J2EE配置文件加密

public class SecurityHelper {     /**      * 加密      * @param text 待加密内容      * @param key  密钥      * @return 密文      */     public static String DESEncrypt(String text, String key)     {         try         {             // 进行3-DES加密后的内容的字�?             DESedeKeySpec dks = new DESedeKeySpec(key.getBytes());             SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");             SecretKey skey = keyFactory.generateSecret(dks);             Cipher cipher = Cipher.getInstance("DESede");             cipher.init(Cipher.ENCRYPT_MODE, skey);             byte[] encryptedData = cipher.doFinal(text.getBytes());             // 进行3-DES加密后的内容进行BASE64编码             BASE64Encoder base64en = new BASE64Encoder();             return base64en.encode(encryptedData);         } catch (Exception e){             e.printStackTrace();             return text;         }     }     /**      * 解密      * @param text 待解密内容      * @param key 密钥      * @return      */     public static String DESDecrypt(String text, String key)     {         try         {             // 进行3-DES加密后的内容进行BASE64解码             BASE64Decoder base64Decode = new BASE64Decoder();             byte[] base64DValue = base64Decode.decodeBuffer(text);             // 进行3-DES解密后的内容的字�?             DESedeKeySpec dks = new DESedeKeySpec(key.getBytes());             SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");             SecretKey skey = keyFactory.generateSecret(dks);             Cipher cipher = Cipher.getInstance("DESede");             cipher.init(Cipher.DECRYPT_MODE, skey);             byte[] encryptedData = cipher.doFinal(base64DValue);             return new String(encryptedData);         } catch (Exception e)         {             e.printStackTrace();             return text;         }     }                                                                        }

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public class FileEncrypt {                public static void Encrypt()     {         InputStream inputStream;         try {             inputStream = new FileInputStream("src/main/resources/config.properties");             FileOutputStream fos = newFileOutputStream("src/main/resources/configEncrypt.properties");             Scanner scanner = new Scanner(inputStream, "UTF-8");             String text = scanner.useDelimiter("\\A").next();             scanner.close();                                String encode = SecurityHelper.DESEncrypt(text, "as!2e4b4%1b6e2&ba5.-011b?720f-=+");             System.out.println("============================加密前=============================");             System.out.println(text);             System.out.println("============================加密后=============================");             System.out.println(encode);             fos.write(encode.getBytes("UTF-8"));             fos.flush();             fos.close();                            } catch (Exception e) {             e.printStackTrace();         }     }                public static void DEcrypt()     {         InputStream inputStream;         try {             inputStream = new FileInputStream("src/main/resources/configEncrypt.properties");             FileOutputStream fos = newFileOutputStream("src/main/resources/configDecrypt.properties");             Scanner scanner = new Scanner(inputStream, "UTF-8");             String text = scanner.useDelimiter("\\A").next();             scanner.close();                                String code = SecurityHelper.DESDecrypt(text, "as!2e4b4%1b6e2&ba5.-011b?720f-=+");             System.out.println("============================解密前=============================");             System.out.println(text);             System.out.println("============================解密后=============================");             System.out.println(code);             fos.write(code.getBytes("UTF-8"));             fos.flush();             fos.close();                            } catch (Exception e) {             e.printStackTrace();         }     }                public static void main(String[] args)     {         Encrypt();         DEcrypt();     } }