pom文件添加依赖包
<dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> </dependency> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <configuration> <fork>true</fork><!--必须添加这个配置--> </configuration> </plugin> </plugins> </build>
settings配置搜索compiler并选中确认
window快捷键 Shift+Ctrl+Alt+/选择Registry
选中以后close 重启idea即可生效