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沈俊林
webmagic
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2efe95e9
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2efe95e9
authored
Aug 09, 2013
by
yihua.huang
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webmagic manual.md
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2efe95e9
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@@ -298,7 +298,26 @@ webmagic-extension包括注解模块。为什么会有注解方式?
注解的核心是Model类,本身是一个POJO,这个Model类用于传递、保存页面最终抓取结果数据。注解方式直接将抽取与数据绑定,以便于编写和维护。
注解方式其实也是通过一个PageProcessor的实现--ModelPageProcessor完成,因此对webmagic-core代码没有任何影响。
注解方式其实也是通过一个PageProcessor的实现--ModelPageProcessor完成,因此对webmagic-core代码没有任何影响。仍然以抓取OschinaBlog的程序为例:
@TargetUrl("http://my.oschina.net/flashsword/blog/\\d+")
public class OschinaBlog {
@ExtractBy("//title")
private String title;
@ExtractBy(value = "div.BlogContent",type = ExtractBy.Type.Css)
private String content;
@ExtractBy(value = "//div[@class='BlogTags']/a/text()", multi = true)
private List<String> tags;
public static void main(String[] args) {
OOSpider.create(
Site.me().addStartUrl("http://my.oschina.net/flashsword/blog"),
new ConsolePageModelPipeline(), OschinaBlog.class).run();
}
}
注解部分包括以下内容:
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