Lowden

import org.htmlparser.filters.*;
import org.htmlparser.*;
import org.htmlparser.nodes.*;
import org.htmlparser.tags.*;
import org.htmlparser.util.*;
import org.htmlparser.visitors.*;

public class AstroExtractor {
public static void main(String[] args)
{
String title=null;//标题
String constellation;//星座
String body=null;//主要内容
try{
Parser parser = new Parser("http://astro.sina.com.cn/pc/west/frame0_8.html");
parser.setEncoding("gb2312");

//修改后的，提取日期,已经正确
NodeFilter filter_constellation_summary=new AndFilter(new TagNameFilter("li"),
new HasAttributeFilter("class","datea"));

//修改后的,"健康指数"等等,有问题,不能正确提取
NodeFilter filter_title=new AndFilter(new TagNameFilter("div"),
new HasAttributeFilter("class","tab"));

//修改后的，已经正确
NodeFilter filter_body=new AndFilter(new TagNameFilter("div"),
new HasAttributeFilter("class","lotconts"));


NodeList nodelist=parser.parse(filter_constellation_summary);
Node node_constellation=nodelist.elementAt(0);
//提取星座信息

constellation=node_constellation.getFirstChild().toHtml();
/*
Node node_summary=nodelist.elementAt(1);
NodeList summary_nodelist=node_summary.getChildren();
//提取总结信息
summary=summary_nodelist.elementAt(3).toHtml();
*/
//重置parser
parser.reset();

nodelist=parser.parse(filter_title);
TextExtractingVisitor visitor1=new TextExtractingVisitor();
NodeIterator it=nodelist.elements();
while(it.hasMoreNodes())
{
Node node_title=(Node)it.nextNode();
//title+=node_title.getFirstChild().toHtml();
Parser title_parser=new Parser(node_title.toHtml());
title_parser.visitAllNodesWith(visitor1);
title=visitor1.getExtractedText();
//System.out.println("temp is"+temp);
//title=title+temp+"\n";
}

parser.reset();


//过滤内容信息
nodelist=parser.parse(filter_body);
Node node_body=nodelist.elementAt(0);
body=node_body.getFirstChild().toHtml()+node_body.getLastChild().toHtml();

System.out.println(constellation.trim());
System.out.println(title);
System.out.println(body.trim());
//System.out.println(summary.trim());

}catch(Exception e)
{
e.printStackTrace();
}

}

}