Main.java

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

import Crawl.LinkEvent;

import java.io.IOException;

import java.util.HashMap;
import java.util.List;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.Map;

import java.io.FileWriter;

public class Main {
 public static boolean checkOneLevelUrl(String url) {
 try {
 // Fetch the HTML content from the URL
 Document doc = Jsoup.connect(url).get();

 // Check if the desired class exists in the parsed document
 boolean hasInfoboxVevent = doc.select(".infobox.vevent").size() > 0;

 // Print the result
 if (hasInfoboxVevent) {
 return true;
 } else {
 return false;
 }
 } catch (IOException e) {
 return false;
 }
 }

 public static void infobox(String url) throws IOException {
 // Map<String, String> instance = null;
 try {
 // instance = new HashMap<String, String>(10000);
 Document docChild = Jsoup.connect(url).get();
 Element content = docChild.getElementsByClass("infobox vevent").first();

 Element des = content.getElementsMatchingOwnText("Địa điểm").first();
 String destination = des.nextElementSibling().text();

 Element re = content.getElementsMatchingOwnText("Kết quả").first();
 String result = re.nextElementSibling().text();

 Element trElement = content.select("tr:has(th:containsOwn(Tham chiến))").first();
 Element army = trElement.nextElementSibling();
 Elements thamchien = army.select("a[href]");

 List<String> trieudai = new ArrayList<>();
 for (Element i : thamchien)
 trieudai.add(i.text());
 String tdLienQuan = String.join(", ", trieudai);

 Element trElement2 = content.select("tr:has(th:containsOwn(Chỉ huy))").first();
 Element leader = trElement2.nextElementSibling();
 Elements chihuy = leader.select("a[href]");

 List<String> nhanvat = new ArrayList<>();
 for (Element i : chihuy)
 nhanvat.add(i.text());
 String nvLienQuan = String.join(", ", nhanvat);

 Element trElement3 = content.select("tr:has(th:containsOwn(Lực lượng))").first();
 Element number = trElement3.nextElementSibling();

 Element firstNB = number.select("td").first();
 Element secondNB = number.select("td").last();

 String lucluong1 = "Bên 1 " + firstNB.text();
 String lucluong2 = "Bên 2 " + secondNB.text();

 Element trElement4 = content.select("tr:has(th:containsOwn(Thương vong))").first();
 Element death = trElement4.nextElementSibling();

 Element firstD = death.select("td").first();
 Element secondD = death.select("td").last();

 String thuongvong1 = "Bên 1 " + firstD.text();
 String thuongvong2 = "Bên 2 " + secondD.text();

 System.out.println("Kết quả: " + result);
 System.out.println("Địa điểm liên quan: " + destination);
 System.out.println("Triều đại liên quan (Tham chiến): " + tdLienQuan);
 System.out.println("Nhân vật liên quan (Chỉ huy): " + nvLienQuan);
 System.out.println("Lực lượng: " + lucluong1 + ", " + lucluong2);
 System.out.println("Thương vong: " + thuongvong1 + ", " + thuongvong2);
 } catch (IOException e) {
 e.printStackTrace();
 }
 }

 public static String theloai(String url) throws IOException {
 String returnString = "";
 try {
 Document doc = Jsoup.connect(url).get();
 Element div = doc.select("div#mw-normal-catlinks").first();
 Element elementul = div.select("ul").first();
 Elements elementli = elementul.select("li");
 List<String> theloai = new ArrayList<>();
 for (Element e : elementli)
 theloai.add(e.text());
 returnString = String.join(", ", theloai);
 } catch (IOException e) {
 e.printStackTrace();
 }
 return returnString;
 }

 public static String contentInfoBox(String element) throws IOException {
 String returnString = "";
 Document doc = Jsoup.connect(
 "https://vi.wikipedia.org/wiki/Chi%E1%BA%BFn_tranh_H%C3%A1n%E2%80%93Vi%E1%BB%87t_(42%E2%80%9343)")
 .get();
 Element content = doc.getElementsByClass("infobox vevent").first();
 Element contentSpecial = content.getElementsMatchingOwnText(element).first();

 if (contentSpecial != null && contentSpecial.nextElementSibling() != null) {
 returnString = returnString + contentSpecial.nextElementSibling().text();
 }
 return returnString;
 }

 public static void mota(String url) throws IOException {
 Document doc = Jsoup.connect(url).get();
 Element div = doc.select("div.mw-parser-output").first();
 Elements paragraphs = div.select("p");
 Element pElement = paragraphs.get(0);
 System.out.println(pElement);
 }

 public static void list(String url) throws IOException {
 Document doc = Jsoup.connect(url).get();
 Element divElements = doc.select("div[style=\"padding:0em 0.25em\"]").first();
 Elements href = divElements.select("a");
 for (Element i : href) {
 String linkUrl = i.attr("abs:href");
 //System.out.println(linkUrl);
 if (checkOneLevelUrl(linkUrl)) {
 System.out.println(linkUrl);
 System.out.println(i.text());
 }
 }
 }

 public static void image(String url) throws IOException{
 try {
 // instance = new HashMap<String, String>(10000);
 Document docChild = Jsoup.connect(url).get();
 Element content = docChild.getElementsByClass("infobox vevent").first();
 Element image = content.selectFirst("img");
 String imageUrl = image.attr("abs:src");
 }catch (IOException e) {
 e.printStackTrace();
 }
 }
 public static void main(String[] args) throws IOException {
 // System.out
 // .println(theloai("https://vi.wikipedia.org/wiki/Chi%E1%BA%BFn_tranh_T%E1%BA%A7n%E2%80%93Vi%E1%BB%87t"));
 //System.out.println(contentInfoBox("Thời gian"));
 //list("https://vi.wikipedia.org/wiki/Hi%E1%BB%87p_%C4%91%E1%BB%8Bnh_Paris_1973");
 image("https://vi.wikipedia.org/wiki/Chi%E1%BA%BFn_tranh_H%C3%A1n%E2%80%93Nam_Vi%E1%BB%87t");
 }
}