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@ -1,37 +0,0 @@
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package exp11;
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public class Account {
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private String username;
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private String password;
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private boolean lock;
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public Account(String username, String password, String lock) {
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this.username = username;
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this.password = password;
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if(lock.equals("true")){
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this.lock = true;
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}else {
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this.lock = false;
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}
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}
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String getUserName() {
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return this.username;
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}
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String getPassword() {
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return this.password;
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}
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boolean isLock() {
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return lock;
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}
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void lock() {
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this.lock = true;
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}
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public String toString() {
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return this.username +"," +this.password +"," +this.lock;
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}
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}
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@ -1,10 +1,7 @@
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package exp11;
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import javax.swing.JFrame;
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import javax.swing.*;
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public class AccountDemo {
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public static void main(String[] args) {
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JFrame loginFrame = LoginFrame.creatLonginFrame();
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loginFrame.setVisible(true);
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}
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JFrame rejister = new JFrame();
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}
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@ -1,104 +0,0 @@
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package exp11;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.FileReader;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.util.ArrayList;
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public class AccountManager {
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private String userinfoPath = "D:\\MyProjects\\CoreJava\\exp11\\userinfo.text";
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private int faildCount=0;
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private ArrayList<Account> getAccounts() {
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File userinfo = new File(userinfoPath);
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ArrayList<Account> accounts = new ArrayList<>();
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try{
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BufferedReader reader = new BufferedReader(new FileReader(userinfo));
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String line;
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while ((line=reader.readLine()) != null) {
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String[] strs = line.split(",");
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Account account = new Account(strs[0], strs[1], strs[2]);
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accounts.add(account);
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}
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reader.close();
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}catch(IOException e) {
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e.printStackTrace();
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}
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return accounts;
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}
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private Account getAccount(String username) {
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ArrayList<Account> accounts = getAccounts();
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for (Account account : accounts) {
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if(account.getUserName().equals(username)) {
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return account;
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}
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}
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return null;
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}
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int getFaildCount(){
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return this.faildCount;
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}
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void resetFaildCount() {
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this.faildCount=0;
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}
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public boolean userIsExist(String username) {
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ArrayList<Account> accounts = getAccounts();
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for (Account account : accounts) {
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if (username.equals(account.getUserName())){
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return true;
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}
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}
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return false;
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}
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public void addUser(Account account) {
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if (userIsExist(account.getUserName())) {
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}else {
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File userinfo = new File(userinfoPath);
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try{
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FileWriter writer = new FileWriter(userinfo, true);
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writer.write(account.toString());
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writer.close();
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}catch(IOException e) {
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e.printStackTrace();
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}
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}
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}
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boolean usernameVerify(String username) {
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if(username.matches("^[a-zA-Z][a-zA-Z1-9]*$")){
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return true;
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}else {
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return false;
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}
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}
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int accountVerify(String username, String password) {
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Account account = getAccount(username);
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System.out.println(account.toString());
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if(account.isLock()){
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return -1;
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}else if ((username.equals(account.getUserName())) && (password.equals(account.getPassword()))){
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return 1;
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}else {
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this.faildCount++;
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if(faildCount >= 3){
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account.lock();
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}
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}
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return 0;
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}
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}
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@ -1,94 +0,0 @@
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package exp11;
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import java.awt.*;
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import javax.swing.*;
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import java.awt.event.*;
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public class LoginFrame {
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static JFrame creatLonginFrame() {
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AccountManager am = new AccountManager();
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JFrame f = new JFrame("登录");
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f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
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f.setSize(400, 300);
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f.setLayout(null);
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f.setLocationRelativeTo(f);
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f.setAlwaysOnTop(true);
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f.setResizable(false);
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JLabel accountJLabel = new JLabel("账号");
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accountJLabel.setBounds(50, 50, 50, 20);
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JTextField usernameTextField = new JTextField();
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usernameTextField.setBounds(100, 50, 200, 20);
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JLabel passwordJLabel = new JLabel("密码");
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passwordJLabel.setBounds(50, 100, 50, 20);
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JPasswordField passwordField = new JPasswordField();
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passwordField.setBounds(100, 100, 200, 20);
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JButton loginJButton = new JButton("登录");
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loginJButton.setBounds(240, 200, 60, 30);
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loginJButton.addMouseListener(new MouseAdapter() {
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@Override
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public void mouseClicked(MouseEvent e){
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String username = usernameTextField.getText();
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String password = new String(passwordField.getPassword());
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if (!am.userIsExist(username)) {
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showDialog(f, "用户不存在!");
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}else {
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int verify = am.accountVerify(username, password);
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if(am.getFaildCount() >= 3){
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String text = "用户" +username +"已被锁定,请与管理联系!";
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showDialog(f, text);
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//am.resetFaildCount();
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}else if (verify==1) {
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showDialog(f, "登陆成功");
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am.resetFaildCount();
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}else if (verify==0){
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String text = "密码错误,你还有" +(3-am.getFaildCount()) +"次机会";
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showDialog(f, text);
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}
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}
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}
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});
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JButton registerButton = new JButton("注册");
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registerButton.setBounds(90, 200, 60, 30);
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registerButton.addMouseListener(new MouseAdapter() {
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@Override
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public void mouseClicked(MouseEvent e){
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JFrame registerFrame = RegisterFrame.creatRegisterFrame();
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registerFrame.setVisible(true);
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f.dispose();
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}
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});
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f.add(accountJLabel);
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f.add(usernameTextField);
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f.add(passwordJLabel);
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f.add(passwordField);
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f.add(loginJButton);
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f.add(registerButton);
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return f;
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}
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static void showDialog(JFrame f, String text) {
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JDialog dialog = new JDialog(f, "提示");
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dialog.setSize(200, 150);
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dialog.setLocationRelativeTo(f);
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dialog.setDefaultCloseOperation(1);
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dialog.setLayout(new FlowLayout());
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JLabel textLabel = new JLabel(text);
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dialog.add(textLabel);
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dialog.setVisible(true);
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}
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}
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@ -1,95 +0,0 @@
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package exp11;
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import java.awt.*;
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import java.time.LocalDateTime;
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import javax.swing.*;
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import java.awt.event.*;
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public class RegisterFrame {
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static JFrame creatRegisterFrame() {
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AccountManager am = new AccountManager();
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JFrame f = new JFrame("注册");
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f.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
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f.setSize(400, 300);
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f.setLayout(null);
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f.setLocationRelativeTo(f);
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f.setAlwaysOnTop(true);
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f.setResizable(false);
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JLabel accountJLabel = new JLabel("账号");
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accountJLabel.setBounds(50, 50, 50, 20);
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JTextField usernameTextField = new JTextField();
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usernameTextField.setBounds(100, 50, 200, 20);
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JLabel passwordJLabel = new JLabel("密码");
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passwordJLabel.setBounds(50, 100, 50, 20);
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JPasswordField passwordField = new JPasswordField();
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passwordField.setBounds(100, 100, 200, 20);
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JLabel confirmPasswordJLabel = new JLabel("确认密码");
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confirmPasswordJLabel.setBounds(50, 150, 50, 20);
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JPasswordField confirmPasswordField = new JPasswordField();
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confirmPasswordField.setBounds(100, 150, 200, 20);
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JButton loginJButton = new JButton("登录");
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loginJButton.setBounds(90, 200, 60, 30);
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loginJButton.addMouseListener(new MouseAdapter() {
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@Override
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public void mouseClicked(MouseEvent e){
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JFrame loginFrame = LoginFrame.creatLonginFrame();
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loginFrame.setVisible(true);
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f.dispose();
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}
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});
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JButton registerButton = new JButton("注册");
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registerButton.setBounds(240, 200, 60, 30);
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registerButton.addMouseListener(new MouseAdapter() {
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@Override
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public void mouseClicked(MouseEvent e){
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String username = usernameTextField.getText();
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String password = new String(passwordField.getPassword());
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Account account = new Account(username, password, "false");
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if (am.userIsExist(username)){
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showDialog(f, "用户已存在!");
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}else {
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am.addUser(account);
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String text = username +"在" +LocalDateTime.now().toString() +"注册成功";
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showDialog(f, text);
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}
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}
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});
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f.add(accountJLabel);
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f.add(usernameTextField);
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f.add(passwordJLabel);
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f.add(passwordField);
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f.add(confirmPasswordJLabel);
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f.add(confirmPasswordField);
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f.add(loginJButton);
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f.add(registerButton);
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return f;
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}
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static void showDialog(JFrame f, String text) {
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JDialog dialog = new JDialog(f, "提示");
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dialog.setSize(200, 150);
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dialog.setLocationRelativeTo(f);
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dialog.setDefaultCloseOperation(1);
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dialog.setLayout(new FlowLayout());
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JLabel textLabel = new JLabel(text);
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dialog.add(textLabel);
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dialog.setVisible(true);
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}
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}
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@ -1 +0,0 @@
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stu1,123456,false
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@ -1,21 +0,0 @@
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package exp12;
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import exp12.TicketingSystem.TicketingSystem;
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public class Person extends Thread{
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@Override
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public void run() {
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while (true) {
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try {
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Thread.sleep(3);
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} catch (InterruptedException e) {
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e.printStackTrace();
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}
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if ( !TicketingSystem.buy(Thread.currentThread().getName())) {
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break;
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}
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}
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}
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}
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@ -1,29 +0,0 @@
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package exp12.TicketingSystem;
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import java.util.HashMap;
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import java.util.Map;
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public class TicketingSystem {
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private int tickets = 200;
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private Map<String, Integer> map = new HashMap<>();
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final int MAX_PERSON = 5;
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final int MAX_TICKET_PER_PERSON =10;
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public static void main(String[] args) {
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}
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public synchronized boolean buy(String user) {
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if(!map.containsValue(user) && map.size()<MAX_PERSON) {
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map.put(user, 1);
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this.tickets--;
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}else if(map.get(user) < MAX_PERSON) {
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}
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return false;
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}
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}
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@ -1,16 +0,0 @@
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package test;
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public class RegexTest {
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public static void main(String[] args) {
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String regex = "^[a-zA-Z][a-zA-Z1-9]*$";
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String testString = "Abc123"; // 测试字符串
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boolean matches = testString.matches(regex);
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if (matches) {
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System.out.println("字符串仅由字母和数字（1-9）组成");
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} else {
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System.out.println("字符串包含非字母或非数字（1-9）的字符");
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}
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}
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}
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