ADD file via upload

Student.py

@@ -0,0 +1,90 @@
+from datetime import date
+
+class Student:
+    def __init__(self, sid: str, name: str, height: str, birth_date: date | str, enrollment_date: date | str, class_name: str):
+        self.sid = sid
+        self.name = name.strip()
+        self.height = int(height)  # 转换为整数类型
+        self.birth_date = birth_date if isinstance(birth_date, date) else date.fromisoformat(birth_date)
+        self.enrollment_date = enrollment_date if isinstance(enrollment_date, date) else date.fromisoformat(enrollment_date)
+        self.class_name = class_name
+        self._validation_errors = []
+        self._validate_height()
+        self._validate_date()
+        self._validate_name()
+
+    def _validate_height(self) -> None:
+        if not (50 <= self.height <= 250):
+            self._validation_errors.append(f"身高{self.height}cm超出合理范围")
+
+    def _validate_name(self) -> None:
+        if not (2 <= len(self.name) <= 20) or not self.name.isprintable():
+            self._validation_errors.append("姓名长度需在2-20个字符之间且为可打印字符")
+        if not self.name.isprintable():
+            self._validation_errors.append("姓名长度需在2-20个字符之间")
+
+    def _validate_date(self) -> None:
+        today = date.today()
+        if self.birth_date > today:
+            self._validation_errors.append('出生日期不能在未来')
+        if self.enrollment_date > today:
+            self._validation_errors.append('入学日期不能在未来')
+        if self.birth_date > self.enrollment_date:
+            self._validation_errors.append('入学日期不能早于出生日期')
+
+    @property
+    def is_valid(self) -> bool:
+        return len(self._validation_errors) == 0
+
+    def get_errors(self) -> list[str]:
+        return self._validation_errors.copy()
+
+    def __eq__(self, other) -> bool:
+        if not isinstance(other, Student):
+            return NotImplemented
+        return (self.sid == other.sid and
+                self.name == other.name and
+                self.height == other.height and
+                self.birth_date == other.birth_date and
+                self.enrollment_date == other.enrollment_date and
+                self.class_name == other.class_name
+                )
+
+    @classmethod
+    def from_dict(cls, data: dict) -> 'Student':
+        birth_date = data['birth_date'] if isinstance(data['birth_date'], date) else date.fromisoformat(
+            data['birth_date'])
+        enrollment_date = data['enrollment_date'] if isinstance(data['enrollment_date'], date) else date.fromisoformat(
+            data['enrollment_date'])
+        return cls(
+            sid=data['sid'],
+            name=data['name'].strip(),
+            height=data['height'],
+            birth_date=birth_date,
+            enrollment_date=enrollment_date,
+            class_name=data['class_name']
+        )
+
+    def to_dict(self):
+        return {
+                'sid': self.sid,
+                'name': self.name,
+                'height': self.height,
+                'birth_date': self.birth_date.isoformat(),
+                'enrollment_date': self.enrollment_date.isoformat(),
+                'class_name': self.class_name
+            }
+
+    def __repr__(self) -> str:
+        return (
+            f"{self.__class__.__name__}("
+            f"sid='{self.sid}', "
+            f"name='{self.name}',"
+            f"height={self.height},"
+            f"birth_date=date({self.birth_date.year},{self.birth_date.month},{self.birth_date.day}), "
+            f"enrollment_date=date({self.enrollment_date.year},{self.enrollment_date.month},{self.enrollment_date.day}), "
+            f"class_name='{self.class_name}'"
+            f")"
+        )
+
+

studentui.py

@@ -0,0 +1,172 @@
+import os
+import re
+from datetime import date
+from bll.student_bll import StudentBLL
+from dal.student_dal_json import StudentDAL
+from model.Student import Student
+from dal.student_dal_json import StudentDALJSON  # 确保导入
+
+class StudentUI:
+    def __init__(self):
+        current_dir = os.path.dirname(os.path.abspath(__file__))
+        parent_dir = os.path.dirname(current_dir)
+        file_path = os.path.join(parent_dir, "data", "student.json")
+        dal = StudentDAL(file_path)
+        self.bll = StudentBLL(dal)
+        self.file_path = file_path
+
+
+
+    def display_menu(self):
+        """显示主菜单"""
+        os.system('cls' if os.name == 'nt' else 'clear')
+        print("*" * 50)
+        print("           学生信息管理系统 - 主菜单           ")
+        print("*" * 50)
+        print("1. 添加学生信息")
+        print("2. 删除学生信息")
+        print("3. 更新学生信息")
+        print("4. 查询学生信息")
+        print("5. 统计分析")
+        print("6. 数据导入导出")
+        print("7. 清空所有学生信息")
+        print("0. 退出系统")
+        print("*" * 50)
+
+    def display_query_menu(self):
+        """显示查询子菜单"""
+        os.system('cls' if os.name == 'nt' else 'clear')
+        print("*" * 50)
+        print("              学生信息管理系统 - 查询菜单              ")
+        print("*" * 50)
+        print("1. 查询所有学生")
+        print("2. 按身份证号查询")
+        print("3. 按学号查询")
+        print("4. 按姓名查询")
+        print("5. 按班级查询")
+        print("0. 返回上一级")
+        print("*" * 50)
+
+    def display_stats_menu(self):
+        """显示统计分析子菜单"""
+        os.system('cls' if os.name == 'nt' else 'clear')
+        print("*" * 50)
+        print("              学生信息管理系统 - 统计分析菜单              ")
+        print("*" * 50)
+        print("1. 学生总数")
+        print("2. 平均身高")
+        print("3. 按身高范围统计")
+        print("4. 按入学年份统计")
+        print("5. 按年龄范围统计")
+        print("0. 返回上一级")
+        print("*" * 50)
+
+    def display_import_export_menu(self):
+        """显示数据导入导出子菜单"""
+        os.system('cls' if os.name == 'nt' else 'clear')
+        print("*" * 50)
+        print("              学生信息管理系统 - 数据导入导出菜单              ")
+        print("*" * 50)
+        print("1. 导出数据到JSON")
+        print("2. 从JSON导入数据")
+        print("3. 导出数据到CSV")
+        print("4. 从CSV导入数据")
+        print("0. 返回上一级")
+        print("*" * 50)
+
+    def get_input(self, prompt: str) -> str:
+        """获取用户输入，添加异常处理"""
+        try:
+            return input(prompt).strip()
+        except EOFError:
+            return "0"  # 按Ctrl+D视为退出
+
+    def add_student(self):
+        """添加学生信息"""
+        os.system('cls' if os.name == 'nt' else 'clear')
+        print("*" * 50)
+        print("                    添加学生信息                    ")
+        print("*" * 50)
+
+        name = self.get_input("请输入姓名: ")
+        id_number = self.get_input("请输入身份证号: ")
+        while not re.match(r'^\d{17}[\dXx]$', id_number):
+            print("身份证号格式不正确，请输入 18 位身份证号。")
+            id_number = self.get_input("请输入身份证号: ")
+
+        while True:
+            student_id = self.get_input("请输入学号: ")
+            if re.match(r'^\d{10,15}$', student_id):  # 假设学号是10 - 15位数字
+                break
+            print("学号格式不正确，请输入10到15位数字")
+
+        gender = self.get_input("请输入性别(男/女): ")
+
+        while True:
+            try:
+                height = float(self.get_input("请输入身高(cm): "))
+                if height <= 0 or height > 250:
+                    raise ValueError
+                break
+            except ValueError:
+                print("身高必须为0到250之间的有效数值，请重新输入")
+
+        while True:
+            try:
+                weight = float(self.get_input("请输入体重(kg): "))
+                if weight <= 0 or weight > 500:
+                    raise ValueError
+                break
+            except ValueError:
+                print("体重必须为0到500之间的有效数值，请重新输入")
+
+        # 从身份证号中提取出生日期
+        birth_date_str = id_number[6:14]
+        birth_date = date(int(birth_date_str[:4]), int(birth_date_str[4:6]), int(birth_date_str[6:]))
+
+        # 修改后的日期输入验证
+        while True:
+            enrollment_date = self.get_input("请输入入学日期(YYYY-MM-DD): ")
+            try:
+                enrollment_date_obj = date.fromisoformat(enrollment_date)
+                break
+            except ValueError:
+                print("日期格式错误，请使用 YYYY-MM-DD 格式（例如：2023-09-01）")
+
+        class_name = self.get_input("请输入班级: ")
+        major = self.get_input("请输入专业: ")
+
+        # 创建 Student 对象
+        try:
+            student = Student(
+                sid=student_id,
+                name=name,
+                height=height,
+                birth_date=birth_date,  # 使用从身份证提取的出生日期
+                enrollment_date=enrollment_date_obj,
+                class_name=class_name
+            )
+            if self.bll.add_student(student):
+                print("学生信息添加成功！")
+            else:
+                print("学生信息添加失败。")
+        except ValueError as e:
+            print(f"添加学生失败: {e}")
+
+    def handle_import_export(self, choice):
+        if choice == '1':
+            file_path = self.get_input("请输入要导出的 JSON 文件路径: ")
+            self.bll.dal.export_to_json(file_path)
+            print("数据导出到 JSON 成功！")
+        elif choice == '2':
+            file_path = self.get_input("请输入要导入的 JSON 文件路径: ")
+            self.bll.dal.import_from_json(file_path)
+            print("数据从 JSON 导入成功！")
+        elif choice == '3':
+            file_path = self.get_input("请输入要导出的 CSV 文件路径: ")
+            self.bll.dal.export_to_csv(file_path)
+            print("数据导出到 CSV 成功！")
+        elif choice == '4':
+            file_path = self.get_input("请输入要导入的 CSV 文件路径: ")
+            self.bll.dal.import_from_csv(file_path)
+            print("数据从 CSV 导入成功！")