错误信息APPLICATIONFAILEDTOSTART描述：Thebean'dataSource',definedinBeanDefinitiondefinedinclasspathresource[org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class],couldnotberegistered.具有该名称的bean已经在类路径资源[org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Hikari.class]中定义并且覆盖被禁用。操作：考虑重命名其中一个bean或通过设置spring启用覆盖.main.allow-bean-definition-overriding=true方案一：SpringBoot和SpringCloud版本不兼容。方案二：在application.properties配置文件中添加spring.main.allow-bean-definition-overriding=true方案三：Maven报错
