Go语言之高级篇Beego框架之爬虫项目实战

一、爬虫项目

 1、爬虫基础

a、网页上面会有相同的数据

b、去重处理

布隆过滤器
哈希存储

c、标签匹配：

正则表达式
beautiful soup或lxml这种标签提取库

d、动态内容

phantomjs

selenium

二、爬豆瓣网电影

网站地址：https://www.douban.com/

准备工作：

1、在数据库中创建表

movie.sql

CREATE TABLE `movie_info` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `movie_id` int(11) unsigned NOT NULL COMMENT '电影id',
  `movie_name` varchar(100) COMMENT '电影名称',
  `movie_pic` varchar(200) COMMENT '电影图片',
  `movie_director` varchar(50) COMMENT '电影导演',
  `movie_writer` varchar(50) COMMENT '电影编剧',
  `movie_country` varchar(50) COMMENT '电影产地',
  `movie_language` varchar(50) COMMENT '电影语言',
  `movie_main_character` varchar(50) COMMENT '电影主演',
  `movie_type` varchar(50) COMMENT '电影类型',
  `movie_on_time` timestamp DEFAULT '0000-00-00 00:00:00' COMMENT '电影上映时间',
  `movie_span` varchar(20) COMMENT '电影时长',
  `movie_grade` varchar(5) COMMENT '电影评分',
  `remark` varchar(500) DEFAULT '' COMMENT '备注',
  `_create_time` timestamp NOT NULL DEFAULT '0000-00-00 00:00:00' COMMENT '创建时间',
  `_modify_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT '修改时间',
  `_status` tinyint(1) DEFAULT '1',
  PRIMARY KEY (`id`),
  KEY `idx_movie_id` (`movie_id`),
  KEY `idx_create_time` (`_create_time`),
  KEY `idx_modify_time` (`_modify_time`)
) ENGINE=InnoDB AUTO_INCREMENT=20 DEFAULT CHARSET=utf8 COMMENT='电影信息表';

2、创建一个新项目

D:GoFilessrcweb>bee new crawl_movice
______
| ___ 
| |_/ /  ___   ___
| ___  / _  / _ 
| |_/ /|  __/|  __/
\____/  \___| \___| v1.10.0
2019/02/16 10:49:19 INFO     ▶ 0001 Creating application...
        create   D:GoFilessrcwebcrawl_movice
        create   D:GoFilessrcwebcrawl_moviceconf
        create   D:GoFilessrcwebcrawl_movicecontrollers
        create   D:GoFilessrcwebcrawl_movicemodels
        create   D:GoFilessrcwebcrawl_movice
outers
        create   D:GoFilessrcwebcrawl_movice	ests
        create   D:GoFilessrcwebcrawl_movicestatic
        create   D:GoFilessrcwebcrawl_movicestaticjs
        create   D:GoFilessrcwebcrawl_movicestaticcss
        create   D:GoFilessrcwebcrawl_movicestaticimg
        create   D:GoFilessrcwebcrawl_moviceviews
        create   D:GoFilessrcwebcrawl_moviceconfapp.conf
        create   D:GoFilessrcwebcrawl_movicecontrollersdefault.go
        create   D:GoFilessrcwebcrawl_moviceviewsindex.tpl
        create   D:GoFilessrcwebcrawl_movice
outers
outer.go
        create   D:GoFilessrcwebcrawl_movice	estsdefault_test.go
        create   D:GoFilessrcwebcrawl_movicemain.go
2019/02/16 10:49:20 SUCCESS  ▶ 0002 New application successfully created!