how to extract web page textual content in java? [closed]

Closed. This question needs to be more focused. It is not currently accepting answers.

---

Want to improve this question? Update the question so it focuses on one problem only by editing this post.

开发者_如何学运维

Closed 7 years ago.

Improve this question

i am looking for a method to extract text from web page (initially html) using jdk or another library . please help

thanks

---

Use jsoup. This is currently the most elegant library for screen scraping.

URL url = new URL("http://example.com/");
Document doc = Jsoup.parse(url, 3*1000);
String title = doc.title();

I just love its CSS selector syntax.

---

Use a HTML parser if at all possible; there are many available for Java.

Or you can use regex like many people do. This is generally not advisable, however, unless you're doing very simplistic processing.

Related questions

• Java HTML Parsing
• Which Html Parser is best?
• Any good Java HTML parsers?
• recommendations for a java HTML parser/editor
• What HTML parsing libraries do you recommend in Java

Text extraction:

• Text Extraction from HTML Java
• Text extraction with java html parsers

Tag stripping:

• Stripping HTML tags in Java
• How to strip HTML attributes except “src” and “alt” in JAVA
• Removing HTML from a Java String

---

Here's a short method that nicely wraps these details (based on java.util.Scanner):

public static String get(String url) throws Exception {
   StringBuilder sb = new StringBuilder();
   for(Scanner sc = new Scanner(new URL(url).openStream()); sc.hasNext(); )
      sb.append(sc.nextLine()).append('\n');
   return sb.toString();
}

And this is how it is used:

public static void main(String[] args) throws Exception {
   System.out.println(get("http://www.yahoo.com"));
}