Java URL Encode encode(String s, String encoding)

Description

Calls java.net.URLEncoder.encode(String, String) via reflection, if we are running on JRE 1.4 or later, otherwise reverts to the deprecated URLEncoder.encode(String) method.

License

Open Source License

Parameter

Parameter	Description
s	the string to encode.
encoding	the encoding.

Return

The encoded string.

Declaration

public static String encode(String s, String encoding)

Method Source Code

//package com.java2s;
/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2013, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version./* w  w w.ja v  a  2 s.  com*/
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
 * Other names may be trademarks of their respective owners.]
 *
 * -----------------
 * URLUtilities.java
 * -----------------
 * (C) Copyright 2007, 2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributors:     -;
 *
 * Changes:
 * --------
 * 17-Apr-2007 : Version 1 (DG);
 *
 */

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URLEncoder;

public class Main {
    /** Constant used by {@link #encode(String, String)}. */
    private static final Class[] STRING_ARGS_2 = new Class[] {
            String.class, String.class };

    /**
     * Calls <code>java.net.URLEncoder.encode(String, String)</code> via
     * reflection, if we are running on JRE 1.4 or later, otherwise reverts to
     * the deprecated <code>URLEncoder.encode(String)</code> method.
     *
     * @param s  the string to encode.
     * @param encoding  the encoding.
     *
     * @return The encoded string.
     *
     * @since 1.0.6
     */
    public static String encode(String s, String encoding) {
        Class c = URLEncoder.class;
        String result = null;
        try {
            Method m = c.getDeclaredMethod("encode", STRING_ARGS_2);
            try {
                result = (String) m.invoke(null,
                        new Object[] { s, encoding });
            } catch (InvocationTargetException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        } catch (NoSuchMethodException e) {
            // we're running on JRE 1.3.1 so this is the best we have...
            result = URLEncoder.encode(s);
        }
        return result;
    }
}