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：

<parent>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-parent</artifactId>
   <version>2.2.6.RELEASE</version>
   <relativePath/> <!-- lookup parent from repository -->
</parent>

SpringCloud版本：

<dependencyManagement>
   <dependencies>
      <dependency>
         <groupId>org.springframework.cloud</groupId>
         <artifactId>spring-cloud-dependencies</artifactId>
         <version>Hoxton.SR4</version>
         <type>pom</type>
         <scope>import</scope>
      </dependency>
   </dependencies>
</dependencyManagement>

https://blog.csdn.net/j10000001/article/details/106037292/