanel();JPanel centerPanel=new JPanel();JPanel bottomPanel=new JPanel();footerPanel=new JPanel();GroupLayout gl_contentPane=new GroupLayout(contentPane);gl_contentPane.setHorizontalGroup(gl_contentPane.createParallelGroup(Alignment.LEADING).addGroup(Alignment.TRAILING,gl_contentPane.createSequentialGroup().addGroup(gl_contentPane.createParallelGroup(Alignment.TRAILING).addComponent(bottomPanel,GroupLayout.DEFAULT_SIZE,438,Short.MAX_VALUE).addComponent(footerPanel,GroupLayout.PREFERRED_SIZE,438,Short.MAX_VALUE).addComponent(topPanel,Alignment.LEADING,GroupLayout.DEFAULT_SIZE,438,Short.MAX_VALUE).addComponent(centerPanel,Alignment.LEADING,GroupLayout.DEFAULT_SIZE,438,Short.MAX_VALUE)).addContainerGap()));gl_contentPane.setVerticalGroup(gl_contentPane.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPane.createSequentialGroup().addComponent(topPanel,GroupLayout.PREFERRED_SIZE,37,GroupLayout.PREFERRED_SIZE).addPreferredGap(ComponentPlacement.RELATED).addComponent(centerPanel,GroupLayout.DEFAULT_SIZE,154,Short.MAX_VALUE).addPreferredGap(ComponentPlacement.RELATED).addComponent(bottomPanel,GroupLayout.PREFERRED_SIZE,61,GroupLayout.PREFERRED_SIZE).addPreferredGap(ComponentPlacement.RELATED).addComponent(footerPanel,GroupLayout.PREFERRED_SIZE,14,GroupLayout.PREFERRED_SIZE).addGap(1)));lblFooter=new JLabel("Developer : KEA3");lblFooter.setHorizontalAlignment(SwingConstants.RIGHT);lblFooter.setFont(new Font("Tahoma",Font.PLAIN,8));GroupLayout gl_footerPanel=new GroupLayout(footerPanel);gl_footerPanel.setHorizontalGroup(gl_footerPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_footerPanel.createSequentialGroup().addGap(100).addComponent(lblFooter,GroupLayout.PREFERRED_SIZE,338,GroupLayout.PREFERRED_SIZE).addContainerGap(GroupLayout.DEFAULT_SIZE,Short.MAX_VALUE)));gl_footerPanel.setVerticalGroup(gl_footerPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_footerPanel.createSequentialGroup().addComponent(lblFooter,GroupLayout.PREFERRED_SIZE,14,GroupLayout.PREFERRED_SIZE).addContainerGap(GroupLayout.DEFAULT_SIZE,Short.MAX_VALUE)));footerPanel.setLayout(gl_footerPanel);progressBar=new JProgressBar();lblProgressstatus=new JLabel("progressStatus");lblProgressstatus.setFont(new Font("Tahoma",Font.BOLD,11));lblProgressstatus.setHorizontalAlignment(SwingConstants.CENTER);GroupLayout gl_bottomPanel=new GroupLayout(bottomPanel);gl_bottomPanel.setHorizontalGroup(gl_bottomPanel.createParallelGroup(Alignment.TRAILING).addGroup(gl_bottomPanel.createSequentialGroup().addContainerGap().addComponent(lblProgressstatus,GroupLayout.DEFAULT_SIZE,412,Short.MAX_VALUE).addContainerGap()).addComponent(progressBar,Alignment.LEADING,GroupLayout.DEFAULT_SIZE,438,Short.MAX_VALUE));gl_bottomPanel.setVerticalGroup(gl_bottomPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_bottomPanel.createSequentialGroup().addContainerGap().addComponent(progressBar,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE).addPreferredGap(ComponentPlacement.RELATED).addComponent(lblProgressstatus).addContainerGap(GroupLayout.DEFAULT_SIZE,Short.MAX_VALUE)));bottomPanel.setLayout(gl_bottomPanel);JLabel lblAlias=new JLabel("Alias :");lblAlias.setFont(new Font("Tahoma",Font.BOLD,11));lblAlias.setHorizontalAlignment(SwingConstants.RIGHT);JLabel lblPassword=new JLabel("Password :");lblPassword.setFont(new Font("Tahoma",Font.BOLD,11));lblPassword.setHorizontalAlignment(SwingConstants.RIGHT);userNameTextField=new JTextField();userNameTextField.setColumns(10);passwordField=new JPasswordField();chckbxShowPassword=new JCheckBox("Show Password");chckbxShowPassword.setFont(new Font("Tahoma",Font.BOLD,11));btnChangePassword=new JButton("Change Password");GroupLayout gl_centerPanel=new GroupLayout(centerPanel);gl_centerPanel.setHorizontalGroup(gl_centerPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_centerPanel.createSequentialGroup().addGroup(gl_centerPanel.createParallelGroup(Alignment.TRAILING,false).addComponent(lblPassword,Alignment.LEADING,GroupLayout.DEFAULT_SIZE,GroupLayout.DEFAULT_SIZE,Short.MAX_VALUE).addGroup(Alignment.LEADING,gl_centerPanel.createSequentialGroup().addContainerGap().addComponent(lblAlias,GroupLayout.PREFERRED_SIZE,151,GroupLayout.PREFERRED_SIZE))).addPreferredGap(ComponentPlacement.UNRELATED).addGroup(gl_centerPanel.createParallelGroup(Alignment.LEADING).addComponent(btnChangePassword).addComponent(chckbxShowPassword).addComponent(passwordField,GroupLayout.DEFAULT_SIZE,251,Short.MAX_VALUE).addComponent(userNameTextField,GroupLayout.DEFAULT_SIZE,251,Short.MAX_VALUE)).addContainerGap()));gl_centerPanel.setVerticalGroup(gl_centerPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_centerPanel.createSequentialGroup().addGap(21).addGroup(gl_centerPanel.createParallelGroup(Alignment.BASELINE).addComponent(lblAlias).addComponent(userNameTextField,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE)).addPreferredGap(ComponentPlacement.UNRELATED).addGroup(gl_centerPanel.createParallelGroup(Alignment.BASELINE).addComponent(lblPassword).addComponent(passwordField,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE)).addGap(18).addComponent(chckbxShowPassword).addPreferredGap(ComponentPlacement.UNRELATED).addComponent(btnChangePassword).addContainerGap(15,Short.MAX_VALUE)));btnChangePassword.addActionListener(this);centerPanel.setLayout(gl_centerPanel);lblStatusmessage=new JLabel("Status Message");lblStatusmessage.setFont(new Font("Tahoma",Font.BOLD|Font.ITALIC,13));lblStatusmessage.setHorizontalAlignment(SwingConstants.CENTER);JLabel lblHeader=new JLabel("Header\r\n");lblHeader.setFont(new Font("Tahoma",Font.BOLD,13));lblHeader.setHorizontalAlignment(SwingConstants.CENTER);GroupLayout gl_topPanel=new GroupLayout(topPanel);gl_topPanel.setHorizontalGroup(gl_topPanel.createParallelGroup(Alignment.TRAILING).addGroup(Alignment.LEADING,gl_topPanel.createSequentialGroup().addGap(10).addGroup(gl_topPanel.createParallelGroup(Alignment.LEADING).addComponent(lblStatusmessage,Alignment.TRAILING,GroupLayout.DEFAULT_SIZE,428,Short.MAX_VALUE).addComponent(lblHeader,Alignment.TRAILING,GroupLayout.DEFAULT_SIZE,428,Short.MAX_VALUE)).addContainerGap()));gl_topPanel.setVerticalGroup(gl_topPanel.createParallelGroup(Alignment.TRAILING).addGroup(Alignment.LEADING,gl_topPanel.createSequentialGroup().addComponent(lblHeader).addPreferredGap(ComponentPlacement.RELATED,7,Short.MAX_VALUE).addComponent(lblStatusmessage)));topPanel.setLayout(gl_topPanel);contentPane.setLayout(gl_contentPane);lblStatusmessage.setVisible(false);lblProgressstatus.setVisible(false);progressBar.setVisible(false);}@Override
public void actionPerformed(ActionEvent e){System.out.println("Ding"+e.getActionCommand());}@Override
public void menuCanceled(MenuEvent arg0){}@Override
public void menuDeselected(MenuEvent arg0){}@Override
public void menuSelected(MenuEvent arg0){new ConfigureDialog(this).setVisible(true);}}

你甚至可以从现有的 jframe 打开一个弹出窗口

    import java.awt.BorderLayout;import java.awt.Dimension;import java.awt.FlowLayout;import java.awt.Point;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.File;import javax.swing.GroupLayout;import javax.swing.GroupLayout.Alignment;import javax.swing.JButton;import javax.swing.JDialog;import javax.swing.JFileChooser;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JTextField;import javax.swing.LayoutStyle.ComponentPlacement;import javax.swing.border.EmptyBorder;import javax.swing.filechooser.FileFilter;import javax.swing.filechooser.FileNameExtensionFilter;public class ConfigureDialog extends JDialog implements ActionListener{private static final long serialVersionUID=1L;private final JPanel contentPanel=new JPanel();private JTextField driverPathTextField;private JLabel lblDriverPath;private JButton btnBrowse;public static void main(String[]args){try{ConfigureDialog dialog=new ConfigureDialog(new JFrame());dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);dialog.setVisible(true);}catch(Exception e){e.printStackTrace();}}
public ConfigureDialog(JFrame parent){super(parent,"",true);if(parent!=null){Dimension parentSize=parent.getSize();Point p=parent.getLocation();setLocation(p.x+parentSize.width+100,p.y+parentSize.height/1);}
setBounds(100,100,479,141);getContentPane().setLayout(new BorderLayout());contentPanel.setBorder(new EmptyBorder(5,5,5,5));getContentPane().add(contentPanel,BorderLayout.CENTER);{lblDriverPath=new JLabel("Driver Path : ");}
{driverPathTextField=new JTextField(System.getProperty("web.ie.driver"));driverPathTextField.setColumns(10);}
btnBrowse=new JButton("Browse");GroupLayout gl_contentPanel=new GroupLayout(contentPanel);gl_contentPanel.setHorizontalGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPanel.createSequentialGroup().addContainerGap().addComponent(lblDriverPath).addPreferredGap(ComponentPlacement.RELATED).addGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addComponent(btnBrowse).addComponent(driverPathTextField,GroupLayout.DEFAULT_SIZE,207,Short.MAX_VALUE)).addContainerGap()));gl_contentPanel.setVerticalGroup(gl_contentPanel.createParallelGroup(Alignment.LEADING).addGroup(gl_contentPanel.createSequentialGroup().addGap(5).addGroup(gl_contentPanel.createParallelGroup(Alignment.BASELINE).addComponent(driverPathTextField,GroupLayout.PREFERRED_SIZE,GroupLayout.DEFAULT_SIZE,GroupLayout.PREFERRED_SIZE).addComponent(lblDriverPath)).addPreferredGap(ComponentPlacement.UNRELATED).addComponent(btnBrowse).addContainerGap(21,Short.MAX_VALUE)));contentPanel.setLayout(gl_contentPanel);{JPanel buttonPane=new JPanel();buttonPane.setLayout(new FlowLayout(FlowLayout.RIGHT));getContentPane().add(buttonPane,BorderLayout.SOUTH);{JButton okButton=new JButton("OK");okButton.setActionCommand("OK");okButton.addActionListener(this);buttonPane.add(okButton);getRootPane().setDefaultButton(okButton);}
{JButton cancelButton=new JButton("Cancel");cancelButton.setActionCommand("Cancel");cancelButton.addActionListener(this);buttonPane.add(cancelButton);}}
btnBrowse.addActionListener(this);}@Override
public void actionPerformed(ActionEvent e){if("Cancel".contains(e.getActionCommand())){dispose();}else if("Browse".contains(e.getActionCommand())){JFileChooser fileopen=new JFileChooser();FileFilter filter=new FileNameExtensionFilter("exe file","exe");fileopen.addChoosableFileFilter(filter);fileopen.setAcceptAllFileFilterUsed(false);fileopen.setFileFilter(filter);fileopen.setFileSelectionMode(JFileChooser.FILES_ONLY);int ret=fileopen.showOpenDialog(this);if(ret==JFileChooser.APPROVE_OPTION){File file=fileopen.getSelectedFile();System.out.println(file);driverPathTextField.setText(file.getPath());}}else if("OK".contains(e.getActionCommand())){System.setProperty("web.ie.driver",driverPathTextField.getText());dispose();}}}

我知道这篇文章更长了......如果有人想要关于这个的信息，我的回答可能会有所帮助......;）

于 2015-05-17T07:03:53.603 回答