SpringBoot组件扫描未覆盖导致Bean注册失败问题的解决方案

Parameter 0 of constructor in com.example.service.impl.XXXServiceImpl required a bean of type 'com.example.common.util.XXXUtil' that could not be found.

- service (主模块，包含启动类)
- common (公共模块，包含 XXXUtil)

@SpringBootApplication
@ComponentScan(basePackages = {
    "com.example.service",          // 主模块包
    "com.example.common.util"       // 公共模块包
})
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

@SpringBootApplication
@Import(XXXUtil.class)  // 手动注册 XXXUtil
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

@Configuration
public class CommonConfig {
    @Bean
    public XXXUtil xxxUtil() {
        return new XXXUtil();
    }
}

@SpringBootApplication
@ComponentScan(basePackageClasses = {XXXUtil.class})
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

@ComponentScan(
    basePackages = "com.example",
    excludeFilters = @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, classes = ExcludedClass.class)
)

<!-- service/pom.xml -->
<dependencies>
    <dependency>
        <groupId>com.example</groupId>
        <artifactId>common</artifactId>
        <version>1.0.0</version>
    </dependency>
</dependencies>

// service/build.gradle
dependencies {
    implementation project(':common')
}

ConditionEvaluationReport:
Positive matches:
-----------------
   XXXUtil matched by ... (component scan)

@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        ApplicationContext context = SpringApplication.run(Application.class, args);
        if (context.containsBean("xxxUtil")) {
            System.out.println("✅ Bean 'xxxUtil' is registered.");
        } else {
            System.out.println("❌ Bean 'xxxUtil' is NOT registered.");
        }
    }
}

public class CustomImportSelector implements ImportSelector {
    @Override
    public String[] selectImports(AnnotationMetadata importingClassMetadata) {
        return new String[]{"com.example.common.util.XXXUtil"};
    }
}

@Bean
@ConditionalOnMissingBean
public XXXUtil xxxUtil() {
    return new XXXUtil();
}