Note that if the EAR is deployed on multiple machines where users are not necessarily the same, you can still change the role to a user or group mapping at deployment time.
注意，如果该EAR被部署到多个机器上，其中用户并不一定是相同的，您仍然可以在部署时改变角色到用户或组的映射。
This approach allows you to add or remove users and change user or group information.
该方法允许您添加或删除用户并更改用户或组信息。
Change the 'group' to your user group so that you can still play the game.
改变“组”为你的用户组，这样你仍然能够玩游戏。
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