diff --git a/front/package-lock.json b/front/package-lock.json index 732b9a4..8c24cc8 100644 --- a/front/package-lock.json +++ b/front/package-lock.json @@ -11,6 +11,7 @@ "axios": "^1.13.2", "echarts": "^6.0.0", "element-plus": "^2.11.8", + "file-saver": "^2.0.5", "vue": "^3.5.24", "vue-echarts": "^8.0.1", "xlsx": "^0.18.5" @@ -1519,6 +1520,12 @@ } } }, + "node_modules/file-saver": { + "version": "2.0.5", + "resolved": "https://registry.npmjs.org/file-saver/-/file-saver-2.0.5.tgz", + "integrity": "sha512-P9bmyZ3h/PRG+Nzga+rbdI4OEpNDzAVyy74uVO9ATgzLK6VtAsYybF/+TOCvrc0MO793d6+42lLyZTw7/ArVzA==", + "license": "MIT" + }, "node_modules/follow-redirects": { "version": "1.15.11", "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.11.tgz", diff --git a/front/package.json b/front/package.json index 291251c..57a5608 100644 --- a/front/package.json +++ b/front/package.json @@ -12,6 +12,7 @@ "axios": "^1.13.2", "echarts": "^6.0.0", "element-plus": "^2.11.8", + "file-saver": "^2.0.5", "vue": "^3.5.24", "vue-echarts": "^8.0.1", "xlsx": "^0.18.5" diff --git a/front/src/App.vue b/front/src/App.vue index 8cca2bb..af6b2a2 100644 --- a/front/src/App.vue +++ b/front/src/App.vue @@ -1,105 +1,44 @@ - - - - \ No newline at end of file +onMounted(fetchAllData); + \ No newline at end of file diff --git a/front/src/components/Leaderboard.vue b/front/src/components/Leaderboard.vue index fbb7383..10f552e 100644 --- a/front/src/components/Leaderboard.vue +++ b/front/src/components/Leaderboard.vue @@ -1,6 +1,7 @@ + @@ -9,69 +10,42 @@ import { use } from 'echarts/core'; import { CanvasRenderer } from 'echarts/renderers'; import { BarChart } from 'echarts/charts'; -import { - TitleComponent, - TooltipComponent, - GridComponent, -} from 'echarts/components'; +import { TitleComponent, TooltipComponent, GridComponent } from 'echarts/components'; import VChart from "vue-echarts"; import { computed } from 'vue'; -use([ - CanvasRenderer, - BarChart, - TitleComponent, - TooltipComponent, - GridComponent, -]); +use([CanvasRenderer, BarChart, TitleComponent, TooltipComponent, GridComponent]); const props = defineProps({ - students: { - type: Array, - required: true - } + topStudents: { type: Array, required: true } }); const chartOption = computed(() => { - const sortedStudents = [...props.students].sort((a, b) => b.points - a.points); - const topStudents = sortedStudents.slice(0, 10); - + const studentData = props.topStudents; return { - tooltip: { - trigger: 'axis', - axisPointer: { type: 'shadow' } - }, - grid: { - left: '3%', right: '4%', bottom: '3%', - containLabel: true - }, + tooltip: { trigger: 'axis', axisPointer: { type: 'shadow' } }, + grid: { left: '3%', right: '4%', bottom: '3%', containLabel: true }, xAxis: { type: 'value', boundaryGap: [0, 0.01], - // 【新增点】调整坐标轴样式以适应深色背景 axisLabel: { color: '#fff' }, splitLine: { lineStyle: { color: 'rgba(255, 255, 255, 0.2)' } } }, yAxis: { type: 'category', - data: topStudents.map(s => s.name).reverse(), - axisLabel: { color: '#fff' } // 调整坐标轴样式 + data: studentData.map(s => s.name).reverse(), + axisLabel: { color: '#fff' } }, series: [ { name: '积分', type: 'bar', - data: topStudents.map(s => s.points).reverse(), - // 【修改点】为柱状图添加漂亮的渐变色 + data: studentData.map(s => s.points).reverse(), itemStyle: { borderRadius: [0, 5, 5, 0], color: { - type: 'linear', - x: 0, y: 0, x2: 1, y2: 0, - colorStops: [ - { offset: 0, color: '#23d5ab' }, - { offset: 1, color: '#23a6d5' } - ] + type: 'linear', x: 0, y: 0, x2: 1, y2: 0, + colorStops: [{ offset: 0, color: '#23d5ab' }, { offset: 1, color: '#23a6d5' }] } } } @@ -81,7 +55,5 @@ const chartOption = computed(() => { \ No newline at end of file diff --git a/front/src/components/RollCall.vue b/front/src/components/RollCall.vue index 4253378..ef85456 100644 --- a/front/src/components/RollCall.vue +++ b/front/src/components/RollCall.vue @@ -1,9 +1,10 @@ + - \ No newline at end of file diff --git a/front/src/components/StudentManager.vue b/front/src/components/StudentManager.vue index c270623..f146e0c 100644 --- a/front/src/components/StudentManager.vue +++ b/front/src/components/StudentManager.vue @@ -1,72 +1,68 @@ + \ No newline at end of file diff --git a/front/src/services/apiService.js b/front/src/services/apiService.js index d807429..5aae4e3 100644 --- a/front/src/services/apiService.js +++ b/front/src/services/apiService.js @@ -1,60 +1,74 @@ import axios from 'axios'; +import { ElMessage } from 'element-plus'; +import { saveAs } from 'file-saver'; -// --- MOCK DATA --- -// This data simulates what our backend database would store. -let mockStudents = [ - { id: '2024001', name: '张三', major: '软件工程', points: 5, callCount: 2 }, - { id: '2024002', name: '李四', major: '软件工程', points: 8, callCount: 3 }, - { id: '2024003', name: '王五', major: '计算机科学', points: 2, callCount: 1 }, - { id: '2024004', name: '赵六', major: '网络工程', points: 10, callCount: 4 }, -]; - -/** - * Simulates network delay. - * @param {number} ms - Milliseconds to wait. - */ -const sleep = (ms) => new Promise(resolve => setTimeout(resolve, ms)); +// --- 辅助函数：用于命名风格转换（后端snake_case -> 前端camelCase）--- +const toCamel = (s) => s.replace(/([-_][a-z])/ig, ($1) => $1.toUpperCase().replace('_', '')); +const isObject = (o) => o === Object(o) && !Array.isArray(o) && typeof o !== 'function'; +const keysToCamel = (o) => { + if (isObject(o)) { + const n = {}; + Object.keys(o).forEach((k) => { n[toCamel(k)] = keysToCamel(o[k]); }); + return n; + } else if (Array.isArray(o)) { + return o.map((i) => keysToCamel(i)); + } + return o; +}; -// --- MOCK API FUNCTIONS --- -// These functions mimic the behavior of real API calls. +// --- Axios 实例配置 --- +const apiClient = axios.create({ + baseURL: 'http://127.0.0.1:5000/api', + headers: { 'Content-Type': 'application/json' }, +}); -export const studentApi = { - /** - * Fetches the list of all students. - * In the future, this will be: return axios.get('/api/students'); - */ - getStudents: async () => { - console.log("API: Fetching all students..."); - await sleep(500); // Simulate network latency - return { data: [...mockStudents] }; // Return a copy - }, - - /** - * Updates a specific student's data. - * @param {object} studentData - The student object with updated info. - * In the future, this will be: return axios.put(`/api/students/${studentData.id}`, studentData); - */ - updateStudent: async (studentData) => { - console.log(`API: Updating student ${studentData.id}...`, studentData); - await sleep(300); - const index = mockStudents.findIndex(s => s.id === studentData.id); - if (index !== -1) { - mockStudents[index] = studentData; - return { data: { ...studentData } }; // Return a copy +// --- 响应拦截器 --- +apiClient.interceptors.response.use( + (response) => { + if (response.data.code === 200) { + return keysToCamel(response.data.data); } else { - throw new Error("Student not found!"); + ElMessage.error(response.data.msg || '操作失败'); + return Promise.reject(response.data); } }, + (error) => { + const msg = error.response?.data?.msg || '网络请求失败，请检查服务器'; + ElMessage.error(msg); + return Promise.reject(error); + } +); - /** - * Imports a new list of students, replacing the old one. - * @param {Array} newStudents - Array of new student objects. - * In the future, this will be: return axios.post('/api/students/import', newStudents); - */ - importStudents: async (newStudents) => { - console.log("API: Importing new students..."); - await sleep(400); - mockStudents = newStudents; - return { data: [...mockStudents] }; +export const api = { + getStudents: () => apiClient.get('/student/rank'), + getTopNStudents: (n) => apiClient.get(`/student/rank/top/${n}`), + randomRollCall: () => apiClient.get('/rollcall/random'), + sequentialRollCall: () => apiClient.get('/rollcall/order'), + importStudents: (file) => { + const formData = new FormData(); + formData.append('file', file); + return apiClient.post('/student/import', formData, { headers: { 'Content-Type': 'multipart/form-data' } }); + }, + updateStudentPoints: (studentId, payload) => { + const backendPayload = { + student_id: studentId, + is_answer: payload.isAnswer, + repeat_question: payload.repeatQuestion, + answer_correct_level: payload.answerCorrectLevel + }; + return apiClient.post('/student/update-points', backendPayload); + }, + exportStudentDetails: async () => { + try { + const response = await axios({ + url: 'http://127.0.0.1:5000/api/student/export', + method: 'GET', + responseType: 'blob', + }); + return response.data; + } catch (error) { + ElMessage.error('导出失败'); + return Promise.reject(error); + } } }; \ No newline at end of file diff --git a/rollcall_backend/app.py b/rollcall_backend/app.py new file mode 100644 index 0000000..f5e3cf1 --- /dev/null +++ b/rollcall_backend/app.py @@ -0,0 +1,432 @@ +from flask import Flask, request, jsonify, send_file +from flask_sqlalchemy import SQLAlchemy +import pandas as pd +import random +from datetime import datetime +import os +from sqlalchemy import desc +import math +from flask_cors import CORS + +# ---------------------- 1. 应用初始化（核心修改：适配db4free在线MySQL） ---------------------- +app = Flask(__name__) +CORS(app) + +# ---------------------- 关键配置：替换为你的db4free账号信息 ---------------------- +DB_USER = 'bagood' +DB_PASSWORD = 'czb098221' +DB_NAME = 'rollcall_db' +DB_HOST = 'db4free.net' +DB_PORT = 3306 +# 配置db4free在线MySQL连接（核心修改部分） +app.config['SQLALCHEMY_DATABASE_URI'] = f'mysql+pymysql://{DB_USER}:{DB_PASSWORD}@{DB_HOST}:{DB_PORT}/{DB_NAME}' +app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False + +# db4free专属适配配置（解决连接超时/断开问题） +app.config['SQLALCHEMY_ENGINE_OPTIONS'] = { + 'pool_size': 10, # 连接池大小（适配db4free并发限制） + 'pool_recycle': 180, # 3分钟回收连接（db4free空闲连接10分钟自动断开） + 'pool_pre_ping': True, # 执行查询前检测连接，无效则自动重连 + 'connect_args': { + 'charset': 'utf8mb4', # 支持中文和特殊字符 + 'connect_timeout': 10, # 连接超时时间（10秒） + 'read_timeout': 15, # 读取超时时间（15秒） + 'write_timeout': 15 # 写入超时时间（15秒） + } +} + +db = SQLAlchemy(app) + +# 临时文件存储路径（用于Excel导出） +EXPORT_DIR = 'exports' +os.makedirs(EXPORT_DIR, exist_ok=True) + +# ---------------------- 2. 数据库模型设计（无修改，兼容MySQL） ---------------------- +class Student(db.Model): + """学生表：存储学生基础信息与积分""" + __tablename__ = 'students' + id = db.Column(db.Integer, primary_key=True, autoincrement=True) + student_id = db.Column(db.String(20), unique=True, nullable=False, comment='学号') + name = db.Column(db.String(20), nullable=False, comment='姓名') + major = db.Column(db.String(50), nullable=False, comment='专业') + points = db.Column(db.Float, default=0.0, comment='总积分') + call_count = db.Column(db.Integer, default=0, comment='被点名次数') + create_time = db.Column(db.DateTime, default=datetime.now, comment='创建时间') + +class RollCallRecord(db.Model): + """点名记录表：存储每次点名详情""" + __tablename__ = 'roll_call_records' + id = db.Column(db.Integer, primary_key=True, autoincrement=True) + student_id = db.Column(db.String(20), db.ForeignKey('students.student_id'), nullable=False, comment='学号') + call_mode = db.Column(db.String(10), nullable=False, comment='点名模式：random/order') + call_time = db.Column(db.DateTime, default=datetime.now, comment='点名时间') + is_answer = db.Column(db.Boolean, default=False, comment='是否回答问题') + repeat_question = db.Column(db.Boolean, nullable=True, comment='是否准确重复问题') + answer_correct = db.Column(db.Boolean, nullable=True, comment='回答是否正确') + point_change = db.Column(db.Float, default=0.0, comment='本次积分变化') + +class PointRule(db.Model): + """积分规则表：可灵活配置积分规则（避免硬编码）""" + __tablename__ = 'point_rules' + id = db.Column(db.Integer, primary_key=True, autoincrement=True) + rule_type = db.Column(db.String(30), unique=True, nullable=False, comment='规则类型') + point_value = db.Column(db.Float, nullable=False, comment='对应分值') + description = db.Column(db.String(100), comment='规则描述') + +# ---------------------- 3. 初始化数据库表与默认规则（无修改，兼容MySQL） ---------------------- +def init_db(): + with app.app_context(): + db.create_all() # 自动创建所有表（首次运行时执行） + # 插入默认积分规则（若不存在） + default_rules = [ + ('attend_call', 1.0, '到课被点到加分'), + ('repeat_correct', 0.5, '准确重复问题加分'), + ('repeat_incorrect', -1.0, '未准确重复问题扣分'), + ('answer_correct_low', 0.5, '回答正确（基础分）'), + ('answer_correct_mid', 1.5, '回答正确（中等分）'), + ('answer_correct_high', 3.0, '回答正确（高分）') + ] + for rule_type, point_value, desc in default_rules: + if not PointRule.query.filter_by(rule_type=rule_type).first(): + new_rule = PointRule(rule_type=rule_type, point_value=point_value, description=desc) + db.session.add(new_rule) + db.session.commit() + print("数据库初始化完成！数据已存储到db4free在线MySQL中") + +# ---------------------- 4. 工具函数（无修改，逻辑不变） ---------------------- +def get_point_rule(rule_type): + """获取指定类型的积分规则分值""" + rule = PointRule.query.filter_by(rule_type=rule_type).first() + return rule.point_value if rule else 0.0 + +def calculate_random_weight(students): + """计算随机点名权重：积分越高，权重越低（权重=1/(积分+1)）""" + total_weight = sum(1/(student.points + 1) for student in students) + weights = [(1/(s.points + 1))/total_weight for s in students] + return weights + +# ---------------------- 5. 核心接口（无修改，所有功能保持不变） ---------------------- +@app.route('/api/student/import', methods=['POST']) +def import_students(): + """导入学生信息（Excel文件）- 支持.xlsx格式，含格式校验""" + if 'file' not in request.files: + return jsonify({'code': 400, 'msg': '未上传文件'}), 400 + + file = request.files['file'] + try: + if not file.filename.endswith('.xlsx'): + return jsonify({'code': 400, 'msg': '仅支持.xlsx格式的Excel文件，请将文件另存为.xlsx后上传'}), 400 + + df = pd.read_excel(file, engine='openpyxl', dtype=str) + df = df.dropna(how='all') + + required_cols = ['学号', '姓名', '专业'] + if not all(col in df.columns for col in required_cols): + missing_cols = [col for col in required_cols if col not in df.columns] + return jsonify({'code': 400, 'msg': f'Excel缺少必填列：{", ".join(missing_cols)}（表头必须严格为「学号、姓名、专业」）'}), 400 + + success_count = 0 + fail_count = 0 + fail_msg = [] + + existing_student_ids = [s.student_id for s in Student.query.with_entities(Student.student_id).all()] + + for idx, row in df.iterrows(): + student_id = str(row['学号']).strip() if pd.notna(row['学号']) else '' + name = str(row['姓名']).strip() if pd.notna(row['姓名']) else '' + major = str(row['专业']).strip() if pd.notna(row['专业']) else '' + + if not student_id or not name or not major: + fail_count += 1 + fail_msg.append(f'第{idx+1}行：存在空数据，跳过') + continue + + if not student_id.isdigit() or len(student_id) != 9: + fail_count += 1 + fail_msg.append(f'第{idx+1}行：学号{student_id}格式错误（需9位数字），跳过') + continue + + if student_id in existing_student_ids: + fail_count += 1 + fail_msg.append(f'第{idx+1}行：学号{student_id}已存在，跳过') + continue + + new_student = Student(student_id=student_id, name=name, major=major) + db.session.add(new_student) + success_count += 1 + existing_student_ids.append(student_id) + + db.session.commit() + + return jsonify({ + 'code': 200, + 'msg': f'导入完成！成功导入{success_count}条，失败{fail_count}条', + 'data': { + 'success_count': success_count, + 'fail_count': fail_count, + 'fail_msg': fail_msg + } + }), 200 + + except Exception as e: + db.session.rollback() + error_msg = str(e) + # db4free专属错误提示 + if 'Lost connection' in error_msg or '10060' in error_msg or '10061' in error_msg: + return jsonify({'code': 500, 'msg': 'db4free连接超时/失败！建议：1. 检查账号密码/数据库名是否正确；2. 1分钟后重试；3. 检查网络是否稳定'}), 500 + return jsonify({'code': 500, 'msg': f'导入失败：{error_msg}'}), 500 + +@app.route('/api/rollcall/random', methods=['GET']) +def random_rollcall(): + """随机点名（按积分权重）""" + try: + students = Student.query.all() + if not students: + return jsonify({'code': 400, 'msg': '暂无学生信息，请先导入'}), 400 + + weights = calculate_random_weight(students) + selected_student = random.choices(students, weights=weights, k=1)[0] + + new_record = RollCallRecord( + student_id=selected_student.student_id, + call_mode='random', + is_answer=False, + point_change=get_point_rule('attend_call') + ) + + selected_student.call_count += 1 + selected_student.points = round(selected_student.points + new_record.point_change, 1) + + db.session.add(new_record) + db.session.commit() + + return jsonify({ + 'code': 200, + 'msg': '随机点名成功', + 'data': { + 'student_id': selected_student.student_id, + 'name': selected_student.name, + 'major': selected_student.major, + 'current_points': selected_student.points, + 'call_count': selected_student.call_count, + 'call_time': new_record.call_time.strftime('%Y-%m-%d %H:%M:%S') + } + }), 200 + + except Exception as e: + db.session.rollback() + error_msg = str(e) + if 'Lost connection' in error_msg: + return jsonify({'code': 500, 'msg': 'db4free连接超时，请1分钟后重试'}), 500 + return jsonify({'code': 500, 'msg': f'点名失败：{error_msg}'}), 500 + +@app.route('/api/rollcall/order', methods=['GET']) +def order_rollcall(): + """顺序点名（按学号升序循环）""" + try: + last_record = RollCallRecord.query.filter_by(call_mode='order').order_by(desc('call_time')).first() + + students = Student.query.order_by(Student.student_id).all() + if not students: + return jsonify({'code': 400, 'msg': '暂无学生信息，请先导入'}), 400 + + if not last_record: + selected_student = students[0] + else: + last_index = next((i for i, s in enumerate(students) if s.student_id == last_record.student_id), -1) + selected_student = students[(last_index + 1) % len(students)] + + new_record = RollCallRecord( + student_id=selected_student.student_id, + call_mode='order', + is_answer=False, + point_change=get_point_rule('attend_call') + ) + + selected_student.call_count += 1 + selected_student.points = round(selected_student.points + new_record.point_change, 1) + + db.session.add(new_record) + db.session.commit() + + return jsonify({ + 'code': 200, + 'msg': '顺序点名成功', + 'data': { + 'student_id': selected_student.student_id, + 'name': selected_student.name, + 'major': selected_student.major, + 'current_points': selected_student.points, + 'call_count': selected_student.call_count, + 'call_time': new_record.call_time.strftime('%Y-%m-%d %H:%M:%S') + } + }), 200 + + except Exception as e: + db.session.rollback() + error_msg = str(e) + if 'Lost connection' in error_msg: + return jsonify({'code': 500, 'msg': 'db4free连接超时，请1分钟后重试'}), 500 + return jsonify({'code': 500, 'msg': f'点名失败：{error_msg}'}), 500 + +@app.route('/api/student/update-points', methods=['POST']) +def update_student_points(): + """更新学生积分（回答问题后）""" + data = request.json + required_fields = ['student_id', 'is_answer', 'repeat_question', 'answer_correct_level'] + if not all(field in data for field in required_fields): + return jsonify({'code': 400, 'msg': '缺少必填参数（student_id/is_answer/repeat_question/answer_correct_level）'}), 400 + + try: + student = Student.query.filter_by(student_id=data['student_id']).first() + if not student: + return jsonify({'code': 404, 'msg': '学生不存在'}), 404 + + last_record = RollCallRecord.query.filter_by( + student_id=data['student_id'], + is_answer=False + ).order_by(desc('call_time')).first() + + if not last_record: + return jsonify({'code': 400, 'msg': '无未完成的点名记录（需先点名再更新积分）'}), 400 + + point_change = last_record.point_change + if data['is_answer']: + if data['repeat_question']: + point_change += get_point_rule('repeat_correct') + else: + point_change += get_point_rule('repeat_incorrect') + + level_map = { + 'low': 'answer_correct_low', + 'mid': 'answer_correct_mid', + 'high': 'answer_correct_high' + } + rule_type = level_map.get(data['answer_correct_level'], 'answer_correct_low') + point_change += get_point_rule(rule_type) + + points_to_add = point_change - last_record.point_change + student.points = round(student.points + points_to_add, 1) + + last_record.is_answer = data['is_answer'] + last_record.repeat_question = data['repeat_question'] + last_record.answer_correct = (data['answer_correct_level'] != 'none') if data['is_answer'] else None + last_record.point_change = point_change + + db.session.commit() + + return jsonify({ + 'code': 200, + 'msg': '积分更新成功', + 'data': { + 'student_id': student.student_id, + 'name': student.name, + 'current_points': student.points, + 'total_point_change': round(point_change, 1) + } + }), 200 + + except Exception as e: + db.session.rollback() + error_msg = str(e) + if 'Lost connection' in error_msg: + return jsonify({'code': 500, 'msg': 'db4free连接超时，请1分钟后重试'}), 500 + return jsonify({'code': 500, 'msg': f'积分更新失败：{error_msg}'}), 500 + +@app.route('/api/student/rank', methods=['GET']) +def get_student_rank(): + """获取学生积分排名（全量）""" + try: + students = Student.query.order_by(desc(Student.points)).all() + rank_list = [ + { + 'rank': i+1, + 'student_id': s.student_id, + 'name': s.name, + 'major': s.major, + 'points': round(s.points, 1), + 'call_count': s.call_count + } for i, s in enumerate(students) + ] + return jsonify({ + 'code': 200, + 'msg': '排名查询成功', + 'data': rank_list + }), 200 + except Exception as e: + error_msg = str(e) + if 'Lost connection' in error_msg: + return jsonify({'code': 500, 'msg': 'db4free连接超时，请1分钟后重试'}), 500 + return jsonify({'code': 500, 'msg': f'排名查询失败：{error_msg}'}), 500 + +@app.route('/api/student/rank/top/', methods=['GET']) +def get_top_student_rank(top_n): + """获取积分最高的top_n名学生（前端可视化专用）""" + try: + top_students = Student.query.order_by(desc(Student.points)).limit(top_n).all() + + if not top_students: + return jsonify({'code': 400, 'msg': '暂无学生信息，请先导入'}), 400 + + rank_list = [] + for idx, student in enumerate(top_students): + random_call_count = RollCallRecord.query.filter_by( + student_id=student.student_id, + call_mode='random' + ).count() + + rank_list.append({ + 'rank': idx + 1, + 'student_id': student.student_id, + 'name': student.name, + 'major': student.major, + 'points': round(student.points, 1), + 'call_count': student.call_count, + 'random_call_count': random_call_count + }) + + return jsonify({ + 'code': 200, + 'msg': f'获取Top{top_n}积分排名成功', + 'data': rank_list + }), 200 + + except Exception as e: + error_msg = str(e) + if 'Lost connection' in error_msg: + return jsonify({'code': 500, 'msg': 'db4free连接超时，请1分钟后重试'}), 500 + return jsonify({'code': 500, 'msg': f'Top{top_n}排名查询失败：{error_msg}'}), 500 + +@app.route('/api/student/export', methods=['GET']) +def export_student_points(): + """导出积分详单（Excel）""" + try: + students = Student.query.order_by(desc(Student.points)).all() + export_data = [ + { + '学号': s.student_id, + '姓名': s.name, + '专业': s.major, + '随机点名次数': len(RollCallRecord.query.filter_by(student_id=s.student_id, call_mode='random').all()), + '总点名次数': s.call_count, + '总积分': round(s.points, 1) + } for s in students + ] + + df = pd.DataFrame(export_data) + export_filename = f'积分详单_{datetime.now().strftime("%Y%m%d%H%M%S")}.xlsx' + export_path = os.path.join(EXPORT_DIR, export_filename) + df.to_excel(export_path, index=False, engine='openpyxl') + + return send_file(export_path, as_attachment=True, download_name=export_filename) + + except Exception as e: + error_msg = str(e) + if 'Lost connection' in error_msg: + return jsonify({'code': 500, 'msg': 'db4free连接超时，请1分钟后重试'}), 500 + return jsonify({'code': 500, 'msg': f'导出失败：{error_msg}'}), 500 + +# ---------------------- 6. 启动入口（无修改） ---------------------- +if __name__ == '__main__': + init_db() # 首次运行自动创建表和默认规则（db4free云端） + app.run(host='0.0.0.0', port=5000, debug=True) \ No newline at end of file diff --git a/rollcall_backend/exports/积分详单_20251122002433.xlsx b/rollcall_backend/exports/积分详单_20251122002433.xlsx new file mode 100644 index 0000000..f420dd7 Binary files /dev/null and b/rollcall_backend/exports/积分详单_20251122002433.xlsx differ diff --git a/rollcall_backend/exports/积分详单_20251122111015.xlsx b/rollcall_backend/exports/积分详单_20251122111015.xlsx new file mode 100644 index 0000000..b3b24b2 Binary files /dev/null and b/rollcall_backend/exports/积分详单_20251122111015.xlsx differ diff --git a/rollcall_backend/exports/积分详单_20251122113527.xlsx b/rollcall_backend/exports/积分详单_20251122113527.xlsx new file mode 100644 index 0000000..d080b88 Binary files /dev/null and b/rollcall_backend/exports/积分详单_20251122113527.xlsx differ diff --git a/rollcall_backend/requirements.txt b/rollcall_backend/requirements.txt new file mode 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