1.繼承 springboot

pom:

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.0.RELEASE</version>
        <!-- 父專案的pom.xml檔案的相對路徑; 預設值是../pom.xml。-->
        <relativePath
 
 />
    </parent>
    <!--會被子模組繼承該依賴-->
    <dependencies>
        <!-- spring-boot的web啟動的jar包 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </
 
dependency>
    </dependencies>

2.引入 springboot

pom:

    <!--宣告依賴，子專案若沒有顯示宣告，不會被引入-->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <!-- Import dependency management from Spring Boot -->
                <groupId>
 
org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>2.0.0.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    
    <dependencies>
        <!-- spring-boot的web啟動的jar包 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>

3.啟動類

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

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

@SpringBootApplication：等同於@Configuration、@EnableAutoConfiguration、@ComponentScan三個註解。

4.測試類

@Controller
@RequestMapping(value = "/demo")
public class DemoController {

    @RequestMapping(value = "/test1", method = {RequestMethod.GET,RequestMethod.POST})
    @ResponseBody //返回結果不會被解析為跳轉路徑，而是直接寫入HTTP 響應正文中（ResponseBody）中
    public Map test1(){
        Map respMap = new HashMap();
        respMap.put("code","007");
        respMap.put("message","測試demo1");

        return  respMap;
    }
}