# 組件源碼 ``` /** * @category DES加密 * @param instr * 入參|待加密字符串|{@link java.lang.String} * @param key * 入參|加密密鑰|{@link java.lang.String} * @param encstr * 出參|加密后的字符串|{@link java.lang.String} * @return -1 異常<br/> * 1 成功<br/> */ @InParams(param = { @Param(name = "instr", comment = "待加密字符串", type = java.lang.String.class), @Param(name = "key", comment = "加密密鑰", type = java.lang.String.class) }) @OutParams(param = { @Param(name = "encstr", comment = "加密后的字符串", type = java.lang.String.class) }) @Returns(returns = { @Return(id = "-1", desp = "異常"), @Return(id = "1", desp = "成功") }) @Component(label = "DES加密", style = "判斷型", type = "同步組件", version = "1.0.0", deprecated = false, author = "test", date = "2018-01-19 05:08:46") public static ResultBase P_desEnc(String instr, String key) { String strErr = ""; try { key += " "; SecureRandom random = new SecureRandom(); DESKeySpec desKey = new DESKeySpec(key.getBytes()); // 創建一個密匙工廠，然后用它把DESKeySpec轉換成 SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES"); SecretKey securekey = keyFactory.generateSecret(desKey); // Cipher對象實際完成加密操作 Cipher cipher = Cipher.getInstance("DES"); // 用密匙初始化Cipher對象 cipher.init(Cipher.ENCRYPT_MODE, securekey, random); byte[] by = cipher.doFinal(instr.getBytes()); // EBCD編碼 String strRet = ""; for (int i = 0; i < by.length; i++) strRet += Integer.toString(0x200 + by[i], 16).substring(1); return ResultBase.newSuccessResult(strRet); } catch (Exception ex) { AppLog.error(ex); strErr = AppLog.errorMsg(ex); } return ResultBase.newExceptionResult("TPTS0001", "DES加密出現異常：" + strErr); } ``` # 交易中組件使用方式  # 參數說明及示例 ## 入口參數 待加密字符串：需要加密的字符串，示例： `"abc"` 加密密鑰：對待加密字符串加密的密鑰，示例： `"123"` ## 出口參數 加密后的字符串：經過加密后的字符串，示例： `__INNER__["result"]`