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README
Apache-2.0

GoldDataSpider

介绍

金色数据采集器开源项目,是用于抓取网页和抽取数据的工具。其核心代码是从金色数据采集与融合平台分离而来。

该项目提供抓取和抽取来自网页数据,不仅可以抽取网页内的内容,还能抽取URL、HTTP报头、Cookie里的数据。

该项目定义了一种简洁、灵活、敏捷的结构或者说是规则语法。极尽其所能将网页内容、HTTP报头、Cookie、甚至关联其它网页、其它网站数据,抽取出有意义有价值数据字段,组成一条数据记录。除此之外,还能内嵌http请求,以补充数据字段,比如某些字段需要向词典提供翻译这样的字段等等。

该项目还可支持从各种类型文档抽取数据,比如html/xml/json/javascript/text等。

完全免费的GoldData社区版

GoldData社区版是一款抓取完全不受限(比如不限爬虫数量、抓取速度/时间、数据抓取数量、导出数据数量)的私有云软件,

我们提供了详细的金色数据平台免费文档和培训视频,请点击这里查看和使用。

添加QQ交流群:718556263。如果是在oschina或者github对本项目点赞将赠送一个月的专业版许可证。

技术优势

GoldData VS Scrapy

GoldData Scrapy
优势 1、规则简洁灵活易写,提供辅助可视化/源码编辑器
2、可反复采集数据而不产生重复
3、可同时将数据及数据关系抓取融入到数据库中
1、基于python脚本
2、第三方资料较多
3、国际化优势
劣势 目前只提供mysql数据库对接 规则与python脚本代码混合,难以维护

GoldData VS spiderman/spiderman2

GoldData spiderman/spiderman2
优势 1、规则简洁灵活易写,提供辅助可视化/源码编辑器
2、可反复采集数据而不产生重复
3、可同时将数据及数据关系抓取融入到数据库中
劣势 目前只提供mysql数据库对接 脚本庞大,难以维护

GoldData VS 其它商业采集器

GoldData 其它商业采集器
优势 1、规则简洁灵活易写,提供辅助可视化/源码编辑器
2、可反复采集数据而不产生重复
3、可同时将数据及数据关系抓取融入到数据库中
4、提供完全免费不受限的数据采集功能
1、提供“可视化”采集
劣势 1、目前只提供mysql数据库对接
2、不提供"可视化"采集
1、大多情况需写脚本,“可视化”很鸡肋
2、免费版通常限制采集数量、导出数量或者爬虫数量

使用入门

首先,我们需要将依赖加入项目当中即可(因为我们已经将该项目加入到maven中央仓库),如下:

1、对于maven项目

<dependency>
  <groupId>com.100shouhou.golddata</groupId>
  <artifactId>golddata-spider</artifactId>
  <version>1.1.4</version>
</dependency>

2、对于gradle项目

 compile group: 'com.100shouhou.golddata', name: 'golddata-spider', version: '1.1.4'

然后你将可以使用该依赖所提供的简洁清晰的API,如下:

@Test
public void testGoldSpider(){
    String ruleContent=
            "    {                                                      \n"+
            "      __node: li.sky.skyid                                 \n"+
            "      date:                                                \n"+
            "      {                                                    \n"+
            "        expr: h1                                           \n"+
            "        __label: 日期                                      \n"+
            "      }                                                    \n"+
            "      sn:                                                  \n"+
            "      {                                                    \n"+
            "                                                           \n"+
            "        js: md5(baseUri+item.date+headers['Content-Type']);\n"+
            "      }                                                    \n"+
            "      weather:                                             \n"+
            "      {                                                    \n"+
            "        expr: p.wea                                        \n"+
            "      }                                                    \n"+
            "      temprature:                                          \n"+
            "      {                                                    \n"+
            "        expr: p.tem>i                                      \n"+
            "      }                                                    \n"+
            "    }                                                      \n";
    GoldSpider spider= com.xst.golddata.GoldSpider.newSpider()
            .setUrl("http://www.weather.com.cn/weather/101020100.shtml")
            .setRule(ruleContent)
            .request();
    List list=spider.extractList();
    // List<Weather> weathers=spider.extractList(Weather.class);
    // Weather weathers=spider.extractFirst(Weather.class);
   list.forEach( System.out::println);
}

运行上面的测试,你将可以看类似下面的输出:

{date=19日(今天), weather=阴转小雨, temprature=10℃, sn=8bc265cb2bf23b6764b75144b255d81d}
{date=20日(明天), weather=小雨转多云, temprature=11℃, sn=9efd7e7bbbfb9bb06e04c0c990568bfd}
{date=21日(后天), weather=多云转中雨, temprature=11℃, sn=728539ac882721187741708860324afa}
{date=22日(周六), weather=小雨, temprature=9℃, sn=a23fa2233e750a3bdd11b2e200ed06c3}
{date=23日(周日), weather=小雨转多云, temprature=8℃, sn=b27e1b8a8e92a7bed384ceb3e4fdfb5f}
{date=24日(周一), weather=多云转小雨, temprature=8℃, sn=c142b7fd12330ca031dd96b307c0d50d}
{date=25日(周二), weather=小雨转中雨, temprature=6℃, sn=16f71d3c8f09394588532a3ed1a8bacf}

当作Service或者API使用

你可以在项目中,可以当作调用服务和API使用。例如如下:

@Service
public class WeatherServiceImpl implements WeatherService{

	public List<Weather> listByCityId(Long cityId){
		String url="http://www.weather.com.cn/weather/"+cityId+".shtml"
	    String rule="<同上>"
		GoldSpider spider= com.xst.golddata.GoldSpider.newSpider()
						.setUrl(url)
						.setRule(ruleContent)
						.request();
            
        return spider.extractList(Weather.class);    
	}
}

另外,你可以免费使用可视化辅助编辑器来编辑规则内容, 可视化辅助编辑器来自金色数据平台,可以点击链接下载,可视化编辑器截屏如下:

可视化编辑器

文档和培训视频

规则内容以及文档请点击此处查看

你可以查看oschina的与金色数据相关博文, https://my.oschina.net/u/4095696?tab=newest

许可证

Golddata-Spider 采用Apache License, Version 2.0 协议。

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简介

1、规则简洁灵活易读易写 2、可反复采集数据而不产生重复 3、可同时将数据及数据关系采集融合 4、支持ajax 5、文档和培训视频齐全 。其核心代码从GoldData平台分离而来 展开 收起
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