# 組件源碼 ``` /** * @category MD5計算簽名，指定文件 * @param contants * 入參|文件名稱 * * @return -1 異常<br/> * 0 失敗<br/> * 1 成功<br/> */ @InParams(param = { @Param(name = "fileName", comment = "待編碼文件名稱(字符串))", type = java.lang.String.class) }) @OutParams(param = { @Param(name = "md5txt", comment = "MD5簽名內容", type = java.lang.String.class) }) @Returns(returns = { @Return(id = "-1", desp = "異常"), @Return(id = "0", desp = "失敗"), @Return(id = "1", desp = "成功") }) @Component(label = "MD5計算簽名", style = "判斷型", type = "同步組件", comment="計算指定文件的MD5簽名", version = "1.0.0", deprecated = false, date = "2018-01-19 04:46:50") public static ResultBase P_md5Enc(String fileName) { if (fileName == null) { return ResultBase.newFailureResult("TPTF0038", "待編碼內容不能為空"); } try { File file = new File(fileName); return ResultBase.newSuccessResult(getMd5ByFile(file)); } catch (Exception ex) { AppLog.error(ex); return ResultBase.newExceptionResult("TPTF0039", "計算MD5異常:" + AppLog.errorMsg(ex)); } } ``` # 交易中組件使用方式  # 參數說明及示例 ## 入口參數 待編碼文件名稱(字符串))：傳入一個絕對路徑，示例： `"D:\\work\\CQYY\\workspace\\abc.txt"` ## 出口參數 MD5簽名內容：返回文件的MD5簽名，示例： `__INNER__["result"]`