无法确定数据库类型无嵌入式数据库驱动程序类，同时运行的jar

Question

正如我现在面临的问题Cannot determine embedded database driver class for database type NONE问题的标题提及。我建立的应用程序是在spring引导时运行的，当我在intellij中运行代码时工作正常。

我按照有关同一异常的几个问题，他们建议我需要在我的application.properties文件中添加spring.datasource属性。我已经拥有了它们，仍然面临同样的问题。当我使用intellij的工件创建jar文件，然后通过以下命令运行它时，会发生此问题。 java - jar myJar.jar

我application.properties文件

# =============================== 
# = DATA SOURCE 
# =============================== 
spring.datasource.url = jdbc:mysql://localhost:3306/db_wssmith?useSSL=false 
spring.datasource.username = 
spring.datasource.password = 
spring.datasource.driver-class-name=com.mysql.jdbc.Driver 

错误日志，同时运行的jar

ERROR org.springframework.boot.SpringApplication - Application startup failed org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.boot.autoconfigure.orm.jpa.HibernateJpaAutoConfiguration': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'dataSource' defined in class path resource [org/springframework/boot/autoconfigure/jdbc/DataSourceConfiguration$Tomcat.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.tomcat.jdbc.pool.DataSource]: Factory method 'dataSource' threw exception; nested exception is org.springframework.boot.autoconfigure.jdbc.DataSourceProperties$DataSourceBeanCreationException: Cannot determine embedded database driver class for database type NONE. If you want an embedded database please put a supported one on the classpath. If you have database settings to be loaded from a particular profile you may need to active it (no profiles are currently active).

Answer 1

你应该从行家创建罐子，要做到这一点去查看顶部然后工具的Windows/Maven项目，并从那里双击安装在maven中的LifeCycle选项。使用由该命令创建的jar而不是使用intellij。它 应该工作。