Scrapy command-line tool

The default project structure 1.Scrapy

scrapy.cfg
myproject/
    __init__.py
    items.py
    middlewares.py
    pipelines.py
    settings.py
    spiders/
        __init__.py
        spider1.py
        spider2.py
        ...

scrapy.cfgThere lies the root directory of the project. This file contains a description of the configuration file.

[settings]
default = myproject1.settings
project1 = myproject1.settings
project2 = myproject2.settings

It will be used by default defaultthis configuration. You can use SCRAPY_PROJECTenvironment variables to specify a different projects.

export SCRAPY_PROJECT=project2
scrapy settings --get BOT_NAME

Use 2.scrapy tools

Run directly help explain:

scrapy

Create a project:

scrapy startproject myproject [project_dir]

Control Project:

scrapy genspider mydomain mydomain.com  # 创建一个新的Spider

Tools available commands:

scrapy -h  # 查看所有可用命令
scrapy <command> -h  # 查看对应命令的帮助

全局命令：
startproject：scrapy startproject <project_name> [project_dir]  # 创建项目
genspider：scrapy genspider [-t template] <name> <domain>  # 创建新的Spider
settings：scrapy settings [options]  # 获取配置
runspider：scrapy runspider <spider_file.py>  # 运行Python文件里的Spider，不需要创建项目
shell：scrapy shell [url]  # 启动Scrapy交互终端，可用于调试
fetch：scrapy fetch <url>  # 使用Scrapy下载器下载给定的URL，并将获取的内容送到标准输出
view：scrapy view <url>  # 浏览器中打开URL
version：scrapy version [-v]  # 打印版本

项目命令：
crawl：scrapy crawl <spider>  # 使用spider进行爬取
check：scrapy check [-l] <spider>  # 运行contract检查
list：scrapy list  # 列出当前项目可用的所有spider
edit：scrapy edit <spider>  # 使用EDITOR环境变量中设定的编辑器编辑spider
parse：scrapy parse <url> [options]  # 获取给定的URL并使用spider分析处理
bench：scrapy bench  # 运行benchmark测试