一，导入依赖
org.jsoup
jsoup
1.10.3
org.apache.httpcomponents
httpclient
二，编写demo类
注意不要导错包了,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();//创建httpClient
HttpGet httpGet = new HttpGet("http://www.cnblogs.com/");//创建httpget实例
CloseableHttpResponse response = httpClient.execute(httpGet);//执行get请求
HttpEntity entity = response.getEntity();//获取返回实体
String content = EntityUtils.toString(entity,"utf-8");//网页内容
response.close();//关闭流和释放系统资源
Jsoup.parse(content);
Document doc = Jsoup.parse(content);//解析网页得到文档对象
Elements elements = doc.getElementsByTag("title");//获取tag是title的所有dom文档
Element element = elements.get(0);//获取第一个元素
String title = element.text(); //.html是返回html
System.out.println("网页标题："+title);
Element element1 = doc.getElementById("site_nav_top");//获取id=site_nav_top标签
String str = element1.text();
System.out.println("str:"+str);
}
}
标签：http,title,入门教程,jsoup,爬取,Jsoup,import,apache,org
来源： https://www.cnblogs.com/book-mountain/p/11595018.html
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