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                ??碼云GVP開源項目 12k star Uniapp+ElementUI 功能強大 支持多語言、二開方便! 廣告
                # 組件源碼 ``` /** * <b>方法描述:</b> 切換數據源 <br/> * <b>創建者:</b> admin <br/> * <b>創建時間:</b> 2018-05-17 16:52:09 <br/> * * @param name * 入參|數據源名稱|{@link java.lang.String} * @return -1 異常<br/> * 0 失敗<br/> * 1 成功<br/> */ @Component(label = "切換數據源", style = "判斷型", type = "同步組件", comment = "改變當前交易使用的數據源,改變只在當前線程生效", version = "1.0.0", deprecated = false, author = "admin", date = "2018-05-17 04:52:09") @InParams(param = {@Param(name = "name", comment = "數據源名稱", 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")}) public static ResultBase P_changeDatesource(String name) { if (!StringUtil.isEmpty(name)) { AppLog.debug("設置指定數據源名稱,poolName={}", name); try { DbContextHolder.setDbType(name); return ResultBase.newSuccessResult(); } catch (Exception e) { AppLog.error(e); return ResultBase.newExceptionResult("TPTD0025", "數據源" + name + "設置失敗" + AppLog.errorMsg(e)); } } return ResultBase.newFailureResult("TPTD0026", "參數錯誤:數據源名稱【name】不能為空"); } ``` # 交易中組件使用方式 ![](https://img.kancloud.cn/79/62/7962c98df7ee0cff695ad20d97f1fcbe_1867x893.png) # 參數說明及示例 ## 入口參數 數據源名稱:使用的數據源名稱,示例: `__REQ__["name"]` > 當交易部署到微服務上時,數據源在微服務界面上配置。
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