If a connection was not made, check to make sure the network server has been started, and that derby.system.home has been set to the full path to the data directory under the LowFareAir folder.

如果没有成功建立连接，那么检查网络服务器是否已经启动，以及derby . system . home是否被设为LowFareAir文件夹下data目录的完整路径。

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