springboot2 springboot 的引导类

发布时间 2023-11-09 09:43:42作者: 嘎嘎鸭2

SpringBoot 工程提供引导类用来启动程序,SpringBoot 工程启动后创建并初始化 Spring 容器

 

package com.itheima;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;

@SpringBootApplication //引导类,整个程序的入口,加载Bean
public class Springboot01Application {

public static void main(String[] args) {
ConfigurableApplicationContext ctx = SpringApplication.run(Springboot01Application.class, args);//启动了一个Spring容器
Object bean = ctx.getBean("springboot01Controller");
System.out.println(bean);
}

}