使用requests.post提交URL遇405错误，求助向目标站点发送链接

First, let's unpack the 405 error: it means the server at http://csec380-core.csec.rit.edu:5004/ rejects the POST method for the root URL you're targeting. This usually happens for one of a few simple reasons—let's break down how to fix it:

Step 1: Inspect the Message Board's Form Details #

To get the right request parameters, use your browser's developer tools to check the actual form on the page:

1. Visit http://csec380-core.csec.rit.edu:5004/ in your browser.
2. Press F12 to open DevTools, then navigate to the Elements tab.
3. Locate the <form> element on the page and note three key details:
   • action: The specific URL the form submits to (it might be something like /submit instead of the root /).
   • method: Whether the form uses POST or GET—this is the HTTP method you need to mirror in your code.
   • The name attribute of the message input/textarea (you used message, but it could be msg, content, or another label).

Step 2: Adjust Your Python Code #

Based on what you found in DevTools, update your code to match the form's requirements. Here are common scenarios:

Scenario 1: Form submits to a dedicated endpoint

If the form's action points to something like /submit, update your request URL:

import requests

# Use the correct endpoint from the form's action attribute
url = 'http://csec380-core.csec.rit.edu:5004/submit'
# Use the exact field name from the form's input
data = {'message': 'http://52.14.44.145/'}

r = requests.post(url, data=data)
print(r.status_code)
print(r.text)

Scenario 2: Form uses GET instead of POST

If the form's method is set to GET, switch to a GET request and pass your message as URL parameters:

import requests

url = 'http://csec380-core.csec.rit.edu:5004/'
params = {'message': 'http://52.14.44.145/'}

r = requests.get(url, params=params)
print(r.status_code)
print(r.text)

Scenario 3: Add Browser-like Headers (If Needed)

Some servers block requests that don't mimic a real browser. Add a User-Agent header to your request:

import requests

url = 'http://csec380-core.csec.rit.edu:5004/submit'
data = {'message': 'http://52.14.44.145/'}
headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36'
}

r = requests.post(url, data=data, headers=headers)
print(r.status_code)
print(r.text)

Quick Troubleshooting Tip #

If you still hit errors, double-check for hidden input fields in the form (DevTools will show these)—some sites require a CSRF token or other hidden values to process submissions.

内容的提问来源于stack exchange，提问作者lul