中央气象局天气预报接口---java实现

一：接口地址

接口地址：

http://www.weather.com.cn/data/sk/101010100.html

http://www.weather.com.cn/data/cityinfo/101010100.html

http://m.weather.com.cn/data/101010100.html

url中的101010100是城市代码，这里是北京的城市代码。只需要改变城市代码，就可以得到所在城市的天气信息


二：java工具类调用天气接口

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;
/** * java调用中央气象局天气预报接口 * * @author Administrator * */public class WeatherUtil {
/** * 获取一周天气<br> * 方 法 名：getWeekWeatherMap <br> * @param Cityid 城市编码 */ public static List<Map<String, Object>> getWeekWeatherMap(String Cityid) throws IOException, NullPointerException { // 连接中央气象台的API URL url = new URL("http://m.weather.com.cn/data/" + Cityid + ".html"); URLConnection connectionData = url.openConnection(); connectionData.setConnectTimeout(1000); // 得到1到6天的天气情况 List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); try { BufferedReader br = new BufferedReader(new InputStreamReader( connectionData.getInputStream(), "UTF-8")); StringBuilder sb = new StringBuilder(); String line = null; while ((line = br.readLine()) != null) sb.append(line); String datas = sb.toString(); System.out.println(datas); JSONObject jsonData = JSONObject.fromObject(datas); JSONObject info = jsonData.getJSONObject("weatherinfo"); 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); } } catch (SocketTimeoutException e) { System.out.println("连接超时"); } catch (FileNotFoundException e) { System.out.println("加载文件出错"); }
return list;
}
/** * * 获取实时天气1<br> * 方 法 名： getTodayWeather <br> * * @param Cityid * 城市编码 */ public static Map<String, Object> getTodayWeather1(String Cityid) throws IOException, NullPointerException { // 连接中央气象台的API URL url = new URL("http://www.weather.com.cn/data/sk/" + Cityid + ".html"); URLConnection connectionData = url.openConnection(); connectionData.setConnectTimeout(1000); Map<String, Object> map = new HashMap<String, Object>(); try { BufferedReader br = new BufferedReader(new InputStreamReader( connectionData.getInputStream(), "UTF-8")); StringBuilder sb = new StringBuilder(); String line = null; while ((line = br.readLine()) != null) sb.append(line); String datas = sb.toString(); System.out.println(datas); JSONObject jsonData = JSONObject.fromObject(datas); JSONObject info = jsonData.getJSONObject("weatherinfo"); map.put("city", info.getString("city").toString());// 城市 map.put("temp", info.getString("temp").toString());// 温度 map.put("WD", info.getString("WD").toString());// 风向 map.put("WS", info.getString("WS").toString());// 风速 map.put("SD", info.getString("SD").toString());// 湿度 map.put("time", info.getString("time").toString());// 发布时间
} catch (SocketTimeoutException e) { System.out.println("连接超时"); } catch (FileNotFoundException e) { System.out.println("加载文件出错"); }
return map;
} /** * * 获取实时天气2<br> * 方 法 名： getTodayWeather <br> * * @param Cityid * 城市编码 */ public static Map<String, Object> getTodayWeather2(String Cityid) throws IOException, NullPointerException { // 连接中央气象台的API URL url = new URL("http://www.weather.com.cn/data/cityinfo/" + Cityid + ".html"); URLConnection connectionData = url.openConnection(); connectionData.setConnectTimeout(1000); Map<String, Object> map = new HashMap<String, Object>(); try { BufferedReader br = new BufferedReader(new InputStreamReader( connectionData.getInputStream(), "UTF-8")); StringBuilder sb = new StringBuilder(); String line = null; while ((line = br.readLine()) != null) sb.append(line); String datas = sb.toString(); System.out.println(datas); JSONObject jsonData = JSONObject.fromObject(datas); JSONObject info = jsonData.getJSONObject("weatherinfo"); map.put("city", info.getString("city").toString());// 城市 map.put("temp1", info.getString("temp1").toString());// 最高温度 map.put("temp2", info.getString("temp2").toString());// 最低温度 map.put("weather", info.getString("weather").toString());//天气 map.put("ptime", info.getString("ptime").toString());// 发布时间
} catch (SocketTimeoutException e) { System.out.println("连接超时"); } catch (FileNotFoundException e) { System.out.println("加载文件出错"); }
return map;
}
private static 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 { //测试获取实时天气1(包含风况，湿度) Map<String, Object> map = getTodayWeather1("101010100"); System.out.println(map.get("city") + "\t" + map.get("temp") + "\t" + map.get("WD") + "\t" + map.get("WS") + "\t" + map.get("SD") + "\t" + map.get("time")); //测试获取实时天气2(包含天气，温度范围) Map<String, Object> map2 = getTodayWeather2("101010100"); System.out.println(map2.get("city") + "\t" + map2.get("temp1") + "\t" + map2.get("temp2") + "\t" + map2.get("weather") + "\t" + map2.get("ptime")); //测试获取一周天气 List<Map<String, Object>> listData = getWeekWeatherMap("101010100"); for (int j = 0; j < listData.size(); j++) { Map<String, Object> wMap = listData.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("wind") + "\t" + wMap.get("fl")); } } catch (Exception e) { e.printStackTrace(); } }}

三：输出结果

文章来源： http://blog.csdn.net/u013628152/article/details/43484111需要的jar包

<dependency>
    <groupId>net.sf.json-lib</groupId>
    <artifactId>json-lib</artifactId>
    <version>2.3</version>
</dependency>
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.9.1</version>
</dependency>
<dependency>
<groupId>commons-lang</groupId>
<artifactId>commons-lang</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>commons-httpclient</groupId>
<artifactId>commons-httpclient</artifactId>
<version>3.1</version>
</dependency>
<dependency>
<groupId>commons-pool</groupId>
<artifactId>commons-pool</artifactId>
<version>1.6</version>
</dependency>
<dependency>
<groupId>commons-codec</groupId>
<artifactId>commons-codec</artifactId>
<version>1.9</version>
</dependency>
<dependency>
<groupId>net.sf.ezmorph</groupId>
<artifactId>ezmorph</artifactId>
<version>1.0.6</version>
</dependency>