AES简单加密解密的方法实现（源码分享）

package com.mstf.aes; import java.io.UnsupportedEncodingException;import java.security.InvalidKeyException;import java.security.NoSuchAlgorithmException;import java.security.SecureRandom; import javax.crypto.BadPaddingException;import javax.crypto.Cipher;import javax.crypto.IllegalBlockSizeException;import javax.crypto.KeyGenerator;import javax.crypto.NoSuchPaddingException;import javax.crypto.SecretKey;import javax.crypto.spec.SecretKeySpec; /** * AES加密解密 * @author ceet * */public class AESUntil {	/**	 * 加密	 * 	 *	 */	public static String Ecodes(String content, String key) {		if (cOntent== null || content.length() <1)			return null; 		try {			KeyGenerator kgen = KeyGenerator.getInstance("AES");			kgen.init(128, new SecureRandom(key.getBytes()));			SecretKey secretKey = kgen.generateKey();			byte[] enCodeFormat = secretKey.getEncoded();			SecretKeySpec secretKeySpec = new SecretKeySpec(enCodeFormat, "AES");			Cipher cipher = Cipher.getInstance("AES");			byte[] byteCOntent= content.getBytes("utf-8");			cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec);			byte[] byteRresult = cipher.doFinal(byteContent);			StringBuffer sb = new StringBuffer();			for (int i = 0; i 本文来源gao@.dai.ma.com搞@^&[email protected]h (NoSuchPaddingException e) {			e.printStackTrace();		} catch (InvalidKeyException e) {			e.printStackTrace();		} catch (UnsupportedEncodingException e) {			e.printStackTrace();		} catch (IllegalBlockSizeException e) {			e.printStackTrace();		} catch (BadPaddingException e) {			e.printStackTrace();		}		return null;	} 	/**	 * 解密	 * 	 * 	 */	public static String Dcodes(String content, String key) {		if (cOntent== null || content.length() <1)			return null; 		if (content.trim().length() <19)			return content; 		byte[] byteRresult = new byte[content.length() / 2];		for (int i = 0; i