（四）Jsoup 获取 DOM 元素属性值

第一节： Jsoup 获取 DOM 元素属性值 

 

Jsoup获取DOM元素属性值

 

比如我们要获取博客的href属性值：

 

 

 

我们这时候就要用到Jsoup来获取属性的值 ：

 

我们给下示例代码：

 

package com.javaxk.jsoup;

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;

public class Demo4 {
    
    public static void main(String[] args) throws Exception{
        CloseableHttpClient httpclient = HttpClients.createDefault(); // 创建httpclient实例
        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");
        response.close(); // 关闭流和释放系统资源
         
        Document doc=Jsoup.parse(content); // 解析网页 得到文档对象
         
        Elements linkElements=doc.select("#post_list .post_item .post_item_body h3 a"); //通过选择器查找所有博客链接DOM
        for(Element e:linkElements){
            System.out.println("博客标题："+e.text());
            System.out.println("博客地址："+e.attr("href"));
            System.out.println("target:"+e.attr("target"));
        }
          
        Element linkElement=doc.select("#friend_link").first();
        System.out.println("纯文本："+linkElement.text());
        System.out.println("html："+linkElement.html());
         
        
    }
}