Why Jsoup cannot select td element?

问题

I have made little test (with Jsoup 1.6.1):

String s = "" +Jsoup.parse("<td></td>").select("td").size();
System.out.println("Selected elements count : " + s);

It outputs:

Selected elements count : 0

But it should return 1, because I have parsed html with td element. What is wrong with my code or is there bug in Jsoup?

回答1:

Because Jsoup is a HTML5 compliant parser and you feeded it with invalid HTML. A <td> has to go inside at least a <table>.

int size = Jsoup.parse("<table><td></td></table>").select("td").size();
System.out.println("Selected elements count : " + size);

回答2:

String url = "http://foobar.com";
Document doc = Jsoup.connect(url).get();
Elements td = doc.select("td");

回答3:

Jsoup 1.6.2 allows to parse with different parser and simple XML parser is provided. With following code I could solve my problem. You can later parse your fragment with HTML parse, to get valid HTML.

// Jsoup 1.6.2
String s = "" + Jsoup.parse("<td></td>", "", Parser.xmlParser()).select("td").size();
System.out.println("Selected elements count : " + s);

来源：https://stackoverflow.com/questions/7985791/why-jsoup-cannot-select-td-element