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from flask import *
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from flask_sqlalchemy import SQLAlchemy
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import pymysql
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import os
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app = Flask(__name__)
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app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql+pymysql://root:123456@localhost:3306/file'
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db = SQLAlchemy(app)
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class User(db.Model):
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_table_ = 'user'
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id = db.Column(db.Integer, primary_key=True)
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username = db.Column(db.String(50),nullable=False)
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password = db.Column(db.String(50),nullable=False)
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def query_user(username):
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with app.app_context():
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return User.query.filter(User.username == username).first()
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def add_user(username, password):
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with app.app_context():
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user = User(username=username, password=password)
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db.session.add(user)
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db.session.commit()
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try:
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with app.app_context():
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# 尝试连接数据库
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db.create_all()
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print("数据库连接成功！")
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except Exception as e:
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print(f"数据库连接失败: {str(e)}")
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