2015-08-13 23:54:40 +02:00
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---
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layout: pattern
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title: Front Controller
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folder: front-controller
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2015-08-15 18:03:05 +02:00
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permalink: /patterns/front-controller/
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2015-08-20 21:40:07 +02:00
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categories: Presentation Tier
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tags: Java
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2015-08-13 23:54:40 +02:00
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---
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**Intent:** Introduce a common handler for all requests for a web site. This
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way we can encapsulate common functionality such as security,
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internationalization, routing and logging in a single place.
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**Applicability:** Use the Front Controller pattern when
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* you want to encapsulate common request handling functionality in single place
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* you want to implements dynamic request handling i.e. change routing without modifying code
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* make web server configuration portable, you only need to register the handler web server specific way
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**Real world examples:**
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2015-08-15 18:03:05 +02:00
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* [Apache Struts](https://struts.apache.org/)
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