Encountered when filling the project to write [spring-boot pit]

Errors encountered when integrating Druid: Failed to an under the bind the Properties 'spring.datasource' to javax.sql.DataSource:

　　Need to rely on imported during the integration Druid: ----> Druid rely pom.xml

　　Written when integrated Druid configuration file: config / DruidConfig.java

　　Yml configuration file integration Druid: application.yml