//?DES/ECB?CBC?CFB?OFB?/PKCS5Padding?NoPadding?加密/模式/填充
Cipher?cipher?=?Cipher.getInstance("DES");//默認就是?DES/ECB/PKCS5Padding
DESKeySpec?desKeySpec?=?new?DESKeySpec(key.getBytes());
SecretKeyFactory?keyFactory?=?SecretKeyFactory.getInstance("DES");
SecretKey?secretKey?=?keyFactory.generateSecret(desKeySpec);
cipher.init(1,?secretKey);
return?new?BASE64Encoder().encode(cipher.doFinal(message.getBytes("UTF-8")));
} /***?ECB模式的des解密
*?@param?message
*?@param?key
*?@return
*?@throws?Exception
*/
public?static?String?desDecrypt(String?message,?String?key)throws?Exception{Cipher?cipher?=?Cipher.getInstance("DES");
DESKeySpec?desKeySpec?=?new?DESKeySpec(key.getBytes());
SecretKeyFactory?keyFactory?=?SecretKeyFactory.getInstance("DES");
SecretKey?secretKey?=?keyFactory.generateSecret(desKeySpec);
cipher.init(2,?secretKey);
return?new?String(cipher.doFinal(Base64.decode(message)),?"UTF-8");
}妳自己寫main方法測試壹下,應該是沒問題的