一个简单的SpringBoot入门程序

1. 使用IDEA构建Maven项目

<?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>cn.burgundy</groupId>
    <artifactId>springboot-cheatsheep</artifactId>
    <version>1.0-SNAPSHOT</version>

    <!-- 继承SpringBoot插件 -->
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.3.3.RELEASE</version>
    </parent>

    <dependencies>
        <!-- 启动springBoot web启动器 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

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

2. 创建SpringBoot启动类

/**
 * Created by IntelliJ IDEA.
 *
 * @Auther: ShaoHsiung
 * @Date: 2018/8/29 11:11
 * @Title: 一个简单的SpringBoot应用
 * @Description: SpringBoot启动类
 */
@SpringBootApplication
public class HelloApp {
    public static void main(String[] args) {
        SpringApplication.run(HelloApp.class, args);
    }
}

备注:

1) @SpringBootApplication

2) SpringApplication.run(HelloApp.class, args);

3. 创建第一个Controller

/**
 * Created by IntelliJ IDEA.
 *
 * @Auther: ShaoHsiung
 * @Date: 2018/8/29 11:14
 * @Title: 一个简单的SpringBoot应用
 * @Description: 第一个controller
 */
@RestController
public class HelloController {
    @RequestMapping(method = RequestMethod.GET, path = "/hello")
    public String hello() {
        return "Hello SpringBoot";
    }
}

备注:

1) @RestController: 具备REST API能力, 将每个REST API的返回值自动序列化为JSON格式

2) @RequestMapping(method = RequestMethod.GET, path = "/hello")

4. 使用Maven运行SpringBoot程序

SpringBoot内置服务器

5. 应用启动成功

 

查看到下面这些信息, 说明启动成功...

6. 访问Web应用