自定义SpringApplication

Spring Boot简洁工程生成：https://start.spring.io/

 

默认生成样式：

@SpringBootApplication

public class SpringParentApplication {

 

    public static void main(String[] args) {

 

        SpringApplication.run(SpringParentApplication.class, args);

    }

}

还可以这样定义：

@SpringBootApplication

public class ParentProjectApplication {

    public static void main(String[] args) {

        SpringApplication springapplication = new SpringApplication(ParentProjectApplication.class);

        Map<String,Object> properties = new LinkedHashMap<>();

        properties.put("server.port",0);//设置启动随机端口

        springapplication.setDefaultProperties(properties);

        springapplication.run(args);

    }

}

---

流畅API模式：

@SpringBootApplication

public class ParentProjectApplication {

    public static void main(String[] args) {

        // SpringApplication.run(ParentProjectApplication.class, args);

        new SpringApplicationBuilder(ParentProjectApplication.class)//Fluent API

        .properties("server.port=0")//0会产生随机端口，随机向服务端要一个可用端口

        .run(args);

    }

}