引入 javax.annotation 和 lombok 依赖 1 2 3 4 5 6 7 8 9 10 <dependency> <groupId>javax.annotation</groupId> <artifactId>jsr250-api</artifactId> <version>1.0</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.18.30</version> </dependency>