protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    InitView();
    MainThread mt = new MainThread(newsUrl);
    final Thread t = new Thread(mt, "MainThread");
    t.start();

    pullListView.setOnRefreshListener(new PullListView.OnRefreshListener() {
      @Override
      public void onRefresh() {
        isGetMore = false;
        MainThread mt = new MainThread(newsUrl);
        Thread t = new Thread(mt, "MainThread");
        t.start();

      }
    });

    pullListView.setOnGetMoreListener(new PullListView.OnGetMoreListener() {
      @Override
      public void onGetMore() {
        isGetMore = true;
        if (num > 1) {
          MainThread mt = new MainThread(nextPage);
          Thread t = new Thread(mt, "MainThread");
          t.start();
        }

      }
    });
    pullListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
      @Override
      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        Intent intent = new Intent(MainActivity.this,NewsActivity.class);
        intent.putExtra("url",list.get(position-1).getUrl());
        startActivity(intent);

      }
    });

  }

package com.example.katherine_qj.news;

import android.net.http.HttpResponseCache;
import android.util.Log;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

/**
 * Created by Katherine-qj on 2016/7/24.
 */
public class NetWorkClass {
  public String getDataByGet(String url){
    Log.e("qwe","content");
    String content ="";
    HttpClient httpClient = new DefaultHttpClient();
    Log.e("qwe","content1");
    /*使用HttpClient发送请求、接收响应很简单，一般需要如下几步即可。
    1. 创建HttpClient对象。
    2. 创建请求方法的实例，并指定请求URL。如果需要发送GET请求，创建HttpGet对象；如果需要发送POST请求，创建HttpPost对象。
    3. 如果需要发送请求参数，可调用HttpGet、HttpPost共同的setParams(HetpParams params)方法来添加请求参数；对于HttpPost对象而言，也可调用setEntity(HttpEntity entity)方法来设置请求参数。
    4. 调用HttpClient对象的execute(HttpUriRequest request)发送请求，该方法返回一个HttpResponse。
    5. 调用HttpResponse的getAllHeaders()、getHeaders(String name)等方法可获取服务器的响应头；调用HttpResponse的getEntity()方法可获取HttpEntity对象，该对象包装了服务器的响应内容。程序可通过该对象获取服务器的响应内容。
    6. 释放连接。无论执行方法是否成功，都必须释放连接*/
    HttpGet httpGet = new HttpGet(url);
    try {
      HttpResponse httpResponse = httpClient.execute(httpGet);
      // HttpReponse是服务器接收到浏览器的请求后，处理返回结果常用的一个类。
      if(httpResponse.getStatusLine().getStatusCode() == 200) {
        /*getStatusLine()
        获得此响应的状态行。状态栏可以设置使用setstatusline方法之一，也可以在构造函数初始化*/
        InputStream is = httpResponse.getEntity().getContent();
        /*getEntity()
        获取此响应的消息实体，如果有。实体是通过调用setentity提供。*/
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        String line;
        while ((line = reader.readLine()) != null){
          content += line;
        }
      }
    }catch (IOException e)
    {
      Log.e("http",e.toString());
    }
    Log.e("sdf",content);
    return content;
  }
}

 public class MainThread implements Runnable{
    private String url;
    public MainThread(String url){
      this.url = url;
    }
    @Override
    public void run() {
      NetWorkClass netWorkClass =new NetWorkClass();//new 了一个network类
      content = netWorkClass.getDataByGet(url);//接收这个类返回的那个字符串也就是需要解析的那一串
      Log.e("qwe",content);
      handler.sendEmptyMessage(111);
    }
  }

   private final android.os.Handler handler = new android.os.Handler(){
    public void handleMessage(Message msg){
      switch (msg.what){
        case 111:
          analyseHTML();
          if(isGetMore){
            mainAdapter.notifyDataSetChanged();
      /*每一次notifyDataSetChange()都会引起界面的重绘。当需要修改界面上View的相关属性的时候，
       最后先设置完成再调用notifyDataSetChange()来重绘界面。*/
          }else {
            mainAdapter = new MainAdapter(MainActivity.this, list);
            pullListView.setAdapter(mainAdapter);
          }
          pullListView.refreshComplete();
          pullListView.getMoreComplete();
          break;
      }
    }
   };

 public void analyseHTML(){
     if(content!=null){
       int x= 0;
       Document document = Jsoup.parse(content);
       //解析HTML字符串
       if (!isGetMore) {
         list.clear();
         Element element = document.getElementById("fanye3942");//拿到fanye3942这个节点
         String text = element.text();//得到这个节点的文本部分
         System.out.print(text);
         num = Integer.parseInt(text.substring(text.lastIndexOf('/') + 1, text.length() - 1));
         System.out.print(num);
       }
         Elements elements = document.getElementsByClass("c3942");//得到c3942这个节点中的所有子节点
         while(true){
          if(x==elements.size()){
            System.out.print(elements.size());
            break;//遍历到最后就退出
          }
           News news = new News();
           news.setTitle(elements.get(x).attr("title"));//分别得到每一个子节点的需要的文本部分
           news.setUrl(elements.get(x).attr("href"));
          // list.add(news);
           if (!isGetMore||x>10){
             list.add(news);
             if(x>=25){
               break;
             }//这个是因为我们学校的网页有重复
           }
           x++;

         }
         if (num>1){
           nextPage = url+"/"+ --num+".htm";//因为有翻页这里得到了下一页的url在上拉的时候会开启线程去请求数据
           System.out.println("qqqqqqqqqqq"+nextPage);
         }

       }
     }

package com.example.katherine_qj.news;

import android.app.Activity;
import android.os.Bundle;
import android.os.Message;
import android.util.Log;
import android.widget.EditText;
import android.widget.TextView;

import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;

/**
 * Created by Katherine-qj on 2016/7/25.
 */
public class NewsActivity extends Activity {
  private TextView textTitle;
  private TextView textEdit;
  private TextView textDetail;
  private String title;
  private String edit;
  private String detail;
  private StringBuilder text;
  private String url;
  private Document document;
  private String content;
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_news);
    InitView();
    url=getIntent().getStringExtra("url");
    Log.e("qqq",url);
    NewsThread newsThread = new NewsThread(url);

    final Thread t = new Thread(newsThread,"NewsActivity");
    t.start();

  }
  public void InitView(){
    textTitle =(TextView)findViewById(R.id.textTitle);
    textEdit =(TextView)findViewById(R.id.textEdit);
    textDetail = (TextView)findViewById(R.id.textDetail);
  }
  private final android.os.Handler handler = new android.os.Handler(){
   public void handleMessage(Message msg){
     if(msg.what==1001){
       document = Jsoup.parse(content);
       analyseHTML(document);
       textTitle.setText(title);
       textEdit.setText(edit);
       textDetail.setText(text);
     }

   }
  };
  public class NewsThread implements Runnable{
    String url;
    public NewsThread(String url){
      this.url = url;
    }
    @Override
    public void run() {

      NetWorkClass netWorkClass = new NetWorkClass();
      content = netWorkClass.getDataByGet(url);
      System.out.print("qqq"+content);
      handler.sendEmptyMessage(1001);
    }


  }
  public void analyseHTML(Document document){
    if (document!=null){
      Element element = document.getElementById("nrys");
      Elements elements = element.getAllElements();
      title = elements.get(1).text();
      edit = elements.get(4).text();
      Element mElement = document.getElementById("vsb_content_1031");
      if(mElement != null) {
        Elements mElements = mElement.getAllElements();
        text = new StringBuilder();
        for (Element melement : mElements) {
          if(melement.className().equals("nrzwys") || melement.tagName().equals("strong")){
            continue;
          }

          if(!melement.text().equals(" ") && !melement.text().equals(""));{
            text.append(" ").append(melement.text()).append("\n");
          }
          if (melement.className().equals("vsbcontent_end")) {
            break;
          }
        }
      }
    }
  }
}