处理请求时遇到 urlencoding 问题

Facing urlencoding issue while processing request

我在 python 中编写了一个脚本来从网页中抓取一些信息。该站点需要 get 请求方法。我现在面临的问题是,由于 parameters 需要与 url 合并,所以它应该是 urlencoded。这就是我被困的地方。我无法对其进行正确编码以获得有效响应。我尝试了一下,但它没有带来任何东西

我尝试使用的脚本:

import requests
import urllib.parse

fields ={
'/API/api/v1/Search/Properties/?f':'319 lizzie','ty':'2018','pvty':'2017','pn':'1','st':'9','so':'1','pt':'RP;PP;MH;NR','take':'20','skip':'0','page':'1','pageSize':'20'
}
payload = urllib.parse.quote_plus(fields, safe='', encoding=None, errors=None)

headers={
"User-Agent":"Mozilla/5.0"
}

page = requests.get("http://search.wcad.org/Proxy/APIProxy.ashx?", params=payload, headers=headers)
print(page.json())

上面的URL应该是这样的:

http://search.wcad.org/Proxy/APIProxy.ashx?/API/api/v1/Search/Properties/?f=319%20LIZZIE&ty=2018&pvty=2017&pn=1&st=9&so=1&pt=RP%3BPP%3BMH%3BNR&take=20&skip=0&page=1&pageSize=20

获取响应。

顺便说一句,这是我现有脚本遇到的错误:

Traceback (most recent call last):
  File "C:\Users\ar\AppData\Local\Programs\Python\Python35-32\Social.py", line 9, in <module>
    payload = urllib.parse.quote_plus(fields, safe='', encoding=None, errors=None)
  File "C:\Users\ar\AppData\Local\Programs\Python\Python35-32\lib\urllib\parse.py", line 728, in quote_plus
    string = quote(string, safe + space, encoding, errors)
  File "C:\Users\ar\AppData\Local\Programs\Python\Python35-32\lib\urllib\parse.py", line 712, in quote
    return quote_from_bytes(string, safe)
  File "C:\Users\ar\AppData\Local\Programs\Python\Python35-32\lib\urllib\parse.py", line 737, in quote_from_bytes
    raise TypeError("quote_from_bytes() expected bytes")
TypeError: quote_from_bytes() expected bytes

这行得通。如 the documentation 所示,无需自己进行任何 URL 编码。

重点是查询字符串从最后一个问号开始,而不是从第一个问号开始。在 URL 中包含第二个问号是强制性的,因为 requests 只会在没有问号的情况下添加一个。

import requests

url = "http://search.wcad.org/Proxy/APIProxy.ashx?/API/api/v1/Search/Properties/?"
params = {'f':'319 lizzie','ty':'2018','pvty':'2017','pn':'1','st':'9','so':'1','pt':'RP;PP;MH;NR','take':'20','skip':'0','page':'1','pageSize':'20'}

response = requests.get(url, params)

response.json()

结果

{
    'ResultList': [{
        'PropertyQuickRefID': 'R016698',
        'PartyQuickRefID': 'O0485204',
        'OwnerQuickRefID': 'R016698',
        'LegacyID': None,
        'PropertyNumber': 'R-13-0410-0620-50000',
        'OwnerName': 'GOOCH, PHILIP L',
        'SitusAddress': '319 LIZZIE ST, TAYLOR, TX  76574',
        'PropertyValue': 46785.0,
        'LegalDescription': 'DOAK ADDITION, BLOCK 62, LOT 5',
        'NeighborhoodCode': 'T541',
        'Abstract': None,
        'Subdivision': 'S3564 - Doak Addition',
        'PropertyType': 'Real',
        'ID': 0,
        'Text': None,
        'TaxYear': 2018,
        'PropertyValueTaxYear': 2017
    }],
    'HasMoreData': False,
    'TotalPageCount': 1,
    'CurrentPage': 1,
    'RecordCount': 1,
    'SearchText': '319 lizzie',
    'PagingHandledByCaller': False,
    'TaxYear': 2018,
    'PropertyValueTaxYear': 0
}