1.pom文件增加配置
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>provided</scope>
<optional>true</optional>
</dependency>
2.配置自动Build,File-setting
3.IDEA工具默认系统配置
Ctrl+Shift+A,输入Registry
勾上第一个