The bean 'dataSource',could not be registered.A bean with that name has already been defined

Posted 2021-06-06 迷茫王子

问题：

往SpringCloud的注册中心里注册服务时启动SpringBoot项目抛出异常。项目启动报错。

 

***************************
APPLICATION FAILED TO START
***************************
Description:

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.

Action:

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

 

原因：

SpringBoot和SpringCloud的版本不兼容造成。

 

解决方案:

在配置文件application.yml中添加两行配置信息即可，配置如下：

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