毕业设计求助,导出的jar文件后双击运行出现如下情况 Java SE Eclipse 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 package com.lzw;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Image;import java.awt.Insets;import java.awt.Toolkit;import java.awt.event.ActionEvent;import java.awt.event.ComponentAdapter;import java.awt.event.ComponentEvent;import java.beans.PropertyVetoException;import java.lang.reflect.Constructor;import java.net.URL;import java.util.HashMap;import java.util.Map;import javax.swing.AbstractAction;import javax.swing.Action;import javax.swing.BoxLayout;import javax.swing.Icon;import javax.swing.ImageIcon;import javax.swing.JButton;import javax.swing.JDesktopPane;import javax.swing.JFrame;import javax.swing.JInternalFrame;import javax.swing.JLabel;import javax.swing.JOptionPane;import javax.swing.JPanel;import javax.swing.JTabbedPane;import javax.swing.SwingConstants;import javax.swing.SwingUtilities;import javax.swing.UIManager;import javax.swing.border.BevelBorder;import javax.swing.event.InternalFrameAdapter;import javax.swing.event.InternalFrameEvent;import com.lzw.login.Login;public class JXCFrame { private JPanel sysManagePanel; private JDesktopPane desktopPane; private JFrame frame; private JLabel backLabel; // 创建窗体的Map类型集合对象 private Map<String, JInternalFrame> ifs = new HashMap<String, JInternalFrame>(); public JXCFrame() { frame = new JFrame("企业进销存管理系统"); frame.getContentPane().setBackground(new Color(170, 188, 120)); frame.addComponentListener(new FrameListener()); frame.getContentPane().setLayout(new BorderLayout()); frame.setSize(800, 600); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); backLabel = new JLabel();// 背景标签 backLabel.setVerticalAlignment(SwingConstants.TOP); backLabel.setHorizontalAlignment(SwingConstants.CENTER); updateBackImage(); // 更新或初始化背景图片 desktopPane = new JDesktopPane(); desktopPane.add(backLabel, new Integer(Integer.MIN_VALUE)); frame.getContentPane().add(desktopPane); JTabbedPane navigationPanel = createNavigationPanel(); // 创建导航标签面板 frame.getContentPane().add(navigationPanel, BorderLayout.NORTH); frame.setVisible(true); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { new Login(); } }); }是这段吧... 还有这段package com.lzw.login;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.KeyAdapter;import java.awt.event.KeyEvent;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JPasswordField;import javax.swing.JTextField;import javax.swing.WindowConstants;import model.TbUserlist;import com.lzw.JXCFrame;import com.lzw.dao.Dao;public class Login extends JFrame { private JLabel userLabel; private JLabel passLabel; private JButton exit; private JButton login; private static TbUserlist user; public Login() { setTitle("登录企业进销存管理系统"); final JPanel panel = new LoginPanel(); panel.setLayout(null); getContentPane().add(panel); setBounds(300, 200, panel.getWidth(), panel.getHeight()); userLabel = new JLabel(); userLabel.setText("用户名:"); userLabel.setBounds(100, 135, 200, 18); panel.add(userLabel); final JTextField userName = new JTextField(); userName.setBounds(150, 135, 200, 18); panel.add(userName); passLabel = new JLabel(); passLabel.setText("密 码:"); passLabel.setBounds(100, 165, 200, 18); panel.add(passLabel); final JPasswordField userPassword = new JPasswordField(); userPassword.addKeyListener(new KeyAdapter() { public void keyPressed(final KeyEvent e) { if (e.getKeyCode() == 10) login.doClick(); } }); userPassword.setBounds(150, 165, 200, 18); panel.add(userPassword); login = new JButton(); login.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent e) { user = Dao.getUser(userName.getText(), userPassword.getText()); if (user.getUsername() == null || user.getName() == null) { userName.setText(null); userPassword.setText(null); return; } setVisible(false); new JXCFrame(); } }); login.setText("登录"); login.setBounds(180, 195, 60, 18); panel.add(login); exit = new JButton(); exit.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent e) { System.exit(0); } }); exit.setText("退出"); exit.setBounds(260, 195, 60, 18); panel.add(exit); setVisible(true); setResizable(false); setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE); } public static TbUserlist getUser() { return user; } public static void setUser(TbUserlist user) { Login.user = user; }} 你这main里new了个Login对象啊。还有那个界面可以拖大吗?你export会不会指定错了main入口? Quote: 引用 5 楼 huxiweng 的回复:不能托大,而且只能通过任务管理器来关闭.是用Fat jar插件导出的... package com.lzw.login;import java.awt.Graphics;import java.awt.Image;import javax.swing.ImageIcon;import javax.swing.JPanel;public class LoginPanel extends JPanel { protected ImageIcon icon; public int width,height; public LoginPanel() { super(); icon = new ImageIcon("res/login.jpg"); width = icon.getIconWidth(); height = icon.getIconHeight(); setSize(width, height); } protected void paintComponent(Graphics g) { super.paintComponent(g); Image img = icon.getImage(); g.drawImage(img, 0, 0,getParent()); }} LoginPanel发一下。还有你用命令行运行看看有没有报错:java -jar *.jar 不能托大,而且只能通过任务管理器来关闭.是用Fat jar插件导出的... 你的代码有问题。根本就不可能是你第一张的图。改成:import java.awt.Graphics;import java.awt.Image;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.KeyAdapter;import java.awt.event.KeyEvent;import javax.swing.ImageIcon;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JPasswordField;import javax.swing.JTextField;import javax.swing.SwingUtilities;import javax.swing.WindowConstants; public class Login extends JFrame { private JLabel userLabel; private JLabel passLabel; private JButton exit; private JButton login; public Login() { setTitle("登录企业进销存管理系统"); final JPanel panel = new LoginPanel(); panel.setLayout(null); getContentPane().add(panel); setBounds(300, 200, panel.getWidth(), panel.getHeight()); userLabel = new JLabel(); userLabel.setText("用户名:"); userLabel.setBounds(100, 135, 200, 18); panel.add(userLabel); final JTextField userName = new JTextField(); userName.setBounds(150, 135, 200, 18); panel.add(userName); passLabel = new JLabel(); passLabel.setText("密 码:"); passLabel.setBounds(100, 165, 200, 18); panel.add(passLabel); final JPasswordField userPassword = new JPasswordField(); userPassword.addKeyListener(new KeyAdapter() { public void keyPressed(final KeyEvent e) { if (e.getKeyCode() == 10) login.doClick(); } }); userPassword.setBounds(150, 165, 200, 18); panel.add(userPassword); login = new JButton(); login.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent e) { } }); login.setText("登录"); login.setBounds(180, 195, 60, 18); panel.add(login); exit = new JButton(); exit.addActionListener(new ActionListener() { public void actionPerformed(final ActionEvent e) { System.exit(0); } }); exit.setText("退出"); exit.setBounds(260, 195, 60, 18); panel.add(exit); setVisible(true); setResizable(false); setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); } public static void main(String[] args) { SwingUtilities.invokeLater(new Runnable() { public void run() { new Login(); } }); }}class LoginPanel extends JPanel { protected ImageIcon icon; public int width,height; public LoginPanel() { super(); icon = new ImageIcon("res/login.jpg"); width = icon.getIconWidth(); height = icon.getIconHeight(); setSize(800, 500); } protected void paintComponent(Graphics g) { super.paintComponent(g); Image img = icon.getImage(); g.drawImage(img, 0, 0,getParent()); }} LoginPanel发一下。还有你用命令行运行看看有没有报错:java -jar *.jar运行没报错 背景图资源文件引用到了吗?导成一个jar包并能代表整个程序,资源文件要确保能引用到。 java连接超时 求一个 表格 java输出数据库方法【大家赶紧来帮帮我啊 着急死了】拜谢 java socket 这么将string转化为byte[]传输和接收 隆重推出一套书,能有免费培训的!!! java时间差问题 在使用JFileChooser保存文件,当浏览目录的时候,怎么样做才能保证文件名Field中的值不变? 小问题,回答后马上给分! 正则表达式怎么写忽略大小写? Swing Quaqua 皮肤包使用困惑 一个简单的调试问题,急!! 【急急急】怎么在panel上添加图形对象 求高手点拨一个“Socket通信”中的问题.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Image;
import java.awt.Insets;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.beans.PropertyVetoException;
import java.lang.reflect.Constructor;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BoxLayout;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JInternalFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTabbedPane;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.border.BevelBorder;
import javax.swing.event.InternalFrameAdapter;
import javax.swing.event.InternalFrameEvent;import com.lzw.login.Login;
public class JXCFrame {
private JPanel sysManagePanel;
private JDesktopPane desktopPane;
private JFrame frame;
private JLabel backLabel;
// 创建窗体的Map类型集合对象
private Map<String, JInternalFrame> ifs = new HashMap<String, JInternalFrame>();
public JXCFrame() {
frame = new JFrame("企业进销存管理系统");
frame.getContentPane().setBackground(new Color(170, 188, 120));
frame.addComponentListener(new FrameListener());
frame.getContentPane().setLayout(new BorderLayout());
frame.setSize(800, 600);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
backLabel = new JLabel();// 背景标签
backLabel.setVerticalAlignment(SwingConstants.TOP);
backLabel.setHorizontalAlignment(SwingConstants.CENTER);
updateBackImage(); // 更新或初始化背景图片
desktopPane = new JDesktopPane();
desktopPane.add(backLabel, new Integer(Integer.MIN_VALUE));
frame.getContentPane().add(desktopPane);
JTabbedPane navigationPanel = createNavigationPanel(); // 创建导航标签面板
frame.getContentPane().add(navigationPanel, BorderLayout.NORTH);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new Login();
}
});
}是这段吧...
package com.lzw.login;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.WindowConstants;import model.TbUserlist;import com.lzw.JXCFrame;
import com.lzw.dao.Dao;
public class Login extends JFrame {
private JLabel userLabel;
private JLabel passLabel;
private JButton exit;
private JButton login;
private static TbUserlist user;
public Login() {
setTitle("登录企业进销存管理系统");
final JPanel panel = new LoginPanel();
panel.setLayout(null);
getContentPane().add(panel);
setBounds(300, 200, panel.getWidth(), panel.getHeight());
userLabel = new JLabel();
userLabel.setText("用户名:");
userLabel.setBounds(100, 135, 200, 18);
panel.add(userLabel);
final JTextField userName = new JTextField();
userName.setBounds(150, 135, 200, 18);
panel.add(userName);
passLabel = new JLabel();
passLabel.setText("密 码:");
passLabel.setBounds(100, 165, 200, 18);
panel.add(passLabel);
final JPasswordField userPassword = new JPasswordField();
userPassword.addKeyListener(new KeyAdapter() {
public void keyPressed(final KeyEvent e) {
if (e.getKeyCode() == 10)
login.doClick();
}
});
userPassword.setBounds(150, 165, 200, 18);
panel.add(userPassword);
login = new JButton();
login.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent e) {
user = Dao.getUser(userName.getText(), userPassword.getText());
if (user.getUsername() == null || user.getName() == null) {
userName.setText(null);
userPassword.setText(null);
return;
}
setVisible(false);
new JXCFrame();
}
});
login.setText("登录");
login.setBounds(180, 195, 60, 18);
panel.add(login);
exit = new JButton();
exit.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent e) {
System.exit(0);
}
});
exit.setText("退出");
exit.setBounds(260, 195, 60, 18);
panel.add(exit);
setVisible(true);
setResizable(false);
setDefaultCloseOperation(WindowConstants.DO_NOTHING_ON_CLOSE);
}
public static TbUserlist getUser() {
return user;
}
public static void setUser(TbUserlist user) {
Login.user = user;
}
}
还有那个界面可以拖大吗?
你export会不会指定错了main入口?
import java.awt.Graphics;
import java.awt.Image;import javax.swing.ImageIcon;
import javax.swing.JPanel;
public class LoginPanel extends JPanel {
protected ImageIcon icon;
public int width,height;
public LoginPanel() {
super();
icon = new ImageIcon("res/login.jpg");
width = icon.getIconWidth();
height = icon.getIconHeight();
setSize(width, height);
}
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Image img = icon.getImage();
g.drawImage(img, 0, 0,getParent());
}
}
java -jar *.jar
不能托大,而且只能通过任务管理器来关闭.
是用Fat jar插件导出的...
改成:import java.awt.Graphics;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.WindowConstants;
public class Login extends JFrame {
private JLabel userLabel;
private JLabel passLabel;
private JButton exit;
private JButton login;
public Login() {
setTitle("登录企业进销存管理系统");
final JPanel panel = new LoginPanel();
panel.setLayout(null);
getContentPane().add(panel);
setBounds(300, 200, panel.getWidth(), panel.getHeight());
userLabel = new JLabel();
userLabel.setText("用户名:");
userLabel.setBounds(100, 135, 200, 18);
panel.add(userLabel);
final JTextField userName = new JTextField();
userName.setBounds(150, 135, 200, 18);
panel.add(userName);
passLabel = new JLabel();
passLabel.setText("密 码:");
passLabel.setBounds(100, 165, 200, 18);
panel.add(passLabel);
final JPasswordField userPassword = new JPasswordField();
userPassword.addKeyListener(new KeyAdapter() {
public void keyPressed(final KeyEvent e) {
if (e.getKeyCode() == 10)
login.doClick();
}
});
userPassword.setBounds(150, 165, 200, 18);
panel.add(userPassword);
login = new JButton();
login.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent e) {
}
});
login.setText("登录");
login.setBounds(180, 195, 60, 18);
panel.add(login);
exit = new JButton();
exit.addActionListener(new ActionListener() {
public void actionPerformed(final ActionEvent e) {
System.exit(0);
}
});
exit.setText("退出");
exit.setBounds(260, 195, 60, 18);
panel.add(exit);
setVisible(true);
setResizable(false);
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
new Login();
}
});
}
}class LoginPanel extends JPanel {
protected ImageIcon icon;
public int width,height;
public LoginPanel() {
super();
icon = new ImageIcon("res/login.jpg");
width = icon.getIconWidth();
height = icon.getIconHeight();
setSize(800, 500);
}
protected void paintComponent(Graphics g) {
super.paintComponent(g);
Image img = icon.getImage();
g.drawImage(img, 0, 0,getParent());
}
}
java -jar *.jar
运行没报错
导成一个jar包并能代表整个程序,资源文件要确保能引用到。