我的idea版本是：
IntelliJ IDEA 2022.2.2 (Community Edition)
Build #IC-222.4167.29, built on September 13, 2022
Runtime version: 17.0.4+7-b469.53 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 11 10.0
GC: G1 Young Generation, G1 Old Generation
Memory: 1912M
Cores: 8
Non-Bundled Plugins:
dev.flikas.idea.spring.boot.assistant.plugin (0.14.5)
Kotlin: 222-1.7.20-release-201-IJ4167.29
打开两个开关
加上springboot的热部署依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>