报错信息如下：
2024-02-04 16:31:14.832 WARN 952 --- [ main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'databaseConfig': Unsatisfied dependency expressed through field 'dataSource'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'javax.sql.DataSource' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
2024-02-04 16:31:14.835 INFO 952 --- [ main] o.apache.catalina.core.StandardService : Stopping service [Tomcat]
2024-02-04 16:31:14.849 INFO 952 --- [ main] ConditionEvaluationReportLoggingListener : 
原因：@SpringBootApplication(exclude = {DataSourceAutoConfiguration.class, DataSourceTransactionManagerAutoConfiguration.class}) ，当初是没有接入数据库，但application.yml中配置了加了 datasource信息，所以启动类中加了exclude = {DataSourceAutoConfiguration.class, DataSourceTransactionManagerAutoConfiguration.class}，现程序中配置了数据库，需要把exclude去掉
原因是SpringbootApplication上面的注解需要把 exclude 去掉，去掉后完美解决
@SpringBootApplication
public class SpringbootApplication {
public static void main(String[] args) {
SpringApplication.run(SpringbootApplication.class, args);
}
