一、環境

• IntelliJ IDEA 2017.1.4 x64

二、SpringBoot 配置

<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
			<optional>true</optional>
		</dependency>

<build>
		<plugins>
			<plugin>
				<groupId
 
>org.springframework.boot</groupId>
				<artifactId>spring-boot-maven-plugin</artifactId>
				<configuration>
					<fork>true</fork>
				</configuration>
			</plugin>
		</plugins>
	</build>

三、IDEA 設定

1. 自動build

2. Register配置

Ctrl+Shift+Alt+/ => Register => 找到並勾選compiler.automake.allow.when.app.running =>IDEA重啟

四、測試

確認IDEA重啟後，debug啟動SpringBoot專案，修改第一篇文章的HelloController

@RequestMapping(value = "sayhello", method = RequestMethod.GET)
	public String sayhello(){
		return "Hello SpringBoot !";
	}

"Hello SpringBoot !"; == > "Hello SpringBoot 2 !";

測試成功