一、Hello Spring Boot

package com.ld.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class IndexController {

    @RequestMapping(value = "index")
    public String index() {

        return "Hello World!!!";
    }
    @RequestMapping(value = "show")
    public String show(){
        return "Hello Spring Boot";
    }
}

package com.ld.controller;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class RootApplication {

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

pom.xml文件配置

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.4.0.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
</parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

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

运行程序main方法，在浏览器输入：http://localhost:8080/index