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import requests
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import time
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from bs4 import BeautifulSoup
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# 固定的 User-Agent
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custom_user_agent = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
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# 固定的 Cookie
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custom_cookie = 'SESSDATA=f088e027%2C1742009093%2C2981a%2A91CjAZOWy34Bnk2yutAp0iAkrT9_GnVSnWjaJxjZh5xNycojooqqb3GBAqWEkeXTkUQLQSVk5rcWNaekt5VjNUVkJYV2VtaWo4NHlvc2NPQUFabTRhY2RBUkg5U1B4d3RoMmQ4eXQzN1R3Y1BXc0dBelJEenk4WTgyQjFJRlhmcFZZel94aThkQXVRIIEC; bili_jct=b51d3572b16a74e3ffc7a59f8a252e91; DedeUserID=3494376802093902;'
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# 1. 搜索视频，按照综合排序
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def get_search_results(keyword, page):
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search_url = "https://api.bilibili.com/x/web-interface/search/type"
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params = {
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"keyword": keyword,
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"page": page,
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"search_type": "video",
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"order": "totalrank" # 添加综合排序参数
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}
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headers = {
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'User-Agent': custom_user_agent,
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'Accept': 'application/json, text/javascript, */*; q=0.01',
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'Referer': 'https://www.bilibili.com/',
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'Cookie': custom_cookie
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}
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try:
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response = requests.get(search_url, headers=headers, params=params)
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response.raise_for_status() # 检查 HTTP 状态码
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result = response.json()
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if 'data' in result and 'result' in result['data']:
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return result['data']['result']
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else:
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print(f"第 {page} 页的搜索结果未找到")
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return []
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except requests.exceptions.HTTPError as http_err:
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print(f"HTTP 错误: {http_err}")
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return []
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except requests.exceptions.RequestException as e:
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print(f"请求失败: {e}")
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return []
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# 2. 获取视频的 CID (使用 bvid)
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def get_cid(bvid):
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url = f"https://api.bilibili.com/x/player/pagelist?bvid={bvid}"
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headers = {
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'User-Agent': custom_user_agent,
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'Referer': f"https://www.bilibili.com/video/{bvid}",
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'Cookie': custom_cookie
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}
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try:
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response = requests.get(url, headers=headers)
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response.raise_for_status()
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data = response.json()
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if 'data' in data and len(data['data']) > 0:
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return data['data'][0]['cid'] # 获取第一个页面的CID
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else:
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print(f"视频 {bvid} 的 CID 获取失败")
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return None
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except Exception as e:
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print(f"获取 CID 失败: {e}")
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return None
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# 3. 获取弹幕
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def get_danmaku(cid, bvid):
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danmaku_url = f"https://comment.bilibili.com/{cid}.xml"
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headers = {
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'User-Agent': custom_user_agent,
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'Referer': f"https://www.bilibili.com/video/{bvid}",
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'Cookie': custom_cookie
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}
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try:
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response = requests.get(danmaku_url, headers=headers)
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response.raise_for_status()
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soup = BeautifulSoup(response.content, 'lxml')
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danmakus = [d.text for d in soup.find_all('d')] # 提取每条弹幕的内容
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return danmakus
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except Exception as e:
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print(f"获取弹幕失败: {e}")
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return []
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# 4. 主逻辑
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def main():
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keyword = "2024巴黎奥运会"
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videos = []
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# 获取前300个视频
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for page in range(1, 16): # 每页有20个视频，15页大概可以获取到300个
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results = get_search_results(keyword, page)
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if results:
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videos.extend(results)
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print(f"第 {page} 页获取到 {len(results)} 个视频")
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else:
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print(f"第 {page} 页的搜索结果未找到或请求失败")
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if len(videos) >= 300:
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break
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time.sleep(1) # 每页请求间隔1秒，防止爬取过快
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print(f"共找到 {len(videos)} 个视频")
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if not videos:
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print("未找到任何视频，停止爬取")
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return
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# 获取每个视频的弹幕
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all_danmakus = []
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for i, video in enumerate(videos[:300]): # 只处理前300个视频
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bvid = video['bvid'] # 使用 bvid 而不是 aid
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title = video['title']
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try:
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cid = get_cid(bvid)
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if cid:
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danmakus = get_danmaku(cid, bvid)
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print(f"获取视频 {i+1}/{len(videos)} 的弹幕: {title}, 弹幕数: {len(danmakus)}")
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all_danmakus.extend(danmakus)
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else:
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print(f"视频 {title} 的 CID 获取失败")
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except Exception as e:
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print(f"视频 {title} 的弹幕获取失败: {e}")
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time.sleep(2) # 每次请求间隔2秒，避免请求过快
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# 保存弹幕数据到本地文件
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with open("danmakus_2024_olympics.txt", "w", encoding='utf-8') as f:
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for danmaku in all_danmakus:
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f.write(danmaku + "\n")
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print(f"所有弹幕已保存至 danmakus_2024_olympics.txt")
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# 运行主程序
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if __name__ == "__main__":
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main()
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