可以对会话变量做任何你想要的处理。

Any processing you would like to do on session variables.

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第一步，确保用户是通过取消相关会话变量来进行注销的。

The first step is to make sure that the user is logged out by unsetting the relevant session variables.

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要使用传送的属性，请将其存储在Portlet会话变量中。

To make use the transmitted property, store it in a portlet session variable.

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