DataSource bean overriding in spring boot 2.1

2020-07-01 10:18发布

I have upgraded to spring boot 2.1 release and I have got strange exception when starting up the application.

The bean 'dataSource', defined in BeanDefinition defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class], could not be registered. A bean with that name has already been defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class] and overriding is disabled.

The full error message is:

[o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext] Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.support.BeanDefinitionOverrideException: Invalid bean definition with name 'dataSource' defined in BeanDefinition defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]: Cannot register bean definition [Root bean: class [org.springframework.aop.scope.ScopedProxyFactoryBean]; scope=; abstract=false; lazyInit=false; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null; defined in BeanDefinition defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]] for bean 'dataSource': There is already [Root bean: class [null]; scope=refresh; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=false; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.jdbc.DataSourceConfiguration$Hikari; factoryMethodName=dataSource; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]] bound.

Beans must not be overridden according to our policy and it's disabled with:

spring.main.allow-bean-definition-overriding=false

I don't have any data source configuration in my application code. The only option that triggers this error is @EnableAutoConfiguration and in my application properties I have set the data source type to:

spring.datasource.type=com.zaxxer.hikari.HikariDataSource

The boot application is initialized with

@SpringBootApplication
@EnableAutoConfiguration
public class MyApplication extends SpringBootServletInitializer {

    public static void main(String[] args) {
        new MyApplication()
            .configure(new SpringApplicationBuilder(MyApplication.class))
            .run(args);
    }
}

There is also configuration class that imports various other configurations:

@Configuration
@ImportResource(locations = {
    "classpath*:conf/spring/*.xml",
    "classpath*:conf/spring/core/*.xml",
    "classpath*:conf/spring/plugin/**/*.xml"
})
@EnableAsync
@EnableRetry
@EnableCaching
@EnableBatchProcessing
@EnableCircuitBreaker
public class AppConfig {
    ...
}

Does anyone knows what could cause that issue and where to search?

It didn't happened prior to Spring Boot 2.1 (i.e. 2.0.5).

6条回答
Animai°情兽
2楼-- · 2020-07-01 10:36

I got this issue when I try to configure Redis in my project, finally I resolve it by using:

@SpringBootApplication(exclude = { DataSourceAutoConfiguration.class, HibernateJpaAutoConfiguration.class})

I use SpringBoot 2.4.2

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叛逆
3楼-- · 2020-07-01 10:37

I ran into a similar problem with this today and the following spring cloud config issue helped me: Issue 1142.

We were using Spring Cloud Config which is not compatible with Spring Boot 2.1.0 as of yet. The Greenwich release train of Spring Cloud will be compatible with Spring Boot 2.1.0.

Your @EnableCircuitBreaker annotation leads me to believe you might also be using a version of Spring Cloud that is not compatible with the 2.1.0 release of Spring Boot.

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男人必须洒脱
4楼-- · 2020-07-01 10:41

For Spring Boot 2+ you can exclude auto-configuration

@SpringBootApplication(exclude = ElasticsearchDataAutoConfiguration.class)
     public class YourApplication {
 ... }
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三岁会撩人
5楼-- · 2020-07-01 10:49

org.springframework.cloud:spring-cloud-context:2.0.2.RELEASE

RefreshAutoConfiguration causes this issue when refreshing HikariDatasource in

a possible fix is

spring.cloud.refresh.enabled = false
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forever°为你锁心
6楼-- · 2020-07-01 10:50

Adding following Property in application.properties would solve the issue .

spring.main.allow-bean-definition-overriding=true

Further one might have to add another property to resolve another issue mentioned : https://github.com/openzipkin/zipkin/issues/2043

management.metrics.web.server.auto-time-requests=false

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疯言疯语
7楼-- · 2020-07-01 10:58

I ran into a similar problem and it is very generic (sometimes there are duplicated annotation sometimes duplicated beans). In case when you have duplicated annotation like @EnableJpaRepository the error message not mention this annotation at all. The best way to find where the problem is:

Open class DefaultListableBeanFactory There should be code like this:

BeanDefinition existingDefinition = (BeanDefinition)this.beanDefinitionMap.get(beanName);
        if (existingDefinition != null) {
            if (!this.isAllowBeanDefinitionOverriding()) {
                throw new BeanDefinitionOverrideException(beanName, beanDefinition, existingDefinition);
            }

Put a breakpoint in line with throw new. Then existingDefinition.source.className is pointing to configuration which is already registered and here is the problem. When you check the beanDefinition.source.className you will compare both classes and find where duplicated code or annotation is, just delete/fix them.

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