how to convert HTML text to plain text? [duplicate]

This question already has answers here: 开发者_运维百科 Remove HTML tags from a String (35 answers) Closed 1 year ago.

friend's I have to parse the description from url,where parsed content have few html tags,so how can I convert it to plain text.

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Yes, Jsoup will be the better option. Just do like below to convert the whole HTML text to plain text.

String plainText= Jsoup.parse(yout_html_text).text();

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Just getting rid of HTML tags is simple:

// replace all occurrences of one or more HTML tags with optional
// whitespace inbetween with a single space character 
String strippedText = htmlText.replaceAll("(?s)<[^>]*>(\\s*<[^>]*>)*", " ");

But unfortunately the requirements are never that simple:

Usually, <p> and <div> elements need a separate handling, there may be cdata blocks with > characters (e.g. javascript) that mess up the regex etc.

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You can use this single line to remove the html tags and display it as plain text.

htmlString=htmlString.replaceAll("\\<.*?\\>", "");

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Use Jsoup.

Add the dependency

<dependency>
  <!-- jsoup HTML parser library @ https://jsoup.org/ -->
  <groupId>org.jsoup</groupId>
  <artifactId>jsoup</artifactId>
  <version>1.13.1</version>
</dependency>

Now in your java code:

public static String html2text(String html) {
        return Jsoup.parse(html).wholeText();
    }

Just call the method html2text with passing the html text and it will return plain text.

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Use a HTML parser like htmlCleaner

For detailed answer : How to remove HTML tag in Java

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I'd recommend parsing the raw HTML through jTidy which should give you output which you can write xpath expressions against. This is the most robust way I've found of scraping HTML.

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If you want to parse like browser display, use:

import net.htmlparser.jericho.*;
import java.util.*;
import java.io.*;
import java.net.*;

public class RenderToText {
    public static void main(String[] args) throws Exception {
        String sourceUrlString="data/test.html";
        if (args.length==0)
          System.err.println("Using default argument of \""+sourceUrlString+'"');
        else
            sourceUrlString=args[0];
        if (sourceUrlString.indexOf(':')==-1) sourceUrlString="file:"+sourceUrlString;
        Source source=new Source(new URL(sourceUrlString));
        String renderedText=source.getRenderer().toString();
        System.out.println("\nSimple rendering of the HTML document:\n");
        System.out.println(renderedText);
  }
}

I hope this will help to parse table also in the browser format.

Thanks, Ganesh

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I needed a plain text representation of some HTML which included FreeMarker tags. The problem was handed to me with a JSoup solution, but JSoup was escaping the FreeMarker tags, thus breaking the functionality. I also tried htmlCleaner (sourceforge), but that left the HTML header and style content (tags removed). http://stackoverflow.com/questions/1518675/open-source-java-library-for-html-to-text-conversion/1519726#1519726

My code:

return new net.htmlparser.jericho.Source(html).getRenderer().setMaxLineLength(Integer.MAX_VALUE).setNewLine(null).toString();

The maxLineLength ensures lines are not artificially wrapped at 80 characters. The setNewLine(null) uses the same new line character(s) as the source.

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I use HTMLUtil.textFromHTML(value) from

<dependency>
    <groupId>org.clapper</groupId>
    <artifactId>javautil</artifactId>
    <version>3.2.0</version>
</dependency>

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Using Jsoup, I got all the text in the same line.

So I used the following block of code to parse HTML and keep new lines:

private String parseHTMLContent(String toString) {
    String result = toString.replaceAll("\\<.*?\\>", "\n");
    String previousResult = "";
    while(!previousResult.equals(result)){
        previousResult = result;
        result = result.replaceAll("\n\n","\n");
    }
    return result;
}

Not the best solution but solved my problem :)