（四）Jsoup 獲取 DOM 元素屬性值

第一節： Jsoup 獲取 DOM 元素屬性值 

 

Jsoup獲取DOM元素屬性值

 

比如我們要獲取博客的href屬性值：

 

 

 

我們這時候就要用到Jsoup來獲取屬性的值 ：

 

我們給下示例代碼：

 

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(); // 創建httpclient實例
        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");
        response.close(); // 關閉流和釋放系統資源
         
        Document doc=Jsoup.parse(content); // 解析網頁 得到文檔對象
         
        Elements linkElements=doc.select("#post_list .post_item .post_item_body h3 a"); //通過選擇器查找所有博客鏈接DOM
        for(Element e:linkElements){
            System.out.println("博客標題："+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("純文本："+linkElement.text());
        System.out.println("html："+linkElement.html());
         
        
    }
}