SpringBoot学习helloworld

　　这几天开始学习springBoot记录一下(Hello World)

pom.xml

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>org.bianqi.spring.first</groupId>
     <artifactId>SpringBootFirst</artifactId>
     <version>0.0.1-SNAPSHOT</version>
     <packaging>war</packaging>
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
         <version>1.4.1.RELEASE</version>
     </parent>
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
         </dependency>
     </dependencies>
     <build>
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
                 <configuration>
                     <source>1.7</source>
                     <target>1.7</target>
                 </configuration>
             </plugin>
             <plugin>
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
                 <configuration>
                     <mainClass>${start-class}</mainClass>
                     <layout>ZIP</layout>
                 </configuration>
                 <executions>
                     <execution>
                         <goals>
                             <goal>repackage</goal>
                         </goals>
                     </execution>
                 </executions>
         </plugin>
         </plugins>
     </build>
 </project>

2.编写controller

 package org.bianqi.first.demo;

 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
 import org.springframework.context.annotation.ComponentScan;
 import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;

 @RestController
 @EnableAutoConfiguration
 @ComponentScan
 public class FirstDemo {

     @Autowired
     private FirstService fs;

     @RequestMapping("/")
     String home(){
         fs.demo();
         return "hello world!";
     }
     public static void main(String[] args) {
         SpringApplication.run(FirstDemo.class, args);
     }

 }

3.编写service的接口

 package org.bianqi.first.demo;

 public interface FirstService {
   public String demo();
 }

4.编写service层实现类

 package org.bianqi.first.demo;

 import org.springframework.stereotype.Service;

 @Service
 public class FirstServiceImpl implements FirstService{

     public String demo(){
         System.out.println("hhhhh");
         return "helloworld我爱你";
     }
 }

在Controller中通过main方法启动~浏览器访问http://localhost:8080/ 显示helloworld 并且控制台打印hhhhh