Get value from web site using jsoup - Java HTML

Java examples for HTML:JSoup

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Description

Get value from web site using jsoup

Demo Code



import java.util.HashMap;
import java.util.regex.Pattern;

import org.json.JSONObject;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.select.Elements;

public class TestJsoup {
    private static String url = "http://your site";
    private static Document doc;

    public static void main(String[] argv) {
        getDate(url);/*from w ww  .j a  va 2  s .c  o m*/
    }

    public static void getDate(String url) {
        try {
            HashMap<String, Double> map = new HashMap<String, Double>();
            doc = Jsoup.connect(url).get();
            System.out.println(doc.title());
            Elements table = doc.getElementsByTag("table");
            Elements tbody = table.select("tbody");
            Elements div = tbody
                    .select("div[class=hidden-phone print_show]");
            Elements td = table.select("td[data-table=test]");
            Elements dollar = td
                    .select("td[class=rate-content-cash text-right print_hide]");
            for (int i = 0; i < div.size(); i++) {
                double d = 0;
                if (isNum(dollar.get(i).text())) {
                    d = Double.valueOf(dollar.get(i).text());
                } else {
                    d = 0;
                }
                map.put(div.get(i).text(), d);

                System.out.print(div.get(i).text() + ":");
                System.out.println(dollar.get(i).text());
            }
            pareJSON(map);
        } catch (Exception e) {

        }
    }

    public static boolean isNum(String num) {
        Pattern pattern = Pattern.compile("^([-+]?\\d+)(\\.\\d+)?$");
        return pattern.matcher(num).matches();

    }

    public static void pareJSON(HashMap<String, Double> o) {
        JSONObject j = new JSONObject(o);
        System.out.println(j.get("test1"));
        System.out.println(o.get("test"));
    }
}

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