# 組件源碼 /** * <b>方法描述：</b> 值長度 <br/> * <b>創建者：</b> admin <br/> * <b>創建時間：</b> 2018-05-09 10:57:24 <br/> * * @param key * 入參|key|{@link java.lang.String} * @param length * 出參|長度|{@link long} * @return -1 異常<br/> * 1 成功<br/> */ @Component(label = "值長度", style = "判斷型", type = "同步組件", comment = "key對應的非string類型，就返回錯誤；key不存在返回0", version = "1.0.0", deprecated = false, author = "admin", date = "2018-05-09 10:57:24") @InParams(param = { @Param(name = "key", comment = "key", type = java.lang.String.class) }) @OutParams(param = { @Param(name = "length", comment = "長度", type = long.class) }) @Returns(returns = { @Return(id = "-1", desp = "異常"), @Return(id = "1", desp = "成功") }) public static ResultBase P_strlen(String key) { try { Long length=redisTemplate.opsForValue().size(key); return ResultBase.newSuccessResult(length); } catch (Exception e) { AppLog.error(e); return ResultBase.newExceptionResult("TPTR5013", "值長度 異常：" + AppLog.errorMsg(e)); } } 交易中組件使用方式：  ## 參數說明及示例 key：redis中的key，示例： `"qwer"` 長度：對應key的值長度，示例： `__INNER__["length"]` > key對應的非string類型，就返回錯誤；key不存在返回0