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You're reading from Spring 5 Design Patterns Master efficient application development with patterns such as proxy, singleton, the template method, and more

Product type Paperback

Published in Oct 2017

Publisher Packt

ISBN-13 9781788299459

Length 396 pages

Edition 1st Edition

Languages

Java

Tools

Spring

Concepts

Application Development

Author (1):

Dinesh Rajput

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Table of Contents (13) Chapters

Preface

1. Getting Started with Spring Framework 5.0 and Design Patterns

2. Overview of GOF Design Patterns - Core Design Patterns FREE CHAPTER

3. Consideration of Structural and Behavioral Patterns

4. Wiring Beans using the Dependency Injection Pattern

5. Understanding the Bean Life Cycle and Used Patterns

6. Spring Aspect Oriented Programming with Proxy and Decorator pattern

7. Accessing a Database with Spring and JDBC Template Patterns

8. Accessing Database with Spring ORM and Transactions Implementing Patterns

9. Improving Application Performance Using Caching Patterns

10. Implementing the MVC Pattern in a Web Application using Spring

11. Implementing Reactive Design Patterns

12. Implementing Concurrency Patterns

Validating forms input parameters

In a web application, validation of the web form data is very important, because end users can submit any thing. Suppose in an application, a user submits the account form by filling in the account name, then it could create the new account in the bank with account holder name. So, we have to ensure the validity of the form data before creating the new record in the database. You do not need to handle the validation logic in the handler method. Spring provides support for the JSR-303 API. As of Spring 3.0, Spring MVC supports this Java Validation API. There isn't much configuration required to configure the Java Validation API in your Spring web application-you just add the implementation of this API in your application class path such as Hibernate Validator.

The Java Validation API has several annotations to validate the properties of the Command object. We can place constraints on the value of the properties of the Command object. In this chapter, I have...