In this example, the NextViewData can be retrieved from a request scope attribute.
在本例中，可以从请求作用属性中寻回NextViewData。
When this attribute isn't present or is FALSE the action's request parameters are only maintained for the duration of the portlet request scope.
当这个属性没有出现或者值为FALSE时，只在portlet请求作用域维护动作的请求参数。
The scope attribute specifies whether a bean exists in application scope, request scope, or some other scope.
scope属性指定application 作用域、request 作用域或其他作用域中是否存在一个bean。
The scope attribute tells Struts how long the ActionErrors, created by handling the exception, should be saved (session or request).
scope属性告诉StrutsActionErrors（在处理异常时被创建）应该被保存多长时间（会话或请求）。
Is the name of the request-scope or session-scope attribute under which the form bean is accessed, if the name is not the same as the bean's specified name.
可以访问这个Formbean的请求范围或会话范围的属性名，条件是名字与这个bean指定的名字不同。
Is the name of the request-scope or session-scope attribute under which the form bean is accessed, if the name is not the same as the bean's specified name.
可以访问这个Formbean的请求范围或会话范围的属性名，条件是名字与这个bean指定的名字不同。
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