Python請求如何正確使用post請求的有效負載

我做錯了什麼？我之前已經刮過網站，但這個有效載荷對我來說很困難。Python請求如何正確使用post請求的有效負載

from requests import session 
from bs4 import BeautifulSoup as bs 

payload = { 
    "p_flow_id" : 838 , 
    "p_flow_step_id": 4 , 
    "p_instance" :1282563643133 , 
    "p_page_submission_id" :4990502617229, 
    "p_request" : "" 
} 


with session() as c: 
    c.post('http://nid.usace.army.mil/cm_apex/f?p=838:4:0::NO/wwv_flow.accept', data=payload) 
    url = c.get('http://nid.usace.army.mil/cm_apex/f?p=838:4:0::NO/wwv_flow.accept') 
    html = url.content 
    soup = bs(html)

來源

2017-02-15 Austin Peel

您可能要加試/除非檢查請求返回200或沒有，如果它不處理異常「T。 – cbll

你的第一個請求返回與404錯誤：

from bs4 import BeautifulSoup as bs 

payload = { 
    "p_flow_id" : 838 , 
    "p_flow_step_id": 4 , 
    "p_instance" :1282563643133 , 
    "p_page_submission_id" :4990502617229, 
    "p_request" : "" 
    } 


with session() as c: 
    print 'in' 
    r1 = c.post('http://nid.usace.army.mil/cm_apex/f?p=838:4:0::NO/wwv_flow.accept', data=payload) 
    print r1.status_code # 404 
    url = c.get('http://nid.usace.army.mil/cm_apex/f?p=838:4:0::NO/wwv_flow.accept') 
    html = url.content 
    soup = bs(html,'lxml') 
    print soup

來源

2017-02-15 13:36:45 mtt2p

Python請求如何正確使用post請求的有效負載

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