如何使用 js 设置 Access-Control-Allow-Origin

Question

从源“http://127.0.0.1:5500”访问“https://www.nseindia.com/api/option-chain-equities?symbol=RELIANCE”的 XMLHttpRequest 已被 CORS 政策阻止：对预检的响应请求未通过访问控制检查：请求的资源上不存在“Access-Control-Allow-Origin”标头。

这是我的代码

  const zonofne = async function handleSubmit() {
  const headers = {
    "Access-Control-Allow-Origin": "*",
  };
  await axios
    .get("https://www.nseindia.com/api/option-chain-equities?symbol=RELIANCE", {
      headers,
    })
    .then((response) => {
      console.log(response);
    })
    .catch((error) => {
      console.log(error);
    });
};
zonofne();

Answer 1

您可以使用beautifulsoup HTML 解析器：

import requests
from bs4 import BeautifulSoup

params = {
    'q': 'what is the capital of india',
    'hl': 'en'
}

url = 'https://www.google.com/search'

headers = {'User-Agent': 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:81.0) Gecko/20100101 Firefox/81.0'}
soup = BeautifulSoup(requests.get(url, params=params, headers=headers).content, 'html.parser')

capital = soup.select_one('[data-attrid="kc:/location/country:capital"]')
print(capital.text)

印刷：

New Delhi