Python爬取B站视频信息

该文内容已失效，现已实现scrapy+scrapy-splash来爬取该网站视频及用户信息，由于B站的反爬封IP，以及网上的免费代理IP绝大部分失效，
无法实现一个可靠的IP代理池，免费代理网站又是各种反爬，解决反爬后获取到的有效IP占比极低，不想折腾，因此视频信息暂时无法成功获取。
github地址 https://github.com/delav/bstation

该爬虫可以爬取B站所有视频的信息：标题，发布时间，链接，点击数，弹幕数，

收藏数，硬币数，分享数，作者，作者性别，（生日）。输入你要爬取的起始

视频编号（如https://www.bilibili.com/video/av15010461，输入“15010461”）

然后输入需要爬取的数量，即可。可修改代码选择存入数据库或者Excel文件

没有用到多进程，多线程，爬取速度有点慢。

注意：起始视频编号的视频必须是存在的，如果输入的起始视频编号不存在，

会出现错误，暂时没解决

　　数据存入数据库，本地必须先安装MySQL。

代码如下（由于B站源代码经常改，只要查看源代码，修改一些信息的xpath获取方式即可）：

# coding: utf-8

# windows终端运行修改以下：
# i = input("起始视频编号：".decode('utf-8').encode('gbk'))
# print u"爬取完成"

import requests
import urllib2
import zlib
from lxml import etree
import MySQLdb
import datetime
import os
import xlwt
import multiprocessing
from xlrd import open_workbook
from xlutils.copy import copy
# import random
import warnings
import sys

reload(sys)
sys.setdefaultencoding('utf-8')
warnings.filterwarnings("ignore")  # 忽略警告提示
mode_url = 'https://api.bilibili.com/x/web-interface/archive/stat?aid={}'
title_url = 'https://www.bilibili.com/video/av{}'
path = os.getcwd()
file_path = path + os.sep + 'bilibili.xls'
headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) '
                         'Chrome/49.0.2623.112 Safari/537.36'}

# 获取所需要的信息列表
def get_info(t_url, m_url):
    msg_list = []
    try:
        request = urllib2.Request(t_url, headers=headers)
        request.add_header('Accept-encoding', 'gzip')
        opener = urllib2.build_opener()
        response = opener.open(request, timeout=10)
        html = response.read()
        gzipped = response.headers.get('Content-Encoding')
        if gzipped:
            html = zlib.decompress(html, 16 + zlib.MAX_WBITS)
        # print html
        html = etree.HTML(html)
        raw_mid = html.xpath("//div[@class='u-face fl']/a/@href")
        author_url = 'https:' + raw_mid[0]
        raw_title = html.xpath("//title[@data-vue-meta='true']/text()")
        str_title = raw_title[0].encode('unicode-escape')
        real_title = str_title.split('_')[0]
        title = real_title.decode('unicode-escape')
        msg_list.append(title)  # 标题
        types = html.xpath("//div[@class='tminfo']/span[last()-1]/a/text()")
        msg_list.append(types[0])  # 类型
        public_time = html.xpath("//time//i/text()")
        msg_list.append(public_time[0])  # 发布时间
        # author = html.xpath("//meta[@name='author']/@content")
        # msg_list.append(author)

        response1 = requests.get(m_url, headers=headers, verify=False, timeout=10)
        response2 = requests.get(author_url, headers=headers, verify=False)
        print "3333", response1.status_code
        print "4444", response2.status_code
        if response1.status_code == 200 and response2.status_code == 200:
            j1 = response1.json()['data']
            aid = 'www.bilibili.com/video/av' + str(j1['aid'])  # 地址
            view = j1['view']  # 播放量,视频没有播放量时显示会‘--’,不是整数，会抓取失败
            danmaku = j1['danmaku']  # 弹幕
            favorite = j1['favorite']  # 收藏
            coin = j1['coin']  # 硬币
            share = j1['share']  # 分享
            j2 = response2.json()['data']['card']
            author = str(j2['name'].encode('utf-8'))  # 作者
            sex = str(j2['sex'].encode('utf-8'))  # 性别
            # birthday = str(j2['birthday'])  # 生日
            msg_list.extend([aid, view, danmaku, favorite, coin, share, author, sex])
    except Exception, e:
        pass
        print e
    return msg_list

# 计时装饰器
def timer(func):
    def time_count(*args):
        start_time = datetime.datetime.now()
        func(*args)
        end_time = datetime.datetime.now()
        day = (end_time - start_time).days
        times = (end_time - start_time).seconds
        hour = times / 3600
        h = times % 3600
        minute = h / 60
        m = h % 60
        second = m
        print "爬取完成"
        print "一共用时%s天%s时%s分%s秒" % (day, hour, minute, second)
    return time_count

# 把数据存到MySQL数据库中
def mysql_save(my_list):
    conn = MySQLdb.connect(host="localhost",
                           port=3306,
                           user="root",
                           passwd="729814",
                           charset="utf8")
    cur = conn.cursor()
    cur.execute("create database if not exists bili")
    conn.select_db('bili')
    cur.execute("create table if not exists info (title varchar(30),"
                "types varchar(10),"
                "pub_time varchar(20),"
                "aid varchar(50),"
                "views int(20),"
                "danmaku int(15),"
                "favorite int(15),"
                "coin int(10),"
                "share int(10),"
                "author varchar(30),"
                "sex varchar(10))")
    sql = "insert into info values(%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)"
    cur.execute(sql, my_list)
    conn.commit()

# 把数据存到Excel表格中
def excel_save(my_list):
    try:
        first_row = ['标题', '类型', '发布时间', '地址', '播放量', '弹幕', '收藏', '硬币', '分享', '作者', '性别']
        style_bold = xlwt.easyxf('font: color-index red, bold on')
        header_style = style_bold
        if not os.path.isfile(file_path):
            w = xlwt.Workbook(encoding='utf-8')
            ws = w.add_sheet('Sheet 1')
            for x, value in enumerate(first_row):
                ws.write(0, x, value.decode('utf-8'), header_style)
            w.save(file_path)
        rexcel = open_workbook(file_path, formatting_info=True)
        rows = rexcel.sheets()[0].nrows
        excel = copy(rexcel)
        table = excel.get_sheet(0)
        for y, value in enumerate(my_list):
            if type(value) == str:
                table.write(rows, y, value.decode('utf-8'))
            else:
                table.write(rows, y, value)
        excel.save(file_path)
    except Exception, e:
        print e
        print "请先关闭bilibili.xls"

# 主函数
@timer
def main(i, n):
    print "开始爬取...."
    t = 0
    while t < n:
        t += 1
        t_url = title_url.format(i)
        m_url = mode_url.format(i)
        msg_list = get_info(t_url, m_url)
        if len(msg_list) == 11:
            # 存到数据库
            mysql_save(msg_list)
            # 存到Excel
            # excel_save(msg_list)
            print "爬取第%s个成功" % t
        else:
            print "爬取%s失败失败" % t
        i += 1

if __name__ == '__main__':
    num1 = input("起始视频编号：")
    print "---------------------"
    num2 = input("需要爬取数量：")
    print "---------------------"
    main(num1, num2)