需求:

需要采集js渲染的页面,有些网站的页面是js渲染的

实现:

基于HtmlUnit实现:

  1. public static void getAjaxPage() throws Exception{  
  2.     WebClient webClient = new WebClient();  
  3.     webClient.setJavaScriptEnabled(true);  
  4.     webClient.setCssEnabled(false);  
  5.     webClient.setAjaxController(new NicelyResynchronizingAjaxController());  
  6.     webClient.setTimeout(Integer.MAX_VALUE);  
  7.     webClient.setThrowExceptionOnScriptError(false);  
  8.     HtmlPage rootPage = webClient.getPage("http://tt.mop.com/read_14304066_1_0.html");  
  9.  
  10.     System.out.println(rootPage.asXml());  

maven依赖:

  1. <dependency> 
  2.     <groupId>net.sourceforge.htmlunit</groupId> 
  3.     <artifactId>htmlunit-core-js</artifactId> 
  4.     <version>2.9</version> 
  5.     <scope>compile</scope> 
  6. </dependency> 
  7. <dependency> 
  8.     <groupId>net.sourceforge.htmlunit</groupId> 
  9.     <artifactId>htmlunit</artifactId> 
  10.     <version>2.9</version> 
  11.     <scope>compile</scope> 
  12. </dependency> 

说明:

Nutch插件:nutch-htmlunit用于替换Nutch自身的Http Fetch组件