一，導入依賴
org.jsoup
jsoup
1.10.3
org.apache.httpcomponents
httpclient
二，編寫demo類
注意不要導錯包了,是org.jsoup.nodes下面的
package com.taotao.entity;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import java.io.IOException;
/**
* Author: TaoTao 2019/9/26
*/
public class intefaceTest {
public static void main(String[] args) throws IOException {
CloseableHttpClient httpClient = HttpClients.createDefault();//創建httpClient
HttpGet httpGet = new HttpGet("http://www.cnblogs.com/");//創建httpget實例
CloseableHttpResponse response = httpClient.execute(httpGet);//執行get請求
HttpEntity entity = response.getEntity();//獲取返回實體
String content = EntityUtils.toString(entity,"utf-8");//網頁內容
response.close();//關閉流和釋放系統資源
Jsoup.parse(content);
Document doc = Jsoup.parse(content);//解析網頁得到文檔對象
Elements elements = doc.getElementsByTag("title");//獲取tag是title的所有dom文檔
Element element = elements.get(0);//獲取第一個元素
String title = element.text(); //.html是返回html
System.out.println("網頁標題："+title);
Element element1 = doc.getElementById("site_nav_top");//獲取id=site_nav_top標簽
String str = element1.text();
System.out.println("str:"+str);
}
}
標簽：http,title,入門教程,jsoup,爬取,Jsoup,import,apache,org
來源： https://www.cnblogs.com/book-mountain/p/11595018.html
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