从 API 响应解析 xml

Question

我正在试验一个输出 XML 的 API。

谁能告诉我解析 API 响应的代码是否有问题，或者是 API 本身的问题？

我可以使用put 命令：

import requests
import xml
from xml.etree import ElementTree

response = requests.post("https://openadrtester.herokuapp.com/api/v1/cpp/senorio/three")
string_xml = response.content
tree = xml.etree.ElementTree.fromstring(string_xml)

xml.etree.ElementTree.dump(tree)

但它会出错：

Traceback (most recent call last):
  File "C:\Users\bbartling\OneDrive - Slipstream\Desktop\myAPI\tut\test.py", line 7, in <module>
    tree = xml.etree.ElementTree.fromstring(string_xml)
  File "C:\Users\bbartling\AppData\Local\Programs\Python\Python37\lib\xml\etree\ElementTree.py", line 1315, in XML
    parser.feed(text)
  File "<string>", line None
xml.etree.ElementTree.ParseError: not well-formed (invalid token): line 1, column 0

XML 也可以通过浏览器在获取请求时查看：

https://openadrtester.herokuapp.com/

Answer 1

数据不是XML，而是Json（用.json()方法解析，然后像普通python结构一样访问）：

import json
import requests

response = requests.post("https://openadrtester.herokuapp.com/api/v1/cpp/senorio/three")
data = response.json()

print(json.dumps(data, indent=4))

打印：

{
    "notification": "True",
    "startTime": "2:00PM",
    "duration": "6 Hours",
    "randomization": "None",
    "rampUp": "None",
    "recovery": "None",
    "numberOfSignals": "2",
    "signalNameSimple": [
        {
            "signalType": "level",
            "units": "None",
            "numberOfIntervals": "None",
            "intervalDuration": "None",
            "typicalIntervalValues": "1,2,1",
            "signalTarget": "None"
        }
    ],
    "signalNameElectricityPrice": [
        {
            "signalType": "price",
            "units": "USD per kWh",
            "numberOfIntervals": "3",
            "intervalDuration": "1 hour,4 hour,1 hour",
            "typicalIntervalValues": "$0.50,$0.75,$0.50",
            "signalTarget": "None"
        }
    ]
}

---

编辑：修改请求标头以获取 XML：

import requests

response = requests.post("https://openadrtester.herokuapp.com/api/v1/cpp/senorio/three", headers={'Accept': 'application/xml'})
print(response.text)

打印：

<?xml version="1.0" ?><response><notification>True</notification><startTime>2:00PM</startTime><duration>6 Hours</duration><randomization>None</randomization><rampUp>None</rampUp><recovery>None</recovery><numberOfSignals>2</numberOfSignals><signalNameSimple><signalType>level</signalType><units>None</units><numberOfIntervals>None</numberOfIntervals><intervalDuration>None</intervalDuration><typicalIntervalValues>1,2,1</typicalIntervalValues><signalTarget>None</signalTarget></signalNameSimple><signalNameElectricityPrice><signalType>price</signalType><units>USD per kWh</units><numberOfIntervals>3</numberOfIntervals><intervalDuration>1 hour,4 hour,1 hour</intervalDuration><typicalIntervalValues>$0.50,$0.75,$0.50</typicalIntervalValues><signalTarget>None</signalTarget></signalNameElectricityPrice></response>