Spring Boot 入門篇，簡單例子

一個簡單入門例子
先創建個maven工程先



web工程和非web工程



pom.xml中配置

<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.demo</groupId>
	<artifactId>spring_boot_demo</artifactId>
	<packaging>war</packaging>
	<version>0.0.1-SNAPSHOT</version>
	<name>spring_boot_demo Maven Webapp</name>
	<url>http://maven.apache.org</url>
	<!-- springboot的核心啓動器 -->
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.0.RELEASE</version>
		<relativePath />
	</parent> 

	<properties>
		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
	</properties>

	<dependencies>
		<!-- springboot的依賴包 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
	</dependencies>
	<build>
		<finalName>spring_boot_demo</finalName>
	</build>
	
</project>

啓動類Application.java中

package com.demo;

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

/**
 * 項目啓動類
 * @author Administrator
 *
 */
@SpringBootApplication
public class Application {

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

創建個controller類

package com.demo.contr;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class DemoController {

	
	@RequestMapping(value="/demo")
	@ResponseBody
	public String getDemo(){
		return "Spring boot 入門測試";
	}
}

然後啓動Application.java

這裏會顯示端口號和路徑（在後期配置中可以修改端口和路徑）

頁面輸出：

OK入門測試完成