|
|
from flask import Flask, jsonify, request
|
|
|
import mysql.connector
|
|
|
import random
|
|
|
|
|
|
app = Flask(__name__)
|
|
|
|
|
|
# 数据库连接配置
|
|
|
db_config = {
|
|
|
'host': 'localhost',
|
|
|
'user': 'root',
|
|
|
'password': '123456',
|
|
|
'database': 'stu'
|
|
|
}
|
|
|
|
|
|
# 获取学生名单
|
|
|
def get_students():
|
|
|
try:
|
|
|
connection = mysql.connector.connect(**db_config)
|
|
|
cursor = connection.cursor(dictionary=True)
|
|
|
cursor.execute("SELECT * FROM studentlist")
|
|
|
students = cursor.fetchall()
|
|
|
connection.close()
|
|
|
return students
|
|
|
except mysql.connector.Error as err:
|
|
|
print(f"Error: {err}")
|
|
|
return []
|
|
|
|
|
|
|
|
|
# 更新学生积分
|
|
|
def update_student_score(student_id, new_score):
|
|
|
try:
|
|
|
connection = mysql.connector.connect(**db_config)
|
|
|
cursor = connection.cursor()
|
|
|
cursor.execute("UPDATE studentlist SET 积分 = %s WHERE 学号 = %s", (new_score, student_id))
|
|
|
connection.commit()
|
|
|
print(f"Updated student_id {student_id} with new score {new_score}")
|
|
|
connection.close()
|
|
|
except mysql.connector.Error as err:
|
|
|
print(f"Error: {err}")
|
|
|
|
|
|
|
|
|
# 根据积分设置权重，积分越高，权重越低
|
|
|
def calculate_weights(students):
|
|
|
max_score = max([s['积分'] for s in students])
|
|
|
weights = [(max_score - s['积分'] + 1) for s in students]
|
|
|
return weights
|
|
|
|
|
|
# 随机点名，积分越高，权重越低
|
|
|
def pick_random_student(students):
|
|
|
weights = calculate_weights(students)
|
|
|
selected_student = random.choices(students, weights=weights, k=1)[0]
|
|
|
return selected_student
|
|
|
|
|
|
# 增加课堂出席积分
|
|
|
def add_attendance_score(student):
|
|
|
student['积分'] = student['积分'] + 1
|
|
|
update_student_score(student['学号'], student['积分'])
|
|
|
|
|
|
# 回答问题后的积分更新
|
|
|
def update_answer_score(student, repeated_correctly, answer_score):
|
|
|
if repeated_correctly:
|
|
|
student['积分'] = student['积分'] + 0.5
|
|
|
else:
|
|
|
student['积分'] = student['积分'] - 1
|
|
|
|
|
|
student['积分'] += answer_score
|
|
|
update_student_score(student['学号'], student['积分'])
|
|
|
|
|
|
# 获取随机点名学生
|
|
|
@app.route('/get_random_student', methods=['GET'])
|
|
|
def get_random_student():
|
|
|
students = get_students()
|
|
|
selected_student = pick_random_student(students)
|
|
|
return jsonify({'name': selected_student['姓名'], 'student_id': selected_student['学号']})
|
|
|
|
|
|
# 更新出席积分
|
|
|
@app.route('/update_attendance_score', methods=['POST'])
|
|
|
def handle_attendance_score():
|
|
|
data = request.json
|
|
|
print(f"Received data: {data}")
|
|
|
student_id = data['student_id']
|
|
|
|
|
|
students = get_students()
|
|
|
for student in students:
|
|
|
if student['学号'] == student_id:
|
|
|
add_attendance_score(student)
|
|
|
break
|
|
|
|
|
|
return jsonify({'message': 'Attendance score updated', 'student_id': student_id})
|
|
|
|
|
|
# 更新回答问题的积分
|
|
|
@app.route('/update_answer_score', methods=['POST'])
|
|
|
def handle_answer_score():
|
|
|
data = request.json
|
|
|
print(f"Received data: {data}")
|
|
|
student_id = data['student_id']
|
|
|
repeated_correctly = data['repeated_correctly']
|
|
|
answer_score = data['answer_score'] # 前端传来的回答得分（0.5到3之间）
|
|
|
|
|
|
students = get_students()
|
|
|
for student in students:
|
|
|
if student['学号'] == student_id:
|
|
|
update_answer_score(student, repeated_correctly, answer_score)
|
|
|
break
|
|
|
|
|
|
return jsonify({'message': 'Answer score updated', 'student_id': student_id})
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
app.run(debug=True)
|
