我已经阅读了这些内容，但仍然对我将编写 http 处理程序而不是 http 模块(反之亦然)的用例感到困惑。每个用例的一些示例将有所帮助
最佳答案
HTTP Handlers and HTTP Modules Overview
Typical uses for custom HTTP handlers include the following:
RSS feeds To create an RSS feed for a Web site, you can create a handler that emits RSS-formatted XML. You can then bind a file name extension such as .rss to the custom handler. When users send a request to your site that ends in .rss, ASP.NET calls your handler to process the request.
Image server If you want a Web application to serve images in a variety of sizes, you can write a custom handler to resize images and then send them to the user as the handler's response.
Typical uses for HTTP modules include the following:
Security Because you can examine incoming requests, an HTTP module can perform custom authentication or other security checks before the requested page, XML Web service, or handler is called. In Internet Information Services (IIS) 7.0 running in Integrated mode, you can extend forms authentication to all content types in an application.
Statistics and logging Because HTTP modules are called on every request, you can gather request statistics and log information in a centralized module, instead of in individual pages.
Custom headers or footers Because you can modify the outgoing response, you can insert content such as custom header information into every page or XML Web service response.
关于iis - 何时编写处理程序或模块.. 任何示例？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/4833254/