Spring Boot启动时，报错：

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APPLICATION FAILED TO START
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Description:

The bean 'org.springframework.transaction.config.internalTransactionalEventListenerFactory', defined in null, could not be registered. A bean with that name has already been defined in class path resource [org/springframework/transaction/annotation/ProxyTransactionManagementConfiguration.class] and overriding is disabled.

Action:

Consider renaming one of the beans or enabling overriding by setting spring.main.allow-bean-definition-overriding=true

启动类中的@EnableTransactionManagement与xml配置文件中的<tx:annotation-driven/>重复

解决方式：

1. 保留其中一个

2. 在Spring Boot配置文件中添加

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