一、目的

简单的方式使用springboot启动WEB工程

二、工具及环境

JDK:1.8.0_172
Eclipse:4.11
Maven:3.3.9

三、流程

1. 创建Maven工程

打开eclipse,并通过菜单创建Maven Project

1.png
点击Next

2.png
选择快速启动的模板原型，点击Next

3.png
填写Group Id和Artifact Id,点击 Finish

4.png
Maven工程创建完毕，完成后的目录结构

5.png

2. 添加代码

修改pom.xml文件
添加spring-boot-starter-parent,spring-boot-starter-web,spring-boot-starter-tes,删除junit块，完成后的代码如下

<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>cn.tvery</groupId>
  <artifactId>demo</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <packaging>jar</packaging>

  <name>demo</name>
  <url>http://maven.apache.org</url>
  <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.4.RELEASE</version>
   </parent>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>

  <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>
</project>

添加后保存，稍等片刻，等待maven下载jar包，然后Alt+F5,或者按照下图所示刷新下maven

6.png

弹出窗口，直接点击 OK

7..png

添加类文件
在cn.tvery.demo.controller包下创建HelloController.java

package cn.tvery.demo.controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
@RequestMapping("/hello")
public class HelloController {
    @RequestMapping("")
    public String hello() {
        return "hello world";
    }
}

在cn.tvery.demo包下创建SpringBootRun.java

package cn.tvery.demo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SpringBootRun 
{
    public static void main( String[] args ){
        SpringApplication.run(SpringBootRun.class, args);
    }
}