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struts 2.x |
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作者：未知 来源：月光软件站 加入时间：2005-2-28 月光软件站 |
struts 2.x将改变目前1.x中只使用单一控制器来处理所有流程的局面，增强处理复杂交互界面的能力（比如类似于Wizard Dialog的功能）。
下面三个元素是2.x中引入的最主要的部分：
- Application - Framework for performing processing that is required on every incoming request, plus a place to plug in application-wide services that are offered as standard plug-ins.
- Dialog - Framework for managing a series of individual interactions with the same user, necessary to complete a particular business transaction, plus a mechanism for plugging in predefined dialog services that are offered as standard plug-ins.
- View - Framework for elegantly combining a view tier technology that actually composes an individual HTTP response with the corresponding business logic interactions (to retrieve or modify data in the model tier), as well as handle user interface events activated by the user.
另外，2.x将利用servlet 2.4规范中的一些新特性:
- Lifecycle and event listeners for requests (as well as sessions and the entire application).
- Filters can be applied across RequestDispatcher calls, not only on the original request.
- Ability to specify a servlet path as a welcome file, without needing an actual artifact.
- Clarifications in ordering of event handler calls ensure consistent behavior across implementations.
Details:http://svn.apache.org/viewcvs.cgi/*checkout*/struts/trunk/contrib/struts-shale/README.html 
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