IntelliJ运行Spring Boot应用时无法识别Lombok生成的setter方法

运行Spring Boot应用时，IntelliJ抛出Lombok setter相关错误（如java: cannot find symbol symbol: method setId(java.lang.String)），但项目结构无编译问题，且Maven构建可成功完成。

Build配置 #

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <executions>
                <execution>
                    <goals>
                        <goal>build-image</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <skip>true</skip>
                <image>
                    <name>restaurant-image</name>
                </image>
                <excludes>
                    <exclude>
                        <groupId>org.projectlombok</groupId>
                        <artifactId>lombok</artifactId>
                    </exclude>
                </excludes>
                <layers>
                    <enabled>true</enabled>
                </layers>
            </configuration>
        </plugin>

        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-surefire-plugin</artifactId>
            <version>${maven-surefire-plugin.version}</version>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.12.1</version>
            <configuration>
                <annotationProcessorPaths>
                    <path>
                        <groupId>org.mapstruct</groupId>
                        <artifactId>mapstruct-processor</artifactId>
                        <version>${org.mapstruct.version}</version>
                    </path>
                    <path>
                        <groupId>org.projectlombok</groupId>
                        <artifactId>lombok</artifactId>
                    </path>
                    <path>
                        <groupId>org.projectlombok</groupId>
                        <artifactId>lombok-mapstruct-binding</artifactId>
                        <version>${org.projectlombok.lombok-mapstruct-binding.version}</version>
                    </path>
                </annotationProcessorPaths>
            </configuration>
        </plugin>
    </plugins>
</build>

Maven构建警告（构建成功） #

WARNING: A Java agent has been loaded dynamically (C:\Users\mazin\.m2\repository\net\bytebuddy\byte-buddy-agent\1.14.12\byte-buddy-agent-1.14.12.jar)
WARNING: If a serviceability tool is in use, please run with -XX:+EnableDynamicAgentLoading to hide this warning
WARNING: If a serviceability tool is not in use, please run with -Djdk.instrument.traceUsage for more information
WARNING: Dynamic loading of agents will be disallowed by default in a future release
OpenJDK 64-Bit Server VM warning: Sharing is only supported for boot loader classes because bootstrap classpath has been appended

[WARNING] Overwriting artifact's file from C:\Users\mazin\Downloads\demo\restaurant\target\restaurant-0.0.1-SNAPSHOT.jar to C:\Users\mazin\Downloads\demo\restaurant\target\classes

运行时错误 #

java: cannot find symbol
  symbol:   method setId(java.lang.String)

解决步骤 #

1. 确认IntelliJ的Lombok插件已启用 #

• 打开IntelliJ设置（File > Settings），搜索Plugins
• 找到Lombok插件，确保处于启用状态，未启用则安装后重启IDE

2. 开启注解处理器支持 #

• 进入Settings > Build, Execution, Deployment > Compiler > Annotation Processors
• 勾选Enable annotation processing选项，点击Apply保存

3. 刷新Maven依赖并重新构建 #

• 在IntelliJ右侧Maven面板，点击Reload All Maven Projects按钮
• 执行clean和compile命令，确保Lombok生成的字节码正常生成

4. 调整Spring Boot插件的exclude配置 #

你的Spring Boot Maven插件中排除了Lombok：

<excludes>
    <exclude>
        <groupId>org.projectlombok</groupId>
        <artifactId>lombok</artifactId>
    </exclude>
</excludes>

虽然Maven构建能成功，但IDE运行时需要依赖Lombok解析注解，可尝试移除该exclude配置。

5. 清除IDE缓存并重启 #

• 执行File > Invalidate Caches...，选择Invalidate and Restart
• 解决可能存在的缓存不一致问题

内容的提问来源于stack exchange，提问作者Mazin Ismail