java写的未来6天的天气预报

最近写的一个java程序，

需求：获取未来6天的天气预报，条用中央气象台API来实现的

有兴趣的同学可以，参考一下：代码如下

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(); 
	        } 
	    } 
	 
	 
	 
	 
	 
	 
	 
	    
}/////////////////////////

运行效果：