两步完成接口调取

第一步：引入jar包

若在线jar包失效，私信我即可。

第二步：创建类实现

在JAVA项目中创建java类(我的是：WeatherUtil)

修改类中cityid为你需要展示的地区id,我的是上海的【cityid查询】

WeatherUtil类代码：

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

* 方 法 名：getWeekWeatherMap

* @param Cityid 城市编码

*/

public static List> 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> list = new ArrayList>();

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 map = new HashMap();

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

* 方 法 名： getTodayWeather

*

* @param Cityid

* 城市编码

*/

public static Map 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 map = new HashMap();

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

* 方 法 名： getTodayWeather

*

* @param Cityid

* 城市编码

*/

public static Map 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 map = new HashMap();

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 map = getTodayWeather1("101020100");

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 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> listData = getWeekWeatherMap("101010100");

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

Map 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();

}

}

}