按照国际惯例,我首先应该介绍下Jsoup是个什么东西,然后在介绍下具体用法,然后在来个demo演示,其实我也是这么想的,小编今天花了一天的时间从学习—>解析页面,总算是成果圆满了吧,啊哈,但是,一个不会总结的程序猿不是一个帅气的程序猿,啊哈,这就意味着我是个帅气的猿猿
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一、什么是Jsoup?
官网网站:http://jsoup.org/
可在官网下载对应的jar
通俗的将Jsoup就是一个解析网页的东西,然后我们在看下官方的解释:
官方解释就是高大上~
二、Jsoup的基本用法(http://www.open-open.com/jsoup/parsing-a-document.htm)
网站写的很详细,我想聪明的大家看看开发文档一看就懂…恩,有道理,正所谓帅的人都能看懂..
三、demo演示 解析的url:http://sex.guokr.com/
写在前面:忽略链接内容,小编就是找到一个不错的网站~,啊哈,别想歪了
1.解析一个ul –>li
我们来看下这段的源代码:
由此我们知道了大体的样子,现在我们来写编码
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements; import java.io.IOException; /**
* 使用Jsoup解析url
* @tag:url :http://sex.guokr.com/
* Created by monster on 2015/12/11.
*/
public class JsoupZX {
public static void main(String[] args){
final String url="http://sex.guokr.com/" ; try { Document doc = Jsoup.connect(url).get(); Elements container = doc.getElementsByClass("container"); Document containerDoc = Jsoup.parse(container.toString()); Elements module = containerDoc.getElementsByClass("module-list"); Document moduleDoc = Jsoup.parse(module.toString()); //Elements clearfix = moduleDoc.getElementsByClass("clearfix"); //DOM的形式 Elements clearfix = moduleDoc.select(".clearfix"); //选择器的形式 for (Element clearfixli : clearfix){
Document clearfixliDoc = Jsoup.parse(clearfixli.toString());
Elements kind = clearfixliDoc.select(".board-tag"); //选择器的形式
Elements title = clearfixliDoc.select(".tit-post");
Elements author = clearfixliDoc.select("span a"); System.out.println("类别"+kind.text()); //分类
System.out.println("标题"+title.text()); //标题
System.out.println("作者"+author.text()); //作者
System.out.println("详情链接"+title.attr("href")); //标题下的链接 System.out.println("====================="); }
// String title = clearfixli.getElementsByTag("a").text(); // System.out.println(clearfix); } catch (IOException e) {
e.printStackTrace();
}
}
}
结果:
=================================================================================================
2.解析详情页面和评论
链接:http://sex.guokr.com/post/1100992/
上述就是页面的内容
然后我们看下源码:
内容:
评论:
看完源码后,我们进行编码:
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements; import java.io.IOException; /**
* 使用Jsoup解析帖子详情和评论
* @tag: url:http://sex.guokr.com/post/1100992/
* Created by monster on 2015/12/11.
*/
public class JSoupDetail { public static void main(String args[]){
final String url= "http://sex.guokr.com/post/1100992/"; try { Document doc = Jsoup.connect(url).get(); Elements container = doc.getElementsByClass("container"); Document containerDoc = Jsoup.parse(container.toString()); String articleTitle = containerDoc.getElementById("articleTitle").text();
String authorName = containerDoc.getElementById("authorName").text();
String time = containerDoc.select("span").first().text();
String imgphotoUrl=containerDoc.select("img").get(1).attr("src");
System.out.println("标题:" + articleTitle); //标题
System.out.println("作者:"+authorName); //作者
System.out.println("发布时间:"+time); //发布时间
System.out.println("作者头像的url:"+imgphotoUrl); //发布时间 Element articleContent = containerDoc.getElementById("articleContent");
Document articleContentDoc = Jsoup.parse(articleContent.toString()); int size= articleContentDoc.select("p").size();
System.out.println("段落数:"+size); System.out.println("帖子内容:"); for (int i=0;i<size;i++){
String content = articleContentDoc.select("p").get(i).text();
System.out.println(content);
} System.out.println("================================================");
System.out.println("帖子评论区域(按照楼层分布)"); Elements cmts =containerDoc.getElementsByClass("cmts");
Document cmtsDoc = Jsoup.parse(cmts.toString());
System.out.println("评论楼层:"+cmtsDoc.select("span").first().text()); Elements cmtslist =cmtsDoc.getElementsByClass("cmts-list"); for (Element clearfix:cmtslist){
String user = clearfix.select("a").get(1).text();
String userPhotoUrl =clearfix.select("img").get(0).attr("src");
String replyTime = clearfix.select("a").get(3).text();
String floor=clearfix.select("span").text(); System.out.println("评论者:"+user+"\n"+"评论者头像url:"+userPhotoUrl+"\n"+"回复时间:"+replyTime+"\n"+"所在楼层:"+floor);
Document replyContentDoc = Jsoup.parse(clearfix.toString());
Elements replyContent = replyContentDoc.getElementsByClass("cmt-content");
System.out.println("评论内容:");
int s =replyContent.select("p").size();
for (int j=0;j<s;j++){
String replycontent = replyContent.select("p").get(j).text();
System.out.println(replycontent); }
System.out.println("================================================");
} } catch (IOException e) {
e.printStackTrace();
} } }
输出结果:
--------->
以上就是小编的demo,写的有点简单,希望理解,啊哈~
另外:欢迎关注小编的博客,么么哒