AES加密和解密

package com.jn;import java.net.URLDecoder;import javax.crypto.Cipher;import javax.crypto.spec.SecretKeySpec;import sun.misc.BASE64Decoder;import sun.misc.BASE64Encoder;public class AESUtil {public static final String DEFAULT_KEY = "123!@#abcs59aYGM";/** * 加密--把加密后的byte数组先进行二进制转16进制在进行base64编码 *  * @param sSrc * @param sKey * @return * @throws Exception */public static String encrypt(String sSrc, String sKey) throws Exception {if (sKey == null) {throw new IllegalArgumentException("Argument sKey is null.");}if (sKey.length() != 16) {throw new IllegalArgumentException("Argument sKey'length is not 16.");}byte[] raw = sKey.getBytes("ASCII");SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");Cipher cipher = Cipher.getInstance("AES");cipher.init(Cipher.ENCRYPT_MODE, skeySpec);byte[] encrypted = cipher.doFinal(sSrc.getBytes("UTF-8"));String tempStr = parseByte2HexStr(encrypted);BASE64Encoder encoder = new BASE64Encoder();return encoder.encode(tempStr.getBytes("UTF-8"));}/** * 解密--先 进行base64解码，在进行16进制转为2进制然后再解码 *  * @param sSrc * @param sKey * @return * @throws Exception */public static String decrypt(String sSrc, String sKey) throws Exception {if (sKey == null) {throw new IllegalArgumentException("499");}if (sKey.length() != 16) {throw new IllegalArgumentException("498");}byte[] raw = sKey.getBytes("ASCII");SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");Cipher cipher = Cipher.getInstance("AES");cipher.init(Cipher.DECRYPT_MODE, skeySpec);BASE64Decoder encoder = new BASE64Decoder();byte[] encrypted1 = encoder.decodeBuffer(sSrc);String tempStr = new String(encrypted1, "utf-8");encrypted1 = parseHexStr2Byte(tempStr);byte[] original = cipher.doFinal(encrypted1);String originalString = new String(original, "utf-8");return originalString;}/** * 将二进制转换成16进制 *  * @param buf * @return */public static String parseByte2HexStr(byte buf[]) {StringBuffer sb = new StringBuffer();for (int i = 0; i < buf.length; i++) {String hex = Integer.toHexString(buf[i] & 0xFF);if (hex.length() == 1) {hex = '0' + hex;}sb.append(hex.toUpperCase());}return sb.toString();}/** * 将16进制转换为二进制 *  * @param hexStr * @return */public static byte[] parseHexStr2Byte(String hexStr) {if (hexStr.length() < 1)return null;byte[] result = new byte[hexStr.length() / 2];for (int i = 0; i < hexStr.length() / 2; i++) {int high = Integer.parseInt(hexStr.substring(i * 2, i * 2 + 1), 16);int low = Integer.parseInt(hexStr.substring(i * 2 + 1, i * 2 + 2),16);result[i] = (byte) (high * 16 + low);}return result;}public static void main(String[] args) throws Exception {//String te = "action=register#mobile=13168766551#giftID=2707#workID=lengDeng#url=http://www.163.com/";String te = "action=regist";String decString =AESUtil.encrypt(te,DEFAULT_KEY);System.out.println("加密 : "+decString);//decString = URLDecoder.decode(decString, "GBK");//System.err.println(decString);String s = AESUtil.decrypt(decString, DEFAULT_KEY);System.out.println("解密 : " + s);}}