Java Jsoup getElementsByClass提供大小为0的元素
我正试图编写一个程序，通过使用JSoup从weather.com获取天气信息。这就是我到目前为止所做的：Java Jsoup getElementsByClass提供大小为0的元素,java,Java,我正试图编写一个程序，通过使用JSoup从weather.com获取天气信息。这就是我到目前为止所做的： import org.jsoup.nodes.Document; import org.jsoup.nodes.Element; import org.jsoup.select.Elements; import org.jsoup.Jsoup; public class WeatherComHandler { private Element ForeCastDiv; pu
import org.jsoup.nodes.Document;
import org.jsoup.nodes.Element;
import org.jsoup.select.Elements;
import org.jsoup.Jsoup;
public class WeatherComHandler {
private Element ForeCastDiv;
public static void main(String[] args) {
WeatherComHandler wch = new WeatherComHandler("http://www.weather.com/weather/today/Brussels+BEXX0005:1:BE");
wch.getTodaysForeCast();
}
public WeatherComHandler(String url) {
getForeCastDiv(url);
}
private void getForeCastDiv(String url) {
try {
Document doc = Jsoup.connect(url).get();
ForeCastDiv = doc.getElementById("wx-forecast-container");
} catch(Exception e) {
e.getStackTrace();
}
}
public void getTodaysForeCast() {
System.out.println(ForeCastDiv.toString());
System.out.println(ForeCastDiv.hasClass("wx-data-part wx-first"));
Elements todaysElements = ForeCastDiv.getElementsByClass("wx-data-part wx-first");
System.out.println(todaysElements.size());
}
}
<div id="wx-forecast-container">
<div class="wx-today wx-module wx-grid3of6">
<div class="wx-title-container">
<h2 class="wx-title"><img src="http://i.imwx.com/common/My.png" /> Forecast for Today</h2>
<div class="wx-updated">
Updated: Oct 28, 5:45pm Local Time
</div>
<div class="wx-promo-links wx-cond wx-severe wx-severe-0">
<ul class="wx-links">
<li class="wx-icon wx-cond wx-desktop"> <a class="wx-icon wx-cond wx-desktop" href="/apps/desktop-weather" location="" from="today_promo_1" title="Weather on my Desktop">Desktop App</a> </li>
</ul>
</div>
</div>
<div class="wx-weather-details">
<div class="wx-timepart-title wx-first">
Right Now
<div class="wx-module wx-grid1of6 wx-weather wx-love-module wx-cond-bg">
<div class="wx-module-inner">
<div class="wx-icon wx-social wx-balloon-wt-lt wx-clickable wx-love-ugh" data-good="true" data-share-trx="" data-share-icon="http://s.imwx.com/img/common/social/lmw-love.jpg" title="Love My Weather" data-share-desc="It's 55°F, Clear">
<div class="wx-icon wx-social wx-heart"></div>
<h4 data-share-title="Love! Right now in Brussels, Belgium"></h4>
</div>
<div class="wx-icon wx-social wx-balloon-wt-rt wx-clickable wx-love-ugh" data-good="false" data-share-trx="" data-share-icon="http://s.imwx.com/img/common/social/lmw-ugg.jpg" title="Don't Love My Weather" data-share-desc="It's 55°F, Clear">
<h4 data-share-title="Ugh! Right now in Brussels, Belgium"></h4>
</div>
</div>
</div>
</div>
<div class="wx-timepart-title">
Earlier Today
</div>
<div class="wx-timepart-title">
Tonight
</div>
<div class="wx-data-part wx-first">
<img src="http://s.imwx.com/v.20131006.214956/img/wxicon/120/31.png" height="120" width="120" alt="Clear" class="wx-weather-icon" />
</div>
<div class="wx-data-part">
<img src="http://s.imwx.com/v.20131006.214956/img/wxicon/120/34.png" height="120" width="120" alt="Fair / Windy" class="wx-weather-icon" />
</div>
<div class="wx-data-part">
<img src="http://s.imwx.com/v.20131006.214956/img/wxicon/120/29.png" height="120" width="120" alt="Partly Cloudy" class="wx-weather-icon" />
</div>
<div class="wx-data-part wx-first">
<div class="wx-temperature">
<span itemprop="temperature-fahrenheit">55</span>
<span class="wx-degrees">°<span class="wx-unit">F</span></span>
</div>
<div class="wx-temperature-label">
FEELS LIKE
<span itemprop="feels-like-temperature-fahrenheit">55</span>°
</div>
</div>
<div class="wx-data-part">
<div class="wx-temperature">
62
<span class="wx-degrees">°</span>
</div>
<div class="wx-temperature-label">
HIGH AT 11:45 AM
</div>
</div>
<div class="wx-data-part">
<div class="wx-temperature">
47
<span class="wx-degrees">°</span>
</div>
<div class="wx-temperature-label">
LOW
</div>
</div>
<div class="wx-data-part wx-first">
<div class="wx-phrase ">
Clear
</div>
<div class="wx-obs-qualifier ">
<span class="wx-hide" itemprop="observation-qualifier">OQ1190</span>
<span class="wx-hide" itemprop="observation-qualifier-severity">2</span>
<span itemprop="observation-qualifier-phrase">Locations nearby are reporting rain with wind.</span>
</div>
</div>
<div class="wx-data-part">
<div class="wx-phrase ">
Fair / Windy
</div>
</div>
<div class="wx-data-part">
<div class="wx-phrase ">
Partly Cloudy
</div>
</div>
<div class="wx-data-part wx-first">
<h6 class="wx-label">Past 24-hr Precip:</h6>
<div class="wx-data">
0.34 in
<span class="wx-estimated">(est.)</span>
</div>
</div>
<div class="wx-data-part">
<h6 class="wx-label"></h6>
<div class="wx-data"></div>
</div>
<div class="wx-data-part">
<h6 class="wx-label">Chance of <span class="wx-firstletter">rain</span></h6>
<div class="wx-data">
<span class="wx-icon wx-raindrop"></span>20%
</div>
</div>
<div class="wx-collapsible">
<div class="wx-data-part wx-first wx-wind">
<h6 class="wx-label">Wind:</h6>
<div class="wx-data">
<div class="wx-icon wx-dir-arrow-sm wind-dir-SW"></div>
<div class="wx-wind-label">
SW at 17 mph
</div>
</div>
</div>
<div class="wx-data-part wx-wind">
<h6 class="wx-label"></h6>
<div class="wx-data">
<div class="wx-wind-label"></div>
</div>
</div>
<div class="wx-data-part wx-wind">
<h6 class="wx-label">Wind:</h6>
<div class="wx-data">
<div class="wx-icon wx-dir-arrow-sm wind-dir-SW"></div>
<div class="wx-wind-label">
SW at 18 mph
</div>
</div>
</div>
<div class="wx-data-part wx-first">
<h6 class="wx-label">Humidity:</h6>
<div class="wx-data">
76%
</div>
</div>
<div class="wx-data-part">
<h6 class="wx-label"></h6>
<div class="wx-data"></div>
</div>
<div class="wx-data-part">
<h6 class="wx-label">Humidity:</h6>
<div class="wx-data">
82%
</div>
</div>
<div class="wx-data-part wx-first">
<h6 class="wx-label">UV Index:</h6>
<div class="wx-data">
0 - Low
</div>
</div>
<div class="wx-data-part">
<h6 class="wx-label"></h6>
<div class="wx-data"></div>
</div>
<div class="wx-data-part"></div>
<div class="wx-data-part wx-first ">
<h6 class="wx-label"></h6>
<p class="wx-text"></p>
</div>
<div class="wx-data-part ">
<h6 class="wx-label"></h6>
<p class="wx-text"></p>
</div>
<div class="wx-data-part ">
<h6 class="wx-label">Tonight:</h6>
<p class="wx-text">Partly cloudy skies. Low 47F. Winds SW at 15 to 25 mph.</p>
</div>
<div class="wx-astro-neighbor">
<div class="wx-data-part wx-first">
<h6 class="wx-label">Pressure:</h6>
<div class="wx-data">
<span itemprop="barometric-pressure-incheshg"> 29.59 in </span>
<span class="wx-icon wx-dir-arrow-sm wx-pressure-steady"></span>
</div>
</div>
<div class="wx-data-part wx-first wx-dewpoint">
<h6 class="wx-label">Dew Point: <span class="wx-icon wx-long wx-info"> <i>Humidity becomes more noticeable as the dew point rises above 60°F. Readings above 75°F can feel stifling.</i> </span> </h6>
<div class="wx-data">
47°
</div>
</div>
<div class="wx-data-part wx-first">
<h6 class="wx-label">Visibility:</h6>
<div class="wx-data">
6.0 mi
</div>
</div>
</div>
<div class="wx-astro-details">
<h3 class="wx-astro-title">Sun & Moon</h3>
<dl class="wx-first">
<dt>
Sunrise:
</dt>
<dd>
7:28 am
</dd>
<dt>
Sunset:
</dt>
<dd>
5:25 pm
</dd>
</dl>
<dl>
<dt>
Moonrise:
</dt>
<dd>
12:27 am
</dd>
<dt>
Moonset:
</dt>
<dd>
2:32 pm
</dd>
</dl>
<dl class="wx-moonphase-container">
<dt>
Moonphase:
</dt>
<dd>
<div class="wx-icon wx-moonphase wx-moon-23"></div>
<div class="wx-moonphase-label">
Waning Crescent
</div>
</dd>
</dl>
</div>
</div>
</div>
<div class="wx-toggle-collapsible-container">
<div class="wx-toggle-collapsible wx-clickable">
<div class="wx-control wx-expand-control" tracktype="action" trackstr="today_rightnow_showmore">
<span class="wx-icon wx-arrow wx-mb-lg-dn"></span>Open Weather Details
</div>
<div class="wx-control wx-collapse-control wx-hide" tracktype="action" trackstr="today_rightnow_showless">
<span class="wx-icon wx-arrow wx-mb-lg-up"></span>Close Weather Details
</div>
</div>
</div>
<div class="wx-pagination-linkers">
<div class="wx-next-linker">
<ul class="wx-links">
<li class=""> <a class="" href="/weather/hourbyhour/graph/Brussels+BEXX0005:1:BE" location="" from="today_rightnow-Today_tempGraph_1" title="">Hourly Forecast</a> </li>
</ul>
</div>
</div>
</div>
<script>$("#wx-icon wx-long wx-info").attr('title','This is the hover-over text');</script>
<div id="wunderground-lightbox" class="wx-dialog">
<div class="wx-close" title="Close">
<div class="wx-icon"></div>
</div>
</div>
<div class="wx-combinedPromo wx-module wx-grid3of6">
<div class="wx-commuter-promo" data-classname="wx-grid-2" from="today-commuterpromo" data-layers="traffic,weather" data-locationinus="false" data-backgroundimageurl="" data-location-zoom="10" data-location-latitude="50.85045" data-location-longitude="4.34878">
<div class="wx-commute-promo-callout-title">
<div class="wx-titleIconHolder">
<img class="wx-titleIcon" src="http://s.imwx.com/img/module/TrafficCams_16x16.png" />
</div>
<div class="wx-titleText">
NEW! Traffic & Commuter Forecast
</div>
</div>
</div>
</div>
<div class="wx-clear"></div>
<div class="wx-scroll-tracking wx-scroll-pres" data-modulecode="ScrollTracking1_Today" data-location="BEXX0005:1:BE" data-groupname="weblocal"></div>
<div class="wx-free-title ">
<h3>Latest Stories</h3>
</div>
<div id="wx-rightnowsecond-container">
<div id="wx-rightnow-container">
<div class="wx-module wx-mod1 wx-corsican wx-1x155M wx-render-mode" id="mod_4" data-vr-zone="today_beta_Media_top2">
<div class="wx-inner" data-vr-contentbox=""></div>
</div>
<div class="wx-module wx-mod1 wx-corsican wx-1x155M wx-render-mode" id="mod_5" data-vr-zone="today_beta_Media_top1">
<div class="wx-inner" data-vr-contentbox=""></div>
</div>
</div>
<div class="wx-module wx-trending-stories wx-tabbed-content wx-grid2of6">
<div class="wx-inner">
<h2 class="wx-title">Most Popular</h2>
<ul class="wx-tabs" data-vr-zone="Most Popular">
<li class="wx-tab wx-active" data-tab="today" data-vr-contentbox="">Today</li>
<li class="wx-tab wx-clickable" data-tab="this_week" data-vr-contentbox="">This Week</li>
</ul>
<ul class="wx-tab-content" data-tab="today" data-vr-zone="Most Popular">
<li data-vr-contentbox=""><a href="/article/superstorm-sandy-photos-then-and-now-20131024" from="62288_MostPopular_1">Superstorm Sandy: Then and Now (EXCLUSIVE PHOTOS)</a></li>
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<ul class="wx-tab-content" data-tab="this_week" style="display:none;" data-vr-zone="Most Popular">
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</div>
</div>
</div>
<div class="wx-map wx-cc-map wx-grid3of6 wx-module pagelet " data-severelocation="false" data-location="BEXX0005" data-location-type="1" data-overlay="" data-zoom="" data-tropical="" data-mapsize="3" data-fragid="frag_newccMap_166739" data-modulecode="beta_CCMap" data-pageid="62288">
</div>
</div>
false
0
预测今日
更新时间：当地时间10月28日下午5:45
马上
今天早些时候
今晚
55
&度；F
感觉像
55度；
62
&度；
上午11点45分高中
47
&度；
低
清楚的
OQ1190
2.
据报道，附近地区有雨有风。
晴朗/多风
多云
过去24小时预测：
0.34英寸
（美国东部标准时间）
下雨的机会
20%
风：
以每小时17英里的速度向西南行驶
风：
以每小时18英里的速度向西南行驶
湿度：
76%
湿度：
82%
紫外线指数：
0-低
今晚：
部分多云的天空。低47F。风速为西南15至25英里/小时。
压力：
29.59英寸
露点：当露点上升到60度以上时，湿度变得更加明显；F.读数高于75度和摄氏度；F会感到窒息。
47度；
能见度：
6.0英里
太阳及；月亮
日出：
上午7:28
日落：
下午五时二十五分
月出：
上午12:27
月落：
下午2:32
月相：
月牙
开放天气详情
密切关注天气详情
$（“#wx icon wx long wx info”）.attr（'title'，'This is the hover over text'）；
新的！交通及；通勤预测
最新报道
最受欢迎
- 今日
- 本周
假的
0
getTodaysForeCast（）todaysElements提前感谢。您正在将两个单独的类名（用空格分隔）传递给
hasClass（）getElementsByClass（）select（）ForeCastDiv.select(".wx-data-part.wx-first")
Jsoup将不接受
getElementsByClass Elements todaysElements = ForeCastDiv.getElementsByAttributeValueContaining("class", "wx-data-part wx-first");
根据您的打印声明，
ForeCastDiv.hasClass（“wx数据部分wx-first”）元素