struts 2.x

最新推荐文章于 2021-12-06 21:50:57 发布

原创最新推荐文章于 2021-12-06 21:50:57 发布 · 839 阅读

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博客介绍了Struts框架相关内容，包括Application用于处理每个传入请求及提供应用级服务；Dialog用于管理与同一用户的一系列交互以完成业务交易；View用于结合视图层技术与业务逻辑交互等，还提及请求的生命周期、事件监听器、过滤器等内容。

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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.