J2EE客户端程序将调用该方法更改total值和传送通知消息。
This J2EE client application calls this method to change the value of total and send a notification message.
Portlet 的状态只能通过 action 请求在该方法中更改。
The portlet's state can only be changed within this method using the action request.
该方法允许您添加或删除用户并更改用户或组信息。
This approach allows you to add or remove users and change user or group information.
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