B站爬虫状态码-412怎么办

Question

代码如下：(相关Cookies已删）

import json
import requests

headerTemplate = {
    "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9",
    "accept-encoding": "gzip, deflate, br",
    "accept-language": "zh-CN,zh;q=0.9",
    "cache-control": "no-cache",
    "cookie": "cookie已清除",
    "pragma": "no-cache",
    "upgrade-insecure-requests": "1",
    "user-agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36"
}

res = json.loads(requests.get('https://api.bilibili.com/x/web-interface/nav',headers = headerTemplate).text)
print(res)

运行后报错：

{'code': -412, 'message': '请求被拦截', 'ttl': 1, 'data': None}

问问为什么会报-412错误啊

Answer 1

412本身是 没有满足的先决条件，你得检查 上面那些头信息是否缺少