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MathSystem2
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hnu202326010114 2 months ago
parent a47385a1b6 de425c0bf8
commit 9ef97d3661
14 changed files with 1753 additions and 130 deletions
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164
src/main/java/com/example/mathsystemtogether/ChangePasswordController.java
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@ -0,0 +1,164 @@
package com.example.mathsystemtogether;
import javafx.fxml.FXML;
import javafx.scene.control.*;
import javafx.stage.Stage;
import java.io.*;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.List;
import java.util.regex.Pattern;
public class ChangePasswordController {
@FXML
private TextField usernameField;
@FXML
private PasswordField oldPasswordField;
@FXML
private PasswordField newPasswordField;
@FXML
private PasswordField confirmNewPasswordField;
@FXML
private Button changePasswordButton;
@FXML
private Button cancelButton;
@FXML
private Label statusLabel;
private String currentUser;
private ExamController examController;
private static final String USER_DATA_FILE = "user_data.txt";
// 密码强度验证正则表达式
private static final String PASSWORD_REGEX = "^(?=.*[a-z])(?=.*[A-Z])(?=.*\\d).+$";
private static final Pattern PASSWORD_PATTERN = Pattern.compile(PASSWORD_REGEX);
public void setCurrentUser(String username) {
this.currentUser = username;
usernameField.setText(username);
}
public void setExamController(ExamController examController) {
this.examController = examController;
}
@FXML
private void handleChangePassword() {
String oldPassword = oldPasswordField.getText();
String newPassword = newPasswordField.getText();
String confirmNewPassword = confirmNewPasswordField.getText();
if (oldPassword.isEmpty() || newPassword.isEmpty() || confirmNewPassword.isEmpty()) {
showStatus("请填写所有字段", true);
return;
}
if (!examController.checkUserPassword(currentUser, oldPassword)) {
showStatus("原密码错误", true);
return;
}
if (newPassword.length() < 6) {
showStatus("新密码至少需要6个字符", true);
return;
}
if (!isValidPassword(newPassword)) {
showStatus("新密码必须包含大小写字母和数字", true);
return;
}
if (!newPassword.equals(confirmNewPassword)) {
showStatus("两次输入的新密码不一致", true);
return;
}
if (oldPassword.equals(newPassword)) {
showStatus("新密码不能与原密码相同", true);
return;
}
if (updatePassword(currentUser, newPassword)) {
showStatus("密码修改成功！", false);
// 延迟关闭窗口
new java.util.Timer().schedule(
new java.util.TimerTask() {
@Override
public void run() {
javafx.application.Platform.runLater(() -> {
handleClose();
});
}
},
1500
);
} else {
showStatus("密码修改失败，请重试", true);
}
}
@FXML
private void handleCancel() {
handleClose();
}
private void handleClose() {
Stage stage = (Stage) cancelButton.getScene().getWindow();
stage.close();
}
private boolean updatePassword(String username, String newPassword) {
try {
// 读取所有用户数据
List<String> lines = Files.readAllLines(Paths.get(USER_DATA_FILE));
boolean userFound = false;
for (int i = 0; i < lines.size(); i++) {
String[] parts = lines.get(i).split("\\|");
if (parts.length >= 2 && parts[0].equals(username)) {
// 更新密码
parts[1] = newPassword;
lines.set(i, String.join("|", parts));
userFound = true;
break;
}
}
if (userFound) {
// 写回文件
Files.write(Paths.get(USER_DATA_FILE), lines);
// 更新内存中的用户数据
examController.updateUserPassword(username, newPassword);
return true;
}
} catch (IOException e) {
e.printStackTrace();
}
return false;
}
/**
* 验证密码强度
* 密码必须包含至少一个小写字母、一个大写字母和一个数字
*/
private boolean isValidPassword(String password) {
return PASSWORD_PATTERN.matcher(password).matches();
}
private void showStatus(String message, boolean isError) {
statusLabel.setText(message);
if (isError) {
statusLabel.setStyle("-fx-text-fill: #DC143C; -fx-font-weight: bold; -fx-font-size: 14;");
} else {
statusLabel.setStyle("-fx-text-fill: #228B22; -fx-font-weight: bold; -fx-font-size: 14;");
}
}
}

809
src/main/java/com/example/mathsystemtogether/ChoiceQuestionGenerator.java
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@ -54,12 +54,13 @@ public class ChoiceQuestionGenerator {
* 生成小学题目
*/
private Question generatePrimaryQuestion(int questionNumber) {
int a = MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE);
int b = MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE);
// 随机选择运算符号数量（1-3个）
int operatorCount = 1 + random.nextInt(3);
String operation = getRandomOperation("+*-");
String questionText = String.format("%d %s %d = ?", a, operation, b);
int correctAnswer = calculate(a, b, operation);
// 生成复合运算表达式
String[] expression = generateCompoundExpression(operatorCount);
String questionText = expression[0];
int correctAnswer = Integer.parseInt(expression[1]);
// 生成错误选项
List<Integer> options = generateWrongOptions(correctAnswer);
@ -79,11 +80,15 @@ public class ChoiceQuestionGenerator {
* 生成初中题目
*/
private Question generateJuniorQuestion(int questionNumber) {
int a = MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE);
// 随机选择运算符号数量（1-3个）
int operatorCount = 1 + random.nextInt(3);
// 50%概率生成平方或开方题目
// 30%概率生成纯平方/开方题目，70%概率生成包含平方/开方的复合运算题目
if (random.nextDouble() < 0.3) {
// 生成纯平方或开方题目
if (random.nextBoolean()) {
// 平方题目
int a = MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE);
String questionText = String.format("%d² = ?", a);
int correctAnswer = a * a;
List<Integer> options = generateWrongOptions(correctAnswer);
@ -106,6 +111,25 @@ public class ChoiceQuestionGenerator {
options.add(correctAnswer);
Collections.shuffle(options);
return new Question(questionText,
String.valueOf(options.get(0)),
String.valueOf(options.get(1)),
String.valueOf(options.get(2)),
String.valueOf(options.get(3)),
String.valueOf(correctAnswer),
questionNumber);
}
} else {
// 生成包含平方/开方的复合运算表达式（确保包含平方或开方）
String[] expression = generateJuniorCompoundExpressionWithGuarantee(operatorCount);
String questionText = expression[0];
int correctAnswer = Integer.parseInt(expression[1]);
// 生成错误选项
List<Integer> options = generateWrongOptions(correctAnswer);
options.add(correctAnswer);
Collections.shuffle(options);
return new Question(questionText,
String.valueOf(options.get(0)),
String.valueOf(options.get(1)),
@ -120,14 +144,42 @@ public class ChoiceQuestionGenerator {
* 生成高中题目
*/
private Question generateSeniorQuestion(int questionNumber) {
int angle = random.nextInt(360);
// 随机选择运算符号数量（1-3个）
int operatorCount = 1 + random.nextInt(3);
// 30%概率生成纯三角函数题目，70%概率生成包含三角函数的复合运算题目
if (random.nextDouble() < 0.3) {
// 生成纯三角函数题目
int[] commonAngles = {0, 30, 45, 60, 90, 120, 135, 150, 180, 210, 225, 270, 300, 315, 330};
int angle = commonAngles[random.nextInt(commonAngles.length)];
String[] functions = {"sin", "cos", "tan"};
String function = functions[random.nextInt(functions.length)];
String questionText = String.format("%s(%d°) = ?", function, angle);
double result = calculateTrigFunction(function, angle);
int correctAnswer = (int) Math.round(result * 100) / 100; // 保留两位小数
// 生成选项
List<String> options = generateTrigOptions(result);
// 使用格式化后的值作为正确答案，确保与选项一致
String correctAnswer = formatTrigValue(result);
// 随机打乱选项
Collections.shuffle(options);
return new Question(questionText,
options.get(0),
options.get(1),
options.get(2),
options.get(3),
correctAnswer,
questionNumber);
} else {
// 生成包含三角函数的复合运算表达式（确保包含三角函数）
String[] expression = generateSeniorCompoundExpressionWithGuarantee(operatorCount);
String questionText = expression[0];
int correctAnswer = Integer.parseInt(expression[1]);
// 生成错误选项
List<Integer> options = generateWrongOptions(correctAnswer);
options.add(correctAnswer);
Collections.shuffle(options);
@ -140,6 +192,176 @@ public class ChoiceQuestionGenerator {
String.valueOf(correctAnswer),
questionNumber);
}
}
/**
* 生成三角函数题目的选项
*/
private List<String> generateTrigOptions(double correctAnswer) {
List<String> options = new ArrayList<>();
Set<String> usedOptions = new HashSet<>();
// 格式化正确答案，保留适当的小数位数
String formattedCorrectAnswer = formatTrigValue(correctAnswer);
options.add(formattedCorrectAnswer);
usedOptions.add(formattedCorrectAnswer);
// 添加常见三角函数值作为错误选项
String[] commonValues = {"0", "0.5", "0.71", "0.87", "1", "1.73", "-0.5", "-0.71", "-0.87", "-1", "-1.73", "undefined"};
List<String> commonValuesList = new ArrayList<>(Arrays.asList(commonValues));
// 打乱常见值列表
Collections.shuffle(commonValuesList);
// 添加错误选项
int wrongOptionsNeeded = 3;
for (String value : commonValuesList) {
if (wrongOptionsNeeded <= 0) break;
// 确保不添加与正确答案相同的选项
if (!usedOptions.contains(value) && !value.equals(formattedCorrectAnswer)) {
options.add(value);
usedOptions.add(value);
wrongOptionsNeeded--;
}
}
// 如果还需要更多选项，则生成接近正确答案的选项
while (options.size() < 4) {
String wrongOption = generateNearbyValue(correctAnswer, usedOptions);
// 确保新生成的选项不重复且不与正确答案相同
if (!usedOptions.contains(wrongOption) && !wrongOption.equals(formattedCorrectAnswer)) {
options.add(wrongOption);
usedOptions.add(wrongOption);
}
}
return options;
}
/**
* 格式化三角函数值
*/
private String formatTrigValue(double value) {
// 对于特殊值进行精确表示
if (Math.abs(value) < 1e-10) return "0"; // 接近0的值
if (Math.abs(value - 1.0) < 1e-10) return "1";
if (Math.abs(value + 1.0) < 1e-10) return "-1";
if (Math.abs(value - 0.5) < 1e-10) return "0.5";
if (Math.abs(value + 0.5) < 1e-10) return "-0.5";
if (Math.abs(value - Math.sqrt(2)/2) < 1e-10) return "0.71"; // √2/2 ≈ 0.707
if (Math.abs(value + Math.sqrt(2)/2) < 1e-10) return "-0.71";
if (Math.abs(value - Math.sqrt(3)/2) < 1e-10) return "0.87"; // √3/2 ≈ 0.866
if (Math.abs(value + Math.sqrt(3)/2) < 1e-10) return "-0.87";
if (Math.abs(value - Math.sqrt(3)) < 1e-10) return "1.73"; // √3 ≈ 1.732
if (Math.abs(value + Math.sqrt(3)) < 1e-10) return "-1.73";
// 对于tan(90°)等未定义值
if (Double.isInfinite(value) || Double.isNaN(value)) {
return "undefined";
}
// 其他值保留两位小数
return String.format("%.2f", value);
}
/**
* 生成接近正确答案的选项
*/
private String generateNearbyValue(double correctAnswer, Set<String> usedOptions) {
// 对于特殊值直接返回简单值
if (Double.isInfinite(correctAnswer) || Double.isNaN(correctAnswer)) {
return "0";
}
// 生成在正确答案附近的值
double variation = (random.nextDouble() - 0.5) * 2; // -1 到 1 之间的随机数
double wrongAnswer = correctAnswer + variation;
// 格式化生成的值
String formatted = formatTrigValue(wrongAnswer);
// 确保不会生成与已使用选项相同的值，最多尝试10次
int attempts = 0;
while (usedOptions.contains(formatted) && attempts < 10) {
variation = (random.nextDouble() - 0.5) * 2;
wrongAnswer = correctAnswer + variation;
formatted = formatTrigValue(wrongAnswer);
attempts++;
}
return formatted;
}
/**
* 计算三角函数
*/
private double calculateTrigFunction(String function, int angle) {
double radians = Math.toRadians(angle);
switch (function) {
case "sin":
// 对特定角度返回精确值
switch (angle) {
case 0: return 0;
case 30: return 0.5;
case 45: return Math.sqrt(2)/2;
case 60: return Math.sqrt(3)/2;
case 90: return 1;
case 120: return Math.sqrt(3)/2;
case 135: return Math.sqrt(2)/2;
case 150: return 0.5;
case 180: return 0;
case 210: return -0.5;
case 225: return -Math.sqrt(2)/2;
case 270: return -1;
case 300: return -Math.sqrt(3)/2;
case 315: return -Math.sqrt(2)/2;
case 330: return -0.5;
default: return Math.sin(radians);
}
case "cos":
// 对特定角度返回精确值
switch (angle) {
case 0: return 1;
case 30: return Math.sqrt(3)/2;
case 45: return Math.sqrt(2)/2;
case 60: return 0.5;
case 90: return 0;
case 120: return -0.5;
case 135: return -Math.sqrt(2)/2;
case 150: return -Math.sqrt(3)/2;
case 180: return -1;
case 210: return -Math.sqrt(3)/2;
case 225: return -Math.sqrt(2)/2;
case 270: return 0;
case 300: return 0.5;
case 315: return Math.sqrt(2)/2;
case 330: return Math.sqrt(3)/2;
default: return Math.cos(radians);
}
case "tan":
// 对特定角度返回精确值或未定义
switch (angle) {
case 0: return 0;
case 30: return Math.sqrt(3)/3;
case 45: return 1;
case 60: return Math.sqrt(3);
case 90: return Double.POSITIVE_INFINITY; // 未定义
case 120: return -Math.sqrt(3);
case 135: return -1;
case 150: return -Math.sqrt(3)/3;
case 180: return 0;
case 210: return Math.sqrt(3)/3;
case 225: return 1;
case 270: return Double.POSITIVE_INFINITY; // 未定义
case 300: return -Math.sqrt(3);
case 315: return -1;
case 330: return -Math.sqrt(3)/3;
default: return Math.tan(radians);
}
default: return 0;
}
}
/**
* 生成错误选项
@ -181,18 +403,571 @@ public class ChoiceQuestionGenerator {
}
}
/**
* 计算三角函数
* 生成复合运算表达式
* @param operatorCount 运算符数量（1-3个）
* @return 返回[表达式字符串, 计算结果字符串]
*/
private double calculateTrigFunction(String function, int angle) {
double radians = Math.toRadians(angle);
switch (function) {
case "sin": return Math.sin(radians);
case "cos": return Math.cos(radians);
case "tan": return Math.tan(radians);
default: return 0;
private String[] generateCompoundExpression(int operatorCount) {
StringBuilder expression = new StringBuilder();
List<Integer> operands = new ArrayList<>();
List<String> operators = new ArrayList<>();
// 生成操作数（运算符数量+1个操作数）
for (int i = 0; i <= operatorCount; i++) {
operands.add(MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE));
}
// 生成运算符
String[] availableOps = {"+", "-", "*"};
for (int i = 0; i < operatorCount; i++) {
operators.add(availableOps[random.nextInt(availableOps.length)]);
}
// 构建表达式字符串
expression.append(operands.get(0));
for (int i = 0; i < operatorCount; i++) {
expression.append(" ").append(operators.get(i)).append(" ").append(operands.get(i + 1));
}
expression.append(" = ?");
// 计算表达式结果
int result = calculateCompoundExpression(operands, operators);
return new String[]{expression.toString(), String.valueOf(result)};
}
/**
* 生成初中复合运算表达式（确保包含平方/开方）
*/
private String[] generateJuniorCompoundExpressionWithGuarantee(int operatorCount) {
StringBuilder expression = new StringBuilder();
List<Integer> operands = new ArrayList<>();
List<String> operators = new ArrayList<>();
// 生成操作数（运算符数量+1个操作数）
for (int i = 0; i <= operatorCount; i++) {
operands.add(MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE));
}
// 确保至少有一个平方或开方运算
boolean hasSquareOrRoot = false;
// 生成运算符
for (int i = 0; i < operatorCount; i++) {
String[] availableOps;
if (!hasSquareOrRoot && i == operatorCount - 1) {
// 最后一个运算符必须是平方或开方
availableOps = new String[]{"²", "√"};
hasSquareOrRoot = true;
} else if (!hasSquareOrRoot && random.nextDouble() < 0.4) {
// 40%概率选择平方或开方
availableOps = new String[]{"+", "-", "*", "/", "²", "√"};
} else {
// 其他情况选择基础运算
availableOps = new String[]{"+", "-", "*", "/"};
}
String selectedOp = availableOps[random.nextInt(availableOps.length)];
if (selectedOp.equals("²") || selectedOp.equals("√")) {
hasSquareOrRoot = true;
}
operators.add(selectedOp);
}
// 构建表达式字符串
expression.append(operands.get(0));
for (int i = 0; i < operatorCount; i++) {
if (operators.get(i).equals("²")) {
expression.append("²");
} else if (operators.get(i).equals("√")) {
// 确保开方的是完全平方数
int perfectSquare = (int) Math.pow(random.nextInt(10) + 1, 2);
expression.append("√").append(perfectSquare);
operands.set(i + 1, (int) Math.sqrt(perfectSquare));
} else {
expression.append(" ").append(operators.get(i)).append(" ").append(operands.get(i + 1));
}
}
expression.append(" = ?");
// 计算表达式结果
int result = calculateJuniorCompoundExpression(operands, operators);
return new String[]{expression.toString(), String.valueOf(result)};
}
/**
* 生成初中复合运算表达式（包含平方/开方）
*/
private String[] generateJuniorCompoundExpression(int operatorCount) {
StringBuilder expression = new StringBuilder();
List<Integer> operands = new ArrayList<>();
List<String> operators = new ArrayList<>();
// 生成操作数（运算符数量+1个操作数）
for (int i = 0; i <= operatorCount; i++) {
operands.add(MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE));
}
// 生成运算符（包含平方/开方）
String[] availableOps = {"+", "-", "*", "/", "²", "√"};
for (int i = 0; i < operatorCount; i++) {
operators.add(availableOps[random.nextInt(availableOps.length)]);
}
// 构建表达式字符串
expression.append(operands.get(0));
for (int i = 0; i < operatorCount; i++) {
if (operators.get(i).equals("²")) {
expression.append("²");
} else if (operators.get(i).equals("√")) {
// 确保开方的是完全平方数
int perfectSquare = (int) Math.pow(random.nextInt(10) + 1, 2);
expression.append("√").append(perfectSquare);
operands.set(i + 1, (int) Math.sqrt(perfectSquare));
} else {
expression.append(" ").append(operators.get(i)).append(" ").append(operands.get(i + 1));
}
}
expression.append(" = ?");
// 计算表达式结果
int result = calculateJuniorCompoundExpression(operands, operators);
return new String[]{expression.toString(), String.valueOf(result)};
}
/**
* 生成包含除法的复合运算表达式
*/
private String[] generateCompoundExpressionWithDivision(int operatorCount) {
StringBuilder expression = new StringBuilder();
List<Integer> operands = new ArrayList<>();
List<String> operators = new ArrayList<>();
// 生成操作数（运算符数量+1个操作数）
for (int i = 0; i <= operatorCount; i++) {
operands.add(MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE));
}
// 生成运算符（包含除法）
String[] availableOps = {"+", "-", "*", "/"};
for (int i = 0; i < operatorCount; i++) {
operators.add(availableOps[random.nextInt(availableOps.length)]);
}
// 构建表达式字符串
expression.append(operands.get(0));
for (int i = 0; i < operatorCount; i++) {
expression.append(" ").append(operators.get(i)).append(" ").append(operands.get(i + 1));
}
expression.append(" = ?");
// 计算表达式结果
int result = calculateCompoundExpressionWithDivision(operands, operators);
return new String[]{expression.toString(), String.valueOf(result)};
}
/**
* 计算复合表达式
*/
private int calculateCompoundExpression(List<Integer> operands, List<String> operators) {
// 先处理乘除法，再处理加减法
List<Integer> numbers = new ArrayList<>(operands);
List<String> ops = new ArrayList<>(operators);
// 第一轮：处理乘除法
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("*")) {
int result = numbers.get(i) * numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
}
}
// 第二轮：处理加减法
int result = numbers.get(0);
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("+")) {
result += numbers.get(i + 1);
} else if (ops.get(i).equals("-")) {
result -= numbers.get(i + 1);
}
}
return result;
}
/**
* 生成高中复合运算表达式（确保包含三角函数）
*/
private String[] generateSeniorCompoundExpressionWithGuarantee(int operatorCount) {
StringBuilder expression = new StringBuilder();
List<Double> operands = new ArrayList<>();
List<String> operators = new ArrayList<>();
// 生成操作数（运算符数量+1个操作数）
for (int i = 0; i <= operatorCount; i++) {
operands.add((double)(MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE)));
}
// 确保至少有一个三角函数运算
boolean hasTrigFunction = false;
// 生成运算符
for (int i = 0; i < operatorCount; i++) {
String[] availableOps;
if (!hasTrigFunction && i == operatorCount - 1) {
// 最后一个运算符必须是三角函数
availableOps = new String[]{"sin", "cos", "tan"};
hasTrigFunction = true;
} else if (!hasTrigFunction && random.nextDouble() < 0.4) {
// 40%概率选择三角函数
availableOps = new String[]{"+", "-", "*", "/", "sin", "cos", "tan"};
} else {
// 其他情况选择基础运算
availableOps = new String[]{"+", "-", "*", "/"};
}
String selectedOp = availableOps[random.nextInt(availableOps.length)];
if (selectedOp.equals("sin") || selectedOp.equals("cos") || selectedOp.equals("tan")) {
hasTrigFunction = true;
}
operators.add(selectedOp);
}
// 构建表达式字符串
expression.append(operands.get(0).intValue());
for (int i = 0; i < operatorCount; i++) {
if (operators.get(i).equals("sin") || operators.get(i).equals("cos") || operators.get(i).equals("tan")) {
// 生成常见角度
int[] commonAngles = {0, 30, 45, 60, 90, 120, 135, 150, 180, 210, 225, 270, 300, 315, 330};
int angle = commonAngles[random.nextInt(commonAngles.length)];
expression.append(" ").append(operators.get(i)).append("(").append(angle).append("°)");
// 计算三角函数值
double trigValue = calculateTrigFunction(operators.get(i), angle);
operands.set(i + 1, trigValue);
} else {
expression.append(" ").append(operators.get(i)).append(" ").append(operands.get(i + 1).intValue());
}
}
expression.append(" = ?");
// 计算表达式结果
int result = calculateSeniorCompoundExpression(operands, operators);
return new String[]{expression.toString(), String.valueOf(result)};
}
/**
* 生成高中复合运算表达式（包含三角函数）
*/
private String[] generateSeniorCompoundExpression(int operatorCount) {
StringBuilder expression = new StringBuilder();
List<Double> operands = new ArrayList<>();
List<String> operators = new ArrayList<>();
// 生成操作数（运算符数量+1个操作数）
for (int i = 0; i <= operatorCount; i++) {
operands.add((double)(MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE)));
}
// 生成运算符（包含三角函数）
String[] availableOps = {"+", "-", "*", "/", "sin", "cos", "tan"};
for (int i = 0; i < operatorCount; i++) {
operators.add(availableOps[random.nextInt(availableOps.length)]);
}
// 构建表达式字符串
expression.append(operands.get(0).intValue());
for (int i = 0; i < operatorCount; i++) {
if (operators.get(i).equals("sin") || operators.get(i).equals("cos") || operators.get(i).equals("tan")) {
// 生成常见角度
int[] commonAngles = {0, 30, 45, 60, 90, 120, 135, 150, 180, 210, 225, 270, 300, 315, 330};
int angle = commonAngles[random.nextInt(commonAngles.length)];
expression.append(" ").append(operators.get(i)).append("(").append(angle).append("°)");
// 计算三角函数值
double trigValue = calculateTrigFunction(operators.get(i), angle);
operands.set(i + 1, trigValue);
} else {
expression.append(" ").append(operators.get(i)).append(" ").append(operands.get(i + 1).intValue());
}
}
expression.append(" = ?");
// 计算表达式结果
int result = calculateSeniorCompoundExpression(operands, operators);
return new String[]{expression.toString(), String.valueOf(result)};
}
/**
* 生成高级复合运算表达式（包含平方运算）
*/
private String[] generateAdvancedCompoundExpression(int operatorCount) {
StringBuilder expression = new StringBuilder();
List<Integer> operands = new ArrayList<>();
List<String> operators = new ArrayList<>();
// 生成操作数（运算符数量+1个操作数）
for (int i = 0; i <= operatorCount; i++) {
operands.add(MIN_OPERAND_VALUE + random.nextInt(MAX_OPERAND_VALUE));
}
// 生成运算符（包含平方运算）
String[] availableOps = {"+", "-", "*", "/", "²"};
for (int i = 0; i < operatorCount; i++) {
operators.add(availableOps[random.nextInt(availableOps.length)]);
}
// 构建表达式字符串
expression.append(operands.get(0));
for (int i = 0; i < operatorCount; i++) {
if (operators.get(i).equals("²")) {
expression.append("²");
} else {
expression.append(" ").append(operators.get(i)).append(" ").append(operands.get(i + 1));
}
}
expression.append(" = ?");
// 计算表达式结果
int result = calculateAdvancedCompoundExpression(operands, operators);
return new String[]{expression.toString(), String.valueOf(result)};
}
/**
* 计算包含除法的复合表达式
*/
private int calculateCompoundExpressionWithDivision(List<Integer> operands, List<String> operators) {
// 先处理乘除法，再处理加减法
List<Integer> numbers = new ArrayList<>(operands);
List<String> ops = new ArrayList<>(operators);
// 第一轮：处理乘除法
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("*")) {
int result = numbers.get(i) * numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
} else if (ops.get(i).equals("/")) {
if (numbers.get(i + 1) != 0) {
int result = numbers.get(i) / numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
} else {
// 避免除零错误，重新生成
numbers.set(i + 1, 1 + random.nextInt(MAX_OPERAND_VALUE));
int result = numbers.get(i) / numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
}
}
}
// 第二轮：处理加减法
int result = numbers.get(0);
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("+")) {
result += numbers.get(i + 1);
} else if (ops.get(i).equals("-")) {
result -= numbers.get(i + 1);
}
}
return result;
}
/**
* 计算初中复合表达式（包含平方/开方）
*/
private int calculateJuniorCompoundExpression(List<Integer> operands, List<String> operators) {
// 先处理平方和开方运算
List<Integer> numbers = new ArrayList<>(operands);
List<String> ops = new ArrayList<>(operators);
// 第一轮：处理平方和开方运算
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("²")) {
int result = numbers.get(i) * numbers.get(i);
numbers.set(i, result);
ops.remove(i);
i--; // 调整索引
} else if (ops.get(i).equals("√")) {
// 开方运算已经在生成时处理了
ops.remove(i);
i--; // 调整索引
}
}
// 第二轮：处理乘除法
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("*")) {
int result = numbers.get(i) * numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
} else if (ops.get(i).equals("/")) {
if (numbers.get(i + 1) != 0) {
int result = numbers.get(i) / numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
} else {
// 避免除零错误，重新生成
numbers.set(i + 1, 1 + random.nextInt(MAX_OPERAND_VALUE));
int result = numbers.get(i) / numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
}
}
}
// 第三轮：处理加减法
int result = numbers.get(0);
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("+")) {
result += numbers.get(i + 1);
} else if (ops.get(i).equals("-")) {
result -= numbers.get(i + 1);
}
}
return result;
}
/**
* 计算高中复合表达式（包含三角函数）
*/
private int calculateSeniorCompoundExpression(List<Double> operands, List<String> operators) {
// 先处理三角函数运算
List<Double> numbers = new ArrayList<>(operands);
List<String> ops = new ArrayList<>(operators);
// 第一轮：处理三角函数运算
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("sin") || ops.get(i).equals("cos") || ops.get(i).equals("tan")) {
// 三角函数运算已经在生成时处理了
ops.remove(i);
i--; // 调整索引
}
}
// 第二轮：处理乘除法
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("*")) {
double result = numbers.get(i) * numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
} else if (ops.get(i).equals("/")) {
if (numbers.get(i + 1) != 0) {
double result = numbers.get(i) / numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
} else {
// 避免除零错误，重新生成
numbers.set(i + 1, 1.0 + random.nextInt(MAX_OPERAND_VALUE));
double result = numbers.get(i) / numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
}
}
}
// 第三轮：处理加减法
double result = numbers.get(0);
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("+")) {
result += numbers.get(i + 1);
} else if (ops.get(i).equals("-")) {
result -= numbers.get(i + 1);
}
}
return (int) Math.round(result);
}
/**
* 计算高级复合表达式（包含平方运算）
*/
private int calculateAdvancedCompoundExpression(List<Integer> operands, List<String> operators) {
// 先处理平方运算
List<Integer> numbers = new ArrayList<>(operands);
List<String> ops = new ArrayList<>(operators);
// 第一轮：处理平方运算
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("²")) {
int result = numbers.get(i) * numbers.get(i);
numbers.set(i, result);
ops.remove(i);
i--; // 调整索引
}
}
// 第二轮：处理乘除法
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("*")) {
int result = numbers.get(i) * numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
} else if (ops.get(i).equals("/")) {
if (numbers.get(i + 1) != 0) {
int result = numbers.get(i) / numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
} else {
// 避免除零错误，重新生成
numbers.set(i + 1, 1 + random.nextInt(MAX_OPERAND_VALUE));
int result = numbers.get(i) / numbers.get(i + 1);
numbers.set(i, result);
numbers.remove(i + 1);
ops.remove(i);
i--; // 调整索引
}
}
}
// 第三轮：处理加减法
int result = numbers.get(0);
for (int i = 0; i < ops.size(); i++) {
if (ops.get(i).equals("+")) {
result += numbers.get(i + 1);
} else if (ops.get(i).equals("-")) {
result -= numbers.get(i + 1);
}
}
return result;
}
/**
* 获取随机运算符

57
src/main/java/com/example/mathsystemtogether/ExamController.java
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@ -33,6 +33,7 @@ public class ExamController {
@FXML private Button startExamButton;
@FXML private Button logoutButton;
@FXML private Label statusLabel;
@FXML private Button changePasswordButton;
// 数据成员
private Account currentAccount;
@ -197,6 +198,62 @@ public class ExamController {
}
}
@FXML
private void handleChangePassword() {
if (currentAccount == null) {
statusLabel.setText("请先登录");
statusLabel.setStyle("-fx-text-fill: red;");
return;
}
try {
FXMLLoader loader = new FXMLLoader(getClass().getResource("change-password-view.fxml"));
Scene scene = new Scene(loader.load(), 600, 500);
Stage changePasswordStage = new Stage();
changePasswordStage.setTitle("修改密码");
changePasswordStage.setScene(scene);
changePasswordStage.setResizable(false);
// 传递当前用户信息给密码修改控制器
ChangePasswordController controller = loader.getController();
controller.setCurrentUser(currentAccount.username);
controller.setExamController(this);
changePasswordStage.show();
} catch (Exception e) {
statusLabel.setText("打开修改密码界面失败：" + e.getMessage());
statusLabel.setStyle("-fx-text-fill: red;");
}
}
// 供 ChangePasswordController 调用的方法
public boolean checkUserPassword(String username, String password) {
Account account = userMap.get(username);
return account != null && account.password.equals(password);
}
// 更新用户密码
public void updateUserPassword(String username, String newPassword) {
Account account = userMap.get(username);
if (account != null) {
account.password = newPassword;
}
}
// 为继续做题设置用户信息
public void setUserForContinueExam(String username, String level) {
// 设置当前用户
Account account = userMap.get(username);
if (account != null) {
currentAccount = account;
welcomeLabel.setText("欢迎，" + username + "！当前级别：" + account.level);
levelComboBox.setValue(account.level.toString());
examSetupPanel.setVisible(true);
loginStatusLabel.setText("继续做题模式");
loginStatusLabel.setStyle("-fx-text-fill: green;");
}
}
private void startExam() {
try {
// 打开专门的考试界面

175
src/main/java/com/example/mathsystemtogether/ExamDetailsController.java
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@ -0,0 +1,175 @@
package com.example.mathsystemtogether;
import javafx.fxml.FXML;
import javafx.scene.control.*;
import javafx.scene.layout.VBox;
import javafx.scene.layout.HBox;
import javafx.scene.text.Font;
import javafx.scene.text.FontWeight;
import javafx.scene.paint.Color;
import javafx.stage.Stage;
import java.util.List;
/**
* 考试详细信息界面控制器
*/
public class ExamDetailsController {
@FXML private Label examInfoLabel;
@FXML private ScrollPane detailsScrollPane;
@FXML private VBox detailsContainer;
@FXML private Button scrollToTopButton;
@FXML private Button scrollToBottomButton;
@FXML private Button closeButton;
// 数据成员
private List<Question> examQuestions;
private List<String> userAnswers;
private String username;
private String level;
/**
* 设置考试详细信息
*/
public void setExamDetails(List<Question> questions, List<String> answers, String username, String level) {
this.examQuestions = questions;
this.userAnswers = answers;
this.username = username;
this.level = level;
// 更新界面显示
updateDisplay();
}
/**
* 更新界面显示
*/
private void updateDisplay() {
// 更新考试信息
examInfoLabel.setText(String.format("用户: %s | 级别: %s | 题目: %d题", username, level, examQuestions.size()));
// 清空容器
detailsContainer.getChildren().clear();
// 添加每道题的详细信息
for (int i = 0; i < examQuestions.size(); i++) {
Question question = examQuestions.get(i);
String userAnswer = i < userAnswers.size() ? userAnswers.get(i) : "未作答";
boolean isCorrect = question.isCorrect(userAnswer);
// 创建题目详情卡片
VBox questionCard = createQuestionCard(i + 1, question, userAnswer, isCorrect);
detailsContainer.getChildren().add(questionCard);
}
}
/**
* 创建题目详情卡片
*/
private VBox createQuestionCard(int questionNumber, Question question, String userAnswer, boolean isCorrect) {
VBox card = new VBox();
card.setSpacing(10);
card.setStyle("-fx-background-color: " + (isCorrect ? "rgba(144,238,144,0.3)" : "rgba(255,182,193,0.3)") +
"; -fx-background-radius: 10; -fx-padding: 15; -fx-border-color: " +
(isCorrect ? "#90EE90" : "#FFB6C1") + "; -fx-border-radius: 10; -fx-border-width: 2;");
// 题目编号和状态
HBox headerBox = new HBox();
headerBox.setSpacing(10);
Label questionNumLabel = new Label("第 " + questionNumber + " 题");
questionNumLabel.setFont(Font.font("System", FontWeight.BOLD, 16));
questionNumLabel.setTextFill(Color.DARKBLUE);
Label statusLabel = new Label(isCorrect ? "✓ 正确" : "✗ 错误");
statusLabel.setFont(Font.font("System", FontWeight.BOLD, 14));
statusLabel.setTextFill(isCorrect ? Color.GREEN : Color.RED);
headerBox.getChildren().addAll(questionNumLabel, statusLabel);
// 题目内容
Label questionLabel = new Label("题目: " + question.getQuestionText());
questionLabel.setFont(Font.font("System", 14));
questionLabel.setWrapText(true);
// 选项
VBox optionsBox = new VBox();
optionsBox.setSpacing(5);
Label optionALabel = new Label("A. " + question.getOptionA());
Label optionBLabel = new Label("B. " + question.getOptionB());
Label optionCLabel = new Label("C. " + question.getOptionC());
Label optionDLabel = new Label("D. " + question.getOptionD());
// 高亮用户答案和正确答案
highlightAnswer(optionALabel, question.getOptionA(), userAnswer, question.getCorrectAnswer());
highlightAnswer(optionBLabel, question.getOptionB(), userAnswer, question.getCorrectAnswer());
highlightAnswer(optionCLabel, question.getOptionC(), userAnswer, question.getCorrectAnswer());
highlightAnswer(optionDLabel, question.getOptionD(), userAnswer, question.getCorrectAnswer());
optionsBox.getChildren().addAll(optionALabel, optionBLabel, optionCLabel, optionDLabel);
// 答案信息
HBox answerBox = new HBox();
answerBox.setSpacing(20);
Label userAnswerLabel = new Label("你的答案: " + userAnswer);
userAnswerLabel.setFont(Font.font("System", FontWeight.BOLD, 12));
userAnswerLabel.setTextFill(Color.BLUE);
Label correctAnswerLabel = new Label("正确答案: " + question.getCorrectAnswer());
correctAnswerLabel.setFont(Font.font("System", FontWeight.BOLD, 12));
correctAnswerLabel.setTextFill(Color.GREEN);
answerBox.getChildren().addAll(userAnswerLabel, correctAnswerLabel);
// 添加到卡片
card.getChildren().addAll(headerBox, questionLabel, optionsBox, answerBox);
return card;
}
/**
* 高亮显示答案选项
*/
private void highlightAnswer(Label optionLabel, String optionValue, String userAnswer, String correctAnswer) {
optionLabel.setFont(Font.font("System", 12));
if (optionValue.equals(correctAnswer)) {
// 正确答案 - 绿色背景
optionLabel.setStyle("-fx-background-color: rgba(144,238,144,0.5); -fx-background-radius: 5; -fx-padding: 5; -fx-font-weight: bold;");
} else if (optionValue.equals(userAnswer) && !userAnswer.equals(correctAnswer)) {
// 用户错误答案 - 红色背景
optionLabel.setStyle("-fx-background-color: rgba(255,182,193,0.5); -fx-background-radius: 5; -fx-padding: 5; -fx-font-weight: bold;");
} else {
// 其他选项 - 默认样式
optionLabel.setStyle("-fx-padding: 5;");
}
}
/**
* 处理滚动到顶部按钮
*/
@FXML
private void handleScrollToTop() {
detailsScrollPane.setVvalue(0.0);
}
/**
* 处理滚动到底部按钮
*/
@FXML
private void handleScrollToBottom() {
detailsScrollPane.setVvalue(1.0);
}
/**
* 处理关闭按钮
*/
@FXML
private void handleClose() {
Stage stage = (Stage) closeButton.getScene().getWindow();
stage.close();
}
}

206
src/main/java/com/example/mathsystemtogether/ExamResultController.java
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@ -0,0 +1,206 @@
package com.example.mathsystemtogether;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.stage.Stage;
import java.util.List;
/**
* 考试结果界面控制器
*/
public class ExamResultController {
@FXML private Label titleLabel;
@FXML private Label subtitleLabel;
@FXML private Label scoreLabel;
@FXML private Label correctCountLabel;
@FXML private Label totalCountLabel;
@FXML private Label accuracyLabel;
@FXML private Label gradeLabel;
@FXML private Label commentLabel;
@FXML private Button continueButton;
@FXML private Button exitButton;
@FXML private Button detailsButton;
// 数据成员
private List<Question> examQuestions;
private List<String> userAnswers;
private String username;
private String level;
private int score;
private int correctCount;
private int totalCount;
private double accuracy;
/**
* 设置考试结果数据
*/
public void setExamResult(List<Question> questions, List<String> answers, String username, String level) {
this.examQuestions = questions;
this.userAnswers = answers;
this.username = username;
this.level = level;
this.totalCount = questions.size();
// 计算成绩
calculateScore();
// 更新界面显示
updateDisplay();
}
/**
* 计算考试成绩
*/
private void calculateScore() {
correctCount = 0;
for (int i = 0; i < examQuestions.size(); i++) {
Question question = examQuestions.get(i);
String userAnswer = i < userAnswers.size() ? userAnswers.get(i) : "";
if (question.isCorrect(userAnswer)) {
correctCount++;
}
}
score = (int) Math.round((double) correctCount / totalCount * 100);
accuracy = (double) correctCount / totalCount * 100;
}
/**
* 更新界面显示
*/
private void updateDisplay() {
// 更新分数显示
scoreLabel.setText(String.format("得分: %d分", score));
correctCountLabel.setText(String.format("正确: %d题", correctCount));
totalCountLabel.setText(String.format("总计: %d题", totalCount));
accuracyLabel.setText(String.format("正确率: %.1f%%", accuracy));
// 更新成绩评价
String grade = getGrade(score);
String comment = getComment(score);
gradeLabel.setText(grade);
commentLabel.setText(comment);
// 根据成绩调整颜色
updateGradeColor(score);
}
/**
* 获取成绩等级
*/
private String getGrade(int score) {
if (score >= 90) return "优秀";
else if (score >= 80) return "良好";
else if (score >= 70) return "中等";
else if (score >= 60) return "及格";
else return "不及格";
}
/**
* 获取成绩评语
*/
private String getComment(int score) {
if (score >= 90) return "表现非常出色！继续保持！";
else if (score >= 80) return "表现良好，还有提升空间！";
else if (score >= 70) return "表现中等，需要加强练习！";
else if (score >= 60) return "刚刚及格，需要更多努力！";
else return "需要认真学习，多加练习！";
}
/**
* 根据成绩更新颜色
*/
private void updateGradeColor(int score) {
String color;
if (score >= 90) color = "#2E8B57"; // 绿色
else if (score >= 80) color = "#32CD32"; // 浅绿色
else if (score >= 70) color = "#FFD700"; // 金色
else if (score >= 60) color = "#FF8C00"; // 橙色
else color = "#DC143C"; // 红色
gradeLabel.setStyle("-fx-font-size: 24; -fx-font-weight: bold; -fx-text-fill: " + color + ";");
}
/**
* 处理继续做题按钮
*/
@FXML
private void handleContinueExam() {
try {
// 关闭当前窗口
Stage currentStage = (Stage) continueButton.getScene().getWindow();
currentStage.close();
// 打开考试设置界面，让用户选择题目数量和难度
FXMLLoader loader = new FXMLLoader(getClass().getResource("exam-view.fxml"));
Scene scene = new Scene(loader.load(), 1000, 900);
Stage stage = new Stage();
stage.setTitle("数学考试系统");
stage.setScene(scene);
// 获取主界面控制器并设置用户信息
ExamController examController = loader.getController();
examController.setUserForContinueExam(username, level);
stage.show();
} catch (Exception e) {
showAlert("错误", "打开考试设置界面时出错：" + e.getMessage());
}
}
/**
* 处理退出系统按钮
*/
@FXML
private void handleExitSystem() {
// 关闭当前窗口
Stage currentStage = (Stage) exitButton.getScene().getWindow();
currentStage.close();
}
/**
* 处理查看详细信息按钮
*/
@FXML
private void handleShowDetails() {
try {
// 打开详细信息窗口
FXMLLoader loader = new FXMLLoader(getClass().getResource("exam-details-view.fxml"));
Scene scene = new Scene(loader.load(), 300, 700);
Stage detailsStage = new Stage();
detailsStage.setTitle("详细答题情况");
detailsStage.setScene(scene);
detailsStage.setResizable(true);
detailsStage.setMinWidth(800);
detailsStage.setMinHeight(600);
// 传递数据给详细信息控制器
ExamDetailsController controller = loader.getController();
controller.setExamDetails(examQuestions, userAnswers, username, level);
detailsStage.show();
} catch (Exception e) {
showAlert("错误", "打开详细信息时出错：" + e.getMessage());
}
}
/**
* 显示警告对话框
*/
private void showAlert(String title, String message) {
Alert alert = new Alert(Alert.AlertType.INFORMATION);
alert.setTitle(title);
alert.setHeaderText(null);
alert.setContentText(message);
alert.showAndWait();
}
}

115
src/main/java/com/example/mathsystemtogether/ExamTakingController.java
Unescape View File

@ -4,10 +4,7 @@ import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.animation.Timeline;
import javafx.animation.KeyFrame;
import javafx.util.Duration;
@ -31,6 +28,7 @@ public class ExamTakingController {
@FXML private ToggleGroup answerGroup;
@FXML private Button submitButton;
@FXML private Button nextButton;
@FXML private Button prevButton;
@FXML private Button exitExamButton;
@FXML private ProgressBar progressBar;
@FXML private Label progressLabel;
@ -117,10 +115,57 @@ public class ExamTakingController {
optionC.setText("C. " + question.getOptionC());
optionD.setText("D. " + question.getOptionD());
// 清除之前的选择
answerGroup.selectToggle(null);
// 恢复之前保存的答案选择
restorePreviousAnswer();
// 更新按钮状态
updateButtonStates();
updateProgress();
}
/**
* 恢复之前保存的答案选择
*/
private void restorePreviousAnswer() {
String savedAnswer = userAnswers.get(currentQuestionIndex);
if (savedAnswer != null) {
// 根据保存的答案值找到对应的选项
Question question = examQuestions.get(currentQuestionIndex);
if (savedAnswer.equals(question.getOptionA())) {
answerGroup.selectToggle(optionA);
} else if (savedAnswer.equals(question.getOptionB())) {
answerGroup.selectToggle(optionB);
} else if (savedAnswer.equals(question.getOptionC())) {
answerGroup.selectToggle(optionC);
} else if (savedAnswer.equals(question.getOptionD())) {
answerGroup.selectToggle(optionD);
}
} else {
// 没有保存的答案，清除选择
answerGroup.selectToggle(null);
}
}
/**
* 保存当前答案
*/
private void saveCurrentAnswer() {
RadioButton selectedOption = (RadioButton) answerGroup.getSelectedToggle();
if (selectedOption != null) {
String answer = getAnswerValue(selectedOption.getText().substring(0, 1));
userAnswers.put(currentQuestionIndex, answer);
}
}
/**
* 更新按钮状态
*/
private void updateButtonStates() {
// 上一题按钮状态
prevButton.setVisible(currentQuestionIndex > 0);
// 下一题按钮状态
if (currentQuestionIndex == examQuestions.size() - 1) {
submitButton.setText("✅ 提交并完成考试");
nextButton.setVisible(false);
@ -128,8 +173,6 @@ public class ExamTakingController {
submitButton.setText("✅ 提交答案");
nextButton.setVisible(true);
}
updateProgress();
}
private void updateProgress() {
@ -173,10 +216,22 @@ public class ExamTakingController {
}
@FXML
private void handleNextQuestion() {
// 保存当前答案（如果有选择的话）
saveCurrentAnswer();
currentQuestionIndex++;
displayCurrentQuestion();
}
@FXML
private void handlePreviousQuestion() {
if (currentQuestionIndex > 0) {
// 保存当前答案（如果有选择的话）
saveCurrentAnswer();
currentQuestionIndex--;
displayCurrentQuestion();
}
}
@FXML
private void handleExitExam() {
if (showExitConfirmation()) {
@ -206,40 +261,30 @@ public class ExamTakingController {
// 停止计时器
timer.stop();
// 计算成绩
int correctCount = 0;
StringBuilder resultDetails = new StringBuilder();
// 准备用户答案列表
List<String> userAnswersList = new ArrayList<>();
for (int i = 0; i < examQuestions.size(); i++) {
Question question = examQuestions.get(i);
String userAnswer = userAnswers.get(i);
boolean isCorrect = question.isCorrect(userAnswer);
if (isCorrect) {
correctCount++;
String answer = userAnswers.get(i);
userAnswersList.add(answer != null ? answer : "");
}
resultDetails.append("第").append(i + 1).append("题: ");
resultDetails.append(question.getQuestionText()).append("\n");
resultDetails.append("你的答案: ").append(userAnswer != null ? userAnswer : "未作答").append(" ");
resultDetails.append("正确答案: ").append(question.getCorrectAnswer()).append(" ");
resultDetails.append(isCorrect ? "✓" : "✗").append("\n\n");
}
// 关闭当前考试窗口
Stage currentStage = (Stage) submitButton.getScene().getWindow();
currentStage.close();
int score = (int) Math.round((double) correctCount / examQuestions.size() * 100);
// 打开结果界面
FXMLLoader loader = new FXMLLoader(getClass().getResource("exam-result-view.fxml"));
Scene scene = new Scene(loader.load(), 600, 700);
Stage resultStage = new Stage();
resultStage.setTitle("考试结果");
resultStage.setScene(scene);
resultStage.setResizable(false);
// 显示结果对话框
Alert resultAlert = new Alert(Alert.AlertType.INFORMATION);
resultAlert.setTitle("考试完成");
resultAlert.setHeaderText("🎉 考试结果");
resultAlert.setContentText(String.format(
"得分: %d分\n正确: %d题\n总计: %d题\n正确率: %.1f%%",
score, correctCount, examQuestions.size(), (double) correctCount / examQuestions.size() * 100
));
resultAlert.showAndWait();
// 传递数据给结果控制器
ExamResultController controller = loader.getController();
controller.setExamResult(examQuestions, userAnswersList, username, level);
// 返回主菜单
returnToMainMenu();
resultStage.show();
} catch (Exception e) {
showAlert("错误", "显示结果时出错：" + e.getMessage());

2
src/main/java/com/example/mathsystemtogether/HelloApplication.java
Unescape View File

@ -11,7 +11,7 @@ public class HelloApplication extends Application {
@Override
public void start(Stage stage) throws IOException {
FXMLLoader fxmlLoader = new FXMLLoader(HelloApplication.class.getResource("exam-view.fxml"));
Scene scene = new Scene(fxmlLoader.load(), 900, 900);
Scene scene = new Scene(fxmlLoader.load(), 900, 800);
stage.setTitle("数学考试系统");
stage.setResizable(true);
stage.setScene(scene);

17
src/main/java/com/example/mathsystemtogether/RegisterController.java
Unescape View File

@ -37,6 +37,10 @@ public class RegisterController {
private static final String EMAIL_REGEX = "^[A-Za-z0-9+_.-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,}$";
private static final Pattern EMAIL_PATTERN = Pattern.compile(EMAIL_REGEX);
// 密码强度验证正则表达式
private static final String PASSWORD_REGEX = "^(?=.*[a-z])(?=.*[A-Z])(?=.*\\d).+$";
private static final Pattern PASSWORD_PATTERN = Pattern.compile(PASSWORD_REGEX);
// 用户数据文件路径
private static final String USER_DATA_FILE = "user_data.txt";
@ -141,6 +145,11 @@ public class RegisterController {
return;
}
if (!isValidPassword(password)) {
showStatus("密码必须包含大小写字母和数字", true);
return;
}
if (!password.equals(confirmPassword)) {
showStatus("两次输入的密码不一致", true);
return;
@ -230,6 +239,14 @@ public class RegisterController {
return EMAIL_PATTERN.matcher(email).matches();
}
/**
* 验证密码强度
* 密码必须包含至少一个小写字母、一个大写字母和一个数字
*/
private boolean isValidPassword(String password) {
return PASSWORD_PATTERN.matcher(password).matches();
}
private boolean isUserExists(String username) {
try {
if (!Files.exists(Paths.get(USER_DATA_FILE))) {

70
src/main/resources/com/example/mathsystemtogether/change-password-view.fxml
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@ -0,0 +1,70 @@
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.Font?>
<?import javafx.scene.effect.DropShadow?>
<VBox xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.example.mathsystemtogether.ChangePasswordController"
spacing="20.0" style="-fx-background-color: linear-gradient(to bottom, #6A0DAD, #4B0082, #2E0854);"
prefHeight="500.0" prefWidth="600.0">
<padding>
<Insets bottom="30.0" left="40.0" right="40.0" top="30.0"/>
</padding>
<VBox spacing="15.0" style="-fx-background-color: linear-gradient(to right, #8A2BE2, #9932CC, #8B008B); -fx-background-radius: 15; -fx-padding: 20;">
<Label text="🔐 修改密码" textFill="white" textAlignment="CENTER" style="-fx-effect: dropshadow(gaussian, rgba(0,0,0,0.5), 10, 0, 0, 2);">
<font>
<Font name="System Bold" size="24.0"/>
</font>
</Label>
</VBox>
<VBox spacing="20.0" style="-fx-background-color: linear-gradient(to bottom, #E6E6FA, #D8BFD8, #DDA0DD); -fx-padding: 25; -fx-background-radius: 15; -fx-effect: dropshadow(gaussian, rgba(139,0,139,0.3), 15, 0, 0, 5);">
<HBox spacing="15.0" alignment="CENTER_LEFT">
<Label text="👤 用户名:" minWidth="100.0" textFill="#6A0DAD">
<font>
<Font name="System Bold" size="14.0"/>
</font>
</Label>
<TextField fx:id="usernameField" editable="false" prefWidth="250.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
</HBox>
<HBox spacing="15.0" alignment="CENTER_LEFT">
<Label text="🔑 原密码:" minWidth="100.0" textFill="#6A0DAD">
<font>
<Font name="System Bold" size="14.0"/>
</font>
</Label>
<PasswordField fx:id="oldPasswordField" prefWidth="250.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
</HBox>
<HBox spacing="15.0" alignment="CENTER_LEFT">
<Label text="🆕 新密码:" minWidth="100.0" textFill="#6A0DAD">
<font>
<Font name="System Bold" size="14.0"/>
</font>
</Label>
<PasswordField fx:id="newPasswordField" prefWidth="250.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
</HBox>
<HBox spacing="15.0" alignment="CENTER_LEFT">
<Label text="✅ 确认密码:" minWidth="100.0" textFill="#6A0DAD">
<font>
<Font name="System Bold" size="14.0"/>
</font>
</Label>
<PasswordField fx:id="confirmNewPasswordField" prefWidth="250.0" style="-fx-background-color: white; -fx-background-radius: 8; -fx-border-color: #8A2BE2; -fx-border-radius: 8; -fx-border-width: 2; -fx-padding: 8;"/>
</HBox>
<HBox spacing="20.0" alignment="CENTER">
<Button fx:id="changePasswordButton" text="💾 保存修改" onAction="#handleChangePassword" style="-fx-background-color: linear-gradient(to right, #32CD32, #228B22); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 12 25; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
<Button fx:id="cancelButton" text="❌ 取消" onAction="#handleCancel" style="-fx-background-color: linear-gradient(to right, #DC143C, #B22222); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 12 25; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
</HBox>
<Label fx:id="statusLabel" textFill="#8B0000" style="-fx-font-weight: bold; -fx-font-size: 14;" textAlignment="CENTER"/>
</VBox>
</VBox>

48
src/main/resources/com/example/mathsystemtogether/exam-details-view.fxml
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@ -0,0 +1,48 @@
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>
<AnchorPane xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.example.mathsystemtogether.ExamDetailsController">
<children>
<!-- 背景渐变 -->
<AnchorPane style="-fx-background-color: linear-gradient(135deg, #667eea 0%, #764ba2 100%);">
<children>
<!-- 主要内容区域 -->
<VBox alignment="CENTER" spacing="20.0" style="-fx-background-color: rgba(255,255,255,0.95); -fx-background-radius: 20; -fx-padding: 30; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 20, 0, 0, 5);" AnchorPane.bottomAnchor="30.0" AnchorPane.leftAnchor="30.0" AnchorPane.rightAnchor="30.0" AnchorPane.topAnchor="30.0">
<children>
<!-- 标题区域 -->
<VBox alignment="CENTER" spacing="10.0">
<Label text="📊 详细答题情况" style="-fx-font-size: 28; -fx-font-weight: bold; -fx-text-fill: #2E8B57; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
<Label fx:id="examInfoLabel" text="用户: 张三 | 级别: 小学 | 题目: 10题" style="-fx-font-size: 16; -fx-text-fill: #666666;"/>
</VBox>
<!-- 答题详情区域 -->
<ScrollPane fx:id="detailsScrollPane" fitToWidth="true" hbarPolicy="NEVER" vbarPolicy="AS_NEEDED"
style="-fx-background-color: rgba(248,249,250,0.8); -fx-background-radius: 10; -fx-border-color: #E0E0E0; -fx-border-radius: 10; -fx-border-width: 1;"
prefHeight="400" maxHeight="500">
<content>
<VBox fx:id="detailsContainer" spacing="15.0" style="-fx-padding: 20;">
<!-- 详细信息将在这里动态添加 -->
</VBox>
</content>
</ScrollPane>
<!-- 滚动控制按钮区域 -->
<HBox alignment="CENTER" spacing="15.0">
<Button fx:id="scrollToTopButton" text="⬆️ 回到顶部" onAction="#handleScrollToTop" style="-fx-background-color: linear-gradient(to right, #4CAF50, #45a049); -fx-text-fill: white; -fx-background-radius: 8; -fx-padding: 8 15; -fx-font-size: 12; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.2), 3, 0, 0, 1);"/>
<Button fx:id="scrollToBottomButton" text="⬇️ 到底部" onAction="#handleScrollToBottom" style="-fx-background-color: linear-gradient(to right, #2196F3, #1976D2); -fx-text-fill: white; -fx-background-radius: 8; -fx-padding: 8 15; -fx-font-size: 12; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.2), 3, 0, 0, 1);"/>
</HBox>
<!-- 操作按钮区域 -->
<HBox alignment="CENTER" spacing="20.0">
<Button fx:id="closeButton" text="❌ 关闭" onAction="#handleClose" style="-fx-background-color: linear-gradient(to right, #DC143C, #B22222); -fx-text-fill: white; -fx-background-radius: 12; -fx-padding: 12 25; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
</HBox>
</children>
</VBox>
</children>
</AnchorPane>
</children>
</AnchorPane>

62
src/main/resources/com/example/mathsystemtogether/exam-result-view.fxml
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@ -0,0 +1,62 @@
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.text.*?>
<AnchorPane xmlns="http://javafx.com/javafx/11.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.example.mathsystemtogether.ExamResultController">
<children>
<!-- 背景渐变 -->
<AnchorPane style="-fx-background-color: linear-gradient(135deg, #667eea 0%, #764ba2 100%);">
<children>
<!-- 主要内容区域 -->
<VBox alignment="CENTER" spacing="30.0" style="-fx-background-color: rgba(255,255,255,0.95); -fx-background-radius: 20; -fx-padding: 40; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 20, 0, 0, 5);" AnchorPane.bottomAnchor="50.0" AnchorPane.leftAnchor="50.0" AnchorPane.rightAnchor="50.0" AnchorPane.topAnchor="50.0">
<children>
<!-- 标题区域 -->
<VBox alignment="CENTER" spacing="10.0">
<Label fx:id="titleLabel" text="🎉 考试完成！" style="-fx-font-size: 36; -fx-font-weight: bold; -fx-text-fill: #2E8B57; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
<Label fx:id="subtitleLabel" text="恭喜您完成了数学考试" style="-fx-font-size: 18; -fx-text-fill: #666666;"/>
</VBox>
<!-- 分数显示区域 -->
<VBox alignment="CENTER" spacing="20.0" style="-fx-background-color: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); -fx-background-radius: 15; -fx-padding: 30; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.2), 10, 0, 0, 3);">
<children>
<Label fx:id="scoreLabel" text="得分: 85分" style="-fx-font-size: 48; -fx-font-weight: bold; -fx-text-fill: white; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.5), 8, 0, 0, 2);"/>
<HBox alignment="CENTER" spacing="40.0">
<VBox alignment="CENTER" spacing="5.0">
<Label fx:id="correctCountLabel" text="正确: 8题" style="-fx-font-size: 16; -fx-text-fill: white; -fx-font-weight: bold;"/>
<Label text="正确题目" style="-fx-font-size: 12; -fx-text-fill: rgba(255,255,255,0.8);"/>
</VBox>
<VBox alignment="CENTER" spacing="5.0">
<Label fx:id="totalCountLabel" text="总计: 10题" style="-fx-font-size: 16; -fx-text-fill: white; -fx-font-weight: bold;"/>
<Label text="总题目" style="-fx-font-size: 12; -fx-text-fill: rgba(255,255,255,0.8);"/>
</VBox>
<VBox alignment="CENTER" spacing="5.0">
<Label fx:id="accuracyLabel" text="正确率: 80%" style="-fx-font-size: 16; -fx-text-fill: white; -fx-font-weight: bold;"/>
<Label text="准确率" style="-fx-font-size: 12; -fx-text-fill: rgba(255,255,255,0.8);"/>
</VBox>
</HBox>
</children>
</VBox>
<!-- 成绩评价区域 -->
<VBox alignment="CENTER" spacing="10.0">
<Label fx:id="gradeLabel" text="优秀" style="-fx-font-size: 24; -fx-font-weight: bold; -fx-text-fill: #2E8B57;"/>
<Label fx:id="commentLabel" text="表现非常出色！继续保持！" style="-fx-font-size: 16; -fx-text-fill: #666666;"/>
</VBox>
<!-- 操作按钮区域 -->
<HBox alignment="CENTER" spacing="30.0">
<Button fx:id="continueButton" text="🔄 继续做题" onAction="#handleContinueExam" style="-fx-background-color: linear-gradient(to right, #32CD32, #228B22); -fx-text-fill: white; -fx-background-radius: 12; -fx-padding: 15 30; -fx-font-size: 16; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
<Button fx:id="exitButton" text="🚪 退出系统" onAction="#handleExitSystem" style="-fx-background-color: linear-gradient(to right, #DC143C, #B22222); -fx-text-fill: white; -fx-background-radius: 12; -fx-padding: 15 30; -fx-font-size: 16; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
</HBox>
<!-- 详细信息按钮 -->
<Button fx:id="detailsButton" text="📊 查看详细答题情况" onAction="#handleShowDetails" style="-fx-background-color: linear-gradient(to right, #8A2BE2, #9932CC); -fx-text-fill: white; -fx-background-radius: 12; -fx-padding: 12 25; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
</children>
</VBox>
</children>
</AnchorPane>
</children>
</AnchorPane>

1
src/main/resources/com/example/mathsystemtogether/exam-taking-view.fxml
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@ -72,6 +72,7 @@
<!-- 操作按钮区域 -->
<HBox spacing="20.0" alignment="CENTER" style="-fx-background-color: rgba(255,255,255,0.9); -fx-background-radius: 15; -fx-padding: 20; -fx-effect: dropshadow(gaussian, rgba(139,0,139,0.2), 8, 0, 0, 3);">
<Button fx:id="prevButton" text="⬅️ 上一题" onAction="#handlePreviousQuestion" style="-fx-background-color: linear-gradient(to right, #FF8C00, #FF6347); -fx-text-fill: white; -fx-background-radius: 12; -fx-padding: 15 30; -fx-font-size: 16; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
<Button fx:id="submitButton" text="✅ 提交答案" onAction="#handleSubmitAnswer" style="-fx-background-color: linear-gradient(to right, #32CD32, #228B22); -fx-text-fill: white; -fx-background-radius: 12; -fx-padding: 15 30; -fx-font-size: 16; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
<Button fx:id="nextButton" text="➡️ 下一题" onAction="#handleNextQuestion" style="-fx-background-color: linear-gradient(to right, #8A2BE2, #9932CC); -fx-text-fill: white; -fx-background-radius: 12; -fx-padding: 15 30; -fx-font-size: 16; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
<Button fx:id="exitExamButton" text="🚪 退出考试" onAction="#handleExitExam" style="-fx-background-color: linear-gradient(to right, #DC143C, #B22222); -fx-text-fill: white; -fx-background-radius: 12; -fx-padding: 15 30; -fx-font-size: 16; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>

2
src/main/resources/com/example/mathsystemtogether/exam-view.fxml
Unescape View File

@ -89,8 +89,10 @@
<HBox spacing="15.0" alignment="CENTER_LEFT">
<Button fx:id="logoutButton" text="🚪 退出登录" onAction="#handleLogout" style="-fx-background-color: linear-gradient(to right, #DC143C, #B22222); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 10 20; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
<Button fx:id="changePasswordButton" text="🔑 修改密码" onAction="#handleChangePassword" style="-fx-background-color: linear-gradient(to right, #FF8C00, #FFA500); -fx-text-fill: white; -fx-background-radius: 10; -fx-padding: 10 20; -fx-font-size: 14; -fx-font-weight: bold; -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.3), 5, 0, 0, 2);"/>
</HBox>
<Label fx:id="statusLabel" textFill="#4B0082" style="-fx-font-weight: bold; -fx-font-size: 14;"/>
</VBox>

3
user_data.txt
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@ -1 +1,2 @@
wgll|123456|ymhlovesLQX@163.com|小学|1760162416490
wgll|Ymh123456|ymhlovesLQX@163.com|小学|1760162416490
666|123456789|252436951@qq.com|小学|1760166999971

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