import scrapy class ErshoufangSpider(scrapy.Spider): name = 'ershoufang' allowed_domains = ['maitian.com '] start_urls = ['http://maitian.com/'] def parse(self, response): pass zufang_spider.py import scrapy from maitian.items import MaitianItem class MaitianSpider(scrapy.Spider): name = "zufang" start_urls = ['http://bj.maitian.cn/zfall/PG1'] def parse(self, response): ' SPIDER_MODULES = ['maitian.spiders'] NEWSPIDER_MODULE = 'maitian.spiders' # Crawl responsibly by
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# -*- coding: utf-8 -*- # Scrapy settings for maitian project # # For simplicity, this file contains downloader-middleware.html # https://doc.scrapy.org/en/latest/topics/spider-middleware.html BOT_NAME = 'maitian ' SPIDER_MODULES = ['maitian.spiders'] NEWSPIDER_MODULE = 'maitian.spiders' #不能批量设置 # Crawl responsibly by identifying yourself (and your website) on the user-agent USER_AGENT = 'maitian (+http://www.yourdomain.com )' #默认遵守robots协议 # Obey robots.txt rules ROBOTSTXT_OBEY = False #设置日志文件 LOG_FILE="maitian.log" #日志等级分为
---- 准备工作 麦田房产二手房页面(http://bj.maitian.cn/esfall/PG1)。 ? 麦田房产租房页面(http://bj.maitian.cn/zfall/PG1)。 ? 用Scrapy shell验证二手房XPath表达式 scrapy shell "http://bj.maitian.cn/esfall/PG1" title response.xpath('//div ' SPIDER_MODULES = ['maitian.spiders'] NEWSPIDER_MODULE = 'maitian.spiders' # Crawl responsibly by 用mongo命令打开MongoDB终端,然后输入以下命令查看结果: use maitian1 db.zufang.find() 可以看到 ? ' SPIDER_MODULES = ['maitian.spiders'] NEWSPIDER_MODULE = 'maitian.spiders' SCHEDULER = "scrapy_redis.scheduler.Scheduler
首先创建项目: scrappy start project maitian 第二步: 明确要抓取的字段items.py import scrapy class MaitianItem(scrapy.Item scrapy.Spider 2.2 自定义爬取名, name="" 后面运行框架需要用到; 2.3 定义爬取目标网址 2.4 定义scrapy的方法 下面是简单项目: import scrapy from maitian.items import MaitianItem class MaitianSpider(scrapy.Spider): name = "zufang" start_urls = ['http://bj.maitian.cn ITEM_PIPELINES = {'maitian.pipelines.MaitianPipeline': 300,} MONGODB_HOST = '127.0.0.1' MONGODB_PORT = 27017 MONGODB_DBNAME = 'maitian' MONGODB_DOCNAME = 'zufang' 第五步: 通过管道pipelines.py 连接上面的操作 import pymongo
article/details/122009320 医院-开发文档:https://gitee.com/zidieq/hospital 第四阶段 讲师目录:https://blog.csdn.net/maitian 讲师Gitee:https://gitee.com/JasonCN2008/GitCGB2109IVProjects 第一部分 微服务架构最佳实践 总目录:https://blog.csdn.net/maitian 微服务工程中用户行为日志的记录:https://yutian.blog.csdn.net/article/details/121141417 微服务课上问题分析及总结:https://blog.csdn.net/maitian _2008/article/details/122043927 第二部分 Docker运维技术最佳实践 总目录:https://blog.csdn.net/maitian_2008/category_11285781 spm=1001.2014.3001.5482 第三部分 Redis分布式缓存最佳实践 总目录:https://blog.csdn.net/maitian_2008/category_11166577.
id="item_description"]/text()').extract() return item ---- 感觉还是xpath更好用,还是用麦田租房举例子:http://bj.maitian.cn
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