[Spring] App 구동 후 자동 작업 실행

작성일자 : 2020.02.23

목표 : Spring App 구동 후 특정 작업 실행

 

1. ApplicationRunner 사용 (Parameter 활용 가능)

package com.example.demo.test;

import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.stereotype.Component;

import java.util.Arrays;

@Component
public class RunAfterApplicationStart implements ApplicationRunner {
    @Override
    public void run(ApplicationArguments args) {
        System.out.println("ApplicationRunner Example");
        System.out.println(Arrays.toString(args.getSourceArgs()));
    }
}

 

2. CommandLineRunner 사용 (Parameter 활용 가능)

package com.example.demo.test;

import org.springframework.boot.CommandLineRunner;
import org.springframework.stereotype.Component;

import java.util.Arrays;

@Component
public class RunAfterApplicationStart implements CommandLineRunner {
    @Override
    public void run(String... args) {
        System.out.println("CommandLineRunner Example");
        System.out.println(Arrays.toString(args));
    }
}

 

3. EventListener 사용

package com.example.demo.test;

import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.event.EventListener;
import org.springframework.stereotype.Component;

@Component
public class RunAfterApplicationStart {
    @EventListener(ApplicationReadyEvent.class)
    public void test() {
        System.out.println("ApplicationReadyEventListener Example");
    }
}