blocks|key|642068|text|这两句话：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|642069|HttpModule将对应用程序的每个请求执行，而不考虑扩展名，通常用于安全性、统计、日志记录等。|642070|HttpHandler通常与特定的扩展相关联，并且用于诸如RSS、动态图像生成或修改等之类的事情。|642071|如果这还不是完全清楚的话，还有更多的解释：|642072|在我看来，模块“插入”到请求管道中，而处理程序“处理”特定的文件扩展名。因此，如果您有一个具有LoggingModule和PdfHandler的站点，这两个都将针对对http://example.com/sample.pdf的请求执行，而日志记录模块将单独针对对http://example.com/page.aspx的请求执行。|offset|length|642073|在MSDN上有一篇非常明确的文章：HTTP+Handlers+and+HTTP+Modules+Overview|642074|entityMap|0|LINK|mutability|MUTABLE|url|http://example.com/sample.pdf|1|http://example.com/page.aspx|2|http://msdn.microsoft.com/en-us/library/bb398986.aspx^0|0|0|0|0|2B|T|0|3N|S|1|0|H|13|2|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|10|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|11|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|12|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|13|8|@]|9|@$J|14|K|15|1|16]|$J|17|K|18|1|19]]|A|$]]|$1|L|3|M|5|6|7|1A|8|@]|9|@$J|1B|K|1C|1|1D]]|A|$]]|$1|N|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]|V|$5|Q|R|S|A|$T|W]]|X|$5|Q|R|S|A|$T|Y]]]]

The two sentences:

An HttpModule will execute for every request to your application, regardless of extension, and is generally used for things like security, statistics, logging, etc.

An HttpHandler is generally associated with a specific extension, and is used for things like RSS feeds, dynamic image generation or modification, and the like.

A little more explanation if that's not completely clear:

The way I think about them - modules "plug in" to the request pipeline, whereas handlers "handle" a specific file extension. So, if you've got a site with a LoggingModule and a PdfHandler, both will execute for a request to <a href="http://example.com/sample.pdf" rel="noreferrer">http://example.com/sample.pdf</a>, and the logging module alone will execute for a request to <a href="http://example.com/page.aspx" rel="noreferrer">http://example.com/page.aspx</a>.

There's a pretty clear article on the difference on MSDN: <a href="http://msdn.microsoft.com/en-us/library/bb398986.aspx" rel="noreferrer">HTTP Handlers and HTTP Modules Overview</a>

blocks|key|642107|text|HttpHandler是请求列车的目的地。HttpModule是一个沿途的车站。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|642108|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

HttpHandler is where the request train is headed. HttpModule is a station along the way.

blocks|key|642157|text|HTTP处理程序是响应对ASP.NET应用程序的请求而运行的进程。HTTP模块允许您检查传入和传出的请求，并根据请求采取操作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|642158|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

HTTP handler is the process that runs in response to a request made to an ASP.NET Web application.
HTTP modules let you examine incoming and outgoing requests and take action based on the request.

blocks|key|642220|text|HTTP处理程序是根据设置实际执行编译的地方。例如，如果页面扩展名是.aspx，那么它将通过system.web.Ui.Pagahandlefactory进行编译。一旦在HTTP上完成编译，句柄请求就会经过HTTP模块和IIS。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|642221|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

HTTP handler is where actually compilation is done based on setting. such as if page extension is .aspx then it will compile through system.web.Ui.Pagahandlefactory. once compilation is done at HTTP handle request will go though HTTP module and IIS.

blocks|key|859704|text|关于它的很好的文章HttpModule-and-HttpHandlers|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|859705|参考:信息:+HTTP模块和ASP.NET处理程序概述|859706|“模块在处理程序执行之前和之后调用。模块使开发人员能够拦截、参与或修改每个单独的请求。处理程序用于处理各个端点请求。处理程序使ASP.NET框架能够处理应用程序中的单个HTTP或URL扩展组。与模块不同，只有一个处理程序用于处理请求。|859707|entityMap|0|LINK|mutability|MUTABLE|url|http://www.codeproject.com/Articles/30907/The-Two-Interceptors-HttpModule-and-HttpHandlers^0|9|R|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]]]

Nice article aboute it <a href="http://www.codeproject.com/Articles/30907/The-Two-Interceptors-HttpModule-and-HttpHandlers" rel="nofollow">HttpModule-and-HttpHandlers</a>

Reference: INFO: ASP.NET HTTP Modules and HTTP Handlers Overview

“Modules are called before and after the handler executes. Modules enable developers to intercept, participate in, or modify each individual request. Handlers are used to process individual endpoint requests. Handlers enable the ASP.NET Framework to process individual HTTP URLs or groups of URL extensions within an application. Unlike modules, only one handler is used to process a request”.

blocks|key|642437|text|HttpHandler负责通过扩展处理http请求，而HttpModule负责响应应用程序生命周期事件。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|642438|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

HttpHandler is responsible for handling http request by extension while HttpModule is responding to application life cycle events.

blocks|key|642543|text|HTTP处理程序|type|unstyled|depth|inlineStyleRanges|entityRanges|data|642544|HTTP处理程序是响应HTTP请求而运行的进程。因此，每当用户请求文件时，处理程序都会根据扩展名对其进行处理。因此，当您需要根据文件扩展名进行特殊处理时，会创建自定义http处理程序。让我们考虑一个为站点创建RSS的示例。因此，创建一个生成RSS格式的XML的处理程序。现在将.rss扩展绑定到自定义处理程序。|642545|HTTP模块|642546|HTTP模块插入到请求的生命周期中。因此，当一个请求被处理时，它会通过该请求管道中的所有模块。因此，http模块通常用于：|642547|安全性:用于在处理请求之前对请求进行身份验证。|642548|统计和日志记录:由于每个请求都会调用模块，因此它们可用于收集统计信息和日志记录信息。|642549|自定义头部:由于响应可以修改，因此可以在响应中添加自定义头部信息。|642550|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|R|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|S|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|T|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|U|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|V|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|O|$]]

HTTP Handler

HTTP Handler is the process which runs in response to a HTTP request. So whenever user requests a file it is processed by the handler based on the extension. So, custom http handlers are created when you need to special handling based on the file name extension. Let's consider an example to create RSS for a site. So, create a handler that generates RSS-formatted XML. Now bind the .rss extension to the custom handler.

HTTP Modules

HTTP Modules are plugged into the life cycle of a request. So when a request is processed it is passed through all the modules in the pipeline of the request. So generally http modules are used for:

Security: For authenticating a request before the request is handled.

Statistics and Logging: Since modules are called for every request they can be used for gathering statistics and for logging information.

Custom header: Since response can be modified, one can add custom header information to the response.

Can someone explain in less than 2 sentences the difference between both? Yes, I know google can provide hundreds of answers but not one in 2 clear sentences:)

HTTP handler vs HTTP module

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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有人能用不到两句话解释一下两者之间的区别吗？是的，我知道谷歌可以提供数百个答案，但不是2个清晰的句子中的一个：)

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