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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # 組件源碼 /** * <b>方法描述:</b> 減(整數) <br/> * <b>創建者:</b> admin <br/> * <b>創建時間:</b> 2018-05-09 09:37:43 <br/> * * @param key * 入參|key|{@link java.lang.String} * @param value * 入參|減數|{@link long} * @param newvalue * 出參|計算后的新值|{@link long} * @return -1 異常<br/> * 1 成功<br/> */ @Component(label = "減(整數)", style = "判斷型", type = "同步組件", comment = "指定key的值減少某個值,key不存在,則在執行操作之前將其設置為0。如果鍵包含錯誤類型的值或包含不能表示為整數的字符串,則返回錯誤。此操作限制為64位有符號整數", version = "1.0.0", deprecated = false, author = "admin", date = "2018-05-09 09:37:43") @InParams(param = { @Param(name = "key", comment = "key", type = java.lang.String.class), @Param(name = "value", comment = "減數", type = long.class) }) @OutParams(param = { @Param(name = "newvalue", comment = "計算后的新值", type = long.class) }) @Returns(returns = { @Return(id = "-1", desp = "異常"), @Return(id = "1", desp = "成功") }) public static ResultBase P_decrBy(String key, long value) { try { Long v = redisTemplate.opsForValue().decrement(key, value); return ResultBase.newSuccessResult(v); } catch (Exception e) { AppLog.error(e); return ResultBase.newExceptionResult("TPTR0001", "減(整數) 異常:" + AppLog.errorMsg(e)); } } 交易中組件使用方式: ![](https://img.kancloud.cn/00/5b/005b9ea75fc309c82eb3673ea2441a67_1005x750.jpg) ## 參數說明及示例 key:redis中的key,示例: `"qwer"` 減數:減數,示例: `5` 計算后的新值:redis的值減去減數后的結果,示例: `__INNER__["result"]` > 指定key的值減少某個值,key不存在,則在執行操作之前將其設置為0。如果鍵包含錯誤類型的值或包含不能表示為整數的字符串,則返回錯誤。此操作限制為64位有符號整數
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