49 lines
1.5 KiB
Python
49 lines
1.5 KiB
Python
from flask_sqlalchemy import SQLAlchemy
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from flask_migrate import Migrate
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from flask_cors import CORS
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from flask_jwt_extended import JWTManager # 确保引入了 JWTManager
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from datetime import datetime, timezone, timedelta
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import redis
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# 1. 创建扩展实例（此时未绑定具体的 App）
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db = SQLAlchemy()
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migrate = Migrate()
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cors = CORS()
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jwt = JWTManager() # 必须实例化
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# Redis 客户端 (单设备登录互踢用)
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redis_client = None
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def beijing_time():
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"""获取北京时间 (UTC+8)"""
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return datetime.now(timezone(timedelta(hours=8)))
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# 2. 定义初始化函数 (供工厂函数 create_app 调用)
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def init_extensions(app):
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"""
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统一初始化所有 Flask 扩展
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"""
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global redis_client
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# 初始化数据库
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db.init_app(app)
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# 初始化迁移工具
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migrate.init_app(app, db)
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# 初始化跨域设置 (允许 /api/* 路径被所有来源访问)
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cors.init_app(app, resources={r"/api/*": {"origins": "*"}})
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# 初始化 JWT (这一步至关重要，缺少它会导致 500 错误)
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jwt.init_app(app)
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# 初始化 Redis (单设备登录互踢)
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redis_url = app.config.get('REDIS_URL', 'redis://localhost:6379/0')
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try:
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redis_client = redis.from_url(redis_url, decode_responses=True)
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redis_client.ping()
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app.logger.info("✅ Redis connected successfully")
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except Exception as e:
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app.logger.warning(f"⚠️ Redis connection failed: {e}, single-device login will be disabled") |