==== [加密后] 用户名/密码 ===== TWlyYWNsZSBMdW5h cEBzU1cwcmQ= ==== [解密后] 用户名/密码 ===== Miracle Luna p@sSW0rd
PS：改进版本使用了 StandardCharsets.UTF_8 代替了 "UTF-8"。
所以，没有抛出初始版本的 UnsupportedEncodingException 异常。
StandardCharsets.java 源码如下：
/* * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.nio.charset; /** * Constant definitions for the standard {@link Charset Charsets}. These * charsets are guaranteed to be available on every implementation of the Java * platform. * * @see <a href="Charset#standard">Standard Charsets</a> * @since 1.7 */ public final class StandardCharsets { private StandardCharsets() { throw new AssertionError("No java.nio.charset.StandardCharsets instances for you!"); } /** * Seven-bit ASCII, a.k.a. ISO646-US, a.k.a. the Basic Latin block of the * Unicode character set */ public static final Charset US_ASCII = Charset.forName("US-ASCII"); /** * ISO Latin Alphabet No. 1, a.k.a. ISO-LATIN-1 */ public static final Charset ISO_8859_1 = Charset.forName("ISO-8859-1"); /** * Eight-bit UCS Transformation Format */ public static final Charset UTF_8 = Charset.forName("UTF-8"); /** * Sixteen-bit UCS Transformation Format, big-endian byte order */ public static final Charset UTF_16BE = Charset.forName("UTF-16BE"); /** * Sixteen-bit UCS Transformation Format, little-endian byte order */ public static final Charset UTF_16LE = Charset.forName("UTF-16LE"); /** * Sixteen-bit UCS Transformation Format, byte order identified by an * optional byte-order mark */ public static final Charset UTF_16 = Charset.forName("UTF-16"); }
推荐一个在线 Base64 加密&解密的网页：https://base64.supfree.net/
对 p@sSW0rd 进行加密，效果如下：
加密前：
加密后：