問題java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) at com.lw.girl.GirlApplication.main(GirlApplication.java:10) [classes/:na]2017-11-23 16:55:41.819 ?WARN 8528 --- [ ? ? ? ? ? main] o.h.e.j.e.i.JdbcEnvironmentInitiator ? ? : HHH000342: Could not obtain connection to query metadata : Access denied for user 'root'@'localhost' (using password: YES)2017-11-23 16:55:41.821 ?WARN 8528 --- [ ? ? ? ? ? main] ationConfigEmbeddedWebApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]2017-11-23 16:55:41.824 ?INFO 8528 --- [ ? ? ? ? ? main] o.apache.catalina.core.StandardService ? : Stopping service [Tomcat]2017-11-23 16:55:41.853 ?INFO 8528 --- [ ? ? ? ? ? main] utoConfigurationReportLoggingInitializer :?Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.2017-11-23 16:55:41.868 ERROR 8528 --- [ ? ? ? ? ? main] o.s.boot.SpringApplication ? ? ? ? ? ? ? : Application startup failedorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment] at com.lw.girl.GirlApplication.main(GirlApplication.java:10) [classes/:na]Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]Caused by: org.hibernate.HibernateException: Access to DialectResolutionInfo cannot be null when 'hibernate.dialect' not set ... 32 common frames omittedProcess finished with exit code 1環(huán)境spring: ?profiles: ? ?active: dev ?datasource: ? ?driver-class-name: com.mysql.jdbc.Driver ? ?url: jdbc:mysql://localhost:3306/dbgirl ? ?username: root ? ?password: 123456 ?jpa: ? ?hibernate: ? ? ?ddl-auto: create ? ?show-sql: true