Eventhub在python中以列表形式读取数据

我想将Azure Eventhub用作中间件消息传递队列。我基本上是以列表格式发送模拟数据，然后以字符串格式接收

如您所见，只有少数几种格式的数据是可转换的。我希望数据的格式是一个包含浮点数据的列表

这是我现在正在编写的代码。我正试图将下面的行操作到列表中以浮点形式累积的每个事件数据

LIST.append(event_data.message._body)

这是我的代码的主体

CONSUMER_GROUP = "$default"
OFFSET = Offset("-1")
PARTITION = "0"


total = 0
last_sn = -1
last_offset = "-1"
client = EventHubClient(ADDRESS, debug=False, username=USER, password=KEY)
i=1
LIST=[]
try:
    receiver = client.add_receiver(CONSUMER_GROUP, PARTITION, prefetch=5000, offset=OFFSET)
    client.run()
    start_time = time.time()
    batch = receiver.receive(timeout=None)
    while batch:
        for event_data in batch[-100:]:

            last_offset = event_data.offset
            last_sn = event_data.sequence_number
            print("Received: {}, {}".format(i, last_sn))
            LIST.append(event_data.message._body)

            i += 1
            total += 1
        batch = receiver.receive(timeout=5000)

    end_time = time.time()
    client.stop()
    run_time = end_time - start_time
    print("Received {} messages in {} seconds".format(total, run_time))

except KeyboardInterrupt:
    pass
finally:
    client.stop()

您可以在中找到eventData类

=============================================更新===================================

因此，它会显示“Message[abc….]”，我认为该消息已设置为写入，因此我想删除结果格式中的“Message”一词

“sender.py”如下所示：

from azure.eventhub import EventHubClient, Sender, EventData
import time
import logging
import numpy as np

logger = logging.getLogger("azure")

ADDRESS = ""
USER = "RootManageSharedAccessKey"
KEY = ""

try:
    if not ADDRESS:
        raise ValueError("No EventHubs URL supplied.")

    # Create Event Hubs client
    client = EventHubClient(ADDRESS, debug=False, username=USER, password=KEY)
    sender = client.add_sender(partition="0")
    client.run()
    forging2 = lambda x: (np.exp(-(0.1*x-6)**2+3) + np.exp(-(0.1*x-4)**2+4))*1.4
    x_value = np.arange(100)
    try:
        start_time = time.time()
        for i in range(100):

            y_value1 = forging2(x_value) + np.random.normal(0,1,len(x_value))*3
            y_value1 = np.asarray(y_value1)
            print("Sending message: {}, {}".format(i, y_value1))
            message = y_value1
            sender.send(EventData(message))
            time.sleep(0.35)
    except:
        raise
    finally:
        end_time = time.time()
        client.stop()
        run_time = end_time - start_time
        logger.info("Runtime: {} seconds".format(run_time))

except KeyboardInterrupt:
    pass

---

固定代码如下所示：

logger = logging.getLogger("azure")

ADDRESS = ""
USER = "RootManageSharedAccessKey"
KEY = ""

try:
    if not ADDRESS:
        raise ValueError("No EventHubs URL supplied.")
    # Create Event Hubs client
    client = EventHubClient(ADDRESS, debug=False, username=USER, password=KEY)
    sender = client.add_sender(partition="0")
    client.run()
    forging2 = lambda x: (np.exp(-(0.1*x-6)**2+3) + np.exp(-(0.1*x-4)**2+4))*1.4
    x_value = np.arange(100)
    try:
        start_time = time.time()
        for i in range(100000):

            y_value1 = forging1(x_value) + np.random.normal(0,1,len(x_value))*3
            y_value1 = np.asarray(y_value1)
            print("Sending message: {}, {}".format(i, y_value1))
            message = "{}".format(y_value1)
            sender.send(EventData(message))
            time.sleep(0.35)
    except:
        raise
    finally:
        end_time = time.time()
        client.stop()
        run_time = end_time - start_time
        logger.info("Runtime: {} seconds".format(run_time))

except KeyboardInterrupt:
    pass

---

通过这种方式，我能够在没有“消息”的情况下接收消息

你能提供你的发送方法和发送的数据类型吗？@IvanYang所以，我发送了一个包含100个浮点数的数组。eventclient是对象客户机的一个类，因此，您没有在事件数据中添加“消息”，对吗？@IvanYang当然没有。它只是自动添加的，我不知道它来自哪里。我查找了似乎链接到Eventdata的message类，但仍然无法在其中找到它。我要确认的最后一件事是，如何获取“message[a b c….]”，只打印列表，还是其他什么？