学步园

import java.io.BufferedReader;

 import java.io.FileNotFoundException;

 import java.io.IOException;

 import java.io.InputStreamReader;

 import java.net.SocketTimeoutException;

 import java.net.URL;

 import java.net.URLConnection;

 import java.text.SimpleDateFormat;

 import java.util.ArrayList;

 import java.util.Calendar;

 import java.util.Date;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

  

 import net.sf.json.JSONObject;

 /**

  * 得到未来6天的天气(含今天)

  * @author Chewl

  *

  */

 public class Weather { 

     String Ctiyid; 

     URLConnection connectionData; 

     StringBuilder sb; 

     BufferedReader br;// 读取data数据流 

     JSONObject jsonData; 

     JSONObject info; 

      

     public Weather(String Cityid) throws IOException ,NullPointerException{ 

         // 解析本机ip地址 

  

         this.Ctiyid = Cityid; 

         // 连接中央气象台的API 

         URL url = new URL("http://m.weather.com.cn/data/" + Ctiyid + ".html"); 

         connectionData = url.openConnection(); 

         connectionData.setConnectTimeout(1000); 

         try { 

             br = new BufferedReader(new InputStreamReader( 

                     connectionData.getInputStream(), "UTF-8")); 

             sb = new StringBuilder(); 

             String line = null; 

             while ((line = br.readLine()) != null) 

                 sb.append(line); 

         } catch (SocketTimeoutException e) { 

             System.out.println("连接超时"); 

         } catch (FileNotFoundException e) { 

             System.out.println("加载文件出错"); 

         } 

             String datas = sb.toString();   

             

            jsonData = JSONObject.fromObject(datas); 

           //  System.out.println(jsonData.toString());  

            info = jsonData.getJSONObject("weatherinfo"); 

         

         //得到1到6天的天气情况

        List<Map<String,Object>> list = new ArrayList<Map<String,Object>>();

         for(int i=1;i<=6;i++){

          //得到未来6天的日期

         Calendar cal = Calendar.getInstance();

          cal.add(Calendar.DAY_OF_YEAR, i-1);

          Date date = cal.getTime();

          SimpleDateFormat sf = new SimpleDateFormat("yyyy年MM月dd日");

          

         Map<String,Object> map = new HashMap<String, Object>();

          map.put("city", info.getString("city").toString());//城市

         map.put("date_y", sf.format(date));//日期

         map.put("week", getWeek(cal.get(Calendar.DAY_OF_WEEK)));//星期

         map.put("fchh", info.getString("fchh").toString());//发布时间

         map.put("weather", info.getString("weather"+i).toString());//天气

         map.put("temp", info.getString("temp"+i).toString());//温度

         map.put("wind", info.getString("wind"+i).toString());//风况

         map.put("fl", info.getString("fl"+i).toString());//风速

         map.put("index", info.getString("index").toString());// 今天的穿衣指数 

          map.put("index_uv", info.getString("index_uv").toString());// 紫外指数 

          map.put("index_tr", info.getString("index_tr").toString());// 旅游指数 

          map.put("index_co", info.getString("index_co").toString());// 舒适指数 

          map.put("index_cl", info.getString("index_cl").toString());// 晨练指数 

          map.put("index_xc", info.getString("index_xc").toString());//洗车指数 

          map.put("index_d", info.getString("index_d").toString());//天气详细穿衣指数 

          list.add(map);

         }

         //控制台打印出天气

       for(int j=0;j<list.size();j++){

        Map<String,Object> wMap = list.get(j);

        System.out.println(wMap.get("city")+"\t"+wMap.get("date_y")+"\t"+wMap.get("week")+"\t"

        +wMap.get("weather")+"\t"+wMap.get("temp")+"\t"+wMap.get("index_uv"));

        }

  

     } 

     private String getWeek(int iw){

      String weekStr = "";

      switch (iw) {

 case 1:weekStr = "星期天";break;

 case 2:weekStr = "星期一";break;

 case 3:weekStr = "星期二";break;

 case 4:weekStr = "星期三";break;

 case 5:weekStr = "星期四";break;

 case 6:weekStr = "星期五";break;

 case 7:weekStr = "星期六";break;

 default:

 break;

 }

      return weekStr;

     }

     public static void main(String[] args) { 

         try { 

             new Weather("101010100"); // 101010100(北京)就是你的城市代码

        } catch (Exception e) { 

             e.printStackTrace(); 

         } 

     } 

 }