java学习之打造qq聊天系统

客官°小女子只卖身不卖艺 2022-06-02 06:14 155阅读 0赞

## java代码如下 ##

package limengjie;
    
    
    
    import java.awt.Color;
    
    import java.awt.Font;
    
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.awt.event.MouseEvent;
    import java.awt.event.MouseListener;
    import java.sql.Connection;
    import java.sql.PreparedStatement;
    import java.sql.ResultSet;
    import java.sql.SQLException;
    import java.sql.Statement;
    
    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;
    
    
    
    public class JqqF extends JFrame implements MouseListener {
    
    	private static final long serialVersionUID = 1L;
    
    	public static void main(String args[]) {
    		JqqF f = new JqqF();
    		
    
    	}
              
    		public static JTextField name = new JTextField(20);
    		JLabel nameLab = new JLabel("输入qq号：");
    		public  static JPasswordField nam = new JPasswordField(20);
    		JLabel nameLa = new JLabel("输入qq密码：");
    		String path5 = "pic//x.png";  
    	    // 背景图片  
    	    ImageIcon background5 = new ImageIcon(path5); 
    		cell but = new cell(background5);
    		Font fnt = new Font("Serief", Font.BOLD, 15);
    		String path4 = "pic//l.png";  
    	    
    	    ImageIcon background4 = new ImageIcon(path4);  
    			 
    		//cell bt = new cell(background4);	
    	    cell bt = new cell("注册账号");	
    		Font fnt1 = new Font("Serief", Font.BOLD, 11);
    		
    		String path3 = "pic//b.png";  
    	    
    	    ImageIcon background3 = new ImageIcon(path3);  
    			 
    	//	cell bt2 = new cell(background3);	
    	    cell bt2 = new cell("找回密码");	
    		Font fnt2 = new Font("Serief", Font.BOLD, 11);	
    		String path2= "pic//qq3.png";  
    	    
    	    ImageIcon background2= new ImageIcon(path2); 
    	    JLabel label2 = new JLabel(background2);
    	
    	
    	public JqqF() {
    	    super("qq聊天系统");
    	    this.setSize(500, 334);
    		this.setLocation(300, 200);
    		
    
    		this.setVisible(true);
    	    String path = "pic//qq.png";  
            // 背景图片  
            ImageIcon background = new ImageIcon(path);  
            // 把背景图片显示在一个标签里面  
            JLabel label = new JLabel(background);  
            label.setLayout(null);
            // 把标签的大小位置设置为图片刚好填充整个面板  
            label.setBounds(0, 0, this.getWidth(), this.getHeight());  
            // 把内容窗格转化为JPanel，否则不能用方法setOpaque()来使内容窗格透明  
            JPanel imagePanel = (JPanel) this.getContentPane();  
            imagePanel.setOpaque(false);  
            // 把背景图片添加到分层窗格的最底层作为背景  
                
            nameLab.setFont(fnt);
    		nameLab.setForeground(Color.blue);
    		nameLa.setFont(fnt);
    		nameLa.setForeground(Color.blue);
    		bt.setFont(fnt1);
    		bt.setForeground(Color.black);
    		bt2.setFont(fnt2);
    		bt2.setForeground(Color.black);
    
    		nameLab.setBounds(160, 120, 100, 30);
    		bt.setBounds(360, 120, 88, 25);
    		bt.addActionListener(new ActionListener(){
    
    			@Override
    			public void actionPerformed(ActionEvent e) {
    				register x = new register();
    			
    				
    			}
    			
    		});
    		name.setBounds(250, 120, 108, 25);
    		nameLa.setBounds(160, 160, 100, 30);
    		nam.setBounds(250, 160, 108, 25);
    		bt2.setBounds(360, 160, 88, 25);
    		bt2.addActionListener(new ActionListener(){
    
    			@Override
    			public void actionPerformed(ActionEvent e) {
    				new findpassword();
    			
    				
    			}
    			
    		});
    		 nam.setColumns(20) ;
    		label2.setBounds(65, 120, 88, 83);
    		but.setBounds(185, 210, 147, 30);
    		but.addMouseListener(this);
    
    		label.add(nameLab);
    		label.add(bt);
    		label.add(bt2);
    		label.add(nam);
    		label.add(nameLa);
    		label.add(label2);
    		label.add(name);
    		label.add(but);
    		this.getLayeredPane().add(label, new Integer(Integer.MIN_VALUE));  
    		this.setResizable(false);
    		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    		
    		
    		// 让组件可见
    	}
    
    
    	public void mouseClicked(MouseEvent e) {
    		char[] a = nam.getPassword();
    		String s = new String(a);
    		
    		//System.out.print(s);
    		String b = "1";
    		Statement st = null;
    		ResultSet rs = null;
    		boolean t = false;
    		boolean x = false;
    		  Connection con =null;
    		  
    			String sql = "SELECT name,mibao,password FROM qq";
    		  try {
    			con= new JavaMysql().connnecton();
    			st = con.createStatement();
    			rs = st.executeQuery(sql);
    			
    		} catch (ClassNotFoundException e2) {
    			// TODO Auto-generated catch block
    			e2.printStackTrace();
    		} catch (SQLException e2) {
    			// TODO Auto-generated catch block
    			e2.printStackTrace();
    		}
    	try {
    		while(rs.next()){
    			String qq = rs.getString("name");
    			String password1 = rs.getString("password");
    			if(qq.equals(name.getText())){
    				t = true;
    				
    				if(password1.equals(nam.getText())){
    					x = true;
    				}
    			}
    		
    			
    		}
    		con.close();
    		st.close();
    		rs.close();
    	} catch (SQLException e1) {
    		// TODO Auto-generated catch block
    		e1.printStackTrace();
    	}
    		if(t){
    			if (x) {
    				JqqF2 f1 = new JqqF2();
    	
    				this.setVisible(false);
    				f1.setVisible(true);
    			} else {
    	               new passworderror();
    			}
    		}else{
    			new look();
    		}
    	}
    
    	@Override
    	public void mousePressed(MouseEvent e) {
    		// TODO Auto-generated method stub
    
    	}
    
    	@Override
    	public void mouseReleased(MouseEvent e) {
    		// TODO Auto-generated method stub
    
    	}
    
    	@Override
    	public void mouseEntered(MouseEvent e) {
    		// TODO Auto-generated method stub
    
    	}
    
    	@Override
    	public void mouseExited(MouseEvent e) {
    		// TODO Auto-generated method stub
    
    	}
    
    };

[代码运行效果截图]
      
       
      
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