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SpringBoot best practice

springboot-bestpractice Apache License

About Spring Boot architecture.

This repository support multiple database by SPRING_PROFILES_ACTIVE

  • RDBMS
  • MongoDB
  • Cassandra
  • Redis

Requirements

  • Docker engine
  • Docker Compose
  • OpenJDK 17
  • Spring Boot 2

Docker database

MySQL8

  • Standalone

MongoDB

  • Standalone

Cassandra cluster.

  • 3 Nodes

Architecture

The "app" package holds controllers for API endpoints and provides interception. The "app" package can depend on the "domain" package.

The "domain" package provides business logic and holds Spring Component Beans or Service Beans. It cannot depend on the "app" package but relies on the "infrastructure" package.

The "infrastructure" package provides data storage by holding Spring Repository Beans. It is independent and cannot depend on the "app" and "domain" packages.

The "common" package offers generic functions.

Initialization processes during server startup depend on "SPRING_PROFILES_ACTIVE" and assume the specified data store's Bean as a prerequisite for the initial startup.

Directory structure

java
    │   │   └── com
    │   │       └── bestpractice
    │   │           └── api
    │   │               ├── Application.java
    │   │               ├── app
    │   │               │   ├── AdviceController.java
    │   │               │   ├── AppBean.java
    │   │               │   ├── InterceptorController.java
    │   │               │   ├── v1
    │   │               │   │   ├── AuthController.java
    │   │               │   │   ├── HelloController.java
    │   │               │   │   ├── RdbmsController.java
    │   │               │   │   └── UserController.java
    │   │               │   └── v2
    │   │               │       └── AuthorizationController.java
    │   │               ├── common
    │   │               │   ├── exception
    │   │               │   │   ├── BadRequest.java
    │   │               │   │   ├── Conflict.java
    │   │               │   │   ├── Forbidden.java
    │   │               │   │   ├── InternalServerError.java
    │   │               │   │   ├── NotFound.java
    │   │               │   │   ├── RequestTimeout.java
    │   │               │   │   ├── ServiceUnavailable.java
    │   │               │   │   └── UnAuthorized.java
    │   │               │   ├── property
    │   │               │   │   └── CredentialProperty.java
    │   │               │   └── util
    │   │               │       └── Util.java
    │   │               ├── domain
    │   │               │   ├── DomainBean.java
    │   │               │   ├── component
    │   │               │   │   ├── AuthComponent.java
    │   │               │   │   ├── BCryptPasswordEncryptionComponent.java
    │   │               │   │   └── RequestInfoComponent.java
    │   │               │   ├── model
    │   │               │   │   ├── AuthByEmailRequest.java
    │   │               │   │   ├── AuthByRefreshTokenRequest.java
    │   │               │   │   ├── AuthResponse.java
    │   │               │   │   ├── Credential.java
    │   │               │   │   ├── ErrorResponse.java
    │   │               │   │   ├── InfoRequest.java
    │   │               │   │   ├── InfoResponse.java
    │   │               │   │   ├── UserRequest.java
    │   │               │   │   └── UserResponse.java
    │   │               │   └── service
    │   │               │       ├── AuthService.java
    │   │               │       ├── AuthServiceImpl.java
    │   │               │       ├── InfoService.java
    │   │               │       ├── InfoServiceImpl.java
    │   │               │       ├── UserService.java
    │   │               │       └── UserServiceImpl.java
    │   │               └── infrastrucuture
    │   │                   ├── InfrastructureBean.java
    │   │                   ├── cache
    │   │                   │   ├── CacheRepository.java
    │   │                   │   ├── local
    │   │                   │   │   └── LocalCacheRepository.java
    │   │                   │   └── redis
    │   │                   │       ├── RedisCacheRepository.java
    │   │                   │       └── RedisProperty.java
    │   │                   ├── entity
    │   │                   │   ├── Info.java
    │   │                   │   ├── SharedData.java
    │   │                   │   └── User.java
    │   │                   └── persistent
    │   │                       ├── InfoPersistentRepository.java
    │   │                       ├── UserPersistentRepository.java
    │   │                       ├── cassandra
    │   │                       │   ├── CassandraInfoPersistentRepository.java
    │   │                       │   ├── CassandraUserPersistentRepository.java
    │   │                       │   └── property
    │   │                       │       └── CassandraProperty.java
    │   │                       ├── local
    │   │                       │   ├── LocalInfoPersistentRepository.java
    │   │                       │   └── LocalUserPersistentRepository.java
    │   │                       ├── mongo
    │   │                       │   ├── MongoInfoPersistentRepository.java
    │   │                       │   ├── MongoUserPersistentRepository.java
    │   │                       │   ├── entity
    │   │                       │   │   ├── MongoInfoEntity.java
    │   │                       │   │   └── MongoUserEntity.java
    │   │                       │   └── property
    │   │                       │       └── MongoProperty.java
    │   │                       └── rdbms
    │   │                           ├── RdbmsInfoPersistentRepository.java
    │   │                           └── RdbmsUserPersistentRepository.java

Interceptor JWT verification

  • app/InterceptorController.java

MySQL Repository injection

  • infrastructure/persistent/rdbms/RdbmsUserPersistentRepository.java
  • infrastructure/persistent/rdbms/RdbmsInfoPersistentRepository.java

MongoDB Repository injection

  • infrastructure/persistent/mongo/RdbmsUserPersistentRepository.java
  • infrastructure/persistent/mongo/RdbmsInfoPersistentRepository.java

Cassandra Repository injection

  • infrastructure/persistent/cassandra/RdbmsUserPersistentRepository.java
  • infrastructure/persistent/cassandra/RdbmsInfoPersistentRepository.java

Redis Repository injection

  • infrastructure/cache/redis/RedisCacheRepository.java

Getting Started

Start database process

# RDBMS
docker-compose run -p 3306:3306 mysql_db

# Mongo
docker-compose run -p 27017:27017 mongo_db

# Cassandra
docker-compose up cassandra_01 cassandra_02 cassandra_03

Start api server via script

# RDBMS
./scripts/start_server.sh --spring_profile=local,db_rdbms

# Mongo
./scripts/start_server.sh --spring_profile=local,db_mongo

# Cassandra
./scripts/start_server.sh --spring_profile=local,db_cassandra

License

Apache-2.0