两步完成接口调取
第一步：引入jar包
- 在线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<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("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<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();
}
}
}
