Java HTML Encode htmlEncode(String string)

Description

html Encode

License

BSD License

Parameter

Parameter	Description
string	String

Return

String

Declaration

public static String htmlEncode(String string) 

Method Source Code

//package com.java2s;
/**// w  w  w  .j a v a 2  s .com
 * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
 */

public class Main {
    /**
     *
     * @param string
     *            String
     * @return String
     */
    public static String htmlEncode(String string) {
        String encoded = replaceString(string, '&', "&");
        encoded = replaceString(encoded, '<', "&lt;");
        return replaceString(encoded, '>', "&gt;");
    }

    /**
     *
     * @param original
     *            String
     * @param oldChar
     *            char
     * @param newString
     *            String
     * @return String
     */
    public static String replaceString(final String original, char oldChar, final String newString) {
        int index = original.indexOf(oldChar);
        if (index < 0) {
            return original;
        } else {
            final String replace = newString == null ? "" : newString;
            final StringBuilder buf = new StringBuilder(Math.max(16, original.length() + replace.length()));
            int last = 0;
            while (index != -1) {
                buf.append(original.substring(last, index));
                buf.append(replace);
                last = index + 1;
                index = original.indexOf(oldChar, last);
            }
            buf.append(original.substring(last));
            return buf.toString();
        }
    }

    /**
     *
     * @param original
     *            String
     * @param oldString
     *            String
     * @param newString
     *            String
     * @return String
     */
    public static String replaceString(final String original, final String oldString, final String newString) {
        int index = original.indexOf(oldString);
        if (index < 0) {
            return original;
        } else {
            final String replace = newString == null ? "" : newString;
            final StringBuilder buf = new StringBuilder(Math.max(16, original.length() + replace.length()));
            int last = 0;
            while (index != -1) {
                buf.append(original.substring(last, index));
                buf.append(replace);
                last = index + oldString.length();
                index = original.indexOf(oldString, last);
            }
            buf.append(original.substring(last));
            return buf.toString();
        }
    }
}

Related

1. htmlEncode(String str)
2. htmlEncode(String str)
3. htmlEncode(String str)
4. htmlEncode(String string)
5. HTMLEncode(String string)
6. HtmlEncode(String strInput)
7. htmlEncode(String strSrc)
8. htmlEncode(String strSrc)
9. htmlEncode(String text)