添加Dev Tool的依賴

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

修改maven插件

    <build>
        <plugins>

            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <!--fork :  如果沒(méi)有該項(xiàng)配置devtools不會(huì)起作用，即應(yīng)用不會(huì)restart -->
                    <fork>true</fork>
                    <addResources>true</addResources><!--支持靜態(tài)文件熱部署-->
                </configuration>
            </plugin>

        </plugins>
    </build>

Ctrl+ Shift + A 搜索Registry ，或者 Ctrl + Alt+ Shift + / 點(diǎn)擊Registry

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設(shè)置Build Project Automatically

File –> Setting –> Build, Execution, Deployment –> Compiler –> 點(diǎn)擊 Build project automatically

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