Create Spring Boot Java Project

java -version

Download Spring Boot project template

• Run following command in terminal to download a Spring Boot project template

curl https://start.spring.io/starter.zip \
  -d artifactId=${input:projectName:demo-java} \
  -d bootVersion=3.4.5 \
  -d dependencies=lombok,configuration-processor,web,data-jpa,postgresql,data-redis,data-mongodb,validation,cache,testcontainers \
  -d javaVersion=21 \
  -d packageName=com.example \
  -d packaging=jar \
  -d type=maven-project \
  -o starter.zip

Unzip the downloaded file

• Run following command in terminal to unzip the downloaded file

unzip starter.zip -d ./${input:projectName:demo-java}

Remove the downloaded zip file

• Run following command in terminal to delete the downloaded zip file

rm -f starter.zip

Change directory to the project root

• Run following command in terminal to change directory to the project root

cd ${input:projectName:demo-java}

Add additional dependencies

• Insert springdoc-openapi-starter-webmvc-ui and archunit-junit5 dependency into pom.xml file

<dependency>
  <groupId>org.springdoc</groupId>
  <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
  <version>2.8.6</version>
</dependency>
<dependency>
  <groupId>com.tngtech.archunit</groupId>
  <artifactId>archunit-junit5</artifactId>
  <version>1.2.1</version>
  <scope>test</scope>
</dependency>

Add SpringDoc, Redis, JPA and MongoDB configurations

• Insert SpringDoc configurations into application.properties file

# SpringDoc configurations
springdoc.swagger-ui.doc-expansion=none
springdoc.swagger-ui.operations-sorter=alpha
springdoc.swagger-ui.tags-sorter=alpha

• Insert Redis configurations into application.properties file

# Redis configurations
spring.data.redis.host=localhost
spring.data.redis.port=6379
spring.data.redis.password=rootroot

• Insert JPA configurations into application.properties file

# JPA configurations
spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.url=jdbc:postgresql://localhost:5432/postgres
spring.datasource.username=postgres
spring.datasource.password=rootroot
spring.jpa.hibernate.ddl-auto=update
spring.jpa.show-sql=true
spring.jpa.properties.hibernate.format_sql=true

• Insert MongoDB configurations into application.properties file

# MongoDB configurations
spring.data.mongodb.host=localhost
spring.data.mongodb.port=27017
spring.data.mongodb.authentication-database=admin
spring.data.mongodb.username=root
spring.data.mongodb.password=rootroot
spring.data.mongodb.database=test

Add docker-compose.yaml with Redis, PostgreSQL and MongoDB services

• Create docker-compose.yaml at project root and add following services: redis:6, postgresql:17 and mongo:8.

  • redis service should have
    • password rootroot
    • mapping port 6379 to 6379
    • mounting volume ./redis_data to /data
  • postgresql service should have
    • password rootroot
    • mapping port 5432 to 5432
    • mounting volume ./postgres_data to /var/lib/postgresql/data
  • mongo service should have
    • initdb root username root
    • initdb root password rootroot
    • mapping port 27017 to 27017
    • mounting volume ./mongo_data to /data/db

Add .gitignore file

• Insert redis_data, postgres_data and mongo_data directories in .gitignore file

Run Maven test command

• Run maven clean test command to check if the project is working

./mvnw clean test

Run Maven run command (Optional)

• (Optional) docker-compose up -d to start the services, ./mvnw spring-boot:run to run the Spring Boot project, docker-compose rm -sf to stop the services.

Let's do this step by step