我的生产文件中有以下配置：
@Configuration
internal class Config {
@Bean
fun clock() = Clock.systemUTC()
}
在测试中：
@Configuration
class ClockTestConfiguration {
@Bean
fun clock() = SetableClock()
}
我的测试注释：
@SpringBootTest(
webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
classes = [
MyApplication::class,
ClockTestConfiguration::class
]
)
class MyTest {
...
当我使用 Spring Boot2.0.5.RELEASE时，它就像一个魅力。升级到2.1.0.RELEASE它后，在 bean 注册期间失败。
Caused by: org.springframework.beans.factory.support.BeanDefinitionOverrideException: Invalid bean definition with name 'clock' defined in com.foo.clock.ClockTestConfiguration:
Cannot register bean definition [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=clockTestConfiguration; factoryMethodName=clock; initMethodName=null; destroyMethodName=(inferred);
defined in com.foo.clock.ClockTestConfiguration] for bean 'clock': There is already [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=config; factoryMethodName=clock; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [com/foo/clock/Config.class]] bound.
at org.springframework.beans.factory.support.DefaultListableBeanFactory.registerBeanDefinition(DefaultListableBeanFactory.java:894)
有没有一种干净的方法来覆盖这样的bean？