1. 添加devtools依赖进入maven工程中
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-devtools</artifactid>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
2. 添加maven插件进入你的pom.xml
<build>
<finalname>buyforyou</finalname>
<plugins>
<plugin>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-maven-plugin</artifactid>
<configuration>
<fork>true</fork>
<addresources>true</addresources>
</configuration>
</plugin>
</plugins>
</build>
3. 开启idea的自动编译选项
4. 快捷键 ctrl+shift+alt+/ 打开registry，选中
5. 重新启动idea即可
