如何使用jsoup比较DOM中元素的子级

Question

I am working on a project where I have to be able to know that an element have repeated children .For example in that DOM, I want to know that the element tbody has similar children

My goal is to extract data- and store it in a database -from pages that I ignore their structure.

Answer 1

使用jQuery的让你的td元素，并遍历每个他们。

Answer 2

you can use JSOUP for this. its very easy to use as well

for example you want to get all td tag in within your document:

String html=... //your html string
Document doc = JSoup.parse(html);
Elements elements = doc.select("tbody").select("td");
System.out.println(elements.size()); //prints number of td within tbody REGARDLESS of where in the DOM tree they live. 

Edit1:

to get all elements you can do:

for(Element e : doc.getAllElements){
  System.out.println(e.getTagName());//prints the tag name
}