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;}}}

public class FileEncrypt {public static void Encrypt(){InputStream inputStream;try {inputStream = new FileInputStream("src/main/resources/config.properties");FileOutputStream fos = new FileOutputStream("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 = new FileOutputStream("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();}
}

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