Book Image

Spring MVC Blueprints

By : Sherwin John C. Tragura
Book Image

Spring MVC Blueprints

By: Sherwin John C. Tragura

Overview of this book

Spring MVC is the ideal tool to build modern web applications on the server side. With the arrival of Spring Boot, developers can really focus on the code and deliver great value, leveraging the rich Spring ecosystem with minimal configuration. Spring makes it simple to create RESTful applications, interact with social services, communicate with modern databases, secure your system, and make your code modular and easy to test. It is also easy to deploy the result on different cloud providers. This book starts all the necessary topics in starting a Spring MVC-based application. Moving ahead it explains how to design model objects to handle file objects. save files into a data store and how Spring MVC behaves when an application deals with uploading and downloading files. Further it highlights form transactions and the user of Validation Framework as the tool in validating data input. It shows how to create a customer feedback system which does not require a username or password to log in. It will show you the soft side of Spring MVC where layout and presentation are given importance. Later it will discuss how to use Spring Web Flow on top of Spring MVC to create better web applications. Moving ahead, it will teach you how create an Invoice Module that receives and transport data using Web Services By the end of the book you will be able to create efficient and flexible real-time web applications using all the frameworks in Spring MVC.
Table of Contents (16 chapters)
Spring MVC Blueprints
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

OCS as a portal


OCS can be implemented as a portal through the Spring MVC Portlet specification. The idea is depicted in the following screenshot where all phases of the order workflow are represented as portlets running simultaneously on the applications' facade:

Each portlet can still undergo some Activiti or Web Flow if it has sub-flows to implement. Web services can be generated in order to pass data among portlets.

Controllers

Each portlet must have only one controller class. The @Controller extends org.springframework.web.portlet.DispatcherPortlet with the following component objects:

  • Portlet Request: Contains ACTION and VIEW requests; when the request type is ACTION, the Portlet container will call the processAction() method; when the request is of type VIEW, the container will call the render() method defined on the Portlet interface; also contains REQUEST parameters.

  • Render Request: Represents the request for the render phase; usually contains a GET HTTP request body.

  • Action Request:...