15-springboot创建非web应用

发布时间 2023-03-24 16:26:17作者: companion

Spring Boot 框架中,要创建一个非Web应用程序(纯Java程序):

方式一:

1、SpringBoot开发纯Java程序,应该采用如下的起步依赖:

<!-- Springboot开发java项目的起步依赖 -->

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter</artifactId>

</dependency>

2、直接在main方法中,根据SpringApplication.run()方法获取返回的Spring容器对象,再获取业务bean进行调用;

public static void main(String[] args) {

    ConfigurableApplicationContext context = SpringApplication.run(SpringBootConsoleApplication.class, args);

    HelloMessageService helloMessageService = (HelloMessageService)context.getBean("helloMessageService");

    String hi = helloMessageService.getMessage("springboot main");

    System.out.println(hi);

}

方式二:

1、SpringBoot开发纯Java程序,应该采用如下的起步依赖:

<!-- Springboot开发java项目的起步依赖 -->

<dependency>

    <groupId>org.springframework.boot</groupId>

    <artifactId>spring-boot-starter</artifactId>

</dependency>

2、Spring boot 的入口类实现CommandLineRunner接口;

3、覆盖CommandLineRunner接口的run()方法,run方法中编写具体的处理逻辑即可;

@Autowired

private HelloMessageService helloMessageService;

@Override

public void run(String... args) throws Exception {

    System.out.println("hello world!");

    String ss = helloMessageService.getMessage("aaa111");

    System.out.println(ss);

}