CODEWITHSUNDEEP
javaweb-servicesrestservlet-3.0
Jayant
Jayant

Reputation: 323

Web Services vs Servlets

I have whole business logic along with its integration to database written in Java. Now I have two options: either I can write a Restful webservice to access it or I can follow the standard servlet approach to access it from UI... What are the advantages and disadvantages of both?

Upvotes: 4

Views: 2385

Answers (3)

Guilherme
Guilherme

Reputation: 623

As Thierry said, they are diferent things, and its up to you define the need of REST implementation. I would suggest an article: http://martinfowler.com/articles/microservices.html

Its a very reusable way to isolate and expose your business logic.

Upvotes: 0

Thierry Templier
Thierry Templier

Reputation: 202326

In fact, you try to compare things that are different.

REST is a style of architecture targetted distributed systems in the context of the Web technologies. Whereas it doesnt depend on the HTTP protocol, the latter is particularly suitable to implement these concepts. Implementing a RESTful service with HTTP means that we will leverage all its features and use them for the right thing. Those principles can be implemented with different technologies and in Java with different frameworks.

This link could provide you some insights about the REST concepts: https://templth.wordpress.com/2014/12/15/designing-a-web-api/.

Servlets correspond to an API and a container to handle Web applications. The container is responsible of the transport layer and let you focus on the way to handle HTTP requests and create responses. But you are free to them to build you application and use HTTP like you want. Most of time a framework is used on the top of them to implement applications. You can even implement RESTful applications with raw servlets if you want with a bit of additional work.

There are several frameworks like that:

  • Restlet (http://restlet.com/projects/restlet-framework/) that allows to create and / or consume RESTful services in Java. They can be executed in a standalone application or within a servlet container.
  • Spring MVC that provides a support to configure Web applications within lightweight container with dependency injection. The framework also provides REST support.

Hope it helps you, Thierry

Upvotes: 3

Pankaj Saboo
Pankaj Saboo

Reputation: 1185

Webservice going to help you to communicate between two application which may be having different platform(for example communication between java and .NET possible using this).

But servlet can bind u to talk within one application which is bind with java platform. you can able to talk with two java application using servlet also but for that u have change server configuration. So please understand your requirement and use it

Upvotes: 0

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