同步

exp11/Account.java

@@ -3,10 +3,16 @@ package exp11;
 public class Account {
     private String username;
     private String password;
+    private boolean lock;
 
-    public Account(String username, String password) {
+    public Account(String username, String password, String lock) {
         this.username = username;
         this.password = password;
+        if(lock.equals("true")){
+            this.lock = true;
+        }else {
+            this.lock = false;
+        }
     }
 
     String getUserName() {
@@ -17,7 +23,15 @@ public class Account {
         return this.password;
     }
 
+    boolean isLock() {
+        return lock;
+    }
+
+    void lock() {
+        this.lock = true;
+    }
+
     public String toString() {
-        return this.username +"," +this.password;
+        return this.username +"," +this.password +"," +this.lock;
     }
 }

exp11/AccountDemo.java

@@ -1,18 +1,10 @@
 package exp11;
 
-import java.awt.*;
-import java.awt.event.MouseAdapter;
-import java.awt.event.MouseEvent;
-
-import javax.swing.*;
+import javax.swing.JFrame;
 
 public class AccountDemo {
     public static void main(String[] args) {
-        JFrame register = LoginFrame.creatLonginFrame();
-
-        register.setVisible(true);
+        JFrame loginFrame = LoginFrame.creatLonginFrame();
+        loginFrame.setVisible(true);
     }
-
-    
-    
 }

exp11/AccountManager.java

@@ -8,7 +8,8 @@ import java.io.IOException;
 import java.util.ArrayList;
 
 public class AccountManager {
-    private String userinfoPath = "userinfo.txt";
+    private String userinfoPath = "D:\\MyProjects\\CoreJava\\exp11\\userinfo.text";
+    private int faildCount=0;
     
     private ArrayList<Account> getAccounts() {
         File userinfo = new File(userinfoPath);
@@ -18,7 +19,7 @@ public class AccountManager {
             String line;
             while ((line=reader.readLine()) != null) {
                 String[] strs = line.split(",");
-                Account account = new Account(strs[0], strs[1]);
+                Account account = new Account(strs[0], strs[1], strs[2]);
                 accounts.add(account);
             }
             reader.close();
@@ -29,22 +30,29 @@ public class AccountManager {
         return accounts;
     }
 
-    Account getAccount(String username) {
-        Account account = null;
+    private Account getAccount(String username) {
         ArrayList<Account> accounts = getAccounts();
-        for (Account a : accounts) {
-            if(a.getUserName() == username) {
-                account = a;
+        for (Account account : accounts) {
+            if(account.getUserName().equals(username)) {
+                return account;
             }
         }
 
-        return account;
+        return null;
+    }
+
+    int getFaildCount(){
+        return this.faildCount;
+    }
+
+    void resetFaildCount() {
+        this.faildCount=0;
     }
 
     public boolean userIsExist(String username) {
         ArrayList<Account> accounts = getAccounts();
         for (Account account : accounts) {
-            if (username == account.getUserName()){
+            if (username.equals(account.getUserName())){
                 return true;
             }
         }
@@ -54,7 +62,6 @@ public class AccountManager {
 
     public void addUser(Account account) {
         if (userIsExist(account.getUserName())) {
-            System.out.println("用户已存在!");
         }else {
             File userinfo = new File(userinfoPath);
             try{
@@ -69,21 +76,28 @@ public class AccountManager {
     }
 
     boolean usernameVerify(String username) {
-        if(username.matches("a-zA-Z")){
+        if(username.matches("^[a-zA-Z][a-zA-Z1-9]*$")){
             return true;
         }else {
-            System.out.println("用户名不合法");
             return false;
         }
     }
 
-    boolean accountVerify(String username, String password) {
+    int accountVerify(String username, String password) {
         Account account = getAccount(username);
-        if ((account.getUserName()==username) && (account.getPassword()==password)){
-            return true;
+        System.out.println(account.toString());
+        if(account.isLock()){
+            return -1;
+        }else if ((username.equals(account.getUserName())) && (password.equals(account.getPassword()))){
+            return 1;
+        }else {
+            this.faildCount++;
+            if(faildCount >= 3){
+                account.lock();
+            }
         }
 
-        return false;
+        return 0;
     }
 
 

exp11/LoginFrame.java

@@ -1,18 +1,59 @@
 package exp11;
 
-import java.awt.event.*;
+import java.awt.*;
+import java.time.LocalDateTime;
 import javax.swing.*;
+import java.awt.event.*;
 
 public class LoginFrame {
+    
     static JFrame creatLonginFrame() {
-        JFrame f = Tools.creatDefaultJFrame("登录");
+        AccountManager am = new AccountManager();
+
+        JFrame f = new JFrame("登录");
+        f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+        f.setSize(400, 300);
+        f.setLayout(null);
+        f.setLocationRelativeTo(f);
+        f.setAlwaysOnTop(true);
+        f.setResizable(false);
+
+       
+        
+        JLabel accountJLabel = new JLabel("账号");
+        accountJLabel.setBounds(50, 50, 50, 20);
+        JTextField usernameTextField = new JTextField();
+        usernameTextField.setBounds(100, 50, 200, 20);
+
+        JLabel passwordJLabel = new JLabel("密码");
+        passwordJLabel.setBounds(50, 100, 50, 20);
+        JPasswordField passwordField = new JPasswordField();
+        passwordField.setBounds(100, 100, 200, 20);
 
         JButton loginJButton = new JButton("登录");
         loginJButton.setBounds(240, 200, 60, 30);
         loginJButton.addMouseListener(new MouseAdapter() {
             @Override
             public void mouseClicked(MouseEvent e){
-                System.out.println("点击[登录]");
+                String username = usernameTextField.getText();
+                String password = new String(passwordField.getPassword());
+
+                if (!am.userIsExist(username)) {
+                    showDialog(f, "用户不存在!");
+                }else {
+                    int verify = am.accountVerify(username, password);
+                    if(am.getFaildCount() >= 3){
+                        String text = "用户" +username +"已被锁定,请与管理联系!";
+                        showDialog(f, text);
+                        //am.resetFaildCount();
+                    }else if (verify==1) {
+                        showDialog(f, "登陆成功");
+                        am.resetFaildCount();
+                    }else if (verify==0){
+                        String text = "密码错误,你还有" +(3-am.getFaildCount()) +"次机会";
+                        showDialog(f, text);
+                    }
+                }
             }
         });
 
@@ -21,14 +62,34 @@ public class LoginFrame {
         registerButton.addMouseListener(new MouseAdapter() {
             @Override
             public void mouseClicked(MouseEvent e){
-
+                JFrame registerFrame = RegisterFrame.creatRegisterFrame();
+                registerFrame.setVisible(true);
+                f.dispose();
             }
         });
 
+        f.add(accountJLabel);
+        f.add(usernameTextField);
+        f.add(passwordJLabel);
+        f.add(passwordField);
         f.add(loginJButton);
         f.add(registerButton);
 
         return f;
     }
     
+
+    static void showDialog(JFrame f, String text) {
+        JDialog dialog = new JDialog(f, "提示");
+        dialog.setSize(200, 150);
+        dialog.setLocationRelativeTo(f);
+        dialog.setDefaultCloseOperation(1);
+        dialog.setLayout(new FlowLayout());
+
+        JLabel textLabel = new JLabel(text);
+        
+        dialog.add(textLabel);
+
+        dialog.setVisible(true);
+    }
 }

exp11/RegisterFrame.java

@@ -1,25 +1,95 @@
 package exp11;
 
-import java.awt.event.MouseAdapter;
-import java.awt.event.MouseEvent;
-
-import javax.swing.JButton;
-import javax.swing.JFrame;
+import java.awt.*;
+import java.time.LocalDateTime;
+import javax.swing.*;
+import java.awt.event.*;
 
 public class RegisterFrame {
+
     static JFrame creatRegisterFrame() {
-        JFrame f = Tools.creatDefaultJFrame("注册");
+        AccountManager am = new AccountManager();
+
+        JFrame f = new JFrame("注册");
+        f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
+        f.setSize(400, 300);
+        f.setLayout(null);
+        f.setLocationRelativeTo(f);
+        f.setAlwaysOnTop(true);
+        f.setResizable(false);
+
+       
+        
+        JLabel accountJLabel = new JLabel("账号");
+        accountJLabel.setBounds(50, 50, 50, 20);
+        JTextField usernameTextField = new JTextField();
+        usernameTextField.setBounds(100, 50, 200, 20);
+
+        JLabel passwordJLabel = new JLabel("密码");
+        passwordJLabel.setBounds(50, 100, 50, 20);
+        JPasswordField passwordField = new JPasswordField();
+        passwordField.setBounds(100, 100, 200, 20);
+
+        JLabel confirmPasswordJLabel = new JLabel("确认密码");
+        confirmPasswordJLabel.setBounds(50, 150, 50, 20);
+        JPasswordField confirmPasswordField = new JPasswordField();
+        confirmPasswordField.setBounds(100, 150, 200, 20);
+
+        JButton loginJButton = new JButton("登录");
+        loginJButton.setBounds(90, 200, 60, 30);
+        loginJButton.addMouseListener(new MouseAdapter() {
+            @Override
+            public void mouseClicked(MouseEvent e){
+                JFrame loginFrame = LoginFrame.creatLonginFrame();
+                loginFrame.setVisible(true);
+                f.dispose();
+            }
+        });
 
         JButton registerButton = new JButton("注册");
-        registerButton.setBounds(220, 200, 60, 30);
+        registerButton.setBounds(240, 200, 60, 30);
         registerButton.addMouseListener(new MouseAdapter() {
             @Override
             public void mouseClicked(MouseEvent e){
+                String username = usernameTextField.getText();
+                String password = new String(passwordField.getPassword());
+                Account account = new Account(username, password, "false");
 
+                if (am.userIsExist(username)){
+                    showDialog(f, "用户已存在!");
+                }else {
+                    am.addUser(account);
+                    String text = username +"在" +LocalDateTime.now().toString() +"注册成功";
+                    showDialog(f, text);
+                }
             }
         });
 
+        f.add(accountJLabel);
+        f.add(usernameTextField);
+        f.add(passwordJLabel);
+        f.add(passwordField);
+        f.add(confirmPasswordJLabel);
+        f.add(confirmPasswordField);
+
+        f.add(loginJButton);
+        f.add(registerButton);
+
         return f;
     }
     
+
+    static void showDialog(JFrame f, String text) {
+        JDialog dialog = new JDialog(f, "提示");
+        dialog.setSize(200, 150);
+        dialog.setLocationRelativeTo(f);
+        dialog.setDefaultCloseOperation(1);
+        dialog.setLayout(new FlowLayout());
+
+        JLabel textLabel = new JLabel(text);
+        
+        dialog.add(textLabel);
+
+        dialog.setVisible(true);
+    }
 }

exp11/Tools.java

@@ -1,36 +0,0 @@
-package exp11;
-
-import javax.swing.*;
-
-public class Tools {
-    private String userInfoPath = "userinfo.txt";
-
-    public static JFrame creatDefaultJFrame(String title){
-        JFrame f = new JFrame(title);
-        f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
-        f.setSize(400, 300);
-        f.setLayout(null);
-        f.setLocationRelativeTo(f);
-        f.setAlwaysOnTop(true);
-        f.setResizable(false);
-        
-        JLabel accountJLabel = new JLabel("账号");
-        accountJLabel.setBounds(50, 50, 50, 20);
-        JTextField accounJTextField = new JTextField();
-        accounJTextField.setBounds(100, 50, 200, 20);
-
-        JLabel passwordJLabel = new JLabel("密码");
-        passwordJLabel.setBounds(50, 100, 50, 20);
-        JPasswordField passwordField = new JPasswordField();
-        passwordField.setBounds(100, 100, 200, 20);
-
-        f.add(accountJLabel);
-        f.add(accounJTextField);
-        f.add(passwordJLabel);
-        f.add(passwordField);
-
-        return f;
-    }
-
-
-}

exp11/userinfo.text

@@ -0,0 +1 @@
+stu1,123456,false

test/RegexTest.java

@@ -0,0 +1,16 @@
+package test;
+
+public class RegexTest {
+    public static void main(String[] args) {
+        String regex = "^[a-zA-Z][a-zA-Z1-9]*$";  
+        String testString = "Abc123"; // 测试字符串  
+        
+        boolean matches = testString.matches(regex);  
+        
+        if (matches) {  
+            System.out.println("字符串仅由字母和数字（1-9）组成");  
+        } else {  
+            System.out.println("字符串包含非字母或非数字（1-9）的字符");  
+        }
+    }
+}