如何解决可以将注释限定符添加到定义不是我的手的Bean中由@DataMongoTest定义的MongoTemplate
我们在应用程序中使用了多个MongoDB,并为其中一个实体和存储库创建了一个自定义包,并创建了带有注释限定符的自定义配置。
因此,如果我们所有的存储库和一个类的实体都位于com.company.persistance.firstdb
中,而所有其他存储库和实体都位于com.company.persistance.seconddb
中,则我们有两个配置类:
@Configuration
@EnableConfigurationProperties(MongoDbClientProperties::class)
@EnableMongoRepositories(
basePackages = ["com.company.persistance.firstdb"],mongoTemplateRef = "mongoTemplate"
)
class TractiveMongoConfig(val mongoDb: MongoDbProperties,val mongoClient: MongoClient) {
@Bean
@Primary
fun mongoFactory(mongoClient: MongoClient): SimpleMongoClientDatabaseFactory {
return SimpleMongoClientDatabaseFactory(mongoClient,mongoDb.tractive.database)
}
@Bean
@Primary
fun mongoTemplate(mongoConverter: MongoConverter): MongoTemplate {
return MongoTemplate(
mongoFactory(
mongoClient
),mongoConverter
)
}
}
@Qualifier
annotation class SecondDb
@Configuration
@EnableConfigurationProperties(MongoDbClientProperties::class)
@EnableMongoRepositories(
basePackages = ["com.company.persistance.seconddb"],mongoTemplateRef = "aplsMongoTemplate"
)
class AplsMongoConfig(val mongoDb: MongoDbProperties,val mongoClient: MongoClient) {
@Bean
@SecondDb
fun aplsMongoFactory(mongoClient: MongoClient): SimpleMongoClientDatabaseFactory {
return SimpleMongoClientDatabaseFactory(mongoClient,mongoDb.secondDb.database)
}
@Bean
@SecondDb
fun aplsMongoTemplate(mongoConverter: MongoConverter): MongoTemplate {
return MongoTemplate(
aplsMongoFactory(
mongoClient
),mongoConverter
)
}
}
应用程序启动工作正常,我们可以正确读取和写入两个MongoDB的数据。在我们的存储库中,我们编写了一个自定义查询,并在class MySecondDbRepositoryImpl(@SecondDb val mongoTemplate: MongoTemplate)
上方注入了带有限定符的MongoTemplate。现在,我们想为该类编写一个测试-我们可以使用@DataMongoTest
轻松测试与第一个数据库通信的所有存储库(没有注释限定符),因为它将提供MongoTemplate。
现在对于这个需要secondDb mongoTemplate的自定义存储库,我想使用@DataMongoTest
添加测试,但出现以下异常:
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.data.mongodb.core.MongoTemplate' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@com.company.persistance.seconddb.SecondDb()}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1717)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1273)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:884)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:788)
... 48 more
我的其他仅需要MongoTemplate
但没有@SecondDb
限定符的存储库规范可以正常工作,因此我希望我有@DataMongoTest
提供的MongoTemplate,该文档也对此进行了说明。我可以以某种方式使用该MongoTemplate Bean并再次为其提供限定符@SecondDb
吗?
我们尝试了以下操作,导致循环引用错误:
abstract class SecondDbMongoIntegrationSpec : FunSpec() {
override fun listeners(): List<TestListener> {
return listOf(SpringListener)
}
@Configuration
class Config {
@Bean
@SecondDb
fun secondDbMongoTeamplate(mongoTemplate: MongoTemplate) : MongoTemplate {
return mongoTemplate;
}
}
}
循环错误:
Caused by: org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'secondDbMongoTeamplate': Requested bean is currently in creation: Is there an unresolvable circular reference?
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.beforeSingletonCreation(DefaultSingletonBeanRegistry.java:347)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:219)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:276)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1307)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1227)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:884)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:788)
... 62 more
所以TLDR:是否有可能在不属于我的定义的现有Bean中添加注释限定符(又由@DataMongoTest提供)
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