Java tutorial
//package com.java2s; /** * Copyright (c) 2015 nextlets.org * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies * or substantial portions of the Software. * * The Software shall be used for Good, not Evil. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ import java.lang.reflect.Method; public class Main { /** * Encodes the given string. * Implementation can be used on Android platform also. * @param src - string to encode. * @return encoded string. */ public static String encodeString(String src) { try { try { Class<?> base64class = Class.forName("android.util.Base64"); Method method = base64class.getMethod("encodeToString", new Class[] { byte[].class, int.class }); return (String) method.invoke(null, new Object[] { src.getBytes(), 2 }); } catch (ClassNotFoundException e0) { try { Class<?> base64class = Class.forName("org.apache.commons.codec.binary.Base64"); Method method = base64class.getMethod("encodeBase64String", new Class[] { byte[].class }); return (String) method.invoke(null, new Object[] { src.getBytes() }); } catch (ClassNotFoundException e1) { throw new IllegalStateException("Unable to find class for Base64 encoding."); } } } catch (NoSuchMethodException ex) { throw new IllegalStateException("Unable to find method for Base64 encoding.", ex); } catch (Exception ex) { throw new IllegalStateException("Could not invoke method for Base64 encoding.", ex); } } }