Java Jsoup：提取所有文本

Question

I have the follwing code. 我有下面的代码。 The doc.body.text() statement doesn't output the text within the style and the script tags. doc.body.text（）语句不输出style和script标签内的文本。 I read the .text() function code , and it looks for all instances of TextNode. 我阅读了.text（）函数代码，它查找TextNode的所有实例。 What is a TextNode in Jsoup. 什么是Jsoup中的TextNode。

And why is the script text not included in the .text() output. 以及为什么脚本文本未包含在.text（）输出中。

String contex = "<html><body><style>style</style><div>div</div><script>script</script><p>paragraph</p>body</body></html>";
    Document doc = Jsoup.parse(contex, "UTF-8");
    String text = doc.body().text();
    System.out.println("Test text : " + text);

Output : paragraphbody 输出：段落正文

Answer 1

For this you need to use org.jsoup.select.Elements to parse the tags like <script> . 为此，您需要使用org.jsoup.select.Elements来解析<script>类的标签。

String contex = "<html><body><style>style</style><div>div</div><script>scripts</script><p>paragraph</p><p>body</p><script>787878</script></body></html>";
        Document doc =Jsoup.parse(contex, "UTF-8");
         Elements scriptElements = doc.getElementsByTag("script");

         for (Element el :scriptElements ){                
                for (DataNode dn : el.dataNodes()) {
                    System.out.println(dn.getWholeData());
                }
          }

OP: OP：

scripts
787878

Answer 2

And why is the script text not included in the .text() output. 以及为什么脚本文本未包含在.text（）输出中。

Because script and style has data , not the text . 因为script和style具有数据，而不是文本。

To get data from script 's data, use getElementsByTag 要从script的数据中获取数据，请使用getElementsByTag

Elements scriptElements = doc.getElementsByTag("script");

and access by getWholeData 并通过getWholeData访问

for (Element element :scriptElements ){                
    for (DataNode node : element.dataNodes()) {
        System.out.println(node.getWholeData());
    }
    System.out.println("-------------------");            
}

As per source code , for style or script tag is treated as dataNode instead of textNode 根据源代码，对于style或script标记，将其视为dataNode而不是textNode

 void insert(Token.Character characterToken) { Node node; // characters in script and style go in as datanodes, not text nodes final String tagName = currentElement().tagName(); final String data = characterToken.getData(); if (characterToken.isCData()) node = new CDataNode(data); else if (tagName.equals("script") || tagName.equals("style")) node = new DataNode(data); else node = new TextNode(data); currentElement().appendChild(node); // doesn't use insertNode, because we don't foster these; and will always have a stack. }

Java Jsoup：提取所有文本

问题描述

2 个解决方案

解决方案1
1 2017-12-29 06:27:36

解决方案2
1 2017-12-29 06:30:04

Java Jsoup：提取所有文本

问题描述

2 个解决方案

解决方案1 1 2017-12-29 06:27:36

解决方案2 1 2017-12-29 06:30:04

解决方案1
1 2017-12-29 06:27:36

解决方案2
1 2017-12-29 06:30:04