rabbitMQ subscriber

# subscriber.py
import pika
import json

def start_subscriber():
    connection = pika.BlockingConnection(
        pika.ConnectionParameters("host", 5672, "/", pika.PlainCredentials("admin", "admin"))
    )
    channel = connection.channel()

    # 声明相同的 fanout exchange
    channel.exchange_declare(exchange='pubsub_exchange', exchange_type='fanout', durable=True)

    # 创建临时队列（exclusive=True 表示连接断开后自动删除）
    result = channel.queue_declare(queue='', exclusive=True)
    queue_name = result.method.queue

    # 绑定队列到 exchange
    channel.queue_bind(exchange='pubsub_exchange', queue=queue_name)

    def callback(ch, method, properties, body):
        print(f"Received: {json.loads(body)}")

    channel.basic_consume(queue=queue_name, on_message_callback=callback, auto_ack=True)

    print('Waiting for messages...')
    channel.start_consuming()

if __name__ == "__main__":
    start_subscriber()