【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

  [java] view plaincopyprint?

  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("m.weathercn/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

posted on 2013-10-06 15:54  挖掘者者者  阅读(388)  评论(1编辑  收藏  举报