1 配置pom.xmlspring
<!--spring-boot-devtools 热部署-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
2 配置idea 的 Compiler 勾选 Build project automatically windows
3 command+shift+a 搜索 registry (windows下是ctrl+shift+a) (下图1)app
双击第一个选项, 打开的列表中 勾选 : compiler.automake.allow.when.app.running(下图2)ide
4setting -- System settings spring-boot
取消 save files on frame deactivationui
勾选 save files automatically if application is idle for 30 sec.idea