Failed to configure a DataSource:‘url’attribute is not specified and no embedded的解决方法

解决方法"/>

Failed to configure a DataSource:‘url’attribute is not specified and no embedded的解决方法

Reason: Failed to determine a suitable driver class

问题详情如下：

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-06-03 15:48:45.482 ERROR 3056 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : ***************************
APPLICATION FAILED TO START
***************************Description:Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured.Reason: Failed to determine a suitable driver classAction:Consider the following:If you want an embedded database (H2, HSQL or Derby), please put it on the classpath.If you have database settings to be loaded from a particular profile you may need to activate it (no profiles are currently active).Process finished with exit code 1

错误说明：未能配置数据源：未指定“url”属性，无法配置嵌入的数据源。
解决方法
方法1：在 pom.xml 配置文件中，加入JDBC 依赖包，在启动配置文件时 ，Spring Boot 的自动装配机制就会去配置文件中找，相关的数据库的连接配置信息，如果找不到则抛出异常信息

 <dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId>
</dependency>

方法2：DataSourceAutoConfiguration会自动加载.可以排除此类的自动配置，在启动类中加入

@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)

修改配置后，测试是否能正常启动，如下图所示：