Initial commit

JobSpider_lago/Run.py

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+from scrapy import cmdline
+
+# cmdline.execute('scrapy crawl LagoSpider'.split())
+cmdline.execute('scrapy crawl LagoSpider_redisSpider'.split())

JobSpider_lago/items.py

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+# -*- coding: utf-8 -*-
+
+# Define here the models for your scraped items
+#
+# See documentation in:
+# https://doc.scrapy.org/en/latest/topics/items.html
+
+import scrapy
+
+
+class JobspiderLagoItem(scrapy.Item):
+    # define the fields for your item here like:
+    keyword = scrapy.Field()
+    jobData = scrapy.Field()

JobSpider_lago/middlewares.py

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+# -*- coding: utf-8 -*-
+
+# Define here the models for your spider middleware
+#
+# See documentation in:
+# https://doc.scrapy.org/en/latest/topics/spider-middleware.html
+
+from scrapy import signals
+
+
+class JobspiderLagoSpiderMiddleware(object):
+    # Not all methods need to be defined. If a method is not defined,
+    # scrapy acts as if the spider middleware does not modify the
+    # passed objects.
+
+    @classmethod
+    def from_crawler(cls, crawler):
+        # This method is used by Scrapy to create your spiders.
+        s = cls()
+        crawler.signals.connect(s.spider_opened, signal=signals.spider_opened)
+        return s
+
+    def process_spider_input(self, response, spider):
+        # Called for each response that goes through the spider
+        # middleware and into the spider.
+
+        # Should return None or raise an exception.
+        return None
+
+    def process_spider_output(self, response, result, spider):
+        # Called with the results returned from the Spider, after
+        # it has processed the response.
+
+        # Must return an iterable of Request, dict or Item objects.
+        for i in result:
+            yield i
+
+    def process_spider_exception(self, response, exception, spider):
+        # Called when a spider or process_spider_input() method
+        # (from other spider middleware) raises an exception.
+
+        # Should return either None or an iterable of Response, dict
+        # or Item objects.
+        pass
+
+    def process_start_requests(self, start_requests, spider):
+        # Called with the start requests of the spider, and works
+        # similarly to the process_spider_output() method, except
+        # that it doesn’t have a response associated.
+
+        # Must return only requests (not items).
+        for r in start_requests:
+            yield r
+
+    def spider_opened(self, spider):
+        spider.logger.info('Spider opened: %s' % spider.name)
+
+
+class JobspiderLagoDownloaderMiddleware(object):
+    # Not all methods need to be defined. If a method is not defined,
+    # scrapy acts as if the downloader middleware does not modify the
+    # passed objects.
+
+    @classmethod
+    def from_crawler(cls, crawler):
+        # This method is used by Scrapy to create your spiders.
+        s = cls()
+        crawler.signals.connect(s.spider_opened, signal=signals.spider_opened)
+        return s
+
+    def process_request(self, request, spider):
+        # Called for each request that goes through the downloader
+        # middleware.
+
+        # Must either:
+        # - return None: continue processing this request
+        # - or return a Response object
+        # - or return a Request object
+        # - or raise IgnoreRequest: process_exception() methods of
+        #   installed downloader middleware will be called
+        return None
+
+    def process_response(self, request, response, spider):
+        # Called with the response returned from the downloader.
+
+        # Must either;
+        # - return a Response object
+        # - return a Request object
+        # - or raise IgnoreRequest
+        return response
+
+    def process_exception(self, request, exception, spider):
+        # Called when a download handler or a process_request()
+        # (from other downloader middleware) raises an exception.
+
+        # Must either:
+        # - return None: continue processing this exception
+        # - return a Response object: stops process_exception() chain
+        # - return a Request object: stops process_exception() chain
+        pass
+
+    def spider_opened(self, spider):
+        spider.logger.info('Spider opened: %s' % spider.name)

JobSpider_lago/pipelines.py

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+# -*- coding: utf-8 -*-
+
+# Define your item pipelines here
+#
+# Don't forget to add your pipeline to the ITEM_PIPELINES setting
+# See: https://doc.scrapy.org/en/latest/topics/item-pipeline.html
+
+
+from JobSpider_lago.settings import *
+import pymysql
+
+
+# 最开始的pipeline
+class JobspiderLagoPipelineDefault(object):
+
+    def process_item(self, item, spider):
+        return item
+
+
+class JobspiderLagoPipelineMySql(object):
+
+    def open_spider(self, spider):
+        self.db = pymysql.connect(host=MYSQLHOST, user=MYSQLUSER, password=MYSQLPASSWORD, db=MYSQLDATABASE,
+                                  port=MYSQLPORT, charset='utf8')
+        self.cu = self.db.cursor()
+
+    def process_item(self, item, spider):
+        jobData = item['jobData']
+        data = [
+            item['keyword'],
+            jobData['所在城市'],
+            jobData['公司氛围'],
+            jobData['公司规模'],
+            jobData['是否上市'],
+            jobData['第一工作分类'],
+            jobData['工作性质'],
+            jobData['工作优势'],
+            jobData['工作技能要求'],
+            jobData['工作名称'],
+            jobData['工资'],
+            jobData['第二工作分类'],
+            jobData['第三工作分类'],
+            jobData['工作年限要求']
+        ]
+        try:
+            self.cu.execute(
+                'insert into jobInfo( '
+                'keyword, city, companyLabelList, companySize, financeStage, firstType, jobNature,'
+                'positionAdvantage, positionLables, positionName, salary, secondType, thirdType, workYear'
+                ')values (%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)', data
+            )
+        except Exception as e:
+            print(e)
+            self.db.rollback()
+        else:
+            self.db.commit()
+
+        return item
+
+    def close_spider(self, spider):
+        self.cu.close()
+        self.db.close()

JobSpider_lago/settings.py

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+# -*- coding: utf-8 -*-
+
+# Scrapy settings for JobSpider_lago 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 = 'JobSpider_lago'
+
+SPIDER_MODULES = ['JobSpider_lago.spiders']
+NEWSPIDER_MODULE = 'JobSpider_lago.spiders'
+
+LOG_LEVEL = 'DEBUG'
+
+# 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/77.0.3865.120 Safari/537.36'
+
+# Obey robots.txt rules
+ROBOTSTXT_OBEY = False
+
+# MYSQL INFO
+MYSQLHOST = 'localhost'
+MYSQLUSER = 'root'
+MYSQLPASSWORD = '123456'
+MYSQLDATABASE = 'testdb'
+MYSQLPORT = 3306
+
+# Redis INFO
+REDIS_URL = 'redis://localhost:6379'
+# REDIS_HOST = 'localhost'
+# REDIS_POST = '6379'
+# redis的去重类
+DUPEFILTER_CLASS = "scrapy_redis.dupefilter.RFPDupeFilter"
+# redis使用的调度器
+SCHEDULER = "scrapy_redis.scheduler.Scheduler"
+# 调度器保留请求过的url（增量式爬虫，断点续爬）
+SCHEDULER_PERSIST = True
+# 设置 redis 编码方法
+REDIS_ENCODING = 'utf-8'
+# redis 密码
+# REDIS_PARAMS = {'password':'123456'}
+
+# 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 = {
+#    'JobSpider_lago.middlewares.JobspiderLagoSpiderMiddleware': 543,
+# }
+
+# Enable or disable downloader middlewares
+# See https://doc.scrapy.org/en/latest/topics/downloader-middleware.html
+# DOWNLOADER_MIDDLEWARES = {
+#    'JobSpider_lago.middlewares.JobspiderLagoDownloaderMiddleware': 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 = {
+    'JobSpider_lago.pipelines.JobspiderLagoPipelineDefault': 100,
+    # 'JobSpider_lago.pipelines.JobspiderLagoPipelineMySql': 300,
+    'scrapy_redis.pipelines.RedisPipeline': 400,  # 使用Redis内置保存数据的pipline
+}
+
+# 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'