Jsoup-- Jsoup获取DOM元素属性值

Posted 2020-10-07 听歌敲代码

1.获取博客园的博客标题以及博客地址，获取友情链接

   

2.代码实现：

public static void main(String[] args) throws Exception{
        // 创建httpClient实例
        CloseableHttpClient httpClient = HttpClients.createDefault();
        // 创建httpGet实例
        HttpGet httpGet = new HttpGet("http://www.cnblogs.com");
        httpGet.setHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Firefox/45.0");
        CloseableHttpResponse response = httpClient.execute(httpGet);
        String content = null;
        if(response != null){
            HttpEntity entity = response.getEntity();   
            content = EntityUtils.toString(entity, "UTF-8");  // 获取网页内容
            Document document = Jsoup.parse(content);  // 解析网页，得到文档对象
            
            // 1.通过选择器查找所有博客标题以及链接
            Elements ele = document.select("#post_list .post_item .post_item_body h3 a");
            for(Element e : ele){
                System.out.println("博客标题：" + e.text() + "---博客地址：" + e.attr("href"));
            }
            
            // 2.获取友情链接
            Element linkEle = document.select("#friend_link").first();
            System.out.println("友情链接纯文本：" + linkEle.text());
            System.out.println("友情链接html：" + linkEle.html());
        }
        if(response != null){
            response.close();
        }
        if(httpClient != null){
            httpClient.close();
        }
    }

3.Jsoup学习地址

　　开源博客系统-Jsoup