1.启用devtools插件

2.勾选Build==》compiler==》build project autoautomaticacally

 

3.快捷键shift+ctrl+alt+/  勾选 compiler.automake.allow.when.app.running

4.在springboot插件配置

  <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <fork>true</fork>
                </configuration>
            </plugin>
        </plugins>
    </build>