Java实现登陆注册界面

怼烎@ 2023-02-21 04:58 6阅读 0赞

**一、工具准备**  
1.Java开发集成工具 : mycilpse (可以采用更先进的idea intellij)  
2.包：jdbc包  
3.数据库：sql server

**二、知识需求**

1.java swing (也可采用SWT designer进行辅助界面设计 )
           
           所用组件：
           JButton:登陆
           JLabel:使用JLabel(new ImgeIcon(url)),进行背景设置，最好使用相对地址 "/" 将图片放在程序文件之中，也可使用本地地址：“\"
           JTextField:文本框,进行账号和密码输入
           JComboBox:下拉列表框，进行登陆角色选择
           
           更多可以参考这个博主文章或者官方文档，写得很全。[Swing 学习](https://blog.csdn.net/xietansheng/article/details/72814492)
           
           2.sql （连数据库请见 https://blog.csdn.net/qq_44654974/article/details/106676570）
         
          登陆注册：只需要进行用户检测和添加
          select * from usertable 
          Insert usertable values('Username','Password')

**三、代码**

登陆界面：

package View;
    
    import java.awt.Color;
    import java.awt.Font;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.awt.event.MouseAdapter;
    import java.awt.event.MouseEvent;
    
    import javax.swing.BorderFactory;
    import javax.swing.ImageIcon;
    import javax.swing.JButton;
    import javax.swing.JComboBox;
    import javax.swing.JFrame;
    import javax.swing.JLabel;
    import javax.swing.JPanel;
    import javax.swing.JPasswordField;
    import javax.swing.JTextField;
    
    public class Login extends JFrame { 
    	public static String usern;
    
    	public static void main(String args[]) { 
    		new Login();
    	}
    
    	Login() { 
    		Content();
    		this.setTitle("企业员工健康系统");
    		this.setDefaultCloseOperation(EXIT_ON_CLOSE);
    		this.setLocation(600, 300);
    		this.setSize(800, 560);
    		this.setVisible(true);
    	}
    
    	void Content() { 
    
    		// 背景设置
    		JLabel bg = new JLabel(new ImageIcon("Images/LoginIcon/LoginBg.png"));
    		this.setContentPane(bg);
    
    		// 登陆板块内容
    
    		JLabel logo = new JLabel("你的健康，我来负责");
    		logo.setBounds(20, 20, 180, 25);
    		logo.setFont(new Font(null, Font.BOLD, 16));// 字体设置
    		logo.setForeground(Color.orange);
    		this.add(logo);
    
    		JLabel label = new JLabel("欢迎登陆");
    		label.setBounds(380, 180, 120, 25);
    		label.setFont(new Font(null, Font.BOLD, 18));// 字体设置
    		this.add(label);
    
    		JLabel User = new JLabel("账号");
    		User.setBounds(320, 222, 30, 25);
    		User.setFont(new Font(null, Font.PLAIN, 14));// 字体设置
    		this.add(User);
    
    		JLabel User1 = new JLabel(new ImageIcon("Images/LoginIcon/User.png"));
    		User1.setBounds(350, 220, 30, 30);
    		this.add(User1);
    
    		JLabel Password = new JLabel("密码");
    		Password.setBounds(320, 254, 30, 25);
    		Password.setFont(new Font(null, Font.PLAIN, 14));// 字体设置
    		this.add(Password);
    
    		JLabel Password1 = new JLabel(new ImageIcon("Images/LoginIcon/Lock.png"));
    		Password1.setBounds(352, 250, 30, 30);
    		this.add(Password1);
    
    		JLabel Type = new JLabel("用户");
    		Type.setBounds(320, 286, 30, 25);
    		Type.setFont(new Font(null, Font.PLAIN, 14));// 字体设置
    		this.add(Type);
    
    		JLabel Type1 = new JLabel(new ImageIcon("Images/LoginIcon/Type.png"));
    		Type1.setBounds(350, 280, 30, 30);
    		this.add(Type1);
    
    		// 文本框和按钮
    
    		JButton btn = new JButton("登陆");
    		btn.setBounds(320, 320, 70, 25);
    		this.add(btn);
    
    		JButton btn1 = new JButton("注册");
    		btn1.setBounds(430, 320, 70, 25);
    		this.add(btn1);
    
    		JTextField User2 = new JTextField();
    		User2.setBounds(380, 222, 120, 25);
    		this.add(User2);
    
    		JPasswordField Password2 = new JPasswordField();
    		Password2.setBounds(380, 254, 120, 25);
    		this.add(Password2);
    
    		String[] listData = new String[] {  "员工", "企业管理者", "系统管理员" };
    		JComboBox<String> type1 = new JComboBox<String>(listData);
    
    		type1.setBounds(380, 284, 120, 25);
    		this.add(type1);
    
    		JPanel panel = new JPanel(null);
    		panel.setBounds(290, 170, 245, 200);
    		panel.setBackground(Color.WHITE);
    		panel.setBorder(BorderFactory.createLineBorder(Color.gray));
    		this.add(panel);
    
    		JLabel Mention = new JLabel("");
    		Mention.setBounds(310, 100, 280, 25);
    		Mention.setForeground(Color.RED);
    		Mention.setFont(new Font(null, Font.BOLD, 14));
    		this.add(Mention);
    
    		// 登陆事件
    		btn.addActionListener(new ActionListener() { 
    
    			@Override
    			public void actionPerformed(ActionEvent e) { 
    				// TODO Auto-generated method stub
    				// System.out.print(type1.getSelectedIndex());
    				String LoginID = User2.getText();
    				String password = Password2.getText();
    				String type = listData[type1.getSelectedIndex()];
    
    				if (new Data.Login().Check(LoginID, password, type)) { 
    					dispose();
    
    					if (type.equals("员工")) { 
    						usern = LoginID;
    						new EmployMain().open();
    					} else if (type.equals("企业管理者")) { 
    						new Admin().open();
    					} else if (type.equals("系统管理员")) { 
    						//
    						dispose();
    						new ADMIN1();
    					}
    
    				} else { 
    					Mention.setText("输入信息有误，请重新输入");
    
    					try { 
    
    						Thread.sleep(2000);
    
    					} catch (InterruptedException e1) { 
    						// TODO Auto-generated catch block
    						e1.printStackTrace();
    					}
    
    					// Mention.setText("2");
    
    				}
    
    			}
    
    		});
    
    		// 注册事件
    		btn1.addActionListener(new ActionListener() { 
    
    			@Override
    			public void actionPerformed(ActionEvent e) { 
    				// TODO Auto-generated method stub
    				dispose();
    				Register R = new Register();
    			}
    
    		});
    	}
    }

效果展示：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0NjU0OTc0_size_16_color_FFFFFF_t_70_pic_center]  
注册界面：

package View;
    
    import java.awt.Color;
    import java.awt.EventQueue;
    import java.awt.Font;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
    import java.text.SimpleDateFormat;
    import java.util.Date;
    
    import javax.swing.BorderFactory;
    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 Register extends JFrame{ 
    	String CODE;
    	String NAME;
    	/** * Launch the application. */
    	public static void main(String[] args) { 
    	  new Register();
    	}
    
    	/** * Create the application. */
    	public Register() { 
    		initialize();
    		this.setBounds(500, 300, 800, 560);
    		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    		this.setTitle("注册界面");
    		this.setLocation(500, 300);
    		this.setVisible(true);
    	}
    
    	/** * Initialize the contents of the frame. */
    	private void initialize() { 
    		
    		
    		
    		JLabel bg = new JLabel(new ImageIcon("Images/Register/BG2.jpg"));
    		this.setContentPane(bg);
    		
    		
    		JLabel label = new JLabel("欢迎注册");
    		label.setBounds(380, 180, 120, 25);
    		label.setFont(new Font(null, Font.BOLD, 18));// 字体设置
    		this.add(label);
    
    		JLabel User = new JLabel("账号");
    		User.setBounds(322, 222, 30, 25);
    		User.setFont(new Font(null, Font.PLAIN, 14));// 字体设置
    		this.add(User);
    
    		JLabel User1 = new JLabel(new ImageIcon("Images/LoginIcon/User.png"));
    		User1.setBounds(350, 220, 30, 30);
    		this.add(User1);
    
    		
    		JLabel Password = new JLabel("密码");
    		Password.setBounds(322, 254, 30, 25);
    		Password.setFont(new Font(null, Font.PLAIN, 14));// 字体设置
    		this.add(Password);
    
    		JLabel Password1 = new JLabel(new ImageIcon("Images/LoginIcon/Lock.png"));
    		Password1.setBounds(352, 250, 30, 30);
    		this.add(Password1);
           
    		VerificationCodeImgUtil V=new VerificationCodeImgUtil();
    		//new VerificationCodeImgUtil().Excute();
    		V.Excute();
    	    CODE=V.code;
    		NAME=V.Name;
    		JLabel Check = new JLabel(new ImageIcon("Images/RadomCheck/"+NAME+".png"));
    		System.out.println("2:"+CODE);
    		Check.setBounds(322, 285, 120, 30);
    		this.add(Check);
    		
            
    		
    		
    		JTextField Check2 = new JTextField();
    		Check2.setBounds(444, 285, 55, 30);
    		this.add(Check2);
    		
    		// 文本框和按钮
    
    		JButton btn = new JButton("注册");
    		btn.setBounds(320, 325, 180, 25);
    		this.add(btn);
    		
    
    		JTextField User2 = new JTextField();
    		User2.setBounds(380, 222, 120, 25);
    		this.add(User2);
    
    		JPasswordField Password2 = new JPasswordField();
    		Password2.setBounds(380, 254, 120, 25);
    		this.add(Password2);
    		
    		JPanel panel = new JPanel(null);
    		panel.setBounds(290, 170, 245, 200);
    		panel.setBackground(Color.WHITE);
    		panel.setBorder(BorderFactory.createLineBorder(Color.gray));
    		this.add(panel);
    		
    		
    		JButton return1=new JButton("返回");
    		return1.setBounds(10, 10, 60, 25);
    		this.add(return1);
    		
    
    
    		
    		
    		return1.addActionListener(new ActionListener(){ 
    
    			@Override
    			public void actionPerformed(ActionEvent e) { 
    				// TODO Auto-generated method stub
    				dispose();
    				new Login();
    				
    			}
    			
    		});
    		//事件处理
    		
    		
    		JLabel Mention=new JLabel("");
    		Mention.setBounds(350, 100, 120, 25);
    		Mention.setForeground(Color.RED);
    		Mention.setFont(new Font(null,Font.BOLD,17));
    		this.add(Mention);
    		
    		
    		JLabel Readme=new JLabel("注册须知 ");
    		Readme.setBounds(620,200 , 120, 25);
    		Readme.setForeground(Color.RED);
    		this.add(Readme);
    		
    		JLabel Readme1=new JLabel(
    				 "1.账号长度为5位，若纯数字"
    				);
    		Readme1.setBounds(580,230 , 160, 25);
    		Readme1.setForeground(Color.RED);
    		this.add(Readme1);
    		
    		
    		JLabel Readme2=new JLabel(
    				"需要大于00100"
    				);
    		Readme2.setBounds(580,260 , 160, 25);
    		Readme2.setForeground(Color.RED);
    		this.add(Readme2);
    		
    		JLabel Readme3=new JLabel(
    				"2.密码需要在10位以内"
    				);
    		Readme3.setBounds(580,290 , 160, 25);
    		Readme3.setForeground(Color.RED);
    		this.add(Readme3);
    		
    		
    		btn.addActionListener(new ActionListener(){ 
    
    			@Override
    			public void actionPerformed(ActionEvent e) { 
    				// TODO Auto-generated method stub
    				//new VerificationCodeImgUtil().Excute();
    				 // NAME=new VerificationCodeImgUtil().Name;
    				//Check.setIcon(new ImageIcon("Images/RadomCheck/"+NAME+".png") );
    				System.out.print("Y");
    			  
    				
    				//Check 密码、账号规范和验证码匹配
    				String RadomCheck=Check2.getText();
    				String Password=Password2.getText();
    				String UserName=User2.getText();
    				//String CODE=new VerificationCodeImgUtil().getCode();
    			
    				System.out.println(CODE+"　"+RadomCheck);
    				
    				if(RadomCheck.equals(CODE)){ 
    					//
    				   if(Password.length()>=10||UserName.length()!=5){ 
    					   Mention.setText("注意注册规范！");
    					   VerificationCodeImgUtil V=new VerificationCodeImgUtil();
    						//new VerificationCodeImgUtil().Excute();
    						V.Excute();
    					    CODE=V.code;
    						NAME=V.Name;
    						Check.setIcon(new ImageIcon("Images/RadomCheck/"+NAME+".png") );
    					   
    					   
    				   }else{ 
    					   if(new Data.Login().Checkexist(UserName)){ 
    						   Mention.setText("改用户名已注册！");
    						   VerificationCodeImgUtil V=new VerificationCodeImgUtil();
    							//new VerificationCodeImgUtil().Excute();
    							V.Excute();
    						    CODE=V.code;
    							NAME=V.Name;
    							Check.setIcon(new ImageIcon("Images/RadomCheck/"+NAME+".png") );
    					   }else{ 
    						   SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    						  String time= df.format(new Date());
    						   
    						   new Data.Login().InsertNewUser(UserName, Password,time);
    						   Mention.setText("注册成功！");
    						   try { 
    								
    								Thread.sleep(2000);
    								
    							} catch (InterruptedException e1) { 
    								// TODO Auto-generated catch block
    								e1.printStackTrace();
    							}
    						   Mention.setText("");
    					   }
    					   
    				   }
    					
    					
    // dispose();
    // new Login();
    				}else{ //延时？？
    					Mention.setText("验证码错误！");
    					 VerificationCodeImgUtil V=new VerificationCodeImgUtil();
    						//new VerificationCodeImgUtil().Excute();
    						V.Excute();
    					    CODE=V.code;
    						NAME=V.Name;
    						Check.setIcon(new ImageIcon("Images/RadomCheck/"+NAME+".png") );
    					try { 
    						
    						Thread.sleep(2000);
    						
    					} catch (InterruptedException e1) { 
    						// TODO Auto-generated catch block
    						e1.printStackTrace();
    					}
    					
    				}
    
    			}
    			
    		});
    
    	}
    
    }

效果展示：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0NjU0OTc0_size_16_color_FFFFFF_t_70_pic_center 1]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0NjU0OTc0_size_16_color_FFFFFF_t_70_pic_center]: https://img-blog.csdnimg.cn/20200628190255656.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0NjU0OTc0,size_16,color_FFFFFF,t_70#pic_center
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0NjU0OTc0_size_16_color_FFFFFF_t_70_pic_center 1]: https://img-blog.csdnimg.cn/2020062819040898.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQ0NjU0OTc0,size_16,color_FFFFFF,t_70#pic_center