Question

大家好，我在Spring MVC工作，我有一个问题。

我对交易具有以下bean定义：

<tx:annotation-driven transaction-manager="txManager"/>

    <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource"/>
    </bean>

但是当我运行我的应用程序时，我遇到了这个异常：

2019-05-24 18:14:51调试o.s.b.d.LoggingFailureAnalysisReporter- 由于出现异常，应用程序无法启动 org.springframework.beans.factory.support.BeanDefinitionOverrideException：名称无效的Bean定义 'org.springframework.transaction.config.internalTransactionAdvisor' 在类路径资源中定义 [org / springframework / transaction / annotation / ProxyTransactionManagementConfiguration.class]：无法注册bean定义[root bean：class [null]; scope =; abstract = false; lazyInit = false; autowireMode = 3; dependencyCheck = 0; autowireCandidate = true; primary = false; factoryBeanName = org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration; factoryMethodName = transactionAdvisor; initMethodName = null; destroyMethodName =（推断）;在类路径资源中定义 [org / springframework / transaction / annotation / ProxyTransactionManagementConfiguration.class]] 对于豆 'org.springframework.transaction.config.internalTransactionAdvisor'：已经有[Root bean：class [org.springframework.transaction.interceptor.BeanFactoryTransactionAttributeSourceAdvisor]; scope =; abstract = false; lazyInit = false; autowireMode = 0; dependencyCheck = 0; autowireCandidate = true; primary = false; factoryBeanName = null; factoryMethodName = null; initMethodName = null; destroyMethodName = null]绑定。在 org.springframework.beans.factory.support.DefaultListableBeanFactory.registerBeanDefinition（DefaultListableBeanFactory.java:897）在 org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForBeanMethod（ConfigurationClassBeanDefinitionReader.java:274）在 org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitionsForConfigurationClass（ConfigurationClassBeanDefinitionReader.java:141）在 org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.loadBeanDefinitions（ConfigurationClassBeanDefinitionReader.java:117）在 org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions（ConfigurationClassPostProcessor.java:327）在 org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry（ConfigurationClassPostProcessor.java:232）在 org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors（PostProcessorRegistrationDelegate.java:275）在 org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors（PostProcessorRegistrationDelegate.java:95）在 org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors（AbstractApplicationContext.java:705）在 org.springframework.context.support.AbstractApplicationContext.refresh（AbstractApplicationContext.java:531）在 org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh（ServletWebServerApplicationContext.java:142）在 org.springframework.boot.SpringApplication.refresh（SpringApplication.java:775）在 org.springframework.boot.SpringApplication.refreshContext（SpringApplication.java:397）在 org.springframework.boot.SpringApplication.run（SpringApplication.java:316）在 org.springframework.boot.SpringApplication.run（SpringApplication.java:1260）在 org.springframework.boot.SpringApplication.run（SpringApplication.java:1248）

当我评论tx：annotation-drive时，一切都很好，但是带有@Transactional批注的方法不起作用。我究竟做错了什么？

我的gradle依赖项：

compile group: 'org.springframework', name: 'spring-web', version: '5.1.5.RELEASE'
    compile group: 'org.springframework', name: 'spring-webmvc', version: '5.1.5.RELEASE'
    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '2.1.3.RELEASE'
compile group: 'org.springframework', name: 'spring-jdbc', version: '5.1.5.RELEASE'

Answer 1

您需要做的是启用Bean Overriding。从Spring 2.1开始，此功能默认为禁用。您将得到一个异常，因为已经定义了一个具有相同名称的bean。

Spring 2.1发行说明摘录：Release note 2.1 - Bean Overriding

长话短说，您需要将其添加到您的application.properties文件中：

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

或以Yaml：

spring:
   main:
     allow-bean-definition-overriding: true

为什么由tx注释驱动会产生冲突？

1 个答案: