带有参数数据的Python请求发布 [英] Python Request Post with param data

问题描述

这是对API调用的原始请求:

This is the raw request for an API call:

POST http://192.168.3.45:8080/api/v2/event/log?sessionKey=b299d17b896417a7b18f46544d40adb734240cc2&format=json HTTP/1.1
Accept-Encoding: gzip,deflate
Content-Type: application/json
Content-Length: 86
Host: 192.168.3.45:8080
Connection: Keep-Alive
User-Agent: Apache-HttpClient/4.1.1 (java 1.5)

{"eventType":"AAS_PORTAL_START","data":{"uid":"hfe3hf45huf33545","aid":"1","vid":"1"}}"""

此请求返回成功(2xx)响应.

This request returns a success (2xx) response.

现在，我正尝试使用requests发布此请求:

Now I am trying to post this request using requests:

>>> import requests
>>> headers = {'content-type' : 'application/json'}
>>> data ={"eventType":"AAS_PORTAL_START","data{"uid":"hfe3hf45huf33545","aid":"1","vid":"1"}}
>>> url = "http://192.168.3.45:8080/api/v2/event/log?sessionKey=9ebbd0b25760557393a43064a92bae539d962103&format=xml&platformId=1"
>>> requests.post(url,params=data,headers=headers)
<Response [400]>

对我来说，一切都很好，我不太确定自己张贴的错误是什么导致得到400响应.

Everything looks fine to me and I am not quite sure what I posting wrong to get a 400 response.

推荐答案

params用于GET样式的URL参数，data用于POST样式的正文信息.在请求中同时提供两种类型的信息是完全合法的，您的请求也是如此，但是您已经将URL参数编码为URL.

params is for GET-style URL parameters, data is for POST-style body information. It is perfectly legal to provide both types of information in a request, and your request does so too, but you encoded the URL parameters into the URL already.

您的原始帖子包含 JSON 数据. requests可以为您处理JSON编码，并且也会设置正确的Content-Header；您需要做的就是将Python对象传递为json关键字参数中的JSON编码.

Your raw post contains JSON data though. requests can handle JSON encoding for you, and it'll set the correct Content-Header too; all you need to do is pass in the Python object to be encoded as JSON into the json keyword argument.

您也可以拆分URL参数:

You could split out the URL parameters as well:

params = {'sessionKey': '9ebbd0b25760557393a43064a92bae539d962103', 'format': 'xml', 'platformId': 1}

然后通过以下方式发布您的数据:

then post your data with:

import requests

url = 'http://192.168.3.45:8080/api/v2/event/log'

data = {"eventType": "AAS_PORTAL_START", "data": {"uid": "hfe3hf45huf33545", "aid": "1", "vid": "1"}}
params = {'sessionKey': '9ebbd0b25760557393a43064a92bae539d962103', 'format': 'xml', 'platformId': 1}

requests.post(url, params=params, json=data)

json关键字是requests 2.4.2版中的新增功能；如果仍然需要使用旧版本，请使用json模块手动编码JSON，然后将编码后的结果作为data键发布；在这种情况下，您将必须显式设置Content-Type标头:

The json keyword is new in requests version 2.4.2; if you still have to use an older version, encode the JSON manually using the json module and post the encoded result as the data key; you will have to explicitly set the Content-Type header in that case:

import requests
import json

headers = {'content-type': 'application/json'}
url = 'http://192.168.3.45:8080/api/v2/event/log'

data = {"eventType": "AAS_PORTAL_START", "data": {"uid": "hfe3hf45huf33545", "aid": "1", "vid": "1"}}
params = {'sessionKey': '9ebbd0b25760557393a43064a92bae539d962103', 'format': 'xml', 'platformId': 1}

requests.post(url, params=params, data=json.dumps(data), headers=headers)

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