从0开始学springboot之Hello World

从0开始学springboot之Hello World

1.pom.xml预览

<?xml version="1.0" encoding="UTF-8"?>
<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>com.notnull</groupId>
    <artifactId>community-service</artifactId>
    <version>1.0-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.3.RELEASE</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>


</project>

2.创建SampleController.java

package com.notnull.communityserivce;

import org.springframework.boot.autoconfigure.*;
import org.springframework.web.bind.annotation.*;

@RestController
@EnableAutoConfiguration
public class SampleController {

    @RequestMapping(value = "/helloworld")
    String helloWorld(){
        return "Hello World";
    }
}

3.创建Application.java [用于启动springboot应用]

package com.notnull.communityserivce;

import org.springframework.boot.autoconfigure.*;
import org.springframework.web.bind.annotation.*;

@SpringBootApplication
@EnableAutoConfiguration
@ComponentScan("com.notnull.communityservice")
public class Application {

    public static void main(String[] args){
        SpringApplication.run(Application.class, args);

    }
}

4.启动应用 && 打开浏览器访问

打开浏览器输入http://localhost:8080/helloworld

输出Hello World

Hello World 完结