如何使用带有多个类名元素的Jsoup解析html文件? [英] how to parse html file using Jsoup with multiple class-name element?
问题描述
下面的Java代码对于带有css-sched-table-title之类的html文件可以很好地工作.
the below java code works fine for html file with class for eg css-sched-table-title.
但是我有多个类名可以在html文件中找到，例如css-sched-waypoints，css-sched-times.如何在jsoup中使用getElementsByClass方法组合搜索.我不想多次编写代码，因为我想保留订单.我的意思是我想要
However i have multiple class names to find for in the html file eg css-sched-waypoints , css-sched-times. How do i combine the search using getElementsByClass method in jsoup. I don't want to write the code multiple times because I want to preserver the order. My point is i want something like
doc.getElementsByClass("css-sched-table-title" || doc.getElementsByClass("css-sched-waypoints");
Document doc = Jsoup.parse(content);
Elements ele = doc.getElementsByClass("css-sched-table-title");
for (Element link : ele) {
String linkText = link.text();
System.out.println(linkText);
}
.
<tr ALIGN="CENTER">
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">6:15</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">6:20</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">6:24</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">6:34</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">6:34</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">6:40</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">6:46</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">6:54</td>
</tr>
<tr VALIGN="BOTTOM">
<TD> </TD>
<TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Townline and Southern</TD>
<TD> </TD>
<TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Clearbrook and Blueridge</TD>
<TD> </TD>
<TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Clearbrook and South Fraser</TD>
<TD> </TD>
<TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Ar. Bourquin Exchange</TD>
<TD> </TD>
<TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Lv. Bourquin Exchange</TD>
<TD> </TD>
<TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Downtown Abbotsford</TD>
<TD> </TD>
<TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">McMillan and Old Yale</TD>
<TD> </TD>
<TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Sandy Hill and Old Clayburn</TD>
</tr>
<tr ALIGN="CENTER">
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">8:12</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">8:17</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">8:21</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">8:31</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">8:34</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">8:40</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">8:46</td>
<td CLASS="css-sched-times"> </td>
<td CLASS="css-sched-times">8:54</td>
</tr>
推荐答案
从您先前的查询中获取线索，当我尝试通过有效的Selector语法组合3个td时，我得到了您期望的结果.
Taking cues from your earlier query, when I try and combine the 3 tds through a valid Selector syntax, I get the result you are expecting.
doc.select("td[class=css-sched-table-title], td[class=css-sched-waypoints], td[class=css-sched-times]")
注意，您可以在选择器语法(如Elements row = doc.select("td[class=css-sched-table-title], td[class=css-sched-waypoints], td[class=css-sched-times]");)中组合多个条件，从而有效地成为您的OR运算符.
Note, you can combine multiple conditions within your selector syntax like this Elements row = doc.select("td[class=css-sched-table-title], td[class=css-sched-waypoints], td[class=css-sched-times]"); which effectively becomes your OR operator.
Elements row = doc.select("td[class=css-sched-table-title], td[class=css-sched-waypoints], td[class=css-sched-times]");
System.out.println("::Total Count::" + row.size());
Iterator<Element> iterator = row.listIterator();
while (iterator.hasNext()) {
Element element = iterator.next();
String id = element.attr("id");
String classes = element.attr("class");
String value = element.text();
System.out.println("Id : " + id + ", classes : " + classes
+ ", value : " + value);
}
礼物
::Total Count::25
Id : , classes : css-sched-table-title, value : Saturday - Afternoon
Id : , classes : css-sched-waypoints, value : Townline and Southern
Id : , classes : css-sched-waypoints, value : Clearbrook and Blueridge
Id : , classes : css-sched-waypoints, value : Clearbrook and South Fraser
Id : , classes : css-sched-waypoints, value : Ar. Bourquin Exchange
Id : , classes : css-sched-waypoints, value : Lv. Bourquin Exchange
Id : , classes : css-sched-waypoints, value : Downtown Abbotsford
Id : , classes : css-sched-waypoints, value : McMillan and Old Yale
Id : , classes : css-sched-waypoints, value : Sandy Hill and Old Clayburn
Id : , classes : css-sched-times, value :
Id : , classes : css-sched-times, value : 6:15
Id : , classes : css-sched-times, value :
Id : , classes : css-sched-times, value : 6:20
Id : , classes : css-sched-times, value :
Id : , classes : css-sched-times, value : 6:24
Id : , classes : css-sched-times, value :
Id : , classes : css-sched-times, value : 6:34
Id : , classes : css-sched-times, value :
Id : , classes : css-sched-times, value : 6:34
Id : , classes : css-sched-times, value :
Id : , classes : css-sched-times, value : 6:40
Id : , classes : css-sched-times, value :
Id : , classes : css-sched-times, value : 6:46
Id : , classes : css-sched-times, value :
Id : , classes : css-sched-times, value : 6:54
有关Selector语法的详细用法，请参见此处.
For the detailed usage of the Selector syntax refer to here.
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