from flask import Flask
from redis import ConnectionPool, Redis

app = Flask(__name__)

# 创建 Redis 连接池
pool = ConnectionPool(host='localhost', port=6379, db=0)

# 创建 Redis 客户端
redis_client = Redis(connection_pool=pool)

@app.route('/')
def hello():
    # 从连接池中获取 Redis 连接
    conn = redis_client.connection_pool.get_connection()
    # 使用 Redis 连接进行操作
    result = conn.get('key')
    # 将连接归还到连接池中
    conn.close()
    return result