一个简单的spring-boot小程序

1.在eclipse中构建maven项目，之后在pom.xml文件中填写必要的配置参数

2.pom.xml文件

<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/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.zhlk</groupId>
  <artifactId>spring-boot</artifactId>
  <packaging>jar</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>spring-boot Maven Webapp</name>
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.2.5.RELEASE</version>
    <relativePath/>
  </parent>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>1.7</java.version>
  </properties>

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

  <build>
    <plugins>
      <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>
    </plugins>
  </build>
  </project>

3.构建maven项目之后如下图

4.配置文件写好之后，按住ctrl+s保存之后，maven会自动下载spring-boot所需要的jar，这可能要花费一段时间。下图是maven下载之后的jar包

5.新建一个Application类

package com.example;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@RestController
public class Application {
    @RequestMapping("/")
    public String greeting() {
        return "一个伟大的spring-boot诞生了！！！";
    }
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

6.运行里面的main方法，效果如下图

7.在浏览器中输入localhost:8080