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文件大小: 7mb
下载次数: 0
上传时间: 2014-12-30
详细说明： 仓库管理系统，内容详细， package src; import java.awt.AlphaComposite; import java.awt.GradientPaint; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.Image; import java.awt.RenderingHints; import java.awt.Toolkit; import javax.swing.*; import java.awt.event.*; import java.awt.GridBagConstraints; import java.awt.GridBagLayout; import java.text.SimpleDateFormat; import java.util.Date; public class Logo implements ActionListener{ public static final String logoon = "登录"; public static final String helpt = " ;帮助"; public static final String logooff ="退出"; public static final String user = "用 户:"; public static final String password = "密 码:"; private javax.swing.JTextField userText; private javax.swing.JPasswordField userpwd; private javax.swing.JPanel jp = new javax.swing.JPanel(){ public void paintComponent(Graphics g){ super.paintComponent(g); if(!isOpaque()){return;} Graphics2D g2d = (Graphics2D) g; //int rule = AlphaComposite.SRC_OVER; AlphaComposite opaque = AlphaComposite.SrcOver; //AlphaComposite blend = AlphaComposite.getInstance(rule, 0.6f); //AlphaComposite set = AlphaComposite.Src; int width = getWidth(); int height = getHeight(); GradientPaint gradientPaint = new GradientPaint(0,0,java.awt.Color.green,width/2,height/2,java.awt.Color.yellow,false); g2d.setComposite(opaque); g2d.setPaint(gradientPaint); g2d.fillRect(0, 0, width,height); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_OFF); } }; private javax.swing.JButton logoin = null; private JFrame logo_Frame = new JFrame(logoon); /*public Logo() { // TODO 自动生成构造函数存根 } */ public Logo(){ try{ UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName()); }catch(Exception exe){System.err.print(exe.getMessage());} JFrame.setDefaultLookAndFeelDecorated(true); Toolkit tools = logo_Frame.getToolkit(); Image logo = tools.getImage("res/logo.jpg"); logo_Frame = new JFrame(logoon); logo_Frame.setIconImage(logo); jp.setLayout(new GridBagLayout()); jp.setBackground(java.awt.Color.pink); javax.swing.ImageIcon pic = new javax.swing.ImageIcon("res/logo1.jpg"); javax.swing.JLabel picture = new javax.swing.JLabel(pic); setupComponent(picture,0,0,GridBagConstraints.ABOVE_BASELINE_LEADING,1,true); javax.swing.JLabel users = new javax.swing.JLabel(user); setupComponent(users,0,1,1,1,false); javax.swing.JLabel pas = new javax.swing.JLabel(password); setupComponent(pas,0,2,1,1,false); userText = new javax.swing.JTextField(12); userText.requestFocus(); userText.addKeyListener(new KeyListener(){ public void keyTyped(KeyEvent e){} public void keyReleased(KeyEvent e){} public void keyPressed(KeyEvent e){ if((e.getKeyChar() == KeyEvent.VK_ENTER )&&(userText.getText().trim() != "")){ userpwd.requestFocus(); } } }); setupComponent(userText,1,1,1,1,false); userpwd = new javax.swing.JPasswordField(12); userpwd.addKeyListener(new KeyListener(){ public void keyTyped(KeyEvent e){} public void keyPressed(KeyEvent e){ if((e.getKeyChar() == KeyEvent.VK_ENTER) && (userpwd.getText().trim() != "")){ logoin.requestFocus(); } else{ userpwd.requestFocus(); } } public void keyReleased(KeyEvent e){ } }); setupComponent(userpwd,1,2,1,1,false); logoin = new javax.swing.JButton(logoon); logoin.addKeyListener(new KeyListener(){ public void keyTyped(KeyEvent e){} public void keyReleased(KeyEvent e){} public void keyPressed(KeyEvent e){ if((e.getKeyChar()==KeyEvent.VK_ENTER )){ if((userText.getText().trim() == "") ){ javax.swing.JOptionPane.showMessageDialog(null, "必须输入用户名！","输入用户名",JOptionPane.ERROR_MESSAGE); userText.requestFocus();} if((userpwd.getText().trim() =="")){ javax.swing.JOptionPane.showMessageDialog(null, "必须输入密码！","输入密码",JOptionPane.ERROR_MESSAGE); userpwd.requestFocus(); } boolean b = USeDB.logoon(userText.getText().trim(), userpwd.getText().trim()); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date date = new Date(System.currentTimeMillis()); String day = sdf.format(date); String s ="'"+day+"','"+userText.getText().trim()+"','"+"登录"+"'"; String sql = "insert into handle_record values("+s+")"; USeDB.UpdateDB(sql); if(b){ logo_Frame.dispose(); new My_MainFrame(userText.getText().trim()); } userText.setText(""); userpwd.setText(""); userText.requestFocus(); } } }); logoin.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e){ if((userText.getText().trim() == "")){ userText.requestFocus(); } if((userpwd.getText().trim() =="")){ userpwd.requestFocus(); } if(userText.getText().trim()!=""&& userpwd.getText().trim()!=""){ boolean b = USeDB.logoon(userText.getText().trim(), userpwd.getText().trim()); SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); Date date = new Date(System.currentTimeMillis()); String day = sdf.format(date); String s ="'"+day+"','"+userText.getText().trim()+"','"+"登录"+"'"; String sql = "insert into handle_record values("+s+")"; USeDB.UpdateDB(sql); if(b==true){ logo_Frame.dispose(); new My_MainFrame(userText.getText().trim()); }else{ userText.setText(""); userpwd.setText(""); userText.requestFocus();} } } }); setupComponent(logoin,0,3,1,1,true); javax.swing.JButton help = new javax.swing.JButton(helpt); help.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e1){ JOptionPane.showMessageDialog(null,"你需要一个注册的用户名和正确的密码！","帮助",JOptionPane.ERROR_MESSAGE); userText.setText(""); userpwd.setText(""); userText.setFocusable(true); } }); setupComponent(help,2,3,1,1,true); javax.swing.JButton exit = new javax.swing.JButton(logooff); exit.addActionListener(new ActionListener(){ public void actionPerformed(ActionEvent e2){ logo_Frame.dispose(); System.exit(0); } }); setupComponent(exit,1,3,1,1,true); java.awt.Dimension d = tools.getScreenSize(); int width = (int)(d.getWidth()-350) /2; int height = (int)(d.getHeight()-240)/2; logo_Frame.add(jp); logo_Frame.setAlwaysOnTop(true); logo_Frame.setLocation(width, height); logo_Frame.setSize(350, 240); logo_Frame.pack(); logo_Frame.validate(); logo_Frame.setVisible(true); } /** * @param args */ public void actionPerformed(ActionEvent e){ } public static void main(String[] args) { // TODO 自动生成方法存根 new Logo(); } public void setupComponent(JComponent component,int gridx,int gridy,int gridwidth,int ipadx,boolean fill){ final GridBagConstraints gridBagConstrains = new GridBagConstraints(); gridBagConstrains.gridx = gridx; gridBagConstrains.gridy = gridy; gridBagConstrains.insets = new java.awt.Insets(5,3,3,3); if(gridwidth>1) gridBagConstrains.gridwidth = gridwidth; if(ipadx > 0) gridBagConstrains.ipadx = ipadx; if(fill) gridBagConstrains.fill = GridBagConstraints.HORIZONTAL; jp.add(component,gridBagConstrains); } } ...展开收缩
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