reading html file line by line using java

Question

I want to read a html file line and line and need to store the elements .for textbox i have to store the id,name,type attribute values into some collection. In the same i need to get attributes for checkbox, radiobox etc

Is their any API to parse the html file line by line.

Before attempting to parse HTML with anything, take a look at the top answer here: http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags — NickJ, Mar 06 '14 at 12:30
Check this out http://stackoverflow.com/questions/2168610/which-html-parser-is-the-best — Laura, Mar 06 '14 at 12:34

score 2 · Answer 1 · answered Mar 06 '14 at 12:36

2

You can use a DOM Parser and read all Elements and Attributes. Or you could use this library(jsoup) which is based on the DOM Parser.

answered Mar 06 '14 at 12:36

Klemens Morbe

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1

I would have recommended jsoup, simple and easy to use with very good documentation. +1 – tpbapp Mar 06 '14 at 12:38
reading the input elements using jsoup like "doc.getElementsByTag("input")". By using this i am able to read the attribute values. but the problem is, i should not hardcode the word "input" or "form" or "textarea". – Mar 06 '14 at 12:46

score 1 · Answer 2 · answered Mar 06 '14 at 12:40

Use Class StringBuilder

 StringBuilder contentBuilder = new StringBuilder();
 try {
      BufferedReader in = new BufferedReader(new FileReader("mypage.html"));
      String str;
      while ((str = in.readLine()) != null) {
          contentBuilder.append(str);
      }
      in.close();
 } catch (IOException e) {
      System.err.println("HTML File Read Error: " + e.getMessage());
 }
 String content = contentBuilder.toString();

score 0 · Answer 3 · answered Mar 06 '14 at 12:35

0

No, since that doesn't make sense: HTML has no useful notion of "line". What you need to do is read the HTML element by element.

There are lots of parsers for XML but HTML is a more lenient, so you need a special parser for it. Try JTidy.

answered Mar 06 '14 at 12:35

Aaron Digulla

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score 0 · Answer 4 · answered Mar 06 '14 at 12:35

0

NekoHTML is one of the many html parsers that you could use.

answered Mar 06 '14 at 12:35

Hirak

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reading html file line by line using java

4 Answers4