1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
import nu.xom.*;
import java.io.IOException;
public class TitleSearch {
public static void main(String[] args) {
if (args.length == 0) {
System.err.println("Usage: java TitleSearch url");
return;
}
String pageURL = args[0];
Builder builder = new Builder();
try {
Document doc = builder.build(pageURL);
Element html = doc.getRootElement();
Element head = html.getFirstChildElement("head");
if (head == null) {
head = html.getFirstChildElement("head", "http://www.w3.org/1999/xhtml");
}
Element title = head.getFirstChildElement("title");
if (title == null) {
title = head.getFirstChildElement("title", "http://www.w3.org/1999/xhtml");
}
System.out.println(title.getValue());
}
catch (NullPointerException ex) {
System.err.println(pageURL + " does not have a title.");
}
catch (ParsingException ex) {
System.err.println(pageURL + " is malformed.");
}
catch (IOException ex) {
System.err.println("Could not read " + pageURL);
}
}
}
|
