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Vladislav Shvetsov
Asked:2022-08-16 18:07:42 +0000 UTC2022-08-16 18:07:42 +0000 UTC

当请求获取请求没有响应时，为什么代码会崩溃？

  • 772

有一个 ping 服务器的代码，以及那些响应 ping 的代码 - 通过 API 发出请求。写了一个循环：

def NoStatsToday():
for x in Online:
    url = 'http://' + x + ':8200/api/v1/detection_storage/get_detections_stat?datetime_start=' + today + 'T00:00:00%2B05:00&datetime_end=' + today + 'T23:59:59%2B05:00'
    response = requests.get(url, timeout=5)
    forparse = response.json()
    all_detections = (forparse["statistic"]['all_detections'])
    try:
        response = requests.get(url, timeout=5)
    except ConnectionError:
        print(x + ' Нет подключение к порту 8200')
    else:
        if all_detections != 0:
            print(x + ' Есть статистика')
        else:
            print(x + ' Нет статистики')
            nostatsfile.write(x + pingfile.write(url + now))

如果8200端口不可用，理论上应该写

except ConnectionError:
        print(x + ' Нет подключение к порту 8200')

根据 CrazyElf 的建议，我进行了更正，如果我理解正确，它的意思是这样的：

def NoStatsToday():
    for x in Online:
        url = 'http://' + x + ':8200/api/v1/detection_storage/get_detections_stat?datetime_start=' + today + 'T00:00:00%2B05:00&datetime_end=' + today + 'T23:59:59%2B05:00'
        try:
            response = requests.get(url, timeout=5)
            forparse = response.json()
            all_detections = (forparse["statistic"]['all_detections'])
            if all_detections != 0:
                print(x + ' Есть статистика')
            else:
                print(x + ' Нет статистики')
                nostatsfile.write(x + pingfile.write(url + now))
        except ConnectionError:
            print(x + ' Нет подключения к порту 8200')

现在好像没有crash了，请问知道的人检查一下是否还有错误导致数据显示不正确或者代码crash？

python for

1 个回答

  1. Best Answer

    因此，需要输入所有内容try才能使其except正常工作：

        url = 'http://' + x + ':8200/api/v1/detection_storage/get_detections_stat?datetime_start=' + today + 'T00:00:00%2B05:00&datetime_end=' + today + 'T23:59:59%2B05:00'
    try:
        response = requests.get(url, timeout=5)
        forparse = response.json()
        all_detections = (forparse["statistic"]['all_detections'])
    except ConnectionError:
        print(x + ' Нет подключение к порту 8200')

    什么else意思，我不太明白。克for？无论如何，你需要all_detections在循环之前做一些初始化，否则，如果没有一个成功的动作，你的代码就会掉线if all_detections != 0:

    • 0

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