/** 新增/修改保存商户支付配置 */
 public String saveTblMchtPaymentConfig() throws Exception {
   TblMchtPaymentConfigManager tblMchtPaymentConfigMgr =
       (TblMchtPaymentConfigManager) SpringContextHolder.getBean(TblMchtPaymentConfig.class);
   if (super.perExecute(tblMchtPaymentConfig) != null) return returnCommand();
   tblMchtPaymentConfigMgr.saveTblMchtPaymentConfig(tblMchtPaymentConfig);
   super.postExecute(tblMchtPaymentConfig);
   return returnCommand();
 }