创建登入界面（有验证码）

柔光的暖阳◎ 2023-06-04 15:52 98阅读 0赞

创建登入界面（有验证码）

//信1805-1王正帅20183544  
package textpass;  
import java.util.Random;  
import java.awt.\*;  
import java.awt.event.\*;  
import javax.swing.\*;

public class LognIn extends JFrame implements ActionListener \{  
private JLabel jl2 = new JLabel("");  
private JLabel jlArray1=new JLabel("验证码");  
private String code=new String(randomNumber());  
private JButton jbA =new JButton(code);  
private JButton jbD=new JButton("登陆");  
private JButton jbZ=new JButton("注册");  
private JButton jbM=new JButton("找密码");  
private JLabel jlY=new JLabel("用户名");  
private JLabel jlMB=new JLabel("密 码");  
private Font f1=new Font("斜体",Font.BOLD,13);  
private JTextField jtxtName =new JTextField();  
private JTextField jtxt =new JTextField();//++  
private JButton jb1 =new JButton("手机号或邮箱");  
private JPasswordField jtxtPassword= new JPasswordField();  
private JPanel jp=new JPanel();//面板  
private int f2=0;  
public void name() \{  
jlY.setBounds(30, 10, 80, 26);  
jp.add(jlY);  
\}  
public void PasswordB() \{  
jlMB.setBounds(30, 60, 80, 26);  
jp.add(jlMB);

\}  
public void Logn() \{  
jbD.setBounds(50, 180, 60,26);  
jp.add(jbD);  
jbD.addActionListener(new ActionListener() \{  
public void actionPerformed(ActionEvent e) \{  
int f=0;  
if(jtxtName.getText().length()>=3&&jtxtName.getText().length()<=11) \{//登入名大于3位小于11位。  
f++;  
\}  
else if(jtxtName.getText().length()==0) \{  
JOptionPane.showMessageDialog(null,"用户名为空");  
\}  
else\{  
JOptionPane.showMessageDialog(null,"用户名输入有误");  
\}  
if(String.valueOf(jtxtPassword.getPassword()).length()>=3  
&&String.valueOf(jtxtPassword.getPassword()).length()<=12) \{//登密码大于3位小于12位。获取文本框的内容  
f++;  
\}  
else if(String.valueOf(jtxtPassword.getPassword()).length()==0) \{  
JOptionPane.showMessageDialog(null,"密码为空");  
\}  
else\{  
JOptionPane.showMessageDialog(null,"密码输入有误");  
\}  
if(String.valueOf(jtxt.getText()).equals(code)) \{  
  
f++;  
\}  
  
else if(String.valueOf(jtxt.getText()).length()==0) \{  
JOptionPane.showMessageDialog(null,"验证码为空！");  
\}  
else\{  
JOptionPane.showMessageDialog(null,"验证码输入有误！");  
\}  
if(f==3) \{  
JOptionPane.showMessageDialog(null,"登入成功！");  
jl2.setText("成功");  
\}  
else \{  
jl2.setText("失败");  
jl2.setFont(f1);  
jl2.setForeground(Color.WHITE);//设置文字的颜色  
\}  
  
\}  
  
\});  
\}  
public void Registration() \{  
jbZ.setBounds(120, 180, 60,26);  
jp.add(jbZ);  
//监听  
jbZ.addActionListener(new ActionListener() \{  
public void actionPerformed(ActionEvent e) \{  
if(e.getSource()==jbZ)\{ //按注册键  
jtxtName.requestFocus();  
LognIn l2=new LognIn();  
l2.setTitle("请注册");  
l2.RegistrationE();  
if(e.getSource()==jbZ) \{  
if(jtxtName.getText().equals("17734103685")&&String.valueOf(jtxtPassword.getPassword()).equals("lxy208751")) \{  
JOptionPane.showMessageDialog(null,"注册成功");  
\}  
\}  
\}  
  
\}  
  
\});  
\}  
public void Password() \{  
jbM.setBounds(190, 180, 80,26);  
jp.add(jbM);  
jbM.addActionListener(new ActionListener() \{  
public void actionPerformed(ActionEvent e) \{  
  
if(e.getSource()==jbM)\{ //按找密码键  
f2++;  
//Empty();  
jtxtName.requestFocus();  
LognIn l3=new LognIn();  
l3.setTitle("找密码");  
l3.PasswordE();  
if(e.getSource()==jbM&&jtxtName.getText().equals("17734103685")) \{  
JOptionPane.showMessageDialog(null,"密码是：lxy208751");  
  
\}  
\}  
  
  
\}  
  
\});  
\}  
public void RegistrationE() \{  
jbD.setVisible(false);  
jbM.setVisible(false);  
jbZ.setBounds(80, 150, 100,26);  
this.setBounds(1000, 200, 300, 250);//设置界面出现在屏幕上的位置  
\}  
public void PasswordE() \{  
jbD.setVisible(false);  
jbZ.setVisible(false);  
jtxtPassword.setVisible(false);  
jlMB.setVisible(false);  
jlArray1.setBounds(30, 90, 80,26);  
jtxt.setBounds(80,90,80,30);  
jbA.setBounds(180, 90, 100, 26);  
this.setBounds(600, 200, 300, 250);//设置界面出现在屏幕上的位置  
\}  
public LognIn()\{  
jp.setLayout(null); //满换行  
jp.setBackground(Color.ORANGE);  
randonA();  
jlArray1.setBounds(30, 110, 80, 26);//设置文字30据左，120上下  
jp.add(jlArray1);//显示  
jb1.setBounds(80,10,130,30);  
jp.add(jb1);  
jb1.addActionListener(this);  
jb1.setBackground(Color.WHITE);  
PasswordB();name();  
Logn();Registration();Password();  
jtxtName.setBounds(80,10,180,30);//设置文本框80左右10上下(位置)180长30宽  
jp.add(jtxtName);  
jtxtName.addActionListener(this);  
jtxt.setBounds(80,110,80,30);  
jp.add(jtxt);  
jtxt.addActionListener(this);  
jtxtPassword.setBounds(80,60,180,30);  
jp.add(jtxtPassword);  
jtxtPassword.setEchoChar('\*');  
jtxtPassword.addActionListener(this);  
jl2.setBounds(10, 180, 300, 30);  
jp.add(jl2);  
this.add(jp);  
this.setDefaultCloseOperation(JFrame.HIDE\_ON\_CLOSE);  
this.setResizable(false);  
this.setBounds(800, 200, 300, 250);//设置界面出现在屏幕上的位置  
this.setVisible(true);  
  
\}  
  
public String randomNumber() \{//生成验证码  
String code=new String("");  
for(int i=1;i<=6;i++)\{  
Random random=new Random();  
int character=random.nextInt(26)+97;//随机产生97-123之间的数  
  
code=code+(char)character;//将产生的数转化为char类型为小写字母  
\}  
return code;  
\}  
public void Empty() \{  
jl2.setText("");  
jlArray1.setText("");  
jtxt.setText("");  
jtxtName.setText("");  
jtxtPassword.setText("");  
\}  
public void randonA() \{  
System.out.println(code);  
jbA.setBounds(180, 110, 100, 26);//设置文字30据左，120上下  
jbA.addActionListener(this);  
Font f=new Font("斜体",Font.BOLD,13);  
jbA.setFont(f);  
jbA.setBackground(Color.orange);  
jp.add(jbA);//显示  
\}  
  
  
public void actionPerformed(ActionEvent e)\{  
  
if(e.getSource()==jtxtName)\{  
jtxtPassword.requestFocus();  
\}  
else if(e.getSource()==jbA) \{  
code=randomNumber();  
jbA.setVisible(false);  
jbA =new JButton(code);  
randonA();  
\}  
  
else if(e.getSource()==jb1) \{  
jb1.setVisible(false);  
\}  
  
\}  
public static void main(String\[\] args) \{  
LognIn l1=new LognIn();  
l1.setTitle("请登陆");  
  
\}  
\}

运行测试:

![1543695-20190921191513341-1163088869.png][]

![1543695-20190921191608467-1667408034.png][]

![1543695-20190921191703721-732476388.png][]

![1543695-20190921191751850-1544798648.png][]

转载于:https://www.cnblogs.com/20183544-wangzhengshuai/p/11537689.html

[1543695-20190921191513341-1163088869.png]: /images/20230601/ab9259ec0528440e853dc65d09e555bf.png
[1543695-20190921191608467-1667408034.png]: /images/20230601/b76847f0a8c84e9ab10a669269511b51.png
[1543695-20190921191703721-732476388.png]: /images/20230601/9fdf47575ede44ce8b98f53b67e3f1b5.png
[1543695-20190921191751850-1544798648.png]: /images/20230601/ffbcca2e6efd43de9c5a9260da676235.png