天气API
最近项目中需要在首页添加一个天气的栏目，因此需要去获取天气的参数。
需要日期、天气状态、空气状态、pm2.5指数，温度、风向风力。
网上找了很多的接口很多都是没有pm2.5这个指数。偶然发现了一个带pm指数的接口。拿来试了一下，还不错，在此跟大家分享一下。
通过城市名（北京/北京市）获取当前城市温度、湿度、空气质量主要参数指数、警告、昨日天气、未来天气、日出日落时间（(⊙﹏⊙)b）（XML数据）：
接口：http://wthrcdn.etouch.cn/WeatherApi?city=北京市;
注意：1、此接口返回的XML数据，对于撸惯Json数据的小伙伴来说，需要再撸下XML解析了；2、中国台湾城市及大陆一些城市的空气质量数据没有；
用postman测试一下：
可以看到返回的是xml格式的数据。
我们要拿到其中有用的信息，这就需要对xml进行操作。我用的是dom4j。
在idea中新建一个类进行测：因为数据量比较大，所以我截取了其中一部分。
public class WeatherTest {
public static void main(String[] args) {
String resultStr = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n" +
"\n" +
"<resp>\n" +
" <city>北京</city>\n" +
" <updatetime>21:26</updatetime>\n" +
" <wendu>16</wendu>\n" +
" <fengli><![CDATA[5级]]></fengli>\n" +
" <shidu>18%</shidu>\n" +
" <fengxiang>西北风</fengxiang>\n" +
" <sunrise_1>06:37</sunrise_1>\n" +
" <sunset_1>17:19</sunset_1>\n" +
" <sunrise_2/>\n" +
" <sunset_2/>\n" +
" <environment>\n" +
" <aqi>43</aqi>\n" +
" <pm25>13</pm25>\n" +
" <suggest>各类人群可自由活动</suggest>\n" +
" <quality>优</quality>\n" +
" <MajorPollutants/>\n" +
" <o3>45</o3>\n" +
" <co>0</co>\n" +
" <pm10>42</pm10>\n" +
" <so2>2</so2>\n" +
" <no2>32</no2>\n" +
" <time>21:00:00</time>\n" +
" </environment>\n" +
" <yesterday>\n" +
" <date_1>26日星期五</date_1>\n" +
" <high_1>高温 14℃</high_1>\n" +
" <low_1>低温 3℃</low_1>\n" +
" <day_1>\n" +
" <type_1>晴</type_1>\n" +
" <fx_1>西北风</fx_1>\n" +
" <fl_1><![CDATA[4-5级]]></fl_1>\n" +
" </day_1>\n" +
" <night_1>\n" +
" <type_1>晴</type_1>\n" +
" <fx_1>西北风</fx_1>\n" +
" <fl_1><![CDATA[<3级]]></fl_1>\n" +
" </night_1>\n" +
" </yesterday>\n" +
" <forecast>\n" +
" <weather>\n" +
" <date>27日星期六</date>\n" +
" <high>高温 17℃</high>\n" +
" <low>低温 5℃</low>\n" +
" <day>\n" +
" <type>晴</type>\n" +
" <fengxiang>西南风</fengxiang>\n" +
" <fengli><![CDATA[<3级]]></fengli>\n" +
" </day>\n" +
" <night>\n" +
" <type>多云</type>\n" +
" <fengxiang>西南风</fengxiang>\n" +
" <fengli><![CDATA[<3级]]></fengli>\n" +
" </night>\n" +
" </weather>\n" +
" <weather>\n" +
" <date>28日星期天</date>\n" +
" <high>高温 17℃</high>\n" +
" <low>低温 4℃</low>\n" +
" <day>\n" +
" <type>多云</type>\n" +
" <fengxiang>西北风</fengxiang>\n" +
" <fengli><![CDATA[4-5级]]></fengli>\n" +
" </day>\n" +
" <night>\n" +
" <type>晴</type>\n" +
" <fengxiang>无持续风向</fengxiang>\n" +
" <fengli><![CDATA[<3级]]></fengli>\n" +
" </night>\n" +
" </weather>\n" +
" <weather>\n" +
" <date>29日星期一</date>\n" +
" <high>高温 15℃</high>\n" +
" <low>低温 3℃</low>\n" +
" <day>\n" +
" <type>晴</type>\n" +
" <fengxiang>无持续风向</fengxiang>\n" +
" <fengli><![CDATA[3-4级]]></fengli>\n" +
" </day>\n" +
" <night>\n" +
" <type>晴</type>\n" +
" <fengxiang>北风</fengxiang>\n" +
" <fengli><![CDATA[<3级]]></fengli>\n" +
" </night>\n" +
" </weather>\n" +
" <weather>\n" +
" <date>30日星期二</date>\n" +
" <high>高温 15℃</high>\n" +
" <low>低温 1℃</low>\n" +
" <day>\n" +
" <type>晴</type>\n" +
" <fengxiang>北风</fengxiang>\n" +
" <fengli><![CDATA[<3级]]></fengli>\n" +
" </day>\n" +
" <night>\n" +
" <type>晴</type>\n" +
" <fengxiang>北风</fengxiang>\n" +
" <fengli><![CDATA[<3级]]></fengli>\n" +
" </night>\n" +
" </weather>\n" +
" <weather>\n" +
" <date>31日星期三</date>\n" +
" <high>高温 15℃</high>\n" +
" <low>低温 2℃</low>\n" +
" <day>\n" +
" <type>晴</type>\n" +
" <fengxiang>西南风</fengxiang>\n" +
" <fengli><![CDATA[<3级]]></fengli>\n" +
" </day>\n" +
" <night>\n" +
" <type>晴</type>\n" +
" <fengxiang>北风</fengxiang>\n" +
" <fengli><![CDATA[<3级]]></fengli>\n" +
" </night>\n" +
" </weather>\n" +
" </forecast>\n" +
"</resp>\n" +
"<!-- 10.42.161.121(10.42.161.121):8180 ; 10.42.161.121:8080 -->\n";
Document document = null;
try {
document = DocumentHelper.parseText(resultStr);
} catch (DocumentException e) {
e.printStackTrace();
}
Element rootElement = document.getRootElement();
Element environment = rootElement.element("environment");
String wendu = rootElement.elementText("wendu");
String quality = environment.elementTextTrim("quality");
String pm25 = environment.elementTextTrim("pm25");
Element forecast = rootElement.element("forecast");
List<Element> list = forecast.elements();
Element weather = list.get(1);
String type = weather.element("day").elementText("type");
String fengxiang = weather.element("day").elementText("fengxiang");
String date = weather.elementText("date");
System.out.println("温度："+wendu+" 空气质量："+quality+
" pm2.5:"+pm25 +" 天气："+type+" 风向："+fengxiang +
" 日期："+date);
}
}
运行结果：
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原始发表：2018-10-28，如有侵权请联系 cloudcommunity@tencent.com 删除
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