How to Convert symbols (acute characters in HTML above all) and keep like in acute characters in HTML

Question

I've been searching in google, but I've not found any answer for my trouble.

I was testing my Java Application and I've noticed that when I created a username with accented characters (HTML special characters such as á, é, í, ó, ú) it didn't show that characters well. I mean, for example: a user called Álvaro shows �lvaro.

Do you know any function in Java that converts that special characters?

How are you obtaining the output stream to which you write these characters? What headers are you serving the HTML with? — Mike Samuel, May 17 '13 at 12:17

score 0 · Answer 1 · answered May 17 '13 at 11:47

0

you need to escape HTML character using StringEscapeUtils.escapeHtml.

 StringEscapeUtils.escapeHtml("Ávaro");

answered May 17 '13 at 11:47

Subhrajyoti Majumder

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Maybe mention that it's from [Apache Commons](http://commons.apache.org/proper/commons-lang/javadocs/api-3.1/org/apache/commons/lang3/StringEscapeUtils.html). – Mike Samuel May 17 '13 at 12:13
Yes it is, actually I forgot to mention that :) – Subhrajyoti Majumder May 17 '13 at 16:06

score 0 · Answer 2 · answered May 17 '13 at 11:54

0

You can also change your HTML page encoding to UTF-8...

For a page HTML created in eclipse you insert this header in the page

<%@ page language="java"
contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>

answered May 17 '13 at 11:54

Manuel Pires

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Isn't this JSP specific? For an arbitrary HTML page, you should use a `` tag as explained at [meta charset vs http-equiv](http://stackoverflow.com/questions/4696499/meta-charset-utf-8-vs-meta-http-equiv-content-type) – Mike Samuel May 17 '13 at 12:16

score 0 · Answer 3 · answered May 17 '13 at 12:45

Ideally, you server your HTML with a Content-type header that specifies the charset used to encode the HTML.

If that's not an option, the easiest way to encode non-ASCII characters in such a way that you can server HTML with any charset is to use numeric entities : 'Á' -> Á.

If you know that your content is already HTML, then the below will escape it so that it can be served using a wide variety of encodings including ASCII and UTF-8.

public static String escapeHTML(String htmlTextNodeValue) {
  int n = htmlTextNodeValue.length();
  int encoded = 0;
  StringBuilder out = null;
  for (int i = 0, charCount; i < n; i += charCount) {
    int codePoint = htmlTextNodeValue.codePointAt(i);
    charCount = Character.charCount(codePoint);

    if (codePoint > 0x7f
        || codePoint == '<' || codePoint == '>' || codePoint == '&'
        || codePoint == '"' || codePoint == '\'') {
      if (out = null) { out = new StringBuilder(n + 1024); }
      out.append(htmlTextNodeValue, encoded, i));
      encoded = i + charCount;
      switch (codePoint) {
        case '<': out.append("&lt;"); break;
        case '>': out.append("&gt;"); break;
        case '&': out.append("&amp;"); break;
        default:  out.append("&#").append(codePoint).append(';');
      }            
    }
  }
  if (out != null) {
    return out.append(htmlTextNodeValue, encoded, n).toString();
  } else {
    return htmlTextNodeValue;
  }
}

How to Convert symbols (acute characters in HTML above all) and keep like in acute characters in HTML

3 Answers3