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Spring 5.0 Cookbook

Spring 5.0 Cookbook

By : Sherwin John C. Tragura
3.5 (2)
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Spring 5.0 Cookbook

Spring 5.0 Cookbook

3.5 (2)
By: Sherwin John C. Tragura

Overview of this book

The Spring framework has been the go-to framework for Java developers for quite some time. It enhances modularity, provides more readable code, and enables the developer to focus on developing the application while the underlying framework takes care of transaction APIs, remote APIs, JMX APIs, and JMS APIs. The upcoming version of the Spring Framework has a lot to offer, above and beyond the platform upgrade to Java 9, and this book will show you all you need to know to overcome common to advanced problems you might face. Each recipe will showcase some old and new issues and solutions, right from configuring Spring 5.0 container to testing its components. Most importantly, the book will highlight concurrent processes, asynchronous MVC and reactive programming using Reactor Core APIs. Aside from the core components, this book will also include integration of third-party technologies that are mostly needed in building enterprise applications. By the end of the book, the reader will not only be well versed with the essential concepts of Spring, but will also have mastered its latest features in a solution-oriented manner.
Table of Contents (14 chapters)
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Managing exceptions


Spring 5.0 has built-in API classes such as HandlerExceptionResolver and @AdviceController to handle @Controller exceptions, but this recipe will create another way to manage exceptions through an improvised handler implemented using the AOP paradigm.

Getting started

Open ch05 and add another aspect component that will monitor all methods of EmployeeServiceImpl and will catch all types of exceptions once encountered.

How to do it...

Let us improvise exception handling using AOP concepts by doing these steps:

  1. Just like in the previous recipe, verify if Employee models classes and its service implementations are in their respective packages. We will still be using the Jdbctemplate-based CRUD transactions.
  2. Other than transactions, @Aspect can also be used to trace and log some exceptions. Let us now add an aspect named ExceptionUpdateAspect in the package org.packt.aop.transaction.core that will contain two @AfterThrowing advices, namely logExceptionUpdateEmp(), which will be...

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