jsoup : Send search query to Google

By mkyong | Updated: July 30, 2014

Viewed: 314 (+1 pv/w)

Tags: jsoup

This example shows you how to use jsoup to send a search query to Google.

	Document doc = Jsoup
		.connect("https://www.google.com/search?q=mario");
		.userAgent("Mozilla/5.0")
		.timeout(5000).get();

1. jsoup example

Example to send a “mario” search query to Google, parse the search result and filters out the domain name.

package com.mkyong;

import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

public class FunnyCrawler {

  private static Pattern patternDomainName;
  private Matcher matcher;
  private static final String DOMAIN_NAME_PATTERN 
	= "([a-zA-Z0-9]([a-zA-Z0-9\\-]{0,61}[a-zA-Z0-9])?\\.)+[a-zA-Z]{2,6}";
  static {
	patternDomainName = Pattern.compile(DOMAIN_NAME_PATTERN);
  }
	
  public static void main(String[] args) {

	FunnyCrawler obj = new FunnyCrawler();
	Set<String> result = obj.getDataFromGoogle("mario");
	for(String temp : result){
		System.out.println(temp);
	}
	System.out.println(result.size());
  }

  public String getDomainName(String url){
		
	String domainName = "";
	matcher = patternDomainName.matcher(url);
	if (matcher.find()) {
		domainName = matcher.group(0).toLowerCase().trim();
	}
	return domainName;
		
  }
	
  private Set<String> getDataFromGoogle(String query) {
		
	Set<String> result = new HashSet<String>();	
	String request = "https://www.google.com/search?q=" + query + "&num=20";
	System.out.println("Sending request..." + request);
		
	try {

		// need http protocol, set this as a Google bot agent :)
		Document doc = Jsoup
			.connect(request)
			.userAgent(
			  "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)")
			.timeout(5000).get();

		// get all links
		Elements links = doc.select("a[href]");
		for (Element link : links) {

			String temp = link.attr("href");		
			if(temp.startsWith("/url?q=")){
                                //use regex to get domain name
				result.add(getDomainName(temp));
			}

		}

	} catch (IOException e) {
		e.printStackTrace();
	}
		
	return result;
  }

}

Output

Sending request...https://www.google.com/search?q=mario&num=20

www.imdb.com
www.mariobatali.com
www.freemario.org
www.mariogames.be
mario.wikia.com
stabyourself.net
webcache.googleusercontent.com
www.youtube.com
www.huffingtonpost.com
www.mariowiki.com
mario.lancashire.gov.uk
amirulhafiz.deviantart.com
www.mariohugo.com
mariofoods.com
mario.nintendo.com
www.mario2u.com
www.botta.ch
en.wikipedia.org
www.mariotestino.com
www.hubmario.com
www.mariolemieux.org
pouetpu.pbworks.com
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