python之scrapy爬取jd和qq招聘信息

1、settings.py文件

# -*- coding: utf-8 -*-

# Scrapy settings for jd project

#

# For simplicity, this file contains only settings considered important or

# commonly used. You can find more settings consulting the documentation:

#

#     https://doc.scrapy.org/en/latest/topics/settings.html

#     https://doc.scrapy.org/en/latest/topics/downloader-middleware.html

#     https://doc.scrapy.org/en/latest/topics/spider-middleware.html

BOT_NAME = 'jd'

SPIDER_MODULES = ['jd.spiders']

NEWSPIDER_MODULE = 'jd.spiders'

LOG_LEVEL="WARNING"

LOG_FILE="./jingdong1.log"

# Crawl responsibly by identifying yourself (and your website) on the user-agent

#USER_AGENT = 'jd (+http://www.yourdomain.com)'

# Obey robots.txt rules

ROBOTSTXT_OBEY = True

# Configure maximum concurrent requests performed by Scrapy (default: 16)

#CONCURRENT_REQUESTS = 32

# Configure a delay for requests for the same website (default: 0)

# See https://doc.scrapy.org/en/latest/topics/settings.html#download-delay

# See also autothrottle settings and docs

#DOWNLOAD_DELAY = 3

# The download delay setting will honor only one of:

#CONCURRENT_REQUESTS_PER_DOMAIN = 16

#CONCURRENT_REQUESTS_PER_IP = 16

# Disable cookies (enabled by default)

#COOKIES_ENABLED = False

# Disable Telnet Console (enabled by default)

#TELNETCONSOLE_ENABLED = False

# Override the default request headers:

#DEFAULT_REQUEST_HEADERS = {

#   'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',

#   'Accept-Language': 'en',

#}

# Enable or disable spider middlewares

# See https://doc.scrapy.org/en/latest/topics/spider-middleware.html

#SPIDER_MIDDLEWARES = {

#    'jd.middlewares.JdSpiderMiddleware': 543,

#}

# Enable or disable downloader middlewares

# See https://doc.scrapy.org/en/latest/topics/downloader-middleware.html

#DOWNLOADER_MIDDLEWARES = {

#    'jd.middlewares.JdDownloaderMiddleware': 543,

#}

# Enable or disable extensions

# See https://doc.scrapy.org/en/latest/topics/extensions.html

#EXTENSIONS = {

#    'scrapy.extensions.telnet.TelnetConsole': None,

#}

# Configure item pipelines

# See https://doc.scrapy.org/en/latest/topics/item-pipeline.html

#ITEM_PIPELINES = {

#    'jd.pipelines.JdPipeline': 300,

#}

# Enable and configure the AutoThrottle extension (disabled by default)

# See https://doc.scrapy.org/en/latest/topics/autothrottle.html

#AUTOTHROTTLE_ENABLED = True

# The initial download delay

#AUTOTHROTTLE_START_DELAY = 5

# The maximum download delay to be set in case of high latencies

#AUTOTHROTTLE_MAX_DELAY = 60

# The average number of requests Scrapy should be sending in parallel to

# each remote server

#AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0

# Enable showing throttling stats for every response received:

#AUTOTHROTTLE_DEBUG = False

# Enable and configure HTTP caching (disabled by default)

# See https://doc.scrapy.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings

#HTTPCACHE_ENABLED = True

#HTTPCACHE_EXPIRATION_SECS = 0

#HTTPCACHE_DIR = 'httpcache'

#HTTPCACHE_IGNORE_HTTP_CODES = []

#HTTPCACHE_STORAGE = 'scrapy.extensions.httpcache.FilesystemCacheStorage'

2、jingdong.py文件

# -*- coding: utf-8 -*-

import scrapy

import logging

import json

logger = logging.getLogger(__name__)

class JingdongSpider(scrapy.Spider):

    name = 'jingdong'

    allowed_domains = ['zhaopin.jd.com']

    start_urls = ['http://zhaopin.jd.com/web/job/job_list?page=1']

    pageNum = 1

    def parse(self, response):

        content  = response.body.decode()

        content = json.loads(content)

        ##########去除列表中字典集中的空值###########

        for i in range(len(content)):

            #list(content[i].keys()获取当前字典中的key

            for key in list(content[i].keys()): #content[i]为字典

                if not content[i].get(key):#content[i].get(key)根据key获取value

                    del content[i][key] #删除空值字典

        for i in range(len(content)):

            logging.warning(content[i])

        self.pageNum = self.pageNum+1

        if self.pageNum<=355:

            next_url = "http://zhaopin.jd.com/web/job/job_list?page="+str(self.pageNum)

            yield scrapy.Request(

                next_url,

                callback=self.parse

            )

        pass

3、注意点，针对jingdong的招聘翻页是使用javascrapt，所以无法使用crawlscrapy进行自动翻页，但是我们再network中查看其获取数据的方法。

如：http://zhaopin.jd.com/web/job/job_list?page=2

#############jingdong可以了，那么试试tencent公司的招聘信息吧###############

测试下吧！

结果知道了吧！！！！！开始干活！！！！！！！！！！

1、settings.py

# -*- coding: utf-8 -*-

# Scrapy settings for tencent project

#

# For simplicity, this file contains only settings considered important or

# commonly used. You can find more settings consulting the documentation:

#

#     https://doc.scrapy.org/en/latest/topics/settings.html

#     https://doc.scrapy.org/en/latest/topics/downloader-middleware.html

#     https://doc.scrapy.org/en/latest/topics/spider-middleware.html

BOT_NAME = 'tencent'

SPIDER_MODULES = ['tencent.spiders']

NEWSPIDER_MODULE = 'tencent.spiders'

LOG_LEVEL="WARNING"

LOG_FILE="./qq.log"

# Crawl responsibly by identifying yourself (and your website) on the user-agent

USER_AGENT = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Safari/537.36'

# Obey robots.txt rules

#ROBOTSTXT_OBEY = True

# Configure maximum concurrent requests performed by Scrapy (default: 16)

#CONCURRENT_REQUESTS = 32

# Configure a delay for requests for the same website (default: 0)

# See https://doc.scrapy.org/en/latest/topics/settings.html#download-delay

# See also autothrottle settings and docs

#DOWNLOAD_DELAY = 3

# The download delay setting will honor only one of:

#CONCURRENT_REQUESTS_PER_DOMAIN = 16

#CONCURRENT_REQUESTS_PER_IP = 16

# Disable cookies (enabled by default)

#COOKIES_ENABLED = False

# Disable Telnet Console (enabled by default)

#TELNETCONSOLE_ENABLED = False

# Override the default request headers:

#DEFAULT_REQUEST_HEADERS = {

#   'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',

#   'Accept-Language': 'en',

#}

# Enable or disable spider middlewares

# See https://doc.scrapy.org/en/latest/topics/spider-middleware.html

#SPIDER_MIDDLEWARES = {

#    'tencent.middlewares.TencentSpiderMiddleware': 543,

#}

# Enable or disable downloader middlewares

# See https://doc.scrapy.org/en/latest/topics/downloader-middleware.html

#DOWNLOADER_MIDDLEWARES = {

#    'tencent.middlewares.TencentDownloaderMiddleware': 543,

#}

# Enable or disable extensions

# See https://doc.scrapy.org/en/latest/topics/extensions.html

#EXTENSIONS = {

#    'scrapy.extensions.telnet.TelnetConsole': None,

#}

# Configure item pipelines

# See https://doc.scrapy.org/en/latest/topics/item-pipeline.html

#ITEM_PIPELINES = {

#    'tencent.pipelines.TencentPipeline': 300,

#}

# Enable and configure the AutoThrottle extension (disabled by default)

# See https://doc.scrapy.org/en/latest/topics/autothrottle.html

#AUTOTHROTTLE_ENABLED = True

# The initial download delay

#AUTOTHROTTLE_START_DELAY = 5

# The maximum download delay to be set in case of high latencies

#AUTOTHROTTLE_MAX_DELAY = 60

# The average number of requests Scrapy should be sending in parallel to

# each remote server

#AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0

# Enable showing throttling stats for every response received:

#AUTOTHROTTLE_DEBUG = False

# Enable and configure HTTP caching (disabled by default)

# See https://doc.scrapy.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings

#HTTPCACHE_ENABLED = True

#HTTPCACHE_EXPIRATION_SECS = 0

#HTTPCACHE_DIR = 'httpcache'

#HTTPCACHE_IGNORE_HTTP_CODES = []

#HTTPCACHE_STORAGE = 'scrapy.extensions.httpcache.FilesystemCacheStorage'

2、mahuateng.py

# -*- coding: utf-8 -*-

import scrapy

import json

import logging

class MahuatengSpider(scrapy.Spider):

    name = 'mahuateng'

    allowed_domains = ['careers.tencent.com']

    start_urls = ['https://careers.tencent.com/tencentcareer/api/post/Query?timestamp=1561688387174&countryId=&cityId=&bgIds=&productId=&categoryId=&parentCategoryId=40003&attrId=&keyword=&pageIndex=1&pageSize=10&language=zh-cn&area=cn']

    pageNum = 1

    def parse(self, response):

        content = response.body.decode()

        content = json.loads(content)

        content=content['Data']['Posts']

        #删除空字典

        for con in content:

            #print(con)

            for key in list(con.keys()):

                if not con.get(key):

                    del con[key]

        #记录每一个岗位信息

        for con in content:

            logging.warning(con)

        #####翻页######

        self.pageNum = self.pageNum+1

        if self.pageNum<=118:

            next_url = "https://careers.tencent.com/tencentcareer/api/post/Query?timestamp=1561688387174&countryId=&cityId=&bgIds=&productId=&categoryId=&parentCategoryId=40003&attrId=&keyword=&pageIndex="+str(self.pageNum)+"&pageSize=10&language=zh-cn&area=cn"

            yield  scrapy.Request(

                next_url,

                callback=self.parse

            )

个人测试是可以的，你们的就看运气了，哈哈！

这些都是个人玩的，码的比较丑陋。

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