1、在IDEA中安装Lombok插件

2

2.1 勾选Javac

Build，Execution，Deployment > Complier > Java Compiler

2.2勾选Enable annotation processing

Build，Execution，Deployment > Complier > Annotation processing

3、检查项目中所导入的Lombok的jar包

3.1Lombok jar包

    <dependencies>
        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>1.18.12</version>
        </dependency>
    </dependencies>

3.2如果报错可以更换Lombok版本号

4、刷新并重启IDEA