spring boot入门操作(一)

spring boot入门操作

创建HelloWorld

• 新建maven project ，选择artifact id 为maven-archetype-quicktype

• 创建pom，在project中添加

    <parent>
    	<groupId>org.springframework.boot</groupId>
    	<artifactId>spring-boot-starter-parent</artifactId>
    	<version>1.5.4.RELEASE</version>
    </parent>
  

在properties在添加

	<java.version>1.8</java.version>

在dependencies里添加

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

• update maven

• 创建HelloWorldController类

•   @RestController
    public class HelloWorldController {
    	@RequestMapping("/hello")
    	public String hello(){
    		return "Hello World!";
    	}
    }
  

• 编写启动类 APP.java

    @SpringBootApplication
    public class App 
    {
    	public static void main( String[] args )
    	{
   			 System.out.println( "console  Hello World!" );
    		 SpringApplication.run(App.class, args);
    	} 
    }
  

• 浏览器输入localhost:8080/hello