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                # 組件源碼 /** * <b>方法描述:</b> 截取區間字符串 <br/> * <b>創建者:</b> admin <br/> * <b>創建時間:</b> 2018-05-09 10:56:48 <br/> * * @param key * 入參|key|{@link java.lang.String} * @param start * 入參|開始位置|{@link long} * @param end * 入參|結束位置|{@link long} * @param value * 出參|范圍內字符串,包括 start 和 end|{@link java.lang.String} * @return -1 異常<br/> * 1 成功<br/> */ @Component(label = "截取區間字符串", style = "判斷型", type = "同步組件", comment = "start - end之間的子字符串,若偏移量為負數,代表從末尾開始計算,例如-1代表倒數第一個,-2代表倒數第二個", version = "1.0.0", deprecated = false, author = "admin", date = "2018-05-09 10:56:48") @InParams(param = { @Param(name = "key", comment = "key", type = java.lang.String.class), @Param(name = "start", comment = "開始位置", type = long.class), @Param(name = "end", comment = "結束位置", type = long.class) }) @OutParams(param = { @Param(name = "value", comment = "范圍內字符串,包括 start 和 end", type = java.lang.String.class) }) @Returns(returns = { @Return(id = "-1", desp = "異常"), @Return(id = "1", desp = "成功") }) public static ResultBase P_getrange(String key, long start, long end) { try { String str = redisTemplate.opsForValue().get(key, start, end); return ResultBase.newSuccessResult(str); } catch (Exception e) { AppLog.error(e); return ResultBase.newExceptionResult("TPTR5011", "截取區間字符串 異常:" + AppLog.errorMsg(e)); } } 交易中組件使用方式: ![](https://img.kancloud.cn/fb/b6/fbb62dff11b37564a7bfdeb86bf086b2_1231x750.jpg) ## 參數說明及示例 key:redis中的key,示例: `"qwer"` 開始位置:從多少位開始截取,示例: `2` 結束位置:從多少位挺直截取,示例: `5` 范圍內字符串,包括 start 和 end:截取結果,示例: `__INNER__["result"]` > start - end之間的子字符串,若偏移量為負數,代表從末尾開始計算,例如-1代表倒數第一個,-2代表倒數第二個
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