package com.wilson.EDecryption; import java.io.UnsupportedEncodingException; import junit.framework.Assert; import org.apache.commons.codec.binary.Base64; import org.junit.Test; public class Base64CoderTest { public final static String ENCODING = "UTF-8"; @Test public void testBase64() throws UnsupportedEncodingException { String inputStr="Java加密"; System.out.println("原文：\t" + inputStr); String code = new String(Base64.encodeBase64(inputStr.getBytes(ENCODING)), ENCODING); System.out.println("密文：\t" + code); String outputStr = new String(Base64.decodeBase64(code.getBytes(ENCODING))); System.out.println("解密：\t" + outputStr); Assert.assertEquals(inputStr, outputStr); } }

<dependency> <groupId>commons-codec</groupId> <artifactId>commons-codec</artifactId> <version>1.5</version> </dependency>