spring boot入門操作(一)

spring boot入門操作

創建HelloWorld

• 新建maven project ，選擇artifact id 為maven-archetype-quicktype

• 創建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
• 創建HelloWorldController類

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

• 編寫啟動類 APP.java

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

• 瀏覽器輸入localhost:8080/hello