python请求给出“None”响应，其中需要json数据

8yoxcaq7 于 12个月前发布在 Python

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首先，我应该补充一下，你可以通过以下方式找到这个请求：

1- Go to [airline site][1]
2- Type in "From" = "syd"
3- Type in "To" = "sin"
4- Make the departure date sep.3 and click one-way and search
5- On the search result page check your network get request when you click on an available seat option radio button

我尝试使用requests模块来获取响应，例如从this site
这就是我在尝试的：

url = "http://www.singaporeair.com/chooseFlightJson.form?"
payload = {'selectedFlightIdDetails[0]':amount_data,'hid_flightIDs':'','hid_recommIDs':'','tripType':"O",'userPreferedCurrency':""}

response = requests.get(url, params=payload)
print response.json()

答案应该是：

{"price":{"total":"595.34","currency":{"code":"AUD","label":""},"adult":{"count":1,"label":"Adult","cost":"328.00","total":"328.00"},"child":{"count":0,"label":"Child","cost":"0.00","total":"0.00"},"infant":{"count":0,"label":"Infant","cost":"0.00","total":"0.00"},"addOns":[{"label":"Airport / Government taxes ","cost":"83.24"},{"label":"Carrier Surcharges","cost":"184.10"}],"disclaimer":"Prices are shown in Canadian Dollar(CAD)","rate":"595.34 AUD \u003d 913.80 CAD","ratehint":"Estimated","unFormattedTotal":"595.34"},"messages":{"O3FF11SYD":"A few seats left","O1FF31SYD":" ","R0FF31SYD":"A few seats left","O2FF31SYD":"A few seats left","O0FF31SYD":" ","O1FF11SYD":"A few seats left","O0FF21SYD":" ","O2FF21SYD":" ","O3FF21SYD":" ","O1FF21SYD":" "},"cabinClass":{"onwardCabin":["Economy"]}}

python

来源：https://stackoverflow.com/questions/32319845/python-requests-gives-none-response-where-json-data-is-expected

4条答案

按热度按时间

r6l8ljro1#

响应是值None，以JSON编码;服务器返回null\r\n，这与Python中的None相同。
这里的内容类型错误;它被设置为text/html，但response.json()返回值对于服务器发送的内容是完全正确的：

>>> import requests
>>> url = "http://www.singaporeair.com/chooseFlightJson.form?"
>>> amount_data = 0
>>> payload = {'selectedFlightIdDetails[0]':amount_data,'hid_flightIDs':'','hid_recommIDs':'','tripType':"O",'userPreferedCurrency':""}
>>> response = requests.get(url, params=payload)
>>> response
<Response [200]>
>>> response.headers['content-type']
'text/html; charset=ISO-8859-1'
>>> response.text
'null\r\n'
>>> response.json() is None
True

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i34xakig2#

将方案从http变更为https：

url = "https://www.singaporeair.com/chooseFlightJson.form?"

赞(0）回复(0）举报 12个月前

7uhlpewt3#

解决方案是使用requests session，如下所示：

session = requests.Session()

然后调用所有的URL，你只需要做：

response = session.get(url)

这将设置检索数据所需的cookie和会话变量。我见过jsessionid以不同的方式使用，在url中，或者在这种情况下在cookie中。但可能还需要其他会话信息，这些信息由requests session对象处理。

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vaj7vani4#

在进行http请求时，请确保response_type设置为您正在尝试的确切用例。在我的例子中，**response_type='object'**消除了响应中的None类型。

赞(0）回复(0）举报 12个月前

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python请求给出“None”响应，其中需要json数据

4条答案

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