1、在pom.xml文件中引入jar包
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
2、application.yml文件修改配置
spring:
devtools:
restart:
enabled: true
additional-paths: src/main/java
exclude: WEB-INF/**
3、修改IDEA
(1)File→ Settings→ Compiler→ Build Project automatically
(2)ctrl + shift + alt + /,选择Registry,勾上 Compiler autoMake allow when app running