Learn how to build a Spring Boot application using GORM.
plugins {
id 'groovy'
id 'org.springframework.boot'
id 'io.spring.dependency-management'
id 'org.graceframework.grace-core'
}
dependencies {
implementation 'org.codehaus.groovy:groovy'
implementation 'org.graceframework:grace-boot'
implementation 'org.graceframework:grace-core'
implementation 'org.graceframework:grace-plugin-core'
implementation 'org.graceframework:grace-plugin-datasource'
implementation 'org.graceframework.plugins:hibernate5'
runtimeOnly 'com.h2database:h2'
}Update src/main/resources/application.yml,
hibernate:
show_sql: true
hbm2ddl:
auto: create
dialect: org.hibernate.dialect.H2Dialect
dataSource:
dbCreate: create-drop
pooled: true
jmxExport: true
driverClassName: org.h2.Driver
url: jdbc:h2:file:./build/boot_dev;LOCK_TIMEOUT=10000;DB_CLOSE_ON_EXIT=FALSE
username: sa
password:Creating Post.groovy in app/domain,
class Post {
String title
static constraints = {
title(blank: false, nullable: false, maxSize: 255)
}
String toString() {
"#$id $title"
}
}Creating PostService.groovy in app/services,
@grails.gorm.services.Service(Post)
interface PostService {
List<Post> findAll()
Post save(Post post)
}Now, GORM will generate $PostServiceImplementation for your application,
then you can use it in your Spring Boot application just like in Grace,
// Post methods
new Post(title: 'Grace 2022.2.0 is released').save()
Post.list()
Post.where()
// PostService methods
postService.findAll()Staring the App by execute the following Gradle task,
./gradlew bootRunIn the src/main/groovy/grace/guides/GraceApplication, remember that, exculding the AutoConfigurations, HibernateJpaAutoConfiguration, DataSourceAutoConfiguration, TransactionAutoConfiguration in GraceApplication.
@SpringBootApplication(exclude = [HibernateJpaAutoConfiguration, DataSourceAutoConfiguration, TransactionAutoConfiguration])
class GraceApplication implements CommandLineRunner {
@Autowired
BootStrap bootStrap
@Autowired
PostService postService
static void main(String[] args) {
SpringApplication.run(GraceApplication, args)
}
@Override
void run(String... args) throws Exception {
println 'Prepare Sample Data '.padRight(94, '>')
bootStrap.init()
println()
println 'Load All Posts '.padRight(94, '>')
postService.findAll().each {
println it
}
}
}