Spring Boot未读取数据源的application.properties

Question

我已经将数据源详细信息放在/resources/application.properties文件中：

spring.datasource.url = jdbc:mysql://localhost:3306/dsm
spring.datasource.username = root
spring.datasource.password = admin123
spring.datasource.testWhileIdle = true
spring.datasource.validationQuery = SELECT 1

spring.jpa.show-sql = true
spring.jpa.hibernate.ddl-auto = update
spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategy

spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect

@PropertySource("classpath:application.properties")

2015-11-23 14:44:30.232  INFO 54329 --- [on(2)-127.0.0.1] o.s.b.c.embedded.FilterRegistrationBean  : Mapping filter: 'requestContextFilter' to: [/*]
2015-11-23 14:44:31.522  INFO 54329 --- [on(2)-127.0.0.1] j.LocalContainerEntityManagerFactoryBean : Building JPA container EntityManagerFactory for persistence unit 'default'
2015-11-23 14:44:31.535  INFO 54329 --- [on(2)-127.0.0.1] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
    name: default
    ...]
2015-11-23 14:44:31.629  INFO 54329 --- [on(2)-127.0.0.1] org.hibernate.Version                    : HHH000412: Hibernate Core {4.3.11.Final}
2015-11-23 14:44:31.632  INFO 54329 --- [on(2)-127.0.0.1] org.hibernate.cfg.Environment            : HHH000206: hibernate.properties not found
2015-11-23 14:44:31.636  INFO 54329 --- [on(2)-127.0.0.1] org.hibernate.cfg.Environment            : HHH000021: Bytecode provider name : javassist
2015-11-23 14:44:31.824  INFO 54329 --- [on(2)-127.0.0.1] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {4.0.5.Final}
23-Nov-2015 14:44:32.005 WARNING [RMI TCP Connection(2)-127.0.0.1] org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver Not loading a JDBC driver as driverClassName property is null.
23-Nov-2015 14:44:32.008 SEVERE [RMI TCP Connection(2)-127.0.0.1] org.apache.tomcat.jdbc.pool.ConnectionPool.init Unable to create initial connections of pool.
 java.sql.SQLException: The url cannot be null

@SpringBootApplication
public class Application extends SpringBootServletInitializer {

    public static void main(String[] args) {
        ApplicationContext ctx = SpringApplication.run(Application.class, args);
    }

}

Answer 1

原来，问题在于Intellj将以前已经删除的类和文件部署到TomCat中。

我清除了IntellJ中的“目标”文件夹并重新部署。