SpringBoot启动时报错：The bean 'dataSource', defined in BeanDefinition defined in class path resource

SpringBoot启动时报错：

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.

这个问题主要是由于springBoot跟SpringCloud版本包不兼容导致的，修改一下版本号，重新导入maven即可解决，附上一张SpringCloud官网的版本对照图，同学们可以根据对照图选择适合自己的包

Table 1. Release train Spring Boot compatibility

Release Train	Boot Version
Hoxton	2.2.x
Greenwich	2.1.x
Finchley	2.0.x
Edgware	1.5.x
Dalston	1.5.x

 

由于我用的springBoot版本是2.2.6，所以选择了Cloud为Hoxton的版本包

springBoot版本：

   org.springframework.boot
   spring-boot-starter-parent
   2.2.6.RELEASE
    

SpringCloud版本：

   
      
         org.springframework.cloud
         spring-cloud-dependencies
         Hoxton.SR4
         pom
         import