一、开启idea自动make功能
1 - Enable Automake from the compiler
PRESS: CTRL + SHIFT + A
TYPE: make project automatically
PRESS: Enter
Enable Make Project automatically feature
2 - Enable Automake when the application is running
PRESS: CTRL + SHIFT + A
TYPE: Registry
Find the key compiler.automake.allow.when.app.running and enable it
Note: Restart your application now
两步：
1、CTRL + SHIFT + A --> 查找make project automatically --> 选中
2、CTRL + SHIFT + A --> 查找Registry --> 找到并勾选compiler.automake.allow.when.app.running
当然了，要在pom.xml中添加上 spring开发工具包
org.springframework.boot spring-boot-devtools true runtime
在IDEA中开启自动编译：
