IDEA configuration hot deployment
1.导入 devtools包
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
2. 设置IDEA 点击File -> Setting -> Complier 构选 Builder project automaticatlly
3. Double-click the Shift button continuously and enter "registry". You can see "registry..." in the action column. The configuration of "compiler.automake.allow.when.app.running"
is completed.