Spring Boot アプリケーションをお手軽に本番運用

$ mkdir expt-apprunner-springboot && cd expt-apprunner-springboot
$ gradle init

// build.gradle
plugins {
    id 'java'
    id 'org.springframework.boot' version '2.7.7'
    id 'io.spring.dependency-management' version '1.1.0'
}

java {
    toolchain {
        languageVersion = JavaLanguageVersion.of(11)
    }
}

repositories {
    mavenCentral()
}

dependencies {
    implementation('org.springframework.boot:spring-boot-starter-web')
}

// build.gradle
plugins {
    id 'java'
    id 'org.springframework.boot' version '2.7.7'
    id 'io.spring.dependency-management' version '1.1.0'
}

java {
    toolchain {
        languageVersion = JavaLanguageVersion.of(11)
    }
}

repositories {
    mavenCentral()
}

dependencies {
    implementation('org.springframework.boot:spring-boot-starter-web')
}

// src/main/java/com/example/exptapprunnerspringboot/Application.java

package com.example.exptapprunnerspringboot;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@RestController
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

    @GetMapping("/")
    public String root() {
        return "hello";
    }

}

$ ./gradlew bootRun

# 別ターミナルで
$ curl http://localhost:8080
hello

$ git remote add origin git@github.com:xxx/expt-apprunner-springboot.git
$ git branch -M main
$ git add -A
$ git push -u origin main

$ curl <Default domain に表示されたURL>
hello