文章标题

来源:互联网 发布:2013年旅游数据统计 编辑:程序博客网 时间:2024/05/16 01:51
  • 1、初衷:想在网上批量下载点听书、脱口秀之类,资源匮乏,大家可以一试
  • 2、技术:wireshark scrapy jsonMonogoDB
  • 3、思路:wireshark分析移动APP返回的各种连接分类、列表、下载地址等(json格式)
  • 4、思路:scrapy解析json,并生成下载连接
  • 5、思路:存储到MongoDB
  • 6、难点:wireshark分析各类地址,都是简单的scrapy的基础使用,官网的说明文档都有
  • 7、按照:tree /F生成的文件目录进行说明吧

1 items.py 字段设置,根据需要改变

”’
from scrapy import Item,Field
class QtscrapyItem(Item):
id = Field()
parent_info = Field()
title = Field()
update_time = Field()
file_path = Field()
source = Field()
”’

2 pipelines.py 字段设置及相关处理,根据需要改变

”’
import pymongo as pymongo
from scrapy import signals
import json
import codecs
from scrapy.conf import settings
class QtscrapyPipeline(object):
def init(self):
self.file = codecs.open(‘qingting_209.json’, ‘wb’, encoding=’utf-8’)
def process_item(self, item, spider):
line = json.dumps(dict(item), ensure_ascii=False) + “\n”
# print(line)
self.file.write(line)
return item
class QtscrapyMongoPipeline(object):
def init(self):
host = settings[‘MONGODB_HOST’]
port = settings[‘MONGODB_PORT’]
dbName = settings[‘MONGODB_DBNAME’]
client = pymongo.MongoClient(host=host, port=port)
tdb = client[dbName]
self.post = tdb[settings[‘MONGODB_DOCNAME’]]
def process_item(self, item, spider):
qtfm = dict(item)
self.post.insert(qtfm)
return item
”’

3 settings.py 基础配置 配置数据库存储相关 QtscrapyPipeline 来自pipelines.py中定义的类

”’
ITEM_PIPELINES = {
# ‘qtscrapy.pipelines.QtscrapyPipeline’: 300,
‘qtscrapy.pipelines.QtscrapyMongoPipeline’: 300,
}
MONGODB_HOST = ‘127.0.0.1’
MONGODB_PORT = 12345
MONGODB_DBNAME = ‘qingtingDB’
MONGODB_DOCNAME = ‘qingting’
”’

└─spiders

4 qingting.py 爬虫,各显神通

”’
from scrapy.spiders import BaseSpider
from scrapy.http import Request
import sys, json
from qtscrapy.items import QtscrapyItem
from scrapy_redis.spiders import RedisSpider
reload(sys)
sys.setdefaultencoding(“utf-8”)

1 酷我听书地址分析

http://ts.kuwo.cn/service/gethome.php?act=new_home
http://ts.kuwo.cn/service/getlist.v31.php?act=catlist&id=97
http://ts.kuwo.cn/service/getlist.v31.php?act=cat&id=21&type=hot
http://ts.kuwo.cn/service/getlist.v31.php?act=detail&id=100102396

2 配合Redis使用class qtscrapy(RedisSpider):

class qtscrapy(BaseSpider):
name = “qingting”
# redis_key = ‘qingting:start_urls’
base_url = “http://api2.qingting.fm/v6/media/recommends/guides/section/”
start_urls = [“http://api2.qingting.fm/v6/media/recommends/guides/section/0“,
“http://ts.kuwo.cn/service/gethome.php?act=new_home“,
“http://api.mting.info/yyting/bookclient/ClientTypeResource.action?type=0&pageNum=0&pageSize=500&token=_4WfzpCah8ujgJZZzboaUGkJQvWGfEEL-zdukwv7lbY*&q=0&imei=ODY1MTY2MDIxNzMzNjI0”]
allowed_domains = [“api2.qingting.fm”, “ts.kuwo.cn”, “api.mting.info”]
def parse(self, response):

3 根据返回的url判断,在思考是scrapy执行多爬虫还是这种混杂

    if "qingting" in response.url:        qt_json = json.loads(response.body, encoding="utf-8")        if qt_json["data"] is not None:            for data in qt_json["data"]:                if data is not None:                    for de in data["recommends"]:                        if de["parent_info"] is None:                            pass                        else:                            jm_url = "http://api2.qingting.fm/v6/media/channelondemands/%(parent_id)s/programs/curpage/1/pagesize/1000" % \                                     de["parent_info"]                            yield Request(jm_url, callback=self.get_qt_jmlist, meta={"de": de})        for i in range(0, 250):            url = self.base_url + str(i)            yield Request(url, callback=self.parse)    if "kuwo" in response.url:        kw_json = json.loads(response.body, encoding="utf-8")        if kw_json["cats"] is not None:            for data in kw_json["cats"]:                pp_id = data["Id"]                kw_url = "http://ts.kuwo.cn/service/getlist.v31.php?act=catlist&id=%s" % pp_id                yield Request(kw_url, callback=self.get_kw_catlist)    if "mting" in response.url:        # print(response)        lr_json = json.loads(response.body, encoding="utf-8")        if len(lr_json["list"]) > 0:            for l in lr_json["list"]:                try:                    lr_url = "http://api.mting.info/yyting/bookclient/ClientTypeResource.action?type=%(id)s&pageNum=0&pageSize=1000&sort=2&token=_4WfzpCah8ujgJZZzboaUGkJQvWGfEEL-zdukwv7lbY*&imei=ODY1MTY2MDIxNzMzNjI0" % l                    yield Request(lr_url, callback=self.get_lr_booklist)                except:                    pass        for r in range(-10, 1000):            lr_url = "http://api.mting.info/yyting/bookclient/ClientTypeResource.action?type=%s&pageNum=0&pageSize=1000&token=_4WfzpCah8ujgJZZzboaUGkJQvWGfEEL-zdukwv7lbY*&q=0&imei=ODY1MTY2MDIxNzMzNjI0" % t            yield Request(lr_url, callback=self.parse)

4 需递归几次是由App结构决定的

def get_qt_jmlist(self, response):    jm_json = json.loads(response.body, encoding="utf-8")    de = response.meta["de"]    for jm_data in jm_json["data"]:        if jm_data is None:            pass        else:            try:                file_path = "http://upod.qingting.fm/%(file_path)s?deviceid=ffffffff-ebbe-fdec-ffff-ffffb1c8b222" % \                            jm_data["mediainfo"]["bitrates_url"][0]                item = QtscrapyItem()                # print(item)                # print(jm_data["id"])                item["id"] = str(jm_data["id"])                parent_info = "%(parent_id)s_%(parent_name)s" % de["parent_info"]                item["parent_info"] = parent_info                item["title"] = jm_data["title"]                item["update_time"] = str(jm_data["update_time"])[:str(jm_data["update_time"]).index(' ')]                item["file_path"] = file_path                item["source"] = "qingting"                yield item            except:                pass    passdef get_kw_catlist(self, response):    try:        kw_json = json.loads(response.body, encoding="utf-8")        if kw_json["sign"] is not None:            if kw_json["list"] is not None:                for data in kw_json["list"]:                    p_id = data["Id"]                    kw_p_url = "http://ts.kuwo.cn/service/getlist.v31.php?act=cat&id=%s&type=hot" % p_id                    yield Request(kw_p_url, callback=self.get_kw_cat)    except:        print("*" * 300)        print(self.name, kw_json)        passdef get_kw_cat(self, response):    try:        kw_json = json.loads(response.body, encoding="utf-8")        p_info = {}        if kw_json["sign"] is not None:            if kw_json["list"] is not None:                for data in kw_json["list"]:                    id = data["Id"]                    p_info["p_id"] = data["Id"]                    p_info["p_name"] = data["Name"]                    kw_pp_url = "http://ts.kuwo.cn/service/getlist.v31.php?act=detail&id=%s" % id                    yield Request(kw_pp_url, callback=self.get_kw_jmlist, meta={"p_info": p_info})    except:        print("*" * 300)        print(self.name, kw_json)        passdef get_kw_jmlist(self, response):    jm_json = json.loads(response.body, encoding="utf-8")    p_info = response.meta["p_info"]    for jm_data in jm_json["Chapters"]:        if jm_data is None:            pass        else:            try:                file_path = "http://cxcnd.kuwo.cn/tingshu/res/WkdEWF5XS1BB/%s" % jm_data["Path"]                item = QtscrapyItem()                item["id"] = str(jm_data["Id"])                parent_info = "%(p_id)s_%(p_name)s" % p_info                item["parent_info"] = parent_info                item["title"] = jm_data["Name"]                item["update_time"] = ""                item["file_path"] = file_path                item["source"] = "kuwo"                yield item            except:                pass    passdef get_lr_booklist(self, response):    s_lr_json = json.loads(response.body, encoding="utf-8")    if len(s_lr_json["list"]) > 0:        for s_lr in s_lr_json["list"]:            s_lr_url = "http://api.mting.info/yyting/bookclient/ClientGetBookResource.action?bookId=%(id)s&pageNum=1&pageSize=2000&sortType=0&token=_4WfzpCah8ujgJZZzboaUGkJQvWGfEEL-zdukwv7lbY*&imei=ODY1MTY2MDIxNzMzNjI0" % s_lr            meta = {}            meta["id"] = s_lr["id"]            meta["name"] = s_lr["name"]            yield Request(s_lr_url, callback=self.get_lr_kmlist, meta={"meta": meta})def get_lr_kmlist(self, response):    ss_lr_json = json.loads(response.body, encoding="utf-8")    parent = response.meta["meta"]    if len(ss_lr_json["list"]) > 0:        for ss_lr in ss_lr_json["list"]:            try:                item = QtscrapyItem()                item["id"] = str(ss_lr["id"])                parent_info = "%(id)s_%(name)s" % parent                item["parent_info"] = parent_info                item["title"] = ss_lr["name"]                item["update_time"] = ""                item["file_path"] = ss_lr["path"]                item["source"] = "lr"                yield item            except:                pass

”’
###5 结果展示,爬取了大概40万记录

这里写图片描述

0 0