java写的未来6天的天气预报

package com.xuan.service;  
  
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;  
  
public class Weather {  
      
    private String Cityid;  
    private URLConnection connectionData;  
    private StringBuilder sb;  
    private BufferedReader br;// 读取data数据流   
    private JSONObject jsonData;   
    private JSONObject info;   
      
     public Weather(String cityid) throws IOException{  
         ///解析本机IP地址  
         this.Cityid=cityid;  
           
         ///连接中央气象台的APi  
         URL url=new URL("http://m.weather.com.cn/data/" + Cityid + ".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  
                new Weather("101280101"); // 101280101(广州)就是你的城市代码  
            } catch (Exception e) {   
                e.printStackTrace();   
            }   
        }   
       
       
       
       
       
       
       
          
}/////////////////////////