2.springboot: Quickly create springboot project

 IDEA springboot use to quickly create project process:

 

 Create a new project selection

 

 

 

The project name and package name

 

 

 What we need to import what package package

 

 

Unit testing

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <scope>test</scope>
</dependency>

 

 

At this point the project by default have the start of the main program

 

 

Springboot01Application.java

@SpringBootApplication
public class Springboot01Application {
    public static void main(String[] args) {
        SpringApplication.run(Springboot01Application.class, args);
    }
}

 

Create a packet controller and controller classes:

//此时类的所有方法都会返回数据给浏览器（对象是专为json）
//@RestController  = @ResponseBody + @Controller
@ResponseBody
@Controller
public class Helloword {
    @RequestMapping("/hello")
    public  String hello(){

        return "Hello tow!";
    }
}

 

 运行访问：

 

 

 springboot工程结构：

 

 

static文件夹：保存所有的静态资源

templates文件夹：保存所有的模板页面（Springboot默认jar使用嵌入式的Tomcat，默认不支持jsp页面）；可以使用模板引擎

application.properties：springboot应用的配置文件