获取城市天气数据

时间  2019-12-14
标签 获取 城市 天气 数据 繁體版
原文   原文链接

中华万年历API

抓包中华万年历获得的接口（JSON）：java

http://wthrcdn.etouch.cn/weather_mini?city=北京
经过城市名字得到天气数据，json数据
http://wthrcdn.etouch.cn/weather_mini?citykey=101010100
经过城市id得到天气数据，json数据apache

数据和中国天气网（www.weather.com.cn）一致json

数据：app

{
	"desc": "OK",
	"status": 1000,
	"data": {
		"wendu": "22",
		"ganmao": "各项气象条件适宜，无明显降温过程，发生感冒机率较低。",
		"forecast": [{
			"fengxiang": "南风",
			"fengli": "3-4级",
			"high": "高温 26℃",
			"type": "多云",
			"low": "低温 13℃",
			"date": "28日星期四"
		},
		{
			"fengxiang": "无持续风向",
			"fengli": "微风级",
			"high": "高温 28℃",
			"type": "多云",
			"low": "低温 15℃",
			"date": "29日星期五"
		},
		{
			"fengxiang": "无持续风向",
			"fengli": "微风级",
			"high": "高温 31℃",
			"type": "晴",
			"low": "低温 15℃",
			"date": "30日星期六"
		},
		{
			"fengxiang": "无持续风向",
			"fengli": "微风级",
			"high": "高温 29℃",
			"type": "多云",
			"low": "低温 20℃",
			"date": "1日星期天"
		},
		{
			"fengxiang": "北风",
			"fengli": "4-5级",
			"high": "高温 26℃",
			"type": "小到中雨",
			"low": "低温 13℃",
			"date": "2日星期一"
		}],
		"yesterday": {
			"fl": "微风",
			"fx": "无持续风向",
			"high": "高温 19℃",
			"type": "小雨",
			"low": "低温 12℃",
			"date": "27日星期三"
		},
		"aqi": "118",
		"city": "北京"
	}
}

XML工具

 

http://wthrcdn.etouch.cn/WeatherApi?citykey=101010100测试

经过城市id得到天气数据，xml文件数据,
当错误时会有<error>节点
http://wthrcdn.etouch.cn/WeatherApi?city=北京
经过城市名字得到天气数据，xml文件数据url

 

数据：code

<resp>
<city>北京</city>
<updatetime>18:45</updatetime>
<wendu>22</wendu>
<fengli>2级</fengli>
<shidu>33%</shidu>
<fengxiang>东南风</fengxiang>
<sunrise_1>05:19</sunrise_1>
<sunset_1>19:06</sunset_1>
<sunrise_2/>
<sunset_2/>
<environment>
<aqi>118</aqi>
<pm25>61</pm25>
<suggest>儿童、老年人及心脏、呼吸系统疾病患者人群应减小长时间或高强度户外锻炼</suggest>
<quality>轻度污染</quality>
<MajorPollutants>臭氧8小时</MajorPollutants>
<o3>185</o3>
<co>1</co>
<pm10>101</pm10>
<so2>4</so2>
<no2>24</no2>
<time>18:00:00</time>
</environment>
<yesterday>
<date_1>27日星期三</date_1>
<high_1>高温 19℃</high_1>
<low_1>低温 12℃</low_1>
<day_1>
<type_1>小雨</type_1>
<fx_1>无持续风向</fx_1>
<fl_1>微风</fl_1>
</day_1>
<night_1>
<type_1>阴</type_1>
<fx_1>无持续风向</fx_1>
<fl_1>微风</fl_1>
</night_1>
</yesterday>
<forecast>
<weather>
<date>28日星期四</date>
<high>高温 26℃</high>
<low>低温 13℃</low>
<day>
<type>多云</type>
<fengxiang>南风</fengxiang>
<fengli>3-4级</fengli>
</day>
<night>
<type>多云</type>
<fengxiang>无持续风向</fengxiang>
<fengli>微风级</fengli>
</night>
</weather>
<weather>
<date>29日星期五</date>
<high>高温 28℃</high>
<low>低温 15℃</low>
<day>
<type>多云</type>
<fengxiang>无持续风向</fengxiang>
<fengli>微风级</fengli>
</day>
<night>
<type>晴</type>
<fengxiang>无持续风向</fengxiang>
<fengli>微风级</fengli>
</night>
</weather>
<weather>
<date>30日星期六</date>
<high>高温 31℃</high>
<low>低温 15℃</low>
<day>
<type>晴</type>
<fengxiang>无持续风向</fengxiang>
<fengli>微风级</fengli>
</day>
<night>
<type>多云</type>
<fengxiang>无持续风向</fengxiang>
<fengli>微风级</fengli>
</night>
</weather>
<weather>
<date>1日星期天</date>
<high>高温 29℃</high>
<low>低温 20℃</low>
<day>
<type>多云</type>
<fengxiang>无持续风向</fengxiang>
<fengli>微风级</fengli>
</day>
<night>
<type>小雨</type>
<fengxiang>无持续风向</fengxiang>
<fengli>微风级</fengli>
</night>
</weather>
<weather>
<date>2日星期一</date>
<high>高温 26℃</high>
<low>低温 13℃</low>
<day>
<type>小到中雨</type>
<fengxiang>北风</fengxiang>
<fengli>4-5级</fengli>
</day>
<night>
<type>多云</type>
<fengxiang>北风</fengxiang>
<fengli>3-4级</fengli>
</night>
</weather>
</forecast>
<zhishus>
<zhishu>
<name>晨练指数</name>
<value>适宜</value>
<detail>天气不错，空气清新，是您晨练的大好时机，建议不一样年龄段的人们积极参加户外健身活动。</detail>
</zhishu>
<zhishu>
<name>温馨度</name>
<value>较温馨</value>
<detail>白每天气晴好，您在这种天气条件下，会感受迟早凉爽、温馨，午后偏热。</detail>
</zhishu>
<zhishu>
<name>穿衣指数</name>
<value>温馨</value>
<detail>建议着长袖T恤、衬衫加单裤等服装。年老体弱者宜着针织长袖衬衫、马甲和长裤。</detail>
</zhishu>
<zhishu>
<name>感冒指数</name>
<value>少发</value>
<detail>各项气象条件适宜，无明显降温过程，发生感冒机率较低。</detail>
</zhishu>
<zhishu>
<name>晾晒指数</name>
<value>适宜</value>
<detail>天气不错，适宜晾晒。赶忙把久未见阳光的衣物搬出来吸取一下太阳的味道吧！</detail>
</zhishu>
<zhishu>
<name>旅游指数</name>
<value>适宜</value>
<detail>天气较好，但丝绝不会影响您出行的心情。温度适宜又有微风相伴，适宜旅游。</detail>
</zhishu>
<zhishu>
<name>紫外线强度</name>
<value>中等</value>
<detail>属中等强度紫外线辐射天气，外出时建议涂擦SPF高于1五、PA+的防晒护肤品，戴帽子、太阳镜。</detail>
</zhishu>
<zhishu>
<name>洗车指数</name>
<value>较适宜</value>
<detail>较适宜洗车，将来一天无雨，风力较小，擦洗一新的汽车至少能保持一天。</detail>
</zhishu>
<zhishu>
<name>运动指数</name>
<value>较适宜</value>
<detail>天气较好，户外运动请注意防晒，推荐您在室内进行低强度运动。</detail>
</zhishu>
<zhishu>
<name>约会指数</name>
<value>适宜</value>
<detail>天气较好，和恋人一块儿徜徉于熙攘人群中或漫步于柔软草地上，都是不错的主意哦。</detail>
</zhishu>
<zhishu>
<name>雨伞指数</name>
<value>不带伞</value>
<detail>天气较好，不会降水，所以您可放心出门，无须带雨伞。</detail>
</zhishu>
</zhishus>
</resp>

 

java code:cdn

package com.topsports.util;

import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.zip.GZIPInputStream;

import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

/**
 * 天气预报工具类（调用中华万年历接口获取）
 * @author sun.xh
 * @date 2018-08-02
 */
public class WeatherUtil {
	private static Logger logger = LogManager.getLogger(WeatherUtil.class);
	
	/**
	 * 获取今天实时天气
	 * @param cityName 城市名称
	 * @return type 
	 */
	public static String getTodayWeather(String cityName){
		String res = null;
		
		try {
			JSONArray array = getWeather(cityName);
			
			if (array != null && !array.isEmpty()) {
				JSONObject today = array.getJSONObject(0);
				res = today.getString("type");
			}
			
		} catch (Exception e) {
			logger.error("获取天气失败", e);
		}
		
		return res; 
	}
	
	/**
	 * 获取最近几每天气 + 昨日天气
	 * @param cityName
	 * @return jsonArray
	 */
	public static JSONArray getWeather(String cityName) {
		String url = "http://wthrcdn.etouch.cn/weather_mini?city=" + cityName;
		
		JSONArray array = null;
		
		CloseableHttpClient httpClient = HttpClients.createDefault();
		try {
			
			HttpGet httpGet = new HttpGet(url);
			HttpResponse httpResponse = httpClient.execute(httpGet);
			String result = getJsonStringFromGZIP(httpResponse);// 获取到解压缩以后的字符串
 
			JSONObject jsonData = JSONObject.fromObject(result);
			logger.info("请求天气接口返回状态以下：cityName:{}, status:{},desc:{}", cityName, jsonData.getString("status"), jsonData.getString("desc"));
			
			if (jsonData.getString("desc").equals("OK")) {
				JSONObject data = jsonData.getJSONObject("data");
				array = data.getJSONArray("forecast");
			}
 
		} catch (Exception e) {
			logger.error("获取一周天气数据失败", e);
		} finally {
			try {
				httpClient.close();
			} catch (IOException e) {
				logger.error("IO异常", e);
			}
		}
		
		return array; 
	}
	
	/**
	 * 解压缩gzip
	 * @param response
	 * @return
	 */
	private static String getJsonStringFromGZIP(HttpResponse response) {
		String jsonString = null;
		try {
			InputStream is = response.getEntity().getContent();
			BufferedInputStream bis = new BufferedInputStream(is);
			bis.mark(2);
			// 取前两个字节
			byte[] header = new byte[2];
			int result = bis.read(header);
			// reset输入流到开始位置
			bis.reset();
			// 判断是不是GZIP格式
			int headerData = getShort(header);
			if (result != -1 && headerData == 0x1f8b) {
				is = new GZIPInputStream(bis);
			} else {
				is = bis;
			}
			InputStreamReader reader = new InputStreamReader(is, "utf-8");
			char[] data = new char[100];
			int readSize;
			StringBuffer sb = new StringBuffer();
			while ((readSize = reader.read(data)) > 0) {
				sb.append(data, 0, readSize);
			}
			jsonString = sb.toString();
			bis.close();
			reader.close();
		} catch (Exception e) {
			logger.error("解压JSON异常", e);
		}
		return jsonString;
	}
 
	private static int getShort(byte[] data) {
		return (int) ((data[0] << 8) | data[1] & 0xFF);
	}
	
	public static void main(String[] args) {

		//测试获取实时天气
		String res = getTodayWeather("深圳");
		System.out.println(res);

	}
}
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