如何从 Jsoup 选择器方法获取 Elements 对象

发布于 2024-11-26 10:15:20 字数 470 浏览 2 评论 0原文

我对 JSoup 很困惑。我知道我曾经让它工作过，但现在我

根本无法让它工作。中包含此代码

我实际上已经创建了一个空的 Java 类文件，并在其主类。看起来应该是这样，但事实并非如此？老实说，它看起来对我来说仍然是正确的，但是我似乎无法在我的一生中获得有效的 Elements 对象。：/

String data = HTML_DOCUMENT_CODE;

Elements allTexts = Jsoup.parse(data).select(".gc-message-sms-text");

System.out.println("string is: " + allTexts.toString());

System.out.println("size is: " + allTexts.size());

输出：

Size is: 
size is: 0

原文

I am so confused with JSoup. I know that I had it working at one point, but now I can't get

it working at all. I've literally created an empty Java Class file with this code in its

main class. It looks like it should would but however that is not the case? It still honestly looks like it's written correctly to me, however I cannot seem to get a valid Elements object for the life of me. :/

String data = HTML_DOCUMENT_CODE;

Elements allTexts = Jsoup.parse(data).select(".gc-message-sms-text");

System.out.println("string is: " + allTexts.toString());

System.out.println("size is: " + allTexts.size());

Output:

Size is: 
size is: 0

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翻身的咸鱼 2024-12-03 10:15:20

您没有解析完整的文档，而是解析一个片段，因此也许这会更好：

String data = "<span class=\"gc-message-sms-text\">asdf</span>";
Document doc = Jsoup.parseBodyFragment(data);
Element body = doc.body();
Elements allTexts = body.getElementsByClass("gc-message-sms-text");

System.out.println("string is: " + allTexts.toString());

System.out.println("size is: " + allTexts.size());

http:// /jsoup.org/cookbook/input/parse-body-fragment

You aren't parsing a complete document but a fragment so maybe this would work better:

String data = "<span class=\"gc-message-sms-text\">asdf</span>";
Document doc = Jsoup.parseBodyFragment(data);
Element body = doc.body();
Elements allTexts = body.getElementsByClass("gc-message-sms-text");

System.out.println("string is: " + allTexts.toString());

System.out.println("size is: " + allTexts.size());

http://jsoup.org/cookbook/input/parse-body-fragment

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