springboot： Failed to bind properties under ‘spring.datasource’ to javax.sql.DataSource

Failed to bind properties under ‘spring.datasource’ to javax.sql.DataSource

原因，缺少依賴

<dependency>
		    <groupId>log4j</groupId>
		    <artifactId>log4j</artifactId>
		    <version>1.2.17</version>
		</dependency>

完成！