asp論文外文翻譯---從底層了解asp.net的結構

1、1原文 原文 1A low-level Look at the ASP.NET ArchitectureAbstractASP.NET is a powerful platform for building Web applications that provides a tremendous amount of flexibility and power for building just about any kind of Web

2、application. Most people are familiar only with the high level frameworks like WebForms and WebServices which sit at the very top level of the ASP.NET hierarchy. In this article I’ll describe the lower level aspects of A

3、SP.NET and explain how requests move from Web Server to the ASP.NET runtime and then through the ASP.NET Http Pipeline to process requests. What is ASP.NETLet’s start with a simple definition: What is ASP.NET? I like to

4、define ASP.NET as follows:ASP.NET is a sophisticated engine using Managed Code for front to back processing of Web Requests.It's much more than just WebForms and Web Services…ASP.NET is a request processing engine. I

5、t takes an incoming 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 completely separated from HTTP or the Web

6、Server. In fact, the HTTP Runtime is a component that you can host in your own applications outside of IIS or any server side application altogether. The runtime provides a complex yet very elegant mechanism for routing

7、requests through this pipeline. There are a number of interrelated objects, most of which are extensible either via subclassing or through event interfaces at almost every level of the process, so the framework is highly

8、 extensible. Through this mechanism it’s possible to hook into very low level interfaces such as the caching, authentication and authorization. You can even filter content by pre or post processing requests or simply rou

9、te incoming requests that match a specific signature directly to your code or another URL. There are a lot of different ways to accomplish the same thing, but all of the approaches are straightforward to implement, yet p

10、rovide flexibility in finding the best match for performance and ease of development.The entire ASP.NET engine was completely built in managed code and all of the extensibility functionality is provided via managed code

11、extensions. This is a testament to the power of the .NET framework in its ability to build sophisticated and very performance oriented architectures. Above all though, the most impressive part of ASP.NET is the thoughtfu

12、l design that makes the architecture easy to work with, yet provides hooks into just about any part of the request processing.3ISAPI is the initial code point that marks the beginning of an ASP.NET request. ASP.NET maps