Question

所以这是场景。我有一个大的html文件，我想用JSoup刮。我是新手，我一直在阅读一些教程和API参考资料。我有以下html块。

<p><a name="bob"></a>
<table class='schedules'>
<tr><td  align='center' colspan="5"><b>Bob the Builder</b><br>
<a href="blah blah" class='tiny'>Blah Blah Blah</a></td></tr>
<tr><td class='bk'><a href="random/randomUrl.htm">Blah</a></td><td class='bm'><a href="random/randomUrl.htm">Blah</a></td><td class='nm'><a href="random/randomUrl.htm">blah</a></td><td class='sk'><a href="random/randomUrl.htm">blah</a></td><td class='sk'><a href="random/randomUrl.htm">Blah</a></td></tr>
<tr><td class='bk'><a href="random/randomUrl.htm">Blah</a></td><td class='bk'><a href="random/randomUrl.htm">Blah</a></td><td class='nm'><a href="random/randomUrl.htm">blah</a></td><td class='sk'><a href="random/randomUrl.htm">blah</a></td><td class='sk'><a href="random/randomUrl.htm">Blah</a></td></tr>
<tr><td class='bk'><a href="random/randomUrl.htm">Blah</a></td><td class='bm'><a href="random/randomUrl.htm">Blah</a></td><td class='sk'><a href="random/randomUrl.htm">blah</a></td><td class='sk'><a href="random/randomUrl.htm">blah</a></td><td class='sk'><a href="random/randomUrl.htm">Blah</a></td></tr>
<tr><td class='bm'><a href="random/randomUrl.htm">Blah</a></td><!--<td class='whoohaa'><a href="random/randomUrl.htm">Blah</a></td>--><td class='sk'><a href="random/randomUrl.htm">blah</a></td><td class='cc'><a href="random/randomUrl.htm">blah</a></td><td class='cc'><a href="random/randomUrl.htm">Blah</a></td><td class='sk'><a href="random/randomUrl.htm">Blah</a></td></tr>
<tr></td><td class='sk'><a href="random/randomUrl.htm">Blah</a></td><td class='nm'><a href="random/randomUrl.htm">Blah</a></td><td class='sk'><a href="random/randomUrl.htm">blah</a></td><td class='sk'><a href="random/randomUrl.htm">blah</a></td><td class='sk'><a href="random/randomUrl.htm">Blah</a></td></tr>
<tr><td class='sk'><a href="random/randomUrl.htm">Blah</a></td><td class='nm'><a href="random/randomUrl.htm">blah</a></td><td class='sk'><a href="random/randomUrl.htm">blah</a></td><td class='sk'><a href="random/randomUrl.htm">blah</a></td></tr>
</table>
</p>

现在有更多的这些块遵循类似的模式，其中（在第一行中）name属性发生变化（从“bob”变为其他东西）。我想要做的是首先能够选择“bob”p块，然后检索所有html，直到最后一行中的终止p块。

我尝试过以下方法：

Elements innerStuff = doc.select("a:contains(bob) ~ *");

但它只给了我与href atrributes的链接，我想这是预期的。但是，我很难看到我还能解决这个问题吗？

非常感谢您在这方面的帮助。

Answer 1

基于名称属性选择标签的更简单方法是：

doc.select("a[name=bob]")

从那里，您应该能够使用parent（）导航到您想要的元素（例如，获取包含链接的p标签）（您需要先调用first（）才能获得第一个（和only）匹配选择器的元素：

doc.select("a[name=bob]").first().parent()

但有一个问题：解析后的HTML文档与原始HTML不同：这是原始的HTML结构：

p
    a[name=bob]
    table
        ...

以下是解析后的HTML的样子：

p
    a[name=bob]
table
    ...
p

所以，从link标签开始，要获得该表的元素，你需要上升一级（到段落）并抓住下一个元素：

doc.select("a[name=bob]").first().parent().nextElementSibling()

使用JSoup检索p标记之间的所有html

1 个答案: