package com.search.servlet;

import java.io.BufferedInputStream;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
//import java.util.regex.Matcher;
//import java.util.regex.Pattern;





import java.util.logging.Logger;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

import com.search.entitys.Message;
import com.search.impl.Spider;


/** 
 * @Description: TODO(用一句话描述该文件做什么) 
 * @Date:    2017年1月15日 
 * @author:  luoshao
 * @Copyright (c) 2017, www.panyixia.cn , 792435323@qq.com All Rights Reserved.     
 */
public class DoSearchServlet extends HttpServlet {
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	Logger logger = Logger.getLogger(DoSearchServlet.class.getName());

	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		
		req.setCharacterEncoding("utf-8");
		String key = req.getParameter("key");
		
		String currentPage = req.getParameter("currentPage");
		
		//key = new String(key.getBytes("iso8859-1"),"utf-8");   //本地开发需要这句 ，线上不需要这句
		
		// 过滤html标签 ， 空格变成+ 支持多词 搜索
		key = key.replaceAll("<(S*?)[^>]*>.*?|<.*? />", "");
		key = key.replaceAll(" ", "+");
		
		if (currentPage == null || "".equals(currentPage))
			currentPage = "1";
		int first = (Integer.parseInt(currentPage) - 1) * 10 + 1;
		
		String url = "http://cn.bing.com/search?q=site%3Apan.baidu.com+" + key+ "&first=" + first;
		/*String urlStr="https://www.googleapis.com/customsearch/v1element?key=AIzaSyCVAXiUzRYsML1Pv6RwSG1gunmMikTzQqY&rsz=filtered_cse&num=10&hl=en&prettyPrint=false&source=gcsc&gss=.com&sig=8bdfc79787aa2b2b1ac464140255872c&start="+first+"&cx=014027524001724272181:fosdjczvtqc&q="+key+"&sort=&googlehost=www.google.com";
		URL url = new URL(urlStr);
		
		logger.info("---------------"+urlStr);
		
		BufferedReader bufr = new BufferedReader(new InputStreamReader(new BufferedInputStream(url.openStream()),"utf-8"));
	    String line;
	    StringBuffer sb=new StringBuffer();
	    while((line = bufr.readLine())!=null){
	    	sb.append(line);
	    }
	    bufr.close();
	    JSONObject jsonObject=JSONObject.fromObject(sb.toString());
	    JSONArray results=jsonObject.getJSONArray("results");
	    JSONArray r=new JSONArray();
	    List<Message> list = new ArrayList<Message>();
	    Message msg = null;
	    
	    for(int i=0;i<results.size();i++){
	    	JSONObject j=(JSONObject) results.get(i);
	    	msg = new Message();
			msg.setTitle(j.get("title").toString());
			msg.setUrl(j.get("unescapedUrl").toString());
			msg.setContent(j.get("content").toString());
			list.add(msg);
	    }*/
		
		
		Spider spider = new Spider();
		List<Message> list = spider.getList(url);
		
		req.setAttribute("list", list);
		req.setAttribute("key", key);
		
		req.getRequestDispatcher("content.jsp").forward(req, resp);
		
		return;
	}
	
	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		doGet(req, resp);
	}
	
}