快速构建第一个SpringBoot应用

一 创建Maven项目

二 编辑.m2/settings.xml,修改Maven镜像配置为阿里云

<mirror>
  <id>nexus-aliyun</id>
  <mirrorOf>*</mirrorOf>
  <name> nexus aliyun </name>
  <url> http://maven.aliyun.com/nexus/content/groups/public</url>;
</mirror>

三 编辑pom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/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd";>
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.imooc</groupId>
  <artifactId>girl</artifactId>
  <version>0.0.1-SNAPSHOT</version>
 
  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.1.RELEASE</version>
  </parent>
 
  <properties>
     <java.version>1.8</java.version>
  </properties>
 
  <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
  </dependencies>
 
</project>

四 创建启动程序

package com.imooc;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class GirlApplication {
     public static void main(String[] args){
           SpringApplication.run(GirlApplication.class, args);
     }
}

五 创建Controller

package com.imooc;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class HelloController {
     
     @RequestMapping(value="/hello",method=RequestMethod.GET)
     public String say()
     {
           return "Hello Spring Boot!";
     }
}

六 启动项目的三种方式

1 在IDE中启动

2 进入项目目录，通过下面方式启动

mvn spring-boot:run

3 编译程序生成jar包，然后通过java命令启动jar包

mvn install

java –jar program.jar

七 测试结果