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java - Jsoup在带有许多标签的标签后选择文本

问题描述

我想使用jsoup在每个文本之后提取一个文本。有什么方法可以选择吗？

示例代码如下：

<div class="content">
<div name="panel-summary" id="summary">
    <p>
    <strong>A: </strong>*thank you* **I want to retrieve this text**<br>
    <strong>B: </strong>*Bla..bla* *I don't want this text*<br>
    <strong>C: </strong>*what ever text* *I dont want this*                         
        <strong>D: </strong>*anythinh text* *I want this*<br>
        <strong>E: </strong>*Bla..bla* *I don't want this text*t<br>
        <strong>F: </strong>*anythinh text* *I want this*<br>
    </p>

    <p>I want this</p>

完成后，它会创建自动 id 示例 id=123

标签： javajsoupextract

解决方案

如果我们可以假设<strong>您要查找的所有元素将始终包含A:orD:或F:然后strong:matchesOwn(regex)（其中正则表达式将表示A:|D:|F:），我们可以选择这些元素。

处理后strong我们可以继续第二个<p>并通过text().

String html = "<div class=\"content\">\n" +
        "<div name=\"panel-summary\" id=\"summary\">\n" +
        "    <p>\n" +
        "    <strong>A: </strong>*thank you* **I want to retrieve this text**<br>\n" +
        "    <strong>B: </strong>*Bla..bla* *I don't want this text*<br>\n" +
        "    <strong>C: </strong>*what ever text* *I dont want this*                         \n" +
        "        <strong>D: </strong>*anythinh text* *I want this*<br>\n" +
        "        <strong>E: </strong>*Bla..bla* *I don't want this text*t<br>\n" +
        "        <strong>F: </strong>*anythinh text* *I want this*<br>\n" +
        "    </p>\n" +
        "\n" +
        "    <p>I want this</p>";

Document doc = Jsoup.parse(html);
Elements pElements = doc.select("#summary p");
Elements strongElements = pElements.first().select("strong:matchesOwn(A:|D:|F:)");
for (Element strong : strongElements) {
    System.out.println(strong.nextSibling());//get next element, including textual element
}
System.out.println("---");
System.out.println(pElements.get(1).text());//textual content of <p>I want this</p>

输出：

*thank you* **I want to retrieve this text**
*anythinh text* *I want this*
*anythinh text* *I want this*
---
I want this

如果您不想依赖内容，<strong>而只是依赖其索引，则选择所有这些，例如

Elements allStrElemens = doc.select("#summary p strong");

并简单地通过他们的索引选择你需要的（记住索引从 0 开始），比如

System.out.println(allStrElemens.get(0).nextSibling());
System.out.println(allStrElemens.get(3).nextSibling());
System.out.println(allStrElemens.get(5).nextSibling());

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