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asp論文外文翻譯---從底層了解aspnet的結(jié)構(gòu)-jsp程序-wenkub.com

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【正文】 s an IF, make a Helper)。 View Engines in MVC。又如 RSS feed,可參見 how to write a RssResult in this post。如果您希望在頁(yè)面返回給用戶時(shí)記錄日志,可以編寫自定義的 RenderFilter,在ActionResult 執(zhí)行之后記錄日志。要想在 action中封裝自己的邏輯和約定,創(chuàng)建自己的父類使所有 Controller 繼承自該類,是一種很好的方式。 更進(jìn)一步來說,例如,您可能希望從數(shù)據(jù)庫(kù)中進(jìn)行檢索,直接根據(jù) person 的 id將其轉(zhuǎn)換為 Person對(duì)象。這可能是您最有可能使用的擴(kuò)展點(diǎn),并且在我看來, controller 只關(guān)心它的主要工作,而view所需要的所有其他數(shù)據(jù)都必須從 action過濾器內(nèi)部獲取,這樣 的實(shí)現(xiàn)對(duì)于一個(gè)組織良好的 view來說,是十分關(guān)鍵的。如果您希望實(shí)現(xiàn)自己的 authorization,那么必須實(shí)現(xiàn)接口。 例如,您也許 會(huì)希望基于瀏覽器所支持的語(yǔ)言或?yàn)g覽器類型(如移動(dòng)設(shè)備的瀏覽器或桌面瀏覽器)來進(jìn)行 action 的選取。 可以參閱 NinjectActionInvoker I developed to allow injection of dependencies inside filters。 11 ActionInvoker 顧名思義是負(fù)責(zé)調(diào)用( invoke) action的。 ControllerFactory 是基于路由的組件,它選擇正確的 controller 并對(duì)其實(shí)例化。 通常情況下你可以使用正則表達(dá)式對(duì) url參數(shù)進(jìn)行約束,但如果您的約束不僅僅取決于單一參數(shù),您可以實(shí)現(xiàn) IRouteConstrains 的方法,并在其中添加你的驗(yàn)證邏輯。s an IF, make a Helper”. What is an HtmlHelper? Basically it’s just an extension method of the HtmlHelper class, but that’s the only requirement. 本文摘自 10 譯文 2 MVC 中你必須知道的 13 個(gè)擴(kuò)展點(diǎn) 摘要 MVC 設(shè)計(jì)的主要原則之一是可擴(kuò)展性。11. ActionResult MVC es with many different kind of results to render views, to render JSON, plain text, files and to redirect to other actions. But if you need some different kind of result you can write your own ActionResult and implement the ExecuteResult method. For example, if you want to send a PDF file as result you could write your own ActionResult that use a PDF library to generate the PDF. Another possible scenario is the RSS feed: read more about how to write a RssResult in this post. Look at implementing a custom action result when the only peculiarity is how the result is returned to the user. 6 原文 2 Thirteen MVC extensibility points you have to know Abstract One of the main design principles MVC has been designed with is extensibility. Everything (or most of) in the processing pipeline is replaceable so, if you don’t like the conventions (or lack of them) that MVC uses, you can create your own services to support your conventions and inject them into the main pipeline. In this post I’m going to show 13 extensibility points that every MVC developer should know, starting from the beginning of the pipeline and going forward till the rendering of the view. 1. RouteConstraint Usually you could put some constrains on url parameters using regular expressions, but if your constrains depend on something that is not only about the single parameter, you can implement the IRouteConstrains’s method and put your validation logic in it. One example of this is the validation of a date: imagine an url that has year, month and date on different url tokens, and you want to be able to validate that the three parts make a valid date. 在 IIS里所有的 HttpHandler 被映射并指向 ISAPI 擴(kuò)展,并且這些 HttpHandler也都在 ,用于把請(qǐng)求路由到指定的 HTTP處理器里執(zhí)行。 依靠擴(kuò)展名, ,該處理器則負(fù)責(zé)處理這個(gè)請(qǐng)求。這個(gè)處理器將被安裝用于處理指定的擴(kuò)展。用戶通過在瀏覽器中鍵入一個(gè) URL,點(diǎn)擊一個(gè)超鏈接,提交一個(gè) HTML表單(一個(gè) post請(qǐng)求),或者一個(gè)客戶端程序調(diào)用基于 的 WebService(通過 )。事實(shí)上,微軟 平臺(tái)上的 和 IIS的接口是通過宿主在 .NET 里的 ISAPI 擴(kuò)展來通信的,然后直達(dá) 運(yùn)行時(shí)。由于 ISAPI是底層的接口,因此它的速度也是非常的快。盡管如此,但重要的是, 的設(shè)計(jì),這使得在其之上的工作變得非常容 易,并且提供了幾乎可以鉤住請(qǐng)求處理當(dāng)中任意部分的能力。針對(duì)同一件事情,可以通過不同的處理方法完成,而且實(shí)現(xiàn)代碼都非常的直觀。在處理請(qǐng)求的每一個(gè)層面都牽涉到許多對(duì)象,但大多數(shù)對(duì)象都可以通過派生或者事件接口來擴(kuò)展。實(shí)際上這個(gè)引擎和HTTP或者 Web Server 是完全分開的。 Web請(qǐng)求的一個(gè)成熟引擎平臺(tái)。s much more than just WebForms and Web Services… is a request processing engine. It takes an ining request and passes it through its internal pipeline to an end point where you as a developer can attach code to process that request. This engine is actually pletely separated from HTTP or the Web Server. In fact, the HTTP Runtime is a ponent that you can host in your own applications outside of II
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