Spring ThreadPoolTaskExecutor with Callable interface for concurrency programming

http://javasampleapproach.com/spring-framework/spring-core/spring-threadpooltaskexecutor-callable-interface-concurrency-programming

Spring ThreadPoolTaskExecutor with Callable interface for concurrency programming

Callable is a Java interface that is an useful methodology for control multi-threading returns on concurrency development.
The tutorial will guide you to build a concurrency program with ThreadPoolTaskExecutor of Spring Framework and Callable interface.

I. Technology
– Java 8
– Maven 3.3.9
– Editor: Spring Tool Suite – Version 3.7.3.RELEASE

II. Overview of Spring multi-thread with Callable project
– Program has 5 threads, that works concurrently. At parent thread, for managing the returns of all child threads, We use Callable interface.

1. Structure of project

2. Step to do
– Create Spring Boot project.
– Setup ThreadPoolTaskExecutor.
– Create CallableWorker that implements Callable interface.
– Create a Simple Web Controller

III. Practice

1. Create Spring Boot project
Open Spring Tool Suite, choose File-New-Spring Starter Project, input project information
Press Finish then Spring Boot Project will be created.

2. Setup ThreadPoolTaskExecutor

3. Create Callable Worker

4. Create a Simple Web Controller

IV. Run Project

– Build Spring Boot project
Set Goals: clean install

V. Source Code
springboot-threadpool-callable