spring 容器启动完成后进行某些操作

两种方法：

@PostConstruct

spring 初始化bean之后会调用。

@PostConstruct
    public void setHashOperation() {
        hashOperation = stringRedisTemplate.opsForHash();
    }

实现ApplicationLIstener

spring 容器加载完成后调用。

@Component
public class ProcessStarter implements ApplicationListener {
@Override
    public void onApplicationEvent(ContextRefreshedEvent event) {
        applicationContext = event.getApplicationContext();
        startMainInNewThread();
    }
}

实现ApplicationRunner

spring 容器加载完成后调用。

@Component
public class ProcessStarter implements ApplicationRunner {
 @Override
    public void run(ApplicationArguments args) throws Exception {
   
    }
}