Question

我正在尝试使用jsoup从下面的HTML代码中提取内容＆lt; td＆gt;具有类css-sched-table-title和css-sched-waypoints的标签。但我无法理解，有人可以帮忙解决问题吗？

Document doc = Jsoup.parse("somelink.html");
    Elements row = doc.select(".css-sched-table-title td");
    Iterator<Element> iterator = row.listIterator();
    while(iterator.hasNext())
    {
       Element element = iterator.next();
        String value = element.text();
        System.out.println("value : " + value);
    }

  <tr>
        <td ALIGN="CENTER" COLSPAN="16"  CLASS="css-sched-table-title"><b>Saturday - </b><b>Afternoon</b></td>
    </tr>
    <tr VALIGN="BOTTOM">
        <TD>&nbsp;</TD>
        <TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Townline and Southern</TD>
        <TD>&nbsp;</TD>
        <TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Clearbrook and Blueridge</TD>
        <TD>&nbsp;</TD>
        <TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Clearbrook and South Fraser</TD>
        <TD>&nbsp;</TD>
        <TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Ar. Bourquin Exchange</TD>
        <TD>&nbsp;</TD>
        <TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Lv. Bourquin Exchange</TD>
        <TD>&nbsp;</TD>
        <TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Downtown Abbotsford</TD>
        <TD>&nbsp;</TD>
        <TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">McMillan and Old Yale</TD>
        <TD>&nbsp;</TD>
        <TD ALIGN="CENTER" WIDTH="100" CLASS="css-sched-waypoints">Sandy Hill and Old Clayburn</TD>
    </tr>

Answer 1

td个标记css-sched-table-title，但css-sched-waypoints列表。

此外，与Elements row = doc.select("td.css-sched-waypoints");的正确语法对齐，请参阅here。

注意：html文件按原样使用无效，jsoup不会将其解释为有效的表格html内容。我必须将上面的内容括在<table></table>代码中。

当我使用您的html文件尝试以下代码时：

Elements row = doc.select("td.css-sched-waypoints");
    Element title = doc.select("td.css-sched-table-title").first();

    System.out.println(title.text());
    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);
    }

我明白了，

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

无法使用java中的jsoup从html中提取内容？

1 个答案: