简介
使用工具：
注：制作重点在网页端，因此网页端的功能更全
WEB界面展示:
系统登录分为管理员，老师，学生3部分
管理员统一管理所有的账号信息以及登录信息
老师管理，添加，修改班级，学生的成绩信息
学生只能查看成绩信息，不能做出修改
PYQT界面展示：
数据库创建：
项目目录
Project-
- PYQT # 存放软件端的代码文件（运行login.py启动程序）
- static # 存放静态资源（图片等）
- templates # 存放网页端的代码
- app.py # 启动网页端系统
- student.sql # 数据库文件
代码
简单放一个登录的代码
from flask import Flask, jsonify, render_template, request, redirect, url_for, session
import mysql.connector
import matplotlib.pyplot as plt
import pandas as pd
import matplotlib
matplotlib.use('agg')
from matplotlib.font_manager import FontProperties
from io import BytesIO
import base64
from flask import render_template_string
import os
from datetime import datetime
from collections import defaultdict
# 预设字体格式，并传给rc方法
font = {'family': 'SimHei', "size": 12}
matplotlib.rc('font', **font) # 一次定义终身使用
# Set font properties for Chinese characters
font_prop = FontProperties(fname=r'C:\Windows\Fonts\simhei.ttf', size=12)
app = Flask(__name__)
app.secret_key = 'your_secret_key' # Change this to a secure secret key
# Replace these placeholders with your database connection details
DB_HOST = 'localhost'
DB_USER = 'root'
DB_PASSWORD = '123456'
DB_DATABASE = 'Student'
def connect_to_database():
try:
connection = mysql.connector.connect(
host=DB_HOST,
user=DB_USER,
password=DB_PASSWORD,
database=DB_DATABASE
)
return connection
except mysql.connector.Error as err:
print(f"Error: {err}")
return None
def save_login_record(connection, role, a***ount):
try:
cursor = connection.cursor()
login_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
query = f"INSERT INTO login_record (role, a***ount, login_time) VALUES ('{role}', '{a***ount}', '{login_time}')"
cursor.execute(query)
connection.***mit()
except mysql.connector.Error as err:
print(f"Error: {err}")
finally:
cursor.close()
def check_admin_login(connection, table_name, a***ount, password, role):
try:
if role == '管理员':
table_name = 'admin'
cursor = connection.cursor()
print(table_name,a***ount,password,role)
query = f"SELECT * FROM {table_name} WHERE Mainid='{a***ount}' AND password='{password}'"
# Implement your database query logic here
cursor.execute(query)
result = cursor.fetchone()
elif role == '老师':
table_name = 'admin_teachers'
# Check administrator login
cursor = connection.cursor()
print(table_name,a***ount,password,role)
query = f"SELECT * FROM {table_name} WHERE Teacherid='{a***ount}' AND password='{password}'"
# Implement your database query logic here
cursor.execute(query)
result = cursor.fetchone()
elif role == '学生':
table_name = 'admin_students'
# Check administrator login
cursor = connection.cursor()
print(table_name,a***ount,password,role)
query = f"SELECT * FROM {table_name} WHERE Studentid='{a***ount}' AND password='{password}'"
# Implement your database query logic here
cursor.execute(query)
result = cursor.fetchone()
if result:
# Save login record in data_8
save_login_record(connection, role, a***ount)
return bool(result)
except mysql.connector.Error as err:
print(f"Error: {err}")
return False
finally:
cursor.close()
@app.route('/')
def index():
return render_template('login.html')
@app.route('/login', methods=['POST'])
def login():
a***ount = request.form['a***ount']
password = request.form['password']
role = request.form['role']
connection = connect_to_database()
if connection is None:
return render_template('login_failed.html', message='Failed to connect to the database.')
table_name = get_table_name(role)
if check_admin_login(connection, table_name, a***ount, password, role):
session['role'] = role
if role == '学生':
session['a***ount'] = a***ount
print("===================",session['a***ount'])
return redirect(url_for('admin_dashboard'))
else:
return render_template('login_failed.html', message='Invalid username or password.')
@app.route('/admin/dashboard')
def admin_dashboard():
role = session.get('role')
if role == '管理员':
data = fetch_admin_data()
data_1 = fetch_admin_teacher_data()
data_2 = fetch_admin_student_data()
data_8 = fetch_login_records()
data_10 = populate_tree_model_10()
return render_template('admin_dashboard.html', role=role, data=data, data_1=data_1, data_2=data_2, data_8 = data_8, data_10 = data_10)
elif role == '老师':
data_2 = fetch_admin_student_data()
data_3 = populate_tree_model_2()
data_4 = populate_tree_model_6()
data_5 = populate_tree_model_4()
data_6 = populate_tree_model_7()
data_7 = populate_tree_model_5()
data_9 = populate_tree_model_9()
scatter_plot_files = show_images()
data_10 = populate_tree_model_10()
return render_template('teacher_dashboard.html',scatter_plot_files = scatter_plot_files, role=role, data_2=data_2, data_3=data_3, data_4=data_4, data_5=data_5, data_6=data_6, data_7=data_7, data_9=data_9, data_10 = data_10)
elif role == '学生':
a***ount = session.get('a***ount')
data_3 = populate_tree_model_2()
data_4 = populate_tree_model_6()
data_5 = populate_tree_model_4()
data_6 = populate_tree_model_7()
data_7 = populate_tree_model_5()
data_8 = show_info()
print("===================----------------",session['a***ount'])
return render_template('student_dashboard.html', studentID=a***ount, data_3=data_3, data_4=data_4, data_5=data_5, data_6=data_6, data_7=data_7, data_8=data_8)
else:
return redirect(url_for('index'))
# Add routes for other pages as needed
def get_table_name(role):
# Implement logic to determine the table name based on the role
if role == '管理员':
return 'admin'
elif role == '老师':
return 'admin_teachers'
elif role == '学生':
return 'admin_students'
else:
return None
def fetch_login_records():
data_8 = []
try:
connection = connect_to_database()
if connection is None:
return []
cursor = connection.cursor()
query = "SELECT * FROM login_record"
cursor.execute(query)
login_records = cursor.fetchall()
# Convert rows to a list of dictionaries
for row in login_records:
data_8.append({
'role': row[0],
'a***ount': row[1],
'login_time': row[2]
})
return data_8
except mysql.connector.Error as err:
print(f"Error: {err}")
return []
finally:
cursor.close()
if connection:
connection.close()
def fetch_admin_data():
data = []
try:
# Connect to the MySQL database
connection = mysql.connector.connect(
host='localhost',
user='root',
password='123456',
database='Student'
)
cursor = connection.cursor()
# Execute a query to fetch data from the admin table
query = "SELECT Mainid, Username, Password, Name FROM admin"
cursor.execute(query)
# Fetch all rows from the result
rows = cursor.fetchall()
# Convert rows to a list of dictionaries
for row in rows:
data.append({
'Mainid': row[0],
'Username': row[1],
'Password': row[2],
'Name': row[3]
})
except mysql.connector.Error as err:
print(f"Error: {err}")
finally:
# Close the cursor and connection
cursor.close()
connection.close()
return data
百度云链接：
链接：https://pan.baidu.***/s/13HtbUm0Wwd0RT_cY61M57A?pwd=o102
提取码：o102
--来自百度网盘超级会员V5的分享
系统可能还存在某些不完善的地方，欢迎讨论
