【SpringBoot】ConflictingBeanDefinitionException: Annotation-specified bean name……

報錯日志如下：

Caused by:org.springframework.context.annotation.ConflictingBeanDefinitionException: Annotation-specified bean name 'globalExceptionHandler' for bean class [com.cheng.cloud.common.exception.handler.GlobalExceptionHandler] conflicts with existing, non-compatible bean definition of same name and class [com.cheng.media.exception.handler.GlobalExceptionHandler]
    at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.checkCandidate(ClassPathBeanDefinitionScanner.java:345)
    at org.springframework.context.annotation.ClassPathBeanDefinitionScanner.doScan(ClassPathBeanDefinitionScanner.java:283)
    at org.springframework.context.annotation.ComponentScanAnnotationParser.parse(ComponentScanAnnotationParser.java:135)
    at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:287)
    at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245)
    at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:198)
    at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:167)
    ... 21 common frames omitted

 

通過日志可以看出是因為spring容器初始化同名不同包的類時，不知道加載哪一個，而導致的沖突。

因此，我們需要解決沖突，在啟動類Application中去除一個類。

 

@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
@ComponentScan(basePackages = {"com.cheng.media", "com.cheng.cloud"},
        excludeFilters = @ComponentScan.Filter(type = FilterType.ASSIGNABLE_TYPE, classes = {GlobalExceptionHandler.class}))
public class Application extends WebMvcConfigurerAdapter {

　　public static void main(String[] args) {
    　　SpringApplication.run(Application.class, args);
　　}
}